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castelog

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Programación JavaScript en castellano.

24,920 lines 1.13 MB


//Included:lib/000.inicializacion.part.js
// CASTELOG@0.0.1
// Aquí empieza el script de Castelog //////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

//Included:lib/001.axios-v0.26.1.part.js
/*lib:axios@0.26.1*/
(function (root, factory) {
  const scope = (typeof window === 'object') ? window : global;
  if("axios" in scope) return scope["axios"];
  const output = factory();
	if(typeof module === 'object' && typeof module.exports === 'object')
		module.exports = output;
	if(typeof define === 'function' && define.amd)
		define([], factory);
	if(typeof exports === 'object')
		exports["axios"] = output;
  scope["axios"] = output;
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ 		}
/******/ 	};
/******/
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/******/ 	__webpack_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ 		}
/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
/******/ 	};
/******/
/******/ 	// create a fake namespace object
/******/ 	// mode & 1: value is a module id, require it
/******/ 	// mode & 2: merge all properties of value into the ns
/******/ 	// mode & 4: return value when already ns object
/******/ 	// mode & 8|1: behave like require
/******/ 	__webpack_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __webpack_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__webpack_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ 		return ns;
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "";
/******/
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(__webpack_require__.s = "./index.js");
/******/ })
/************************************************************************/
/******/ ({

/***/ "./index.js":
/*!******************!*\
  !*** ./index.js ***!
  \******************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__(/*! ./lib/axios */ "./lib/axios.js");

/***/ }),

/***/ "./lib/adapters/xhr.js":
/*!*****************************!*\
  !*** ./lib/adapters/xhr.js ***!
  \*****************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");
var settle = __webpack_require__(/*! ./../core/settle */ "./lib/core/settle.js");
var cookies = __webpack_require__(/*! ./../helpers/cookies */ "./lib/helpers/cookies.js");
var buildURL = __webpack_require__(/*! ./../helpers/buildURL */ "./lib/helpers/buildURL.js");
var buildFullPath = __webpack_require__(/*! ../core/buildFullPath */ "./lib/core/buildFullPath.js");
var parseHeaders = __webpack_require__(/*! ./../helpers/parseHeaders */ "./lib/helpers/parseHeaders.js");
var isURLSameOrigin = __webpack_require__(/*! ./../helpers/isURLSameOrigin */ "./lib/helpers/isURLSameOrigin.js");
var createError = __webpack_require__(/*! ../core/createError */ "./lib/core/createError.js");
var transitionalDefaults = __webpack_require__(/*! ../defaults/transitional */ "./lib/defaults/transitional.js");
var Cancel = __webpack_require__(/*! ../cancel/Cancel */ "./lib/cancel/Cancel.js");

module.exports = function xhrAdapter(config) {
  return new Promise(function dispatchXhrRequest(resolve, reject) {
    var requestData = config.data;
    var requestHeaders = config.headers;
    var responseType = config.responseType;
    var onCanceled;
    function done() {
      if (config.cancelToken) {
        config.cancelToken.unsubscribe(onCanceled);
      }

      if (config.signal) {
        config.signal.removeEventListener('abort', onCanceled);
      }
    }

    if (utils.isFormData(requestData)) {
      delete requestHeaders['Content-Type']; // Let the browser set it
    }

    var request = new XMLHttpRequest();

    // HTTP basic authentication
    if (config.auth) {
      var username = config.auth.username || '';
      var password = config.auth.password ? unescape(encodeURIComponent(config.auth.password)) : '';
      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);
    }

    var fullPath = buildFullPath(config.baseURL, config.url);
    request.open(config.method.toUpperCase(), buildURL(fullPath, config.params, config.paramsSerializer), true);

    // Set the request timeout in MS
    request.timeout = config.timeout;

    function onloadend() {
      if (!request) {
        return;
      }
      // Prepare the response
      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;
      var responseData = !responseType || responseType === 'text' ||  responseType === 'json' ?
        request.responseText : request.response;
      var response = {
        data: responseData,
        status: request.status,
        statusText: request.statusText,
        headers: responseHeaders,
        config: config,
        request: request
      };

      settle(function _resolve(value) {
        resolve(value);
        done();
      }, function _reject(err) {
        reject(err);
        done();
      }, response);

      // Clean up request
      request = null;
    }

    if ('onloadend' in request) {
      // Use onloadend if available
      request.onloadend = onloadend;
    } else {
      // Listen for ready state to emulate onloadend
      request.onreadystatechange = function handleLoad() {
        if (!request || request.readyState !== 4) {
          return;
        }

        // The request errored out and we didn't get a response, this will be
        // handled by onerror instead
        // With one exception: request that using file: protocol, most browsers
        // will return status as 0 even though it's a successful request
        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
          return;
        }
        // readystate handler is calling before onerror or ontimeout handlers,
        // so we should call onloadend on the next 'tick'
        setTimeout(onloadend);
      };
    }

    // Handle browser request cancellation (as opposed to a manual cancellation)
    request.onabort = function handleAbort() {
      if (!request) {
        return;
      }

      reject(createError('Request aborted', config, 'ECONNABORTED', request));

      // Clean up request
      request = null;
    };

    // Handle low level network errors
    request.onerror = function handleError() {
      // Real errors are hidden from us by the browser
      // onerror should only fire if it's a network error
      reject(createError('Network Error', config, null, request));

      // Clean up request
      request = null;
    };

    // Handle timeout
    request.ontimeout = function handleTimeout() {
      var timeoutErrorMessage = config.timeout ? 'timeout of ' + config.timeout + 'ms exceeded' : 'timeout exceeded';
      var transitional = config.transitional || transitionalDefaults;
      if (config.timeoutErrorMessage) {
        timeoutErrorMessage = config.timeoutErrorMessage;
      }
      reject(createError(
        timeoutErrorMessage,
        config,
        transitional.clarifyTimeoutError ? 'ETIMEDOUT' : 'ECONNABORTED',
        request));

      // Clean up request
      request = null;
    };

    // Add xsrf header
    // This is only done if running in a standard browser environment.
    // Specifically not if we're in a web worker, or react-native.
    if (utils.isStandardBrowserEnv()) {
      // Add xsrf header
      var xsrfValue = (config.withCredentials || isURLSameOrigin(fullPath)) && config.xsrfCookieName ?
        cookies.read(config.xsrfCookieName) :
        undefined;

      if (xsrfValue) {
        requestHeaders[config.xsrfHeaderName] = xsrfValue;
      }
    }

    // Add headers to the request
    if ('setRequestHeader' in request) {
      utils.forEach(requestHeaders, function setRequestHeader(val, key) {
        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {
          // Remove Content-Type if data is undefined
          delete requestHeaders[key];
        } else {
          // Otherwise add header to the request
          request.setRequestHeader(key, val);
        }
      });
    }

    // Add withCredentials to request if needed
    if (!utils.isUndefined(config.withCredentials)) {
      request.withCredentials = !!config.withCredentials;
    }

    // Add responseType to request if needed
    if (responseType && responseType !== 'json') {
      request.responseType = config.responseType;
    }

    // Handle progress if needed
    if (typeof config.onDownloadProgress === 'function') {
      request.addEventListener('progress', config.onDownloadProgress);
    }

    // Not all browsers support upload events
    if (typeof config.onUploadProgress === 'function' && request.upload) {
      request.upload.addEventListener('progress', config.onUploadProgress);
    }

    if (config.cancelToken || config.signal) {
      // Handle cancellation
      // eslint-disable-next-line func-names
      onCanceled = function(cancel) {
        if (!request) {
          return;
        }
        reject(!cancel || (cancel && cancel.type) ? new Cancel('canceled') : cancel);
        request.abort();
        request = null;
      };

      config.cancelToken && config.cancelToken.subscribe(onCanceled);
      if (config.signal) {
        config.signal.aborted ? onCanceled() : config.signal.addEventListener('abort', onCanceled);
      }
    }

    if (!requestData) {
      requestData = null;
    }

    // Send the request
    request.send(requestData);
  });
};


/***/ }),

/***/ "./lib/axios.js":
/*!**********************!*\
  !*** ./lib/axios.js ***!
  \**********************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./utils */ "./lib/utils.js");
var bind = __webpack_require__(/*! ./helpers/bind */ "./lib/helpers/bind.js");
var Axios = __webpack_require__(/*! ./core/Axios */ "./lib/core/Axios.js");
var mergeConfig = __webpack_require__(/*! ./core/mergeConfig */ "./lib/core/mergeConfig.js");
var defaults = __webpack_require__(/*! ./defaults */ "./lib/defaults/index.js");

/**
 * Create an instance of Axios
 *
 * @param {Object} defaultConfig The default config for the instance
 * @return {Axios} A new instance of Axios
 */
function createInstance(defaultConfig) {
  var context = new Axios(defaultConfig);
  var instance = bind(Axios.prototype.request, context);

  // Copy axios.prototype to instance
  utils.extend(instance, Axios.prototype, context);

  // Copy context to instance
  utils.extend(instance, context);

  // Factory for creating new instances
  instance.create = function create(instanceConfig) {
    return createInstance(mergeConfig(defaultConfig, instanceConfig));
  };

  return instance;
}

// Create the default instance to be exported
var axios = createInstance(defaults);

// Expose Axios class to allow class inheritance
axios.Axios = Axios;

// Expose Cancel & CancelToken
axios.Cancel = __webpack_require__(/*! ./cancel/Cancel */ "./lib/cancel/Cancel.js");
axios.CancelToken = __webpack_require__(/*! ./cancel/CancelToken */ "./lib/cancel/CancelToken.js");
axios.isCancel = __webpack_require__(/*! ./cancel/isCancel */ "./lib/cancel/isCancel.js");
axios.VERSION = __webpack_require__(/*! ./env/data */ "./lib/env/data.js").version;

// Expose all/spread
axios.all = function all(promises) {
  return Promise.all(promises);
};
axios.spread = __webpack_require__(/*! ./helpers/spread */ "./lib/helpers/spread.js");

// Expose isAxiosError
axios.isAxiosError = __webpack_require__(/*! ./helpers/isAxiosError */ "./lib/helpers/isAxiosError.js");

module.exports = axios;

// Allow use of default import syntax in TypeScript
module.exports.default = axios;


/***/ }),

/***/ "./lib/cancel/Cancel.js":
/*!******************************!*\
  !*** ./lib/cancel/Cancel.js ***!
  \******************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * A `Cancel` is an object that is thrown when an operation is canceled.
 *
 * @class
 * @param {string=} message The message.
 */
function Cancel(message) {
  this.message = message;
}

Cancel.prototype.toString = function toString() {
  return 'Cancel' + (this.message ? ': ' + this.message : '');
};

Cancel.prototype.__CANCEL__ = true;

module.exports = Cancel;


/***/ }),

/***/ "./lib/cancel/CancelToken.js":
/*!***********************************!*\
  !*** ./lib/cancel/CancelToken.js ***!
  \***********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var Cancel = __webpack_require__(/*! ./Cancel */ "./lib/cancel/Cancel.js");

/**
 * A `CancelToken` is an object that can be used to request cancellation of an operation.
 *
 * @class
 * @param {Function} executor The executor function.
 */
function CancelToken(executor) {
  if (typeof executor !== 'function') {
    throw new TypeError('executor must be a function.');
  }

  var resolvePromise;

  this.promise = new Promise(function promiseExecutor(resolve) {
    resolvePromise = resolve;
  });

  var token = this;

  // eslint-disable-next-line func-names
  this.promise.then(function(cancel) {
    if (!token._listeners) return;

    var i;
    var l = token._listeners.length;

    for (i = 0; i < l; i++) {
      token._listeners[i](cancel);
    }
    token._listeners = null;
  });

  // eslint-disable-next-line func-names
  this.promise.then = function(onfulfilled) {
    var _resolve;
    // eslint-disable-next-line func-names
    var promise = new Promise(function(resolve) {
      token.subscribe(resolve);
      _resolve = resolve;
    }).then(onfulfilled);

    promise.cancel = function reject() {
      token.unsubscribe(_resolve);
    };

    return promise;
  };

  executor(function cancel(message) {
    if (token.reason) {
      // Cancellation has already been requested
      return;
    }

    token.reason = new Cancel(message);
    resolvePromise(token.reason);
  });
}

/**
 * Throws a `Cancel` if cancellation has been requested.
 */
CancelToken.prototype.throwIfRequested = function throwIfRequested() {
  if (this.reason) {
    throw this.reason;
  }
};

/**
 * Subscribe to the cancel signal
 */

CancelToken.prototype.subscribe = function subscribe(listener) {
  if (this.reason) {
    listener(this.reason);
    return;
  }

  if (this._listeners) {
    this._listeners.push(listener);
  } else {
    this._listeners = [listener];
  }
};

/**
 * Unsubscribe from the cancel signal
 */

CancelToken.prototype.unsubscribe = function unsubscribe(listener) {
  if (!this._listeners) {
    return;
  }
  var index = this._listeners.indexOf(listener);
  if (index !== -1) {
    this._listeners.splice(index, 1);
  }
};

/**
 * Returns an object that contains a new `CancelToken` and a function that, when called,
 * cancels the `CancelToken`.
 */
CancelToken.source = function source() {
  var cancel;
  var token = new CancelToken(function executor(c) {
    cancel = c;
  });
  return {
    token: token,
    cancel: cancel
  };
};

module.exports = CancelToken;


/***/ }),

/***/ "./lib/cancel/isCancel.js":
/*!********************************!*\
  !*** ./lib/cancel/isCancel.js ***!
  \********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


module.exports = function isCancel(value) {
  return !!(value && value.__CANCEL__);
};


/***/ }),

/***/ "./lib/core/Axios.js":
/*!***************************!*\
  !*** ./lib/core/Axios.js ***!
  \***************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");
var buildURL = __webpack_require__(/*! ../helpers/buildURL */ "./lib/helpers/buildURL.js");
var InterceptorManager = __webpack_require__(/*! ./InterceptorManager */ "./lib/core/InterceptorManager.js");
var dispatchRequest = __webpack_require__(/*! ./dispatchRequest */ "./lib/core/dispatchRequest.js");
var mergeConfig = __webpack_require__(/*! ./mergeConfig */ "./lib/core/mergeConfig.js");
var validator = __webpack_require__(/*! ../helpers/validator */ "./lib/helpers/validator.js");

var validators = validator.validators;
/**
 * Create a new instance of Axios
 *
 * @param {Object} instanceConfig The default config for the instance
 */
function Axios(instanceConfig) {
  this.defaults = instanceConfig;
  this.interceptors = {
    request: new InterceptorManager(),
    response: new InterceptorManager()
  };
}

/**
 * Dispatch a request
 *
 * @param {Object} config The config specific for this request (merged with this.defaults)
 */
Axios.prototype.request = function request(configOrUrl, config) {
  /*eslint no-param-reassign:0*/
  // Allow for axios('example/url'[, config]) a la fetch API
  if (typeof configOrUrl === 'string') {
    config = config || {};
    config.url = configOrUrl;
  } else {
    config = configOrUrl || {};
  }

  config = mergeConfig(this.defaults, config);

  // Set config.method
  if (config.method) {
    config.method = config.method.toLowerCase();
  } else if (this.defaults.method) {
    config.method = this.defaults.method.toLowerCase();
  } else {
    config.method = 'get';
  }

  var transitional = config.transitional;

  if (transitional !== undefined) {
    validator.assertOptions(transitional, {
      silentJSONParsing: validators.transitional(validators.boolean),
      forcedJSONParsing: validators.transitional(validators.boolean),
      clarifyTimeoutError: validators.transitional(validators.boolean)
    }, false);
  }

  // filter out skipped interceptors
  var requestInterceptorChain = [];
  var synchronousRequestInterceptors = true;
  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
    if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
      return;
    }

    synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;

    requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
  });

  var responseInterceptorChain = [];
  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
    responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
  });

  var promise;

  if (!synchronousRequestInterceptors) {
    var chain = [dispatchRequest, undefined];

    Array.prototype.unshift.apply(chain, requestInterceptorChain);
    chain = chain.concat(responseInterceptorChain);

    promise = Promise.resolve(config);
    while (chain.length) {
      promise = promise.then(chain.shift(), chain.shift());
    }

    return promise;
  }


  var newConfig = config;
  while (requestInterceptorChain.length) {
    var onFulfilled = requestInterceptorChain.shift();
    var onRejected = requestInterceptorChain.shift();
    try {
      newConfig = onFulfilled(newConfig);
    } catch (error) {
      onRejected(error);
      break;
    }
  }

  try {
    promise = dispatchRequest(newConfig);
  } catch (error) {
    return Promise.reject(error);
  }

  while (responseInterceptorChain.length) {
    promise = promise.then(responseInterceptorChain.shift(), responseInterceptorChain.shift());
  }

  return promise;
};

Axios.prototype.getUri = function getUri(config) {
  config = mergeConfig(this.defaults, config);
  return buildURL(config.url, config.params, config.paramsSerializer).replace(/^\?/, '');
};

// Provide aliases for supported request methods
utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
  /*eslint func-names:0*/
  Axios.prototype[method] = function(url, config) {
    return this.request(mergeConfig(config || {}, {
      method: method,
      url: url,
      data: (config || {}).data
    }));
  };
});

utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
  /*eslint func-names:0*/
  Axios.prototype[method] = function(url, data, config) {
    return this.request(mergeConfig(config || {}, {
      method: method,
      url: url,
      data: data
    }));
  };
});

module.exports = Axios;


/***/ }),

/***/ "./lib/core/InterceptorManager.js":
/*!****************************************!*\
  !*** ./lib/core/InterceptorManager.js ***!
  \****************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");

function InterceptorManager() {
  this.handlers = [];
}

/**
 * Add a new interceptor to the stack
 *
 * @param {Function} fulfilled The function to handle `then` for a `Promise`
 * @param {Function} rejected The function to handle `reject` for a `Promise`
 *
 * @return {Number} An ID used to remove interceptor later
 */
InterceptorManager.prototype.use = function use(fulfilled, rejected, options) {
  this.handlers.push({
    fulfilled: fulfilled,
    rejected: rejected,
    synchronous: options ? options.synchronous : false,
    runWhen: options ? options.runWhen : null
  });
  return this.handlers.length - 1;
};

/**
 * Remove an interceptor from the stack
 *
 * @param {Number} id The ID that was returned by `use`
 */
InterceptorManager.prototype.eject = function eject(id) {
  if (this.handlers[id]) {
    this.handlers[id] = null;
  }
};

/**
 * Iterate over all the registered interceptors
 *
 * This method is particularly useful for skipping over any
 * interceptors that may have become `null` calling `eject`.
 *
 * @param {Function} fn The function to call for each interceptor
 */
InterceptorManager.prototype.forEach = function forEach(fn) {
  utils.forEach(this.handlers, function forEachHandler(h) {
    if (h !== null) {
      fn(h);
    }
  });
};

module.exports = InterceptorManager;


/***/ }),

/***/ "./lib/core/buildFullPath.js":
/*!***********************************!*\
  !*** ./lib/core/buildFullPath.js ***!
  \***********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var isAbsoluteURL = __webpack_require__(/*! ../helpers/isAbsoluteURL */ "./lib/helpers/isAbsoluteURL.js");
var combineURLs = __webpack_require__(/*! ../helpers/combineURLs */ "./lib/helpers/combineURLs.js");

/**
 * Creates a new URL by combining the baseURL with the requestedURL,
 * only when the requestedURL is not already an absolute URL.
 * If the requestURL is absolute, this function returns the requestedURL untouched.
 *
 * @param {string} baseURL The base URL
 * @param {string} requestedURL Absolute or relative URL to combine
 * @returns {string} The combined full path
 */
module.exports = function buildFullPath(baseURL, requestedURL) {
  if (baseURL && !isAbsoluteURL(requestedURL)) {
    return combineURLs(baseURL, requestedURL);
  }
  return requestedURL;
};


/***/ }),

/***/ "./lib/core/createError.js":
/*!*********************************!*\
  !*** ./lib/core/createError.js ***!
  \*********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var enhanceError = __webpack_require__(/*! ./enhanceError */ "./lib/core/enhanceError.js");

/**
 * Create an Error with the specified message, config, error code, request and response.
 *
 * @param {string} message The error message.
 * @param {Object} config The config.
 * @param {string} [code] The error code (for example, 'ECONNABORTED').
 * @param {Object} [request] The request.
 * @param {Object} [response] The response.
 * @returns {Error} The created error.
 */
module.exports = function createError(message, config, code, request, response) {
  var error = new Error(message);
  return enhanceError(error, config, code, request, response);
};


/***/ }),

/***/ "./lib/core/dispatchRequest.js":
/*!*************************************!*\
  !*** ./lib/core/dispatchRequest.js ***!
  \*************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");
var transformData = __webpack_require__(/*! ./transformData */ "./lib/core/transformData.js");
var isCancel = __webpack_require__(/*! ../cancel/isCancel */ "./lib/cancel/isCancel.js");
var defaults = __webpack_require__(/*! ../defaults */ "./lib/defaults/index.js");
var Cancel = __webpack_require__(/*! ../cancel/Cancel */ "./lib/cancel/Cancel.js");

/**
 * Throws a `Cancel` if cancellation has been requested.
 */
function throwIfCancellationRequested(config) {
  if (config.cancelToken) {
    config.cancelToken.throwIfRequested();
  }

  if (config.signal && config.signal.aborted) {
    throw new Cancel('canceled');
  }
}

/**
 * Dispatch a request to the server using the configured adapter.
 *
 * @param {object} config The config that is to be used for the request
 * @returns {Promise} The Promise to be fulfilled
 */
module.exports = function dispatchRequest(config) {
  throwIfCancellationRequested(config);

  // Ensure headers exist
  config.headers = config.headers || {};

  // Transform request data
  config.data = transformData.call(
    config,
    config.data,
    config.headers,
    config.transformRequest
  );

  // Flatten headers
  config.headers = utils.merge(
    config.headers.common || {},
    config.headers[config.method] || {},
    config.headers
  );

  utils.forEach(
    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
    function cleanHeaderConfig(method) {
      delete config.headers[method];
    }
  );

  var adapter = config.adapter || defaults.adapter;

  return adapter(config).then(function onAdapterResolution(response) {
    throwIfCancellationRequested(config);

    // Transform response data
    response.data = transformData.call(
      config,
      response.data,
      response.headers,
      config.transformResponse
    );

    return response;
  }, function onAdapterRejection(reason) {
    if (!isCancel(reason)) {
      throwIfCancellationRequested(config);

      // Transform response data
      if (reason && reason.response) {
        reason.response.data = transformData.call(
          config,
          reason.response.data,
          reason.response.headers,
          config.transformResponse
        );
      }
    }

    return Promise.reject(reason);
  });
};


/***/ }),

/***/ "./lib/core/enhanceError.js":
/*!**********************************!*\
  !*** ./lib/core/enhanceError.js ***!
  \**********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * Update an Error with the specified config, error code, and response.
 *
 * @param {Error} error The error to update.
 * @param {Object} config The config.
 * @param {string} [code] The error code (for example, 'ECONNABORTED').
 * @param {Object} [request] The request.
 * @param {Object} [response] The response.
 * @returns {Error} The error.
 */
module.exports = function enhanceError(error, config, code, request, response) {
  error.config = config;
  if (code) {
    error.code = code;
  }

  error.request = request;
  error.response = response;
  error.isAxiosError = true;

  error.toJSON = function toJSON() {
    return {
      // Standard
      message: this.message,
      name: this.name,
      // Microsoft
      description: this.description,
      number: this.number,
      // Mozilla
      fileName: this.fileName,
      lineNumber: this.lineNumber,
      columnNumber: this.columnNumber,
      stack: this.stack,
      // Axios
      config: this.config,
      code: this.code,
      status: this.response && this.response.status ? this.response.status : null
    };
  };
  return error;
};


/***/ }),

/***/ "./lib/core/mergeConfig.js":
/*!*********************************!*\
  !*** ./lib/core/mergeConfig.js ***!
  \*********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ../utils */ "./lib/utils.js");

/**
 * Config-specific merge-function which creates a new config-object
 * by merging two configuration objects together.
 *
 * @param {Object} config1
 * @param {Object} config2
 * @returns {Object} New object resulting from merging config2 to config1
 */
module.exports = function mergeConfig(config1, config2) {
  // eslint-disable-next-line no-param-reassign
  config2 = config2 || {};
  var config = {};

  function getMergedValue(target, source) {
    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {
      return utils.merge(target, source);
    } else if (utils.isPlainObject(source)) {
      return utils.merge({}, source);
    } else if (utils.isArray(source)) {
      return source.slice();
    }
    return source;
  }

  // eslint-disable-next-line consistent-return
  function mergeDeepProperties(prop) {
    if (!utils.isUndefined(config2[prop])) {
      return getMergedValue(config1[prop], config2[prop]);
    } else if (!utils.isUndefined(config1[prop])) {
      return getMergedValue(undefined, config1[prop]);
    }
  }

  // eslint-disable-next-line consistent-return
  function valueFromConfig2(prop) {
    if (!utils.isUndefined(config2[prop])) {
      return getMergedValue(undefined, config2[prop]);
    }
  }

  // eslint-disable-next-line consistent-return
  function defaultToConfig2(prop) {
    if (!utils.isUndefined(config2[prop])) {
      return getMergedValue(undefined, config2[prop]);
    } else if (!utils.isUndefined(config1[prop])) {
      return getMergedValue(undefined, config1[prop]);
    }
  }

  // eslint-disable-next-line consistent-return
  function mergeDirectKeys(prop) {
    if (prop in config2) {
      return getMergedValue(config1[prop], config2[prop]);
    } else if (prop in config1) {
      return getMergedValue(undefined, config1[prop]);
    }
  }

  var mergeMap = {
    'url': valueFromConfig2,
    'method': valueFromConfig2,
    'data': valueFromConfig2,
    'baseURL': defaultToConfig2,
    'transformRequest': defaultToConfig2,
    'transformResponse': defaultToConfig2,
    'paramsSerializer': defaultToConfig2,
    'timeout': defaultToConfig2,
    'timeoutMessage': defaultToConfig2,
    'withCredentials': defaultToConfig2,
    'adapter': defaultToConfig2,
    'responseType': defaultToConfig2,
    'xsrfCookieName': defaultToConfig2,
    'xsrfHeaderName': defaultToConfig2,
    'onUploadProgress': defaultToConfig2,
    'onDownloadProgress': defaultToConfig2,
    'decompress': defaultToConfig2,
    'maxContentLength': defaultToConfig2,
    'maxBodyLength': defaultToConfig2,
    'transport': defaultToConfig2,
    'httpAgent': defaultToConfig2,
    'httpsAgent': defaultToConfig2,
    'cancelToken': defaultToConfig2,
    'socketPath': defaultToConfig2,
    'responseEncoding': defaultToConfig2,
    'validateStatus': mergeDirectKeys
  };

  utils.forEach(Object.keys(config1).concat(Object.keys(config2)), function computeConfigValue(prop) {
    var merge = mergeMap[prop] || mergeDeepProperties;
    var configValue = merge(prop);
    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);
  });

  return config;
};


/***/ }),

/***/ "./lib/core/settle.js":
/*!****************************!*\
  !*** ./lib/core/settle.js ***!
  \****************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var createError = __webpack_require__(/*! ./createError */ "./lib/core/createError.js");

/**
 * Resolve or reject a Promise based on response status.
 *
 * @param {Function} resolve A function that resolves the promise.
 * @param {Function} reject A function that rejects the promise.
 * @param {object} response The response.
 */
module.exports = function settle(resolve, reject, response) {
  var validateStatus = response.config.validateStatus;
  if (!response.status || !validateStatus || validateStatus(response.status)) {
    resolve(response);
  } else {
    reject(createError(
      'Request failed with status code ' + response.status,
      response.config,
      null,
      response.request,
      response
    ));
  }
};


/***/ }),

/***/ "./lib/core/transformData.js":
/*!***********************************!*\
  !*** ./lib/core/transformData.js ***!
  \***********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");
var defaults = __webpack_require__(/*! ../defaults */ "./lib/defaults/index.js");

/**
 * Transform the data for a request or a response
 *
 * @param {Object|String} data The data to be transformed
 * @param {Array} headers The headers for the request or response
 * @param {Array|Function} fns A single function or Array of functions
 * @returns {*} The resulting transformed data
 */
module.exports = function transformData(data, headers, fns) {
  var context = this || defaults;
  /*eslint no-param-reassign:0*/
  utils.forEach(fns, function transform(fn) {
    data = fn.call(context, data, headers);
  });

  return data;
};


/***/ }),

/***/ "./lib/defaults/index.js":
/*!*******************************!*\
  !*** ./lib/defaults/index.js ***!
  \*******************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ../utils */ "./lib/utils.js");
var normalizeHeaderName = __webpack_require__(/*! ../helpers/normalizeHeaderName */ "./lib/helpers/normalizeHeaderName.js");
var enhanceError = __webpack_require__(/*! ../core/enhanceError */ "./lib/core/enhanceError.js");
var transitionalDefaults = __webpack_require__(/*! ./transitional */ "./lib/defaults/transitional.js");

var DEFAULT_CONTENT_TYPE = {
  'Content-Type': 'application/x-www-form-urlencoded'
};

function setContentTypeIfUnset(headers, value) {
  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {
    headers['Content-Type'] = value;
  }
}

function getDefaultAdapter() {
  var adapter;
  if (typeof XMLHttpRequest !== 'undefined') {
    // For browsers use XHR adapter
    adapter = __webpack_require__(/*! ../adapters/xhr */ "./lib/adapters/xhr.js");
  } else if (typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]') {
    // For node use HTTP adapter
    adapter = __webpack_require__(/*! ../adapters/http */ "./lib/adapters/xhr.js");
  }
  return adapter;
}

function stringifySafely(rawValue, parser, encoder) {
  if (utils.isString(rawValue)) {
    try {
      (parser || JSON.parse)(rawValue);
      return utils.trim(rawValue);
    } catch (e) {
      if (e.name !== 'SyntaxError') {
        throw e;
      }
    }
  }

  return (encoder || JSON.stringify)(rawValue);
}

var defaults = {

  transitional: transitionalDefaults,

  adapter: getDefaultAdapter(),

  transformRequest: [function transformRequest(data, headers) {
    normalizeHeaderName(headers, 'Accept');
    normalizeHeaderName(headers, 'Content-Type');

    if (utils.isFormData(data) ||
      utils.isArrayBuffer(data) ||
      utils.isBuffer(data) ||
      utils.isStream(data) ||
      utils.isFile(data) ||
      utils.isBlob(data)
    ) {
      return data;
    }
    if (utils.isArrayBufferView(data)) {
      return data.buffer;
    }
    if (utils.isURLSearchParams(data)) {
      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');
      return data.toString();
    }
    if (utils.isObject(data) || (headers && headers['Content-Type'] === 'application/json')) {
      setContentTypeIfUnset(headers, 'application/json');
      return stringifySafely(data);
    }
    return data;
  }],

  transformResponse: [function transformResponse(data) {
    var transitional = this.transitional || defaults.transitional;
    var silentJSONParsing = transitional && transitional.silentJSONParsing;
    var forcedJSONParsing = transitional && transitional.forcedJSONParsing;
    var strictJSONParsing = !silentJSONParsing && this.responseType === 'json';

    if (strictJSONParsing || (forcedJSONParsing && utils.isString(data) && data.length)) {
      try {
        return JSON.parse(data);
      } catch (e) {
        if (strictJSONParsing) {
          if (e.name === 'SyntaxError') {
            throw enhanceError(e, this, 'E_JSON_PARSE');
          }
          throw e;
        }
      }
    }

    return data;
  }],

  /**
   * A timeout in milliseconds to abort a request. If set to 0 (default) a
   * timeout is not created.
   */
  timeout: 0,

  xsrfCookieName: 'XSRF-TOKEN',
  xsrfHeaderName: 'X-XSRF-TOKEN',

  maxContentLength: -1,
  maxBodyLength: -1,

  validateStatus: function validateStatus(status) {
    return status >= 200 && status < 300;
  },

  headers: {
    common: {
      'Accept': 'application/json, text/plain, */*'
    }
  }
};

utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
  defaults.headers[method] = {};
});

utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
});

module.exports = defaults;


/***/ }),

/***/ "./lib/defaults/transitional.js":
/*!**************************************!*\
  !*** ./lib/defaults/transitional.js ***!
  \**************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


module.exports = {
  silentJSONParsing: true,
  forcedJSONParsing: true,
  clarifyTimeoutError: false
};


/***/ }),

/***/ "./lib/env/data.js":
/*!*************************!*\
  !*** ./lib/env/data.js ***!
  \*************************/
/*! no static exports found */
/***/ (function(module, exports) {

module.exports = {
  "version": "0.26.1"
};

/***/ }),

/***/ "./lib/helpers/bind.js":
/*!*****************************!*\
  !*** ./lib/helpers/bind.js ***!
  \*****************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


module.exports = function bind(fn, thisArg) {
  return function wrap() {
    var args = new Array(arguments.length);
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i];
    }
    return fn.apply(thisArg, args);
  };
};


/***/ }),

/***/ "./lib/helpers/buildURL.js":
/*!*********************************!*\
  !*** ./lib/helpers/buildURL.js ***!
  \*********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");

function encode(val) {
  return encodeURIComponent(val).
    replace(/%3A/gi, ':').
    replace(/%24/g, '$').
    replace(/%2C/gi, ',').
    replace(/%20/g, '+').
    replace(/%5B/gi, '[').
    replace(/%5D/gi, ']');
}

/**
 * Build a URL by appending params to the end
 *
 * @param {string} url The base of the url (e.g., http://www.google.com)
 * @param {object} [params] The params to be appended
 * @returns {string} The formatted url
 */
module.exports = function buildURL(url, params, paramsSerializer) {
  /*eslint no-param-reassign:0*/
  if (!params) {
    return url;
  }

  var serializedParams;
  if (paramsSerializer) {
    serializedParams = paramsSerializer(params);
  } else if (utils.isURLSearchParams(params)) {
    serializedParams = params.toString();
  } else {
    var parts = [];

    utils.forEach(params, function serialize(val, key) {
      if (val === null || typeof val === 'undefined') {
        return;
      }

      if (utils.isArray(val)) {
        key = key + '[]';
      } else {
        val = [val];
      }

      utils.forEach(val, function parseValue(v) {
        if (utils.isDate(v)) {
          v = v.toISOString();
        } else if (utils.isObject(v)) {
          v = JSON.stringify(v);
        }
        parts.push(encode(key) + '=' + encode(v));
      });
    });

    serializedParams = parts.join('&');
  }

  if (serializedParams) {
    var hashmarkIndex = url.indexOf('#');
    if (hashmarkIndex !== -1) {
      url = url.slice(0, hashmarkIndex);
    }

    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
  }

  return url;
};


/***/ }),

/***/ "./lib/helpers/combineURLs.js":
/*!************************************!*\
  !*** ./lib/helpers/combineURLs.js ***!
  \************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * Creates a new URL by combining the specified URLs
 *
 * @param {string} baseURL The base URL
 * @param {string} relativeURL The relative URL
 * @returns {string} The combined URL
 */
module.exports = function combineURLs(baseURL, relativeURL) {
  return relativeURL
    ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '')
    : baseURL;
};


/***/ }),

/***/ "./lib/helpers/cookies.js":
/*!********************************!*\
  !*** ./lib/helpers/cookies.js ***!
  \********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");

module.exports = (
  utils.isStandardBrowserEnv() ?

  // Standard browser envs support document.cookie
    (function standardBrowserEnv() {
      return {
        write: function write(name, value, expires, path, domain, secure) {
          var cookie = [];
          cookie.push(name + '=' + encodeURIComponent(value));

          if (utils.isNumber(expires)) {
            cookie.push('expires=' + new Date(expires).toGMTString());
          }

          if (utils.isString(path)) {
            cookie.push('path=' + path);
          }

          if (utils.isString(domain)) {
            cookie.push('domain=' + domain);
          }

          if (secure === true) {
            cookie.push('secure');
          }

          document.cookie = cookie.join('; ');
        },

        read: function read(name) {
          var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
          return (match ? decodeURIComponent(match[3]) : null);
        },

        remove: function remove(name) {
          this.write(name, '', Date.now() - 86400000);
        }
      };
    })() :

  // Non standard browser env (web workers, react-native) lack needed support.
    (function nonStandardBrowserEnv() {
      return {
        write: function write() {},
        read: function read() { return null; },
        remove: function remove() {}
      };
    })()
);


/***/ }),

/***/ "./lib/helpers/isAbsoluteURL.js":
/*!**************************************!*\
  !*** ./lib/helpers/isAbsoluteURL.js ***!
  \**************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * Determines whether the specified URL is absolute
 *
 * @param {string} url The URL to test
 * @returns {boolean} True if the specified URL is absolute, otherwise false
 */
module.exports = function isAbsoluteURL(url) {
  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
  // by any combination of letters, digits, plus, period, or hyphen.
  return /^([a-z][a-z\d+\-.]*:)?\/\//i.test(url);
};


/***/ }),

/***/ "./lib/helpers/isAxiosError.js":
/*!*************************************!*\
  !*** ./lib/helpers/isAxiosError.js ***!
  \*************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");

/**
 * Determines whether the payload is an error thrown by Axios
 *
 * @param {*} payload The value to test
 * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
 */
module.exports = function isAxiosError(payload) {
  return utils.isObject(payload) && (payload.isAxiosError === true);
};


/***/ }),

/***/ "./lib/helpers/isURLSameOrigin.js":
/*!****************************************!*\
  !*** ./lib/helpers/isURLSameOrigin.js ***!
  \****************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");

module.exports = (
  utils.isStandardBrowserEnv() ?

  // Standard browser envs have full support of the APIs needed to test
  // whether the request URL is of the same origin as current location.
    (function standardBrowserEnv() {
      var msie = /(msie|trident)/i.test(navigator.userAgent);
      var urlParsingNode = document.createElement('a');
      var originURL;

      /**
    * Parse a URL to discover it's components
    *
    * @param {String} url The URL to be parsed
    * @returns {Object}
    */
      function resolveURL(url) {
        var href = url;

        if (msie) {
        // IE needs attribute set twice to normalize properties
          urlParsingNode.setAttribute('href', href);
          href = urlParsingNode.href;
        }

        urlParsingNode.setAttribute('href', href);

        // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
        return {
          href: urlParsingNode.href,
          protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
          host: urlParsingNode.host,
          search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
          hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
          hostname: urlParsingNode.hostname,
          port: urlParsingNode.port,
          pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
            urlParsingNode.pathname :
            '/' + urlParsingNode.pathname
        };
      }

      originURL = resolveURL(window.location.href);

      /**
    * Determine if a URL shares the same origin as the current location
    *
    * @param {String} requestURL The URL to test
    * @returns {boolean} True if URL shares the same origin, otherwise false
    */
      return function isURLSameOrigin(requestURL) {
        var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
        return (parsed.protocol === originURL.protocol &&
            parsed.host === originURL.host);
      };
    })() :

  // Non standard browser envs (web workers, react-native) lack needed support.
    (function nonStandardBrowserEnv() {
      return function isURLSameOrigin() {
        return true;
      };
    })()
);


/***/ }),

/***/ "./lib/helpers/normalizeHeaderName.js":
/*!********************************************!*\
  !*** ./lib/helpers/normalizeHeaderName.js ***!
  \********************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ../utils */ "./lib/utils.js");

module.exports = function normalizeHeaderName(headers, normalizedName) {
  utils.forEach(headers, function processHeader(value, name) {
    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {
      headers[normalizedName] = value;
      delete headers[name];
    }
  });
};


/***/ }),

/***/ "./lib/helpers/parseHeaders.js":
/*!*************************************!*\
  !*** ./lib/helpers/parseHeaders.js ***!
  \*************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var utils = __webpack_require__(/*! ./../utils */ "./lib/utils.js");

// Headers whose duplicates are ignored by node
// c.f. https://nodejs.org/api/http.html#http_message_headers
var ignoreDuplicateOf = [
  'age', 'authorization', 'content-length', 'content-type', 'etag',
  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
  'referer', 'retry-after', 'user-agent'
];

/**
 * Parse headers into an object
 *
 * ```
 * Date: Wed, 27 Aug 2014 08:58:49 GMT
 * Content-Type: application/json
 * Connection: keep-alive
 * Transfer-Encoding: chunked
 * ```
 *
 * @param {String} headers Headers needing to be parsed
 * @returns {Object} Headers parsed into an object
 */
module.exports = function parseHeaders(headers) {
  var parsed = {};
  var key;
  var val;
  var i;

  if (!headers) { return parsed; }

  utils.forEach(headers.split('\n'), function parser(line) {
    i = line.indexOf(':');
    key = utils.trim(line.substr(0, i)).toLowerCase();
    val = utils.trim(line.substr(i + 1));

    if (key) {
      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {
        return;
      }
      if (key === 'set-cookie') {
        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);
      } else {
        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
      }
    }
  });

  return parsed;
};


/***/ }),

/***/ "./lib/helpers/spread.js":
/*!*******************************!*\
  !*** ./lib/helpers/spread.js ***!
  \*******************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * Syntactic sugar for invoking a function and expanding an array for arguments.
 *
 * Common use case would be to use `Function.prototype.apply`.
 *
 *  ```js
 *  function f(x, y, z) {}
 *  var args = [1, 2, 3];
 *  f.apply(null, args);
 *  ```
 *
 * With `spread` this example can be re-written.
 *
 *  ```js
 *  spread(function(x, y, z) {})([1, 2, 3]);
 *  ```
 *
 * @param {Function} callback
 * @returns {Function}
 */
module.exports = function spread(callback) {
  return function wrap(arr) {
    return callback.apply(null, arr);
  };
};


/***/ }),

/***/ "./lib/helpers/validator.js":
/*!**********************************!*\
  !*** ./lib/helpers/validator.js ***!
  \**********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var VERSION = __webpack_require__(/*! ../env/data */ "./lib/env/data.js").version;

var validators = {};

// eslint-disable-next-line func-names
['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach(function(type, i) {
  validators[type] = function validator(thing) {
    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
  };
});

var deprecatedWarnings = {};

/**
 * Transitional option validator
 * @param {function|boolean?} validator - set to false if the transitional option has been removed
 * @param {string?} version - deprecated version / removed since version
 * @param {string?} message - some message with additional info
 * @returns {function}
 */
validators.transitional = function transitional(validator, version, message) {
  function formatMessage(opt, desc) {
    return '[Axios v' + VERSION + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
  }

  // eslint-disable-next-line func-names
  return function(value, opt, opts) {
    if (validator === false) {
      throw new Error(formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')));
    }

    if (version && !deprecatedWarnings[opt]) {
      deprecatedWarnings[opt] = true;
      // eslint-disable-next-line no-console
      console.warn(
        formatMessage(
          opt,
          ' has been deprecated since v' + version + ' and will be removed in the near future'
        )
      );
    }

    return validator ? validator(value, opt, opts) : true;
  };
};

/**
 * Assert object's properties type
 * @param {object} options
 * @param {object} schema
 * @param {boolean?} allowUnknown
 */

function assertOptions(options, schema, allowUnknown) {
  if (typeof options !== 'object') {
    throw new TypeError('options must be an object');
  }
  var keys = Object.keys(options);
  var i = keys.length;
  while (i-- > 0) {
    var opt = keys[i];
    var validator = schema[opt];
    if (validator) {
      var value = options[opt];
      var result = value === undefined || validator(value, opt, options);
      if (result !== true) {
        throw new TypeError('option ' + opt + ' must be ' + result);
      }
      continue;
    }
    if (allowUnknown !== true) {
      throw Error('Unknown option ' + opt);
    }
  }
}

module.exports = {
  assertOptions: assertOptions,
  validators: validators
};


/***/ }),

/***/ "./lib/utils.js":
/*!**********************!*\
  !*** ./lib/utils.js ***!
  \**********************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var bind = __webpack_require__(/*! ./helpers/bind */ "./lib/helpers/bind.js");

// utils is a library of generic helper functions non-specific to axios

var toString = Object.prototype.toString;

/**
 * Determine if a value is an Array
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is an Array, otherwise false
 */
function isArray(val) {
  return Array.isArray(val);
}

/**
 * Determine if a value is undefined
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if the value is undefined, otherwise false
 */
function isUndefined(val) {
  return typeof val === 'undefined';
}

/**
 * Determine if a value is a Buffer
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a Buffer, otherwise false
 */
function isBuffer(val) {
  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)
    && typeof val.constructor.isBuffer === 'function' && val.constructor.isBuffer(val);
}

/**
 * Determine if a value is an ArrayBuffer
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is an ArrayBuffer, otherwise false
 */
function isArrayBuffer(val) {
  return toString.call(val) === '[object ArrayBuffer]';
}

/**
 * Determine if a value is a FormData
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is an FormData, otherwise false
 */
function isFormData(val) {
  return toString.call(val) === '[object FormData]';
}

/**
 * Determine if a value is a view on an ArrayBuffer
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
 */
function isArrayBufferView(val) {
  var result;
  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
    result = ArrayBuffer.isView(val);
  } else {
    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));
  }
  return result;
}

/**
 * Determine if a value is a String
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a String, otherwise false
 */
function isString(val) {
  return typeof val === 'string';
}

/**
 * Determine if a value is a Number
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a Number, otherwise false
 */
function isNumber(val) {
  return typeof val === 'number';
}

/**
 * Determine if a value is an Object
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is an Object, otherwise false
 */
function isObject(val) {
  return val !== null && typeof val === 'object';
}

/**
 * Determine if a value is a plain Object
 *
 * @param {Object} val The value to test
 * @return {boolean} True if value is a plain Object, otherwise false
 */
function isPlainObject(val) {
  if (toString.call(val) !== '[object Object]') {
    return false;
  }

  var prototype = Object.getPrototypeOf(val);
  return prototype === null || prototype === Object.prototype;
}

/**
 * Determine if a value is a Date
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a Date, otherwise false
 */
function isDate(val) {
  return toString.call(val) === '[object Date]';
}

/**
 * Determine if a value is a File
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a File, otherwise false
 */
function isFile(val) {
  return toString.call(val) === '[object File]';
}

/**
 * Determine if a value is a Blob
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a Blob, otherwise false
 */
function isBlob(val) {
  return toString.call(val) === '[object Blob]';
}

/**
 * Determine if a value is a Function
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a Function, otherwise false
 */
function isFunction(val) {
  return toString.call(val) === '[object Function]';
}

/**
 * Determine if a value is a Stream
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a Stream, otherwise false
 */
function isStream(val) {
  return isObject(val) && isFunction(val.pipe);
}

/**
 * Determine if a value is a URLSearchParams object
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a URLSearchParams object, otherwise false
 */
function isURLSearchParams(val) {
  return toString.call(val) === '[object URLSearchParams]';
}

/**
 * Trim excess whitespace off the beginning and end of a string
 *
 * @param {String} str The String to trim
 * @returns {String} The String freed of excess whitespace
 */
function trim(str) {
  return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
}

/**
 * Determine if we're running in a standard browser environment
 *
 * This allows axios to run in a web worker, and react-native.
 * Both environments support XMLHttpRequest, but not fully standard globals.
 *
 * web workers:
 *  typeof window -> undefined
 *  typeof document -> undefined
 *
 * react-native:
 *  navigator.product -> 'ReactNative'
 * nativescript
 *  navigator.product -> 'NativeScript' or 'NS'
 */
function isStandardBrowserEnv() {
  if (typeof navigator !== 'undefined' && (navigator.product === 'ReactNative' ||
                                           navigator.product === 'NativeScript' ||
                                           navigator.product === 'NS')) {
    return false;
  }
  return (
    typeof window !== 'undefined' &&
    typeof document !== 'undefined'
  );
}

/**
 * Iterate over an Array or an Object invoking a function for each item.
 *
 * If `obj` is an Array callback will be called passing
 * the value, index, and complete array for each item.
 *
 * If 'obj' is an Object callback will be called passing
 * the value, key, and complete object for each property.
 *
 * @param {Object|Array} obj The object to iterate
 * @param {Function} fn The callback to invoke for each item
 */
function forEach(obj, fn) {
  // Don't bother if no value provided
  if (obj === null || typeof obj === 'undefined') {
    return;
  }

  // Force an array if not already something iterable
  if (typeof obj !== 'object') {
    /*eslint no-param-reassign:0*/
    obj = [obj];
  }

  if (isArray(obj)) {
    // Iterate over array values
    for (var i = 0, l = obj.length; i < l; i++) {
      fn.call(null, obj[i], i, obj);
    }
  } else {
    // Iterate over object keys
    for (var key in obj) {
      if (Object.prototype.hasOwnProperty.call(obj, key)) {
        fn.call(null, obj[key], key, obj);
      }
    }
  }
}

/**
 * Accepts varargs expecting each argument to be an object, then
 * immutably merges the properties of each object and returns result.
 *
 * When multiple objects contain the same key the later object in
 * the arguments list will take precedence.
 *
 * Example:
 *
 * ```js
 * var result = merge({foo: 123}, {foo: 456});
 * console.log(result.foo); // outputs 456
 * ```
 *
 * @param {Object} obj1 Object to merge
 * @returns {Object} Result of all merge properties
 */
function merge(/* obj1, obj2, obj3, ... */) {
  var result = {};
  function assignValue(val, key) {
    if (isPlainObject(result[key]) && isPlainObject(val)) {
      result[key] = merge(result[key], val);
    } else if (isPlainObject(val)) {
      result[key] = merge({}, val);
    } else if (isArray(val)) {
      result[key] = val.slice();
    } else {
      result[key] = val;
    }
  }

  for (var i = 0, l = arguments.length; i < l; i++) {
    forEach(arguments[i], assignValue);
  }
  return result;
}

/**
 * Extends object a by mutably adding to it the properties of object b.
 *
 * @param {Object} a The object to be extended
 * @param {Object} b The object to copy properties from
 * @param {Object} thisArg The object to bind function to
 * @return {Object} The resulting value of object a
 */
function extend(a, b, thisArg) {
  forEach(b, function assignValue(val, key) {
    if (thisArg && typeof val === 'function') {
      a[key] = bind(val, thisArg);
    } else {
      a[key] = val;
    }
  });
  return a;
}

/**
 * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
 *
 * @param {string} content with BOM
 * @return {string} content value without BOM
 */
function stripBOM(content) {
  if (content.charCodeAt(0) === 0xFEFF) {
    content = content.slice(1);
  }
  return content;
}

module.exports = {
  isArray: isArray,
  isArrayBuffer: isArrayBuffer,
  isBuffer: isBuffer,
  isFormData: isFormData,
  isArrayBufferView: isArrayBufferView,
  isString: isString,
  isNumber: isNumber,
  isObject: isObject,
  isPlainObject: isPlainObject,
  isUndefined: isUndefined,
  isDate: isDate,
  isFile: isFile,
  isBlob: isBlob,
  isFunction: isFunction,
  isStream: isStream,
  isURLSearchParams: isURLSearchParams,
  isStandardBrowserEnv: isStandardBrowserEnv,
  forEach: forEach,
  merge: merge,
  extend: extend,
  trim: trim,
  stripBOM: stripBOM
};


/***/ })

/******/ });
});
//# sourceMappingURL=axios.map

//Included:lib/002.vue-v2.6.14.part.js
/*!
 * Vue.js v2.6.14
 * (c) 2014-2021 Evan You
 * Released under the MIT License.
 */
(function (root, factory) {
  const scope = (typeof window === 'object') ? window : undefined;
  if(typeof scope === "undefined") return;
  if("vue" in scope) return scope.vue;
  const output = factory();
	if(typeof module === 'object' && typeof module.exports === 'object')
		module.exports = output;
	if(typeof define === 'function' && define.amd)
		define([], factory);
	if(typeof exports === 'object')
		exports["vue"] = output;
  scope["vue"] = output;
  scope["Vue"] = output;
})(this, function() {
  
    var emptyObject = Object.freeze({});
  
    // These helpers produce better VM code in JS engines due to their
    // explicitness and function inlining.
    function isUndef (v) {
      return v === undefined || v === null
    }
  
    function isDef (v) {
      return v !== undefined && v !== null
    }
  
    function isTrue (v) {
      return v === true
    }
  
    function isFalse (v) {
      return v === false
    }
  
    /**
     * Check if value is primitive.
     */
    function isPrimitive (value) {
      return (
        typeof value === 'string' ||
        typeof value === 'number' ||
        // $flow-disable-line
        typeof value === 'symbol' ||
        typeof value === 'boolean'
      )
    }
  
    /**
     * Quick object check - this is primarily used to tell
     * Objects from primitive values when we know the value
     * is a JSON-compliant type.
     */
    function isObject (obj) {
      return obj !== null && typeof obj === 'object'
    }
  
    /**
     * Get the raw type string of a value, e.g., [object Object].
     */
    var _toString = Object.prototype.toString;
  
    function toRawType (value) {
      return _toString.call(value).slice(8, -1)
    }
  
    /**
     * Strict object type check. Only returns true
     * for plain JavaScript objects.
     */
    function isPlainObject (obj) {
      return _toString.call(obj) === '[object Object]'
    }
  
    function isRegExp (v) {
      return _toString.call(v) === '[object RegExp]'
    }
  
    /**
     * Check if val is a valid array index.
     */
    function isValidArrayIndex (val) {
      var n = parseFloat(String(val));
      return n >= 0 && Math.floor(n) === n && isFinite(val)
    }
  
    function isPromise (val) {
      return (
        isDef(val) &&
        typeof val.then === 'function' &&
        typeof val.catch === 'function'
      )
    }
  
    /**
     * Convert a value to a string that is actually rendered.
     */
    function toString (val) {
      return val == null
        ? ''
        : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
          ? JSON.stringify(val, null, 2)
          : String(val)
    }
  
    /**
     * Convert an input value to a number for persistence.
     * If the conversion fails, return original string.
     */
    function toNumber (val) {
      var n = parseFloat(val);
      return isNaN(n) ? val : n
    }
  
    /**
     * Make a map and return a function for checking if a key
     * is in that map.
     */
    function makeMap (
      str,
      expectsLowerCase
    ) {
      var map = Object.create(null);
      var list = str.split(',');
      for (var i = 0; i < list.length; i++) {
        map[list[i]] = true;
      }
      return expectsLowerCase
        ? function (val) { return map[val.toLowerCase()]; }
        : function (val) { return map[val]; }
    }
  
    /**
     * Check if a tag is a built-in tag.
     */
    var isBuiltInTag = makeMap('slot,component', true);
  
    /**
     * Check if an attribute is a reserved attribute.
     */
    var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
  
    /**
     * Remove an item from an array.
     */
    function remove (arr, item) {
      if (arr.length) {
        var index = arr.indexOf(item);
        if (index > -1) {
          return arr.splice(index, 1)
        }
      }
    }
  
    /**
     * Check whether an object has the property.
     */
    var hasOwnProperty = Object.prototype.hasOwnProperty;
    function hasOwn (obj, key) {
      return hasOwnProperty.call(obj, key)
    }
  
    /**
     * Create a cached version of a pure function.
     */
    function cached (fn) {
      var cache = Object.create(null);
      return (function cachedFn (str) {
        var hit = cache[str];
        return hit || (cache[str] = fn(str))
      })
    }
  
    /**
     * Camelize a hyphen-delimited string.
     */
    var camelizeRE = /-(\w)/g;
    var camelize = cached(function (str) {
      return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
    });
  
    /**
     * Capitalize a string.
     */
    var capitalize = cached(function (str) {
      return str.charAt(0).toUpperCase() + str.slice(1)
    });
  
    /**
     * Hyphenate a camelCase string.
     */
    var hyphenateRE = /\B([A-Z])/g;
    var hyphenate = cached(function (str) {
      return str.replace(hyphenateRE, '-$1').toLowerCase()
    });
  
    /**
     * Simple bind polyfill for environments that do not support it,
     * e.g., PhantomJS 1.x. Technically, we don't need this anymore
     * since native bind is now performant enough in most browsers.
     * But removing it would mean breaking code that was able to run in
     * PhantomJS 1.x, so this must be kept for backward compatibility.
     */
  
    /* istanbul ignore next */
    function polyfillBind (fn, ctx) {
      function boundFn (a) {
        var l = arguments.length;
        return l
          ? l > 1
            ? fn.apply(ctx, arguments)
            : fn.call(ctx, a)
          : fn.call(ctx)
      }
  
      boundFn._length = fn.length;
      return boundFn
    }
  
    function nativeBind (fn, ctx) {
      return fn.bind(ctx)
    }
  
    var bind = Function.prototype.bind
      ? nativeBind
      : polyfillBind;
  
    /**
     * Convert an Array-like object to a real Array.
     */
    function toArray (list, start) {
      start = start || 0;
      var i = list.length - start;
      var ret = new Array(i);
      while (i--) {
        ret[i] = list[i + start];
      }
      return ret
    }
  
    /**
     * Mix properties into target object.
     */
    function extend (to, _from) {
      for (var key in _from) {
        to[key] = _from[key];
      }
      return to
    }
  
    /**
     * Merge an Array of Objects into a single Object.
     */
    function toObject (arr) {
      var res = {};
      for (var i = 0; i < arr.length; i++) {
        if (arr[i]) {
          extend(res, arr[i]);
        }
      }
      return res
    }
  
    /* eslint-disable no-unused-vars */
  
    /**
     * Perform no operation.
     * Stubbing args to make Flow happy without leaving useless transpiled code
     * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
     */
    function noop (a, b, c) {}
  
    /**
     * Always return false.
     */
    var no = function (a, b, c) { return false; };
  
    /* eslint-enable no-unused-vars */
  
    /**
     * Return the same value.
     */
    var identity = function (_) { return _; };
  
    /**
     * Generate a string containing static keys from compiler modules.
     */
    function genStaticKeys (modules) {
      return modules.reduce(function (keys, m) {
        return keys.concat(m.staticKeys || [])
      }, []).join(',')
    }
  
    /**
     * Check if two values are loosely equal - that is,
     * if they are plain objects, do they have the same shape?
     */
    function looseEqual (a, b) {
      if (a === b) { return true }
      var isObjectA = isObject(a);
      var isObjectB = isObject(b);
      if (isObjectA && isObjectB) {
        try {
          var isArrayA = Array.isArray(a);
          var isArrayB = Array.isArray(b);
          if (isArrayA && isArrayB) {
            return a.length === b.length && a.every(function (e, i) {
              return looseEqual(e, b[i])
            })
          } else if (a instanceof Date && b instanceof Date) {
            return a.getTime() === b.getTime()
          } else if (!isArrayA && !isArrayB) {
            var keysA = Object.keys(a);
            var keysB = Object.keys(b);
            return keysA.length === keysB.length && keysA.every(function (key) {
              return looseEqual(a[key], b[key])
            })
          } else {
            /* istanbul ignore next */
            return false
          }
        } catch (e) {
          /* istanbul ignore next */
          return false
        }
      } else if (!isObjectA && !isObjectB) {
        return String(a) === String(b)
      } else {
        return false
      }
    }
  
    /**
     * Return the first index at which a loosely equal value can be
     * found in the array (if value is a plain object, the array must
     * contain an object of the same shape), or -1 if it is not present.
     */
    function looseIndexOf (arr, val) {
      for (var i = 0; i < arr.length; i++) {
        if (looseEqual(arr[i], val)) { return i }
      }
      return -1
    }
  
    /**
     * Ensure a function is called only once.
     */
    function once (fn) {
      var called = false;
      return function () {
        if (!called) {
          called = true;
          fn.apply(this, arguments);
        }
      }
    }
  
    var SSR_ATTR = 'data-server-rendered';
  
    var ASSET_TYPES = [
      'component',
      'directive',
      'filter'
    ];
  
    var LIFECYCLE_HOOKS = [
      'beforeCreate',
      'created',
      'beforeMount',
      'mounted',
      'beforeUpdate',
      'updated',
      'beforeDestroy',
      'destroyed',
      'activated',
      'deactivated',
      'errorCaptured',
      'serverPrefetch'
    ];
  
    /*  */
  
  
  
    var config = ({
      /**
       * Option merge strategies (used in core/util/options)
       */
      // $flow-disable-line
      optionMergeStrategies: Object.create(null),
  
      /**
       * Whether to suppress warnings.
       */
      silent: false,
  
      /**
       * Show production mode tip message on boot?
       */
      productionTip: "development" !== 'production',
  
      /**
       * Whether to enable devtools
       */
      devtools: "development" !== 'production',
  
      /**
       * Whether to record perf
       */
      performance: false,
  
      /**
       * Error handler for watcher errors
       */
      errorHandler: null,
  
      /**
       * Warn handler for watcher warns
       */
      warnHandler: null,
  
      /**
       * Ignore certain custom elements
       */
      ignoredElements: [],
  
      /**
       * Custom user key aliases for v-on
       */
      // $flow-disable-line
      keyCodes: Object.create(null),
  
      /**
       * Check if a tag is reserved so that it cannot be registered as a
       * component. This is platform-dependent and may be overwritten.
       */
      isReservedTag: no,
  
      /**
       * Check if an attribute is reserved so that it cannot be used as a component
       * prop. This is platform-dependent and may be overwritten.
       */
      isReservedAttr: no,
  
      /**
       * Check if a tag is an unknown element.
       * Platform-dependent.
       */
      isUnknownElement: no,
  
      /**
       * Get the namespace of an element
       */
      getTagNamespace: noop,
  
      /**
       * Parse the real tag name for the specific platform.
       */
      parsePlatformTagName: identity,
  
      /**
       * Check if an attribute must be bound using property, e.g. value
       * Platform-dependent.
       */
      mustUseProp: no,
  
      /**
       * Perform updates asynchronously. Intended to be used by Vue Test Utils
       * This will significantly reduce performance if set to false.
       */
      async: true,
  
      /**
       * Exposed for legacy reasons
       */
      _lifecycleHooks: LIFECYCLE_HOOKS
    });
  
    /*  */
  
    /**
     * unicode letters used for parsing html tags, component names and property paths.
     * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
     * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
     */
    var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
  
    /**
     * Check if a string starts with $ or _
     */
    function isReserved (str) {
      var c = (str + '').charCodeAt(0);
      return c === 0x24 || c === 0x5F
    }
  
    /**
     * Define a property.
     */
    function def (obj, key, val, enumerable) {
      Object.defineProperty(obj, key, {
        value: val,
        enumerable: !!enumerable,
        writable: true,
        configurable: true
      });
    }
  
    /**
     * Parse simple path.
     */
    var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
    function parsePath (path) {
      if (bailRE.test(path)) {
        return
      }
      var segments = path.split('.');
      return function (obj) {
        for (var i = 0; i < segments.length; i++) {
          if (!obj) { return }
          obj = obj[segments[i]];
        }
        return obj
      }
    }
  
    /*  */
  
    // can we use __proto__?
    var hasProto = '__proto__' in {};
  
    // Browser environment sniffing
    var inBrowser = typeof window !== 'undefined';
    var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
    var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
    var UA = inBrowser && window.navigator.userAgent.toLowerCase();
    var isIE = UA && /msie|trident/.test(UA);
    var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
    var isEdge = UA && UA.indexOf('edge/') > 0;
    var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
    var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
    var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
    var isPhantomJS = UA && /phantomjs/.test(UA);
    var isFF = UA && UA.match(/firefox\/(\d+)/);
  
    // Firefox has a "watch" function on Object.prototype...
    var nativeWatch = ({}).watch;
  
    var supportsPassive = false;
    if (inBrowser) {
      try {
        var opts = {};
        Object.defineProperty(opts, 'passive', ({
          get: function get () {
            /* istanbul ignore next */
            supportsPassive = true;
          }
        })); // https://github.com/facebook/flow/issues/285
        window.addEventListener('test-passive', null, opts);
      } catch (e) {}
    }
  
    // this needs to be lazy-evaled because vue may be required before
    // vue-server-renderer can set VUE_ENV
    var _isServer;
    var isServerRendering = function () {
      if (_isServer === undefined) {
        /* istanbul ignore if */
        if (!inBrowser && !inWeex && typeof global !== 'undefined') {
          // detect presence of vue-server-renderer and avoid
          // Webpack shimming the process
          _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
        } else {
          _isServer = false;
        }
      }
      return _isServer
    };
  
    // detect devtools
    var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
  
    /* istanbul ignore next */
    function isNative (Ctor) {
      return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
    }
  
    var hasSymbol =
      typeof Symbol !== 'undefined' && isNative(Symbol) &&
      typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
  
    var _Set;
    /* istanbul ignore if */ // $flow-disable-line
    if (typeof Set !== 'undefined' && isNative(Set)) {
      // use native Set when available.
      _Set = Set;
    } else {
      // a non-standard Set polyfill that only works with primitive keys.
      _Set = /*@__PURE__*/(function () {
        function Set () {
          this.set = Object.create(null);
        }
        Set.prototype.has = function has (key) {
          return this.set[key] === true
        };
        Set.prototype.add = function add (key) {
          this.set[key] = true;
        };
        Set.prototype.clear = function clear () {
          this.set = Object.create(null);
        };
  
        return Set;
      }());
    }
  
    /*  */
  
    var warn = noop;
    var tip = noop;
    var generateComponentTrace = (noop); // work around flow check
    var formatComponentName = (noop);
  
    {
      var hasConsole = typeof console !== 'undefined';
      var classifyRE = /(?:^|[-_])(\w)/g;
      var classify = function (str) { return str
        .replace(classifyRE, function (c) { return c.toUpperCase(); })
        .replace(/[-_]/g, ''); };
  
      warn = function (msg, vm) {
        var trace = vm ? generateComponentTrace(vm) : '';
  
        if (config.warnHandler) {
          config.warnHandler.call(null, msg, vm, trace);
        } else if (hasConsole && (!config.silent)) {
          console.error(("[Vue warn]: " + msg + trace));
        }
      };
  
      tip = function (msg, vm) {
        if (hasConsole && (!config.silent)) {
          console.warn("[Vue tip]: " + msg + (
            vm ? generateComponentTrace(vm) : ''
          ));
        }
      };
  
      formatComponentName = function (vm, includeFile) {
        if (vm.$root === vm) {
          return '<Root>'
        }
        var options = typeof vm === 'function' && vm.cid != null
          ? vm.options
          : vm._isVue
            ? vm.$options || vm.constructor.options
            : vm;
        var name = options.name || options._componentTag;
        var file = options.__file;
        if (!name && file) {
          var match = file.match(/([^/\\]+)\.vue$/);
          name = match && match[1];
        }
  
        return (
          (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
          (file && includeFile !== false ? (" at " + file) : '')
        )
      };
  
      var repeat = function (str, n) {
        var res = '';
        while (n) {
          if (n % 2 === 1) { res += str; }
          if (n > 1) { str += str; }
          n >>= 1;
        }
        return res
      };
  
      generateComponentTrace = function (vm) {
        if (vm._isVue && vm.$parent) {
          var tree = [];
          var currentRecursiveSequence = 0;
          while (vm) {
            if (tree.length > 0) {
              var last = tree[tree.length - 1];
              if (last.constructor === vm.constructor) {
                currentRecursiveSequence++;
                vm = vm.$parent;
                continue
              } else if (currentRecursiveSequence > 0) {
                tree[tree.length - 1] = [last, currentRecursiveSequence];
                currentRecursiveSequence = 0;
              }
            }
            tree.push(vm);
            vm = vm.$parent;
          }
          return '\n\nfound in\n\n' + tree
            .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
                ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
                : formatComponentName(vm))); })
            .join('\n')
        } else {
          return ("\n\n(found in " + (formatComponentName(vm)) + ")")
        }
      };
    }
  
    /*  */
  
    var uid = 0;
  
    /**
     * A dep is an observable that can have multiple
     * directives subscribing to it.
     */
    var Dep = function Dep () {
      this.id = uid++;
      this.subs = [];
    };
  
    Dep.prototype.addSub = function addSub (sub) {
      this.subs.push(sub);
    };
  
    Dep.prototype.removeSub = function removeSub (sub) {
      remove(this.subs, sub);
    };
  
    Dep.prototype.depend = function depend () {
      if (Dep.target) {
        Dep.target.addDep(this);
      }
    };
  
    Dep.prototype.notify = function notify () {
      // stabilize the subscriber list first
      var subs = this.subs.slice();
      if (!config.async) {
        // subs aren't sorted in scheduler if not running async
        // we need to sort them now to make sure they fire in correct
        // order
        subs.sort(function (a, b) { return a.id - b.id; });
      }
      for (var i = 0, l = subs.length; i < l; i++) {
        subs[i].update();
      }
    };
  
    // The current target watcher being evaluated.
    // This is globally unique because only one watcher
    // can be evaluated at a time.
    Dep.target = null;
    var targetStack = [];
  
    function pushTarget (target) {
      targetStack.push(target);
      Dep.target = target;
    }
  
    function popTarget () {
      targetStack.pop();
      Dep.target = targetStack[targetStack.length - 1];
    }
  
    /*  */
  
    var VNode = function VNode (
      tag,
      data,
      children,
      text,
      elm,
      context,
      componentOptions,
      asyncFactory
    ) {
      this.tag = tag;
      this.data = data;
      this.children = children;
      this.text = text;
      this.elm = elm;
      this.ns = undefined;
      this.context = context;
      this.fnContext = undefined;
      this.fnOptions = undefined;
      this.fnScopeId = undefined;
      this.key = data && data.key;
      this.componentOptions = componentOptions;
      this.componentInstance = undefined;
      this.parent = undefined;
      this.raw = false;
      this.isStatic = false;
      this.isRootInsert = true;
      this.isComment = false;
      this.isCloned = false;
      this.isOnce = false;
      this.asyncFactory = asyncFactory;
      this.asyncMeta = undefined;
      this.isAsyncPlaceholder = false;
    };
  
    var prototypeAccessors = { child: { configurable: true } };
  
    // DEPRECATED: alias for componentInstance for backwards compat.
    /* istanbul ignore next */
    prototypeAccessors.child.get = function () {
      return this.componentInstance
    };
  
    Object.defineProperties( VNode.prototype, prototypeAccessors );
  
    var createEmptyVNode = function (text) {
      if ( text === void 0 ) text = '';
  
      var node = new VNode();
      node.text = text;
      node.isComment = true;
      return node
    };
  
    function createTextVNode (val) {
      return new VNode(undefined, undefined, undefined, String(val))
    }
  
    // optimized shallow clone
    // used for static nodes and slot nodes because they may be reused across
    // multiple renders, cloning them avoids errors when DOM manipulations rely
    // on their elm reference.
    function cloneVNode (vnode) {
      var cloned = new VNode(
        vnode.tag,
        vnode.data,
        // #7975
        // clone children array to avoid mutating original in case of cloning
        // a child.
        vnode.children && vnode.children.slice(),
        vnode.text,
        vnode.elm,
        vnode.context,
        vnode.componentOptions,
        vnode.asyncFactory
      );
      cloned.ns = vnode.ns;
      cloned.isStatic = vnode.isStatic;
      cloned.key = vnode.key;
      cloned.isComment = vnode.isComment;
      cloned.fnContext = vnode.fnContext;
      cloned.fnOptions = vnode.fnOptions;
      cloned.fnScopeId = vnode.fnScopeId;
      cloned.asyncMeta = vnode.asyncMeta;
      cloned.isCloned = true;
      return cloned
    }
  
    /*
     * not type checking this file because flow doesn't play well with
     * dynamically accessing methods on Array prototype
     */
  
    var arrayProto = Array.prototype;
    var arrayMethods = Object.create(arrayProto);
  
    var methodsToPatch = [
      'push',
      'pop',
      'shift',
      'unshift',
      'splice',
      'sort',
      'reverse'
    ];
  
    /**
     * Intercept mutating methods and emit events
     */
    methodsToPatch.forEach(function (method) {
      // cache original method
      var original = arrayProto[method];
      def(arrayMethods, method, function mutator () {
        var args = [], len = arguments.length;
        while ( len-- ) args[ len ] = arguments[ len ];
  
        var result = original.apply(this, args);
        var ob = this.__ob__;
        var inserted;
        switch (method) {
          case 'push':
          case 'unshift':
            inserted = args;
            break
          case 'splice':
            inserted = args.slice(2);
            break
        }
        if (inserted) { ob.observeArray(inserted); }
        // notify change
        ob.dep.notify();
        return result
      });
    });
  
    /*  */
  
    var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
  
    /**
     * In some cases we may want to disable observation inside a component's
     * update computation.
     */
    var shouldObserve = true;
  
    function toggleObserving (value) {
      shouldObserve = value;
    }
  
    /**
     * Observer class that is attached to each observed
     * object. Once attached, the observer converts the target
     * object's property keys into getter/setters that
     * collect dependencies and dispatch updates.
     */
    var Observer = function Observer (value) {
      this.value = value;
      this.dep = new Dep();
      this.vmCount = 0;
      def(value, '__ob__', this);
      if (Array.isArray(value)) {
        if (hasProto) {
          protoAugment(value, arrayMethods);
        } else {
          copyAugment(value, arrayMethods, arrayKeys);
        }
        this.observeArray(value);
      } else {
        this.walk(value);
      }
    };
  
    /**
     * Walk through all properties and convert them into
     * getter/setters. This method should only be called when
     * value type is Object.
     */
    Observer.prototype.walk = function walk (obj) {
      var keys = Object.keys(obj);
      for (var i = 0; i < keys.length; i++) {
        defineReactive$$1(obj, keys[i]);
      }
    };
  
    /**
     * Observe a list of Array items.
     */
    Observer.prototype.observeArray = function observeArray (items) {
      for (var i = 0, l = items.length; i < l; i++) {
        observe(items[i]);
      }
    };
  
    // helpers
  
    /**
     * Augment a target Object or Array by intercepting
     * the prototype chain using __proto__
     */
    function protoAugment (target, src) {
      /* eslint-disable no-proto */
      target.__proto__ = src;
      /* eslint-enable no-proto */
    }
  
    /**
     * Augment a target Object or Array by defining
     * hidden properties.
     */
    /* istanbul ignore next */
    function copyAugment (target, src, keys) {
      for (var i = 0, l = keys.length; i < l; i++) {
        var key = keys[i];
        def(target, key, src[key]);
      }
    }
  
    /**
     * Attempt to create an observer instance for a value,
     * returns the new observer if successfully observed,
     * or the existing observer if the value already has one.
     */
    function observe (value, asRootData) {
      if (!isObject(value) || value instanceof VNode) {
        return
      }
      var ob;
      if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
        ob = value.__ob__;
      } else if (
        shouldObserve &&
        !isServerRendering() &&
        (Array.isArray(value) || isPlainObject(value)) &&
        Object.isExtensible(value) &&
        !value._isVue
      ) {
        ob = new Observer(value);
      }
      if (asRootData && ob) {
        ob.vmCount++;
      }
      return ob
    }
  
    /**
     * Define a reactive property on an Object.
     */
    function defineReactive$$1 (
      obj,
      key,
      val,
      customSetter,
      shallow
    ) {
      var dep = new Dep();
  
      var property = Object.getOwnPropertyDescriptor(obj, key);
      if (property && property.configurable === false) {
        return
      }
  
      // cater for pre-defined getter/setters
      var getter = property && property.get;
      var setter = property && property.set;
      if ((!getter || setter) && arguments.length === 2) {
        val = obj[key];
      }
  
      var childOb = !shallow && observe(val);
      Object.defineProperty(obj, key, {
        enumerable: true,
        configurable: true,
        get: function reactiveGetter () {
          var value = getter ? getter.call(obj) : val;
          if (Dep.target) {
            dep.depend();
            if (childOb) {
              childOb.dep.depend();
              if (Array.isArray(value)) {
                dependArray(value);
              }
            }
          }
          return value
        },
        set: function reactiveSetter (newVal) {
          var value = getter ? getter.call(obj) : val;
          /* eslint-disable no-self-compare */
          if (newVal === value || (newVal !== newVal && value !== value)) {
            return
          }
          /* eslint-enable no-self-compare */
          if (customSetter) {
            customSetter();
          }
          // #7981: for accessor properties without setter
          if (getter && !setter) { return }
          if (setter) {
            setter.call(obj, newVal);
          } else {
            val = newVal;
          }
          childOb = !shallow && observe(newVal);
          dep.notify();
        }
      });
    }
  
    /**
     * Set a property on an object. Adds the new property and
     * triggers change notification if the property doesn't
     * already exist.
     */
    function set (target, key, val) {
      if (isUndef(target) || isPrimitive(target)
      ) {
        warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
      }
      if (Array.isArray(target) && isValidArrayIndex(key)) {
        target.length = Math.max(target.length, key);
        target.splice(key, 1, val);
        return val
      }
      if (key in target && !(key in Object.prototype)) {
        target[key] = val;
        return val
      }
      var ob = (target).__ob__;
      if (target._isVue || (ob && ob.vmCount)) {
        warn(
          'Avoid adding reactive properties to a Vue instance or its root $data ' +
          'at runtime - declare it upfront in the data option.'
        );
        return val
      }
      if (!ob) {
        target[key] = val;
        return val
      }
      defineReactive$$1(ob.value, key, val);
      ob.dep.notify();
      return val
    }
  
    /**
     * Delete a property and trigger change if necessary.
     */
    function del (target, key) {
      if (isUndef(target) || isPrimitive(target)
      ) {
        warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
      }
      if (Array.isArray(target) && isValidArrayIndex(key)) {
        target.splice(key, 1);
        return
      }
      var ob = (target).__ob__;
      if (target._isVue || (ob && ob.vmCount)) {
        warn(
          'Avoid deleting properties on a Vue instance or its root $data ' +
          '- just set it to null.'
        );
        return
      }
      if (!hasOwn(target, key)) {
        return
      }
      delete target[key];
      if (!ob) {
        return
      }
      ob.dep.notify();
    }
  
    /**
     * Collect dependencies on array elements when the array is touched, since
     * we cannot intercept array element access like property getters.
     */
    function dependArray (value) {
      for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
        e = value[i];
        e && e.__ob__ && e.__ob__.dep.depend();
        if (Array.isArray(e)) {
          dependArray(e);
        }
      }
    }
  
    /*  */
  
    /**
     * Option overwriting strategies are functions that handle
     * how to merge a parent option value and a child option
     * value into the final value.
     */
    var strats = config.optionMergeStrategies;
  
    /**
     * Options with restrictions
     */
    {
      strats.el = strats.propsData = function (parent, child, vm, key) {
        if (!vm) {
          warn(
            "option \"" + key + "\" can only be used during instance " +
            'creation with the `new` keyword.'
          );
        }
        return defaultStrat(parent, child)
      };
    }
  
    /**
     * Helper that recursively merges two data objects together.
     */
    function mergeData (to, from) {
      if (!from) { return to }
      var key, toVal, fromVal;
  
      var keys = hasSymbol
        ? Reflect.ownKeys(from)
        : Object.keys(from);
  
      for (var i = 0; i < keys.length; i++) {
        key = keys[i];
        // in case the object is already observed...
        if (key === '__ob__') { continue }
        toVal = to[key];
        fromVal = from[key];
        if (!hasOwn(to, key)) {
          set(to, key, fromVal);
        } else if (
          toVal !== fromVal &&
          isPlainObject(toVal) &&
          isPlainObject(fromVal)
        ) {
          mergeData(toVal, fromVal);
        }
      }
      return to
    }
  
    /**
     * Data
     */
    function mergeDataOrFn (
      parentVal,
      childVal,
      vm
    ) {
      if (!vm) {
        // in a Vue.extend merge, both should be functions
        if (!childVal) {
          return parentVal
        }
        if (!parentVal) {
          return childVal
        }
        // when parentVal & childVal are both present,
        // we need to return a function that returns the
        // merged result of both functions... no need to
        // check if parentVal is a function here because
        // it has to be a function to pass previous merges.
        return function mergedDataFn () {
          return mergeData(
            typeof childVal === 'function' ? childVal.call(this, this) : childVal,
            typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
          )
        }
      } else {
        return function mergedInstanceDataFn () {
          // instance merge
          var instanceData = typeof childVal === 'function'
            ? childVal.call(vm, vm)
            : childVal;
          var defaultData = typeof parentVal === 'function'
            ? parentVal.call(vm, vm)
            : parentVal;
          if (instanceData) {
            return mergeData(instanceData, defaultData)
          } else {
            return defaultData
          }
        }
      }
    }
  
    strats.data = function (
      parentVal,
      childVal,
      vm
    ) {
      if (!vm) {
        if (childVal && typeof childVal !== 'function') {
          warn(
            'The "data" option should be a function ' +
            'that returns a per-instance value in component ' +
            'definitions.',
            vm
          );
  
          return parentVal
        }
        return mergeDataOrFn(parentVal, childVal)
      }
  
      return mergeDataOrFn(parentVal, childVal, vm)
    };
  
    /**
     * Hooks and props are merged as arrays.
     */
    function mergeHook (
      parentVal,
      childVal
    ) {
      var res = childVal
        ? parentVal
          ? parentVal.concat(childVal)
          : Array.isArray(childVal)
            ? childVal
            : [childVal]
        : parentVal;
      return res
        ? dedupeHooks(res)
        : res
    }
  
    function dedupeHooks (hooks) {
      var res = [];
      for (var i = 0; i < hooks.length; i++) {
        if (res.indexOf(hooks[i]) === -1) {
          res.push(hooks[i]);
        }
      }
      return res
    }
  
    LIFECYCLE_HOOKS.forEach(function (hook) {
      strats[hook] = mergeHook;
    });
  
    /**
     * Assets
     *
     * When a vm is present (instance creation), we need to do
     * a three-way merge between constructor options, instance
     * options and parent options.
     */
    function mergeAssets (
      parentVal,
      childVal,
      vm,
      key
    ) {
      var res = Object.create(parentVal || null);
      if (childVal) {
        assertObjectType(key, childVal, vm);
        return extend(res, childVal)
      } else {
        return res
      }
    }
  
    ASSET_TYPES.forEach(function (type) {
      strats[type + 's'] = mergeAssets;
    });
  
    /**
     * Watchers.
     *
     * Watchers hashes should not overwrite one
     * another, so we merge them as arrays.
     */
    strats.watch = function (
      parentVal,
      childVal,
      vm,
      key
    ) {
      // work around Firefox's Object.prototype.watch...
      if (parentVal === nativeWatch) { parentVal = undefined; }
      if (childVal === nativeWatch) { childVal = undefined; }
      /* istanbul ignore if */
      if (!childVal) { return Object.create(parentVal || null) }
      {
        assertObjectType(key, childVal, vm);
      }
      if (!parentVal) { return childVal }
      var ret = {};
      extend(ret, parentVal);
      for (var key$1 in childVal) {
        var parent = ret[key$1];
        var child = childVal[key$1];
        if (parent && !Array.isArray(parent)) {
          parent = [parent];
        }
        ret[key$1] = parent
          ? parent.concat(child)
          : Array.isArray(child) ? child : [child];
      }
      return ret
    };
  
    /**
     * Other object hashes.
     */
    strats.props =
    strats.methods =
    strats.inject =
    strats.computed = function (
      parentVal,
      childVal,
      vm,
      key
    ) {
      if (childVal && "development" !== 'production') {
        assertObjectType(key, childVal, vm);
      }
      if (!parentVal) { return childVal }
      var ret = Object.create(null);
      extend(ret, parentVal);
      if (childVal) { extend(ret, childVal); }
      return ret
    };
    strats.provide = mergeDataOrFn;
  
    /**
     * Default strategy.
     */
    var defaultStrat = function (parentVal, childVal) {
      return childVal === undefined
        ? parentVal
        : childVal
    };
  
    /**
     * Validate component names
     */
    function checkComponents (options) {
      for (var key in options.components) {
        validateComponentName(key);
      }
    }
  
    function validateComponentName (name) {
      if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
        warn(
          'Invalid component name: "' + name + '". Component names ' +
          'should conform to valid custom element name in html5 specification.'
        );
      }
      if (isBuiltInTag(name) || config.isReservedTag(name)) {
        warn(
          'Do not use built-in or reserved HTML elements as component ' +
          'id: ' + name
        );
      }
    }
  
    /**
     * Ensure all props option syntax are normalized into the
     * Object-based format.
     */
    function normalizeProps (options, vm) {
      var props = options.props;
      if (!props) { return }
      var res = {};
      var i, val, name;
      if (Array.isArray(props)) {
        i = props.length;
        while (i--) {
          val = props[i];
          if (typeof val === 'string') {
            name = camelize(val);
            res[name] = { type: null };
          } else {
            warn('props must be strings when using array syntax.');
          }
        }
      } else if (isPlainObject(props)) {
        for (var key in props) {
          val = props[key];
          name = camelize(key);
          res[name] = isPlainObject(val)
            ? val
            : { type: val };
        }
      } else {
        warn(
          "Invalid value for option \"props\": expected an Array or an Object, " +
          "but got " + (toRawType(props)) + ".",
          vm
        );
      }
      options.props = res;
    }
  
    /**
     * Normalize all injections into Object-based format
     */
    function normalizeInject (options, vm) {
      var inject = options.inject;
      if (!inject) { return }
      var normalized = options.inject = {};
      if (Array.isArray(inject)) {
        for (var i = 0; i < inject.length; i++) {
          normalized[inject[i]] = { from: inject[i] };
        }
      } else if (isPlainObject(inject)) {
        for (var key in inject) {
          var val = inject[key];
          normalized[key] = isPlainObject(val)
            ? extend({ from: key }, val)
            : { from: val };
        }
      } else {
        warn(
          "Invalid value for option \"inject\": expected an Array or an Object, " +
          "but got " + (toRawType(inject)) + ".",
          vm
        );
      }
    }
  
    /**
     * Normalize raw function directives into object format.
     */
    function normalizeDirectives (options) {
      var dirs = options.directives;
      if (dirs) {
        for (var key in dirs) {
          var def$$1 = dirs[key];
          if (typeof def$$1 === 'function') {
            dirs[key] = { bind: def$$1, update: def$$1 };
          }
        }
      }
    }
  
    function assertObjectType (name, value, vm) {
      if (!isPlainObject(value)) {
        warn(
          "Invalid value for option \"" + name + "\": expected an Object, " +
          "but got " + (toRawType(value)) + ".",
          vm
        );
      }
    }
  
    /**
     * Merge two option objects into a new one.
     * Core utility used in both instantiation and inheritance.
     */
    function mergeOptions (
      parent,
      child,
      vm
    ) {
      {
        checkComponents(child);
      }
  
      if (typeof child === 'function') {
        child = child.options;
      }
  
      normalizeProps(child, vm);
      normalizeInject(child, vm);
      normalizeDirectives(child);
  
      // Apply extends and mixins on the child options,
      // but only if it is a raw options object that isn't
      // the result of another mergeOptions call.
      // Only merged options has the _base property.
      if (!child._base) {
        if (child.extends) {
          parent = mergeOptions(parent, child.extends, vm);
        }
        if (child.mixins) {
          for (var i = 0, l = child.mixins.length; i < l; i++) {
            parent = mergeOptions(parent, child.mixins[i], vm);
          }
        }
      }
  
      var options = {};
      var key;
      for (key in parent) {
        mergeField(key);
      }
      for (key in child) {
        if (!hasOwn(parent, key)) {
          mergeField(key);
        }
      }
      function mergeField (key) {
        var strat = strats[key] || defaultStrat;
        options[key] = strat(parent[key], child[key], vm, key);
      }
      return options
    }
  
    /**
     * Resolve an asset.
     * This function is used because child instances need access
     * to assets defined in its ancestor chain.
     */
    function resolveAsset (
      options,
      type,
      id,
      warnMissing
    ) {
      /* istanbul ignore if */
      if (typeof id !== 'string') {
        return
      }
      var assets = options[type];
      // check local registration variations first
      if (hasOwn(assets, id)) { return assets[id] }
      var camelizedId = camelize(id);
      if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
      var PascalCaseId = capitalize(camelizedId);
      if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
      // fallback to prototype chain
      var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
      if (warnMissing && !res) {
        warn(
          'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
          options
        );
      }
      return res
    }
  
    /*  */
  
  
  
    function validateProp (
      key,
      propOptions,
      propsData,
      vm
    ) {
      var prop = propOptions[key];
      var absent = !hasOwn(propsData, key);
      var value = propsData[key];
      // boolean casting
      var booleanIndex = getTypeIndex(Boolean, prop.type);
      if (booleanIndex > -1) {
        if (absent && !hasOwn(prop, 'default')) {
          value = false;
        } else if (value === '' || value === hyphenate(key)) {
          // only cast empty string / same name to boolean if
          // boolean has higher priority
          var stringIndex = getTypeIndex(String, prop.type);
          if (stringIndex < 0 || booleanIndex < stringIndex) {
            value = true;
          }
        }
      }
      // check default value
      if (value === undefined) {
        value = getPropDefaultValue(vm, prop, key);
        // since the default value is a fresh copy,
        // make sure to observe it.
        var prevShouldObserve = shouldObserve;
        toggleObserving(true);
        observe(value);
        toggleObserving(prevShouldObserve);
      }
      {
        assertProp(prop, key, value, vm, absent);
      }
      return value
    }
  
    /**
     * Get the default value of a prop.
     */
    function getPropDefaultValue (vm, prop, key) {
      // no default, return undefined
      if (!hasOwn(prop, 'default')) {
        return undefined
      }
      var def = prop.default;
      // warn against non-factory defaults for Object & Array
      if (isObject(def)) {
        warn(
          'Invalid default value for prop "' + key + '": ' +
          'Props with type Object/Array must use a factory function ' +
          'to return the default value.',
          vm
        );
      }
      // the raw prop value was also undefined from previous render,
      // return previous default value to avoid unnecessary watcher trigger
      if (vm && vm.$options.propsData &&
        vm.$options.propsData[key] === undefined &&
        vm._props[key] !== undefined
      ) {
        return vm._props[key]
      }
      // call factory function for non-Function types
      // a value is Function if its prototype is function even across different execution context
      return typeof def === 'function' && getType(prop.type) !== 'Function'
        ? def.call(vm)
        : def
    }
  
    /**
     * Assert whether a prop is valid.
     */
    function assertProp (
      prop,
      name,
      value,
      vm,
      absent
    ) {
      if (prop.required && absent) {
        warn(
          'Missing required prop: "' + name + '"',
          vm
        );
        return
      }
      if (value == null && !prop.required) {
        return
      }
      var type = prop.type;
      var valid = !type || type === true;
      var expectedTypes = [];
      if (type) {
        if (!Array.isArray(type)) {
          type = [type];
        }
        for (var i = 0; i < type.length && !valid; i++) {
          var assertedType = assertType(value, type[i], vm);
          expectedTypes.push(assertedType.expectedType || '');
          valid = assertedType.valid;
        }
      }
  
      var haveExpectedTypes = expectedTypes.some(function (t) { return t; });
      if (!valid && haveExpectedTypes) {
        warn(
          getInvalidTypeMessage(name, value, expectedTypes),
          vm
        );
        return
      }
      var validator = prop.validator;
      if (validator) {
        if (!validator(value)) {
          warn(
            'Invalid prop: custom validator check failed for prop "' + name + '".',
            vm
          );
        }
      }
    }
  
    var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol|BigInt)$/;
  
    function assertType (value, type, vm) {
      var valid;
      var expectedType = getType(type);
      if (simpleCheckRE.test(expectedType)) {
        var t = typeof value;
        valid = t === expectedType.toLowerCase();
        // for primitive wrapper objects
        if (!valid && t === 'object') {
          valid = value instanceof type;
        }
      } else if (expectedType === 'Object') {
        valid = isPlainObject(value);
      } else if (expectedType === 'Array') {
        valid = Array.isArray(value);
      } else {
        try {
          valid = value instanceof type;
        } catch (e) {
          warn('Invalid prop type: "' + String(type) + '" is not a constructor', vm);
          valid = false;
        }
      }
      return {
        valid: valid,
        expectedType: expectedType
      }
    }
  
    var functionTypeCheckRE = /^\s*function (\w+)/;
  
    /**
     * Use function string name to check built-in types,
     * because a simple equality check will fail when running
     * across different vms / iframes.
     */
    function getType (fn) {
      var match = fn && fn.toString().match(functionTypeCheckRE);
      return match ? match[1] : ''
    }
  
    function isSameType (a, b) {
      return getType(a) === getType(b)
    }
  
    function getTypeIndex (type, expectedTypes) {
      if (!Array.isArray(expectedTypes)) {
        return isSameType(expectedTypes, type) ? 0 : -1
      }
      for (var i = 0, len = expectedTypes.length; i < len; i++) {
        if (isSameType(expectedTypes[i], type)) {
          return i
        }
      }
      return -1
    }
  
    function getInvalidTypeMessage (name, value, expectedTypes) {
      var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
        " Expected " + (expectedTypes.map(capitalize).join(', '));
      var expectedType = expectedTypes[0];
      var receivedType = toRawType(value);
      // check if we need to specify expected value
      if (
        expectedTypes.length === 1 &&
        isExplicable(expectedType) &&
        isExplicable(typeof value) &&
        !isBoolean(expectedType, receivedType)
      ) {
        message += " with value " + (styleValue(value, expectedType));
      }
      message += ", got " + receivedType + " ";
      // check if we need to specify received value
      if (isExplicable(receivedType)) {
        message += "with value " + (styleValue(value, receivedType)) + ".";
      }
      return message
    }
  
    function styleValue (value, type) {
      if (type === 'String') {
        return ("\"" + value + "\"")
      } else if (type === 'Number') {
        return ("" + (Number(value)))
      } else {
        return ("" + value)
      }
    }
  
    var EXPLICABLE_TYPES = ['string', 'number', 'boolean'];
    function isExplicable (value) {
      return EXPLICABLE_TYPES.some(function (elem) { return value.toLowerCase() === elem; })
    }
  
    function isBoolean () {
      var args = [], len = arguments.length;
      while ( len-- ) args[ len ] = arguments[ len ];
  
      return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
    }
  
    /*  */
  
    function handleError (err, vm, info) {
      // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
      // See: https://github.com/vuejs/vuex/issues/1505
      pushTarget();
      try {
        if (vm) {
          var cur = vm;
          while ((cur = cur.$parent)) {
            var hooks = cur.$options.errorCaptured;
            if (hooks) {
              for (var i = 0; i < hooks.length; i++) {
                try {
                  var capture = hooks[i].call(cur, err, vm, info) === false;
                  if (capture) { return }
                } catch (e) {
                  globalHandleError(e, cur, 'errorCaptured hook');
                }
              }
            }
          }
        }
        globalHandleError(err, vm, info);
      } finally {
        popTarget();
      }
    }
  
    function invokeWithErrorHandling (
      handler,
      context,
      args,
      vm,
      info
    ) {
      var res;
      try {
        res = args ? handler.apply(context, args) : handler.call(context);
        if (res && !res._isVue && isPromise(res) && !res._handled) {
          res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
          // issue #9511
          // avoid catch triggering multiple times when nested calls
          res._handled = true;
        }
      } catch (e) {
        handleError(e, vm, info);
      }
      return res
    }
  
    function globalHandleError (err, vm, info) {
      if (config.errorHandler) {
        try {
          return config.errorHandler.call(null, err, vm, info)
        } catch (e) {
          // if the user intentionally throws the original error in the handler,
          // do not log it twice
          if (e !== err) {
            logError(e, null, 'config.errorHandler');
          }
        }
      }
      logError(err, vm, info);
    }
  
    function logError (err, vm, info) {
      {
        warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
      }
      /* istanbul ignore else */
      if ((inBrowser || inWeex) && typeof console !== 'undefined') {
        console.error(err);
      } else {
        throw err
      }
    }
  
    /*  */
  
    var isUsingMicroTask = false;
  
    var callbacks = [];
    var pending = false;
  
    function flushCallbacks () {
      pending = false;
      var copies = callbacks.slice(0);
      callbacks.length = 0;
      for (var i = 0; i < copies.length; i++) {
        copies[i]();
      }
    }
  
    // Here we have async deferring wrappers using microtasks.
    // In 2.5 we used (macro) tasks (in combination with microtasks).
    // However, it has subtle problems when state is changed right before repaint
    // (e.g. #6813, out-in transitions).
    // Also, using (macro) tasks in event handler would cause some weird behaviors
    // that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
    // So we now use microtasks everywhere, again.
    // A major drawback of this tradeoff is that there are some scenarios
    // where microtasks have too high a priority and fire in between supposedly
    // sequential events (e.g. #4521, #6690, which have workarounds)
    // or even between bubbling of the same event (#6566).
    var timerFunc;
  
    // The nextTick behavior leverages the microtask queue, which can be accessed
    // via either native Promise.then or MutationObserver.
    // MutationObserver has wider support, however it is seriously bugged in
    // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
    // completely stops working after triggering a few times... so, if native
    // Promise is available, we will use it:
    /* istanbul ignore next, $flow-disable-line */
    if (typeof Promise !== 'undefined' && isNative(Promise)) {
      var p = Promise.resolve();
      timerFunc = function () {
        p.then(flushCallbacks);
        // In problematic UIWebViews, Promise.then doesn't completely break, but
        // it can get stuck in a weird state where callbacks are pushed into the
        // microtask queue but the queue isn't being flushed, until the browser
        // needs to do some other work, e.g. handle a timer. Therefore we can
        // "force" the microtask queue to be flushed by adding an empty timer.
        if (isIOS) { setTimeout(noop); }
      };
      isUsingMicroTask = true;
    } else if (!isIE && typeof MutationObserver !== 'undefined' && (
      isNative(MutationObserver) ||
      // PhantomJS and iOS 7.x
      MutationObserver.toString() === '[object MutationObserverConstructor]'
    )) {
      // Use MutationObserver where native Promise is not available,
      // e.g. PhantomJS, iOS7, Android 4.4
      // (#6466 MutationObserver is unreliable in IE11)
      var counter = 1;
      var observer = new MutationObserver(flushCallbacks);
      var textNode = document.createTextNode(String(counter));
      observer.observe(textNode, {
        characterData: true
      });
      timerFunc = function () {
        counter = (counter + 1) % 2;
        textNode.data = String(counter);
      };
      isUsingMicroTask = true;
    } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
      // Fallback to setImmediate.
      // Technically it leverages the (macro) task queue,
      // but it is still a better choice than setTimeout.
      timerFunc = function () {
        setImmediate(flushCallbacks);
      };
    } else {
      // Fallback to setTimeout.
      timerFunc = function () {
        setTimeout(flushCallbacks, 0);
      };
    }
  
    function nextTick (cb, ctx) {
      var _resolve;
      callbacks.push(function () {
        if (cb) {
          try {
            cb.call(ctx);
          } catch (e) {
            handleError(e, ctx, 'nextTick');
          }
        } else if (_resolve) {
          _resolve(ctx);
        }
      });
      if (!pending) {
        pending = true;
        timerFunc();
      }
      // $flow-disable-line
      if (!cb && typeof Promise !== 'undefined') {
        return new Promise(function (resolve) {
          _resolve = resolve;
        })
      }
    }
  
    /*  */
  
    var mark;
    var measure;
  
    {
      var perf = inBrowser && window.performance;
      /* istanbul ignore if */
      if (
        perf &&
        perf.mark &&
        perf.measure &&
        perf.clearMarks &&
        perf.clearMeasures
      ) {
        mark = function (tag) { return perf.mark(tag); };
        measure = function (name, startTag, endTag) {
          perf.measure(name, startTag, endTag);
          perf.clearMarks(startTag);
          perf.clearMarks(endTag);
          // perf.clearMeasures(name)
        };
      }
    }
  
    /* not type checking this file because flow doesn't play well with Proxy */
  
    var initProxy;
  
    {
      var allowedGlobals = makeMap(
        'Infinity,undefined,NaN,isFinite,isNaN,' +
        'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
        'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,BigInt,' +
        'require' // for Webpack/Browserify
      );
  
      var warnNonPresent = function (target, key) {
        warn(
          "Property or method \"" + key + "\" is not defined on the instance but " +
          'referenced during render. Make sure that this property is reactive, ' +
          'either in the data option, or for class-based components, by ' +
          'initializing the property. ' +
          'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
          target
        );
      };
  
      var warnReservedPrefix = function (target, key) {
        warn(
          "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
          'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
          'prevent conflicts with Vue internals. ' +
          'See: https://vuejs.org/v2/api/#data',
          target
        );
      };
  
      var hasProxy =
        typeof Proxy !== 'undefined' && isNative(Proxy);
  
      if (hasProxy) {
        var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
        config.keyCodes = new Proxy(config.keyCodes, {
          set: function set (target, key, value) {
            if (isBuiltInModifier(key)) {
              warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
              return false
            } else {
              target[key] = value;
              return true
            }
          }
        });
      }
  
      var hasHandler = {
        has: function has (target, key) {
          var has = key in target;
          var isAllowed = allowedGlobals(key) ||
            (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
          if (!has && !isAllowed) {
            if (key in target.$data) { warnReservedPrefix(target, key); }
            else { warnNonPresent(target, key); }
          }
          return has || !isAllowed
        }
      };
  
      var getHandler = {
        get: function get (target, key) {
          if (typeof key === 'string' && !(key in target)) {
            if (key in target.$data) { warnReservedPrefix(target, key); }
            else { warnNonPresent(target, key); }
          }
          return target[key]
        }
      };
  
      initProxy = function initProxy (vm) {
        if (hasProxy) {
          // determine which proxy handler to use
          var options = vm.$options;
          var handlers = options.render && options.render._withStripped
            ? getHandler
            : hasHandler;
          vm._renderProxy = new Proxy(vm, handlers);
        } else {
          vm._renderProxy = vm;
        }
      };
    }
  
    /*  */
  
    var seenObjects = new _Set();
  
    /**
     * Recursively traverse an object to evoke all converted
     * getters, so that every nested property inside the object
     * is collected as a "deep" dependency.
     */
    function traverse (val) {
      _traverse(val, seenObjects);
      seenObjects.clear();
    }
  
    function _traverse (val, seen) {
      var i, keys;
      var isA = Array.isArray(val);
      if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
        return
      }
      if (val.__ob__) {
        var depId = val.__ob__.dep.id;
        if (seen.has(depId)) {
          return
        }
        seen.add(depId);
      }
      if (isA) {
        i = val.length;
        while (i--) { _traverse(val[i], seen); }
      } else {
        keys = Object.keys(val);
        i = keys.length;
        while (i--) { _traverse(val[keys[i]], seen); }
      }
    }
  
    /*  */
  
    var normalizeEvent = cached(function (name) {
      var passive = name.charAt(0) === '&';
      name = passive ? name.slice(1) : name;
      var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
      name = once$$1 ? name.slice(1) : name;
      var capture = name.charAt(0) === '!';
      name = capture ? name.slice(1) : name;
      return {
        name: name,
        once: once$$1,
        capture: capture,
        passive: passive
      }
    });
  
    function createFnInvoker (fns, vm) {
      function invoker () {
        var arguments$1 = arguments;
  
        var fns = invoker.fns;
        if (Array.isArray(fns)) {
          var cloned = fns.slice();
          for (var i = 0; i < cloned.length; i++) {
            invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
          }
        } else {
          // return handler return value for single handlers
          return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
        }
      }
      invoker.fns = fns;
      return invoker
    }
  
    function updateListeners (
      on,
      oldOn,
      add,
      remove$$1,
      createOnceHandler,
      vm
    ) {
      var name, def$$1, cur, old, event;
      for (name in on) {
        def$$1 = cur = on[name];
        old = oldOn[name];
        event = normalizeEvent(name);
        if (isUndef(cur)) {
          warn(
            "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
            vm
          );
        } else if (isUndef(old)) {
          if (isUndef(cur.fns)) {
            cur = on[name] = createFnInvoker(cur, vm);
          }
          if (isTrue(event.once)) {
            cur = on[name] = createOnceHandler(event.name, cur, event.capture);
          }
          add(event.name, cur, event.capture, event.passive, event.params);
        } else if (cur !== old) {
          old.fns = cur;
          on[name] = old;
        }
      }
      for (name in oldOn) {
        if (isUndef(on[name])) {
          event = normalizeEvent(name);
          remove$$1(event.name, oldOn[name], event.capture);
        }
      }
    }
  
    /*  */
  
    function mergeVNodeHook (def, hookKey, hook) {
      if (def instanceof VNode) {
        def = def.data.hook || (def.data.hook = {});
      }
      var invoker;
      var oldHook = def[hookKey];
  
      function wrappedHook () {
        hook.apply(this, arguments);
        // important: remove merged hook to ensure it's called only once
        // and prevent memory leak
        remove(invoker.fns, wrappedHook);
      }
  
      if (isUndef(oldHook)) {
        // no existing hook
        invoker = createFnInvoker([wrappedHook]);
      } else {
        /* istanbul ignore if */
        if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
          // already a merged invoker
          invoker = oldHook;
          invoker.fns.push(wrappedHook);
        } else {
          // existing plain hook
          invoker = createFnInvoker([oldHook, wrappedHook]);
        }
      }
  
      invoker.merged = true;
      def[hookKey] = invoker;
    }
  
    /*  */
  
    function extractPropsFromVNodeData (
      data,
      Ctor,
      tag
    ) {
      // we are only extracting raw values here.
      // validation and default values are handled in the child
      // component itself.
      var propOptions = Ctor.options.props;
      if (isUndef(propOptions)) {
        return
      }
      var res = {};
      var attrs = data.attrs;
      var props = data.props;
      if (isDef(attrs) || isDef(props)) {
        for (var key in propOptions) {
          var altKey = hyphenate(key);
          {
            var keyInLowerCase = key.toLowerCase();
            if (
              key !== keyInLowerCase &&
              attrs && hasOwn(attrs, keyInLowerCase)
            ) {
              tip(
                "Prop \"" + keyInLowerCase + "\" is passed to component " +
                (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
                " \"" + key + "\". " +
                "Note that HTML attributes are case-insensitive and camelCased " +
                "props need to use their kebab-case equivalents when using in-DOM " +
                "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
              );
            }
          }
          checkProp(res, props, key, altKey, true) ||
          checkProp(res, attrs, key, altKey, false);
        }
      }
      return res
    }
  
    function checkProp (
      res,
      hash,
      key,
      altKey,
      preserve
    ) {
      if (isDef(hash)) {
        if (hasOwn(hash, key)) {
          res[key] = hash[key];
          if (!preserve) {
            delete hash[key];
          }
          return true
        } else if (hasOwn(hash, altKey)) {
          res[key] = hash[altKey];
          if (!preserve) {
            delete hash[altKey];
          }
          return true
        }
      }
      return false
    }
  
    /*  */
  
    // The template compiler attempts to minimize the need for normalization by
    // statically analyzing the template at compile time.
    //
    // For plain HTML markup, normalization can be completely skipped because the
    // generated render function is guaranteed to return Array<VNode>. There are
    // two cases where extra normalization is needed:
  
    // 1. When the children contains components - because a functional component
    // may return an Array instead of a single root. In this case, just a simple
    // normalization is needed - if any child is an Array, we flatten the whole
    // thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
    // because functional components already normalize their own children.
    function simpleNormalizeChildren (children) {
      for (var i = 0; i < children.length; i++) {
        if (Array.isArray(children[i])) {
          return Array.prototype.concat.apply([], children)
        }
      }
      return children
    }
  
    // 2. When the children contains constructs that always generated nested Arrays,
    // e.g. <template>, <slot>, v-for, or when the children is provided by user
    // with hand-written render functions / JSX. In such cases a full normalization
    // is needed to cater to all possible types of children values.
    function normalizeChildren (children) {
      return isPrimitive(children)
        ? [createTextVNode(children)]
        : Array.isArray(children)
          ? normalizeArrayChildren(children)
          : undefined
    }
  
    function isTextNode (node) {
      return isDef(node) && isDef(node.text) && isFalse(node.isComment)
    }
  
    function normalizeArrayChildren (children, nestedIndex) {
      var res = [];
      var i, c, lastIndex, last;
      for (i = 0; i < children.length; i++) {
        c = children[i];
        if (isUndef(c) || typeof c === 'boolean') { continue }
        lastIndex = res.length - 1;
        last = res[lastIndex];
        //  nested
        if (Array.isArray(c)) {
          if (c.length > 0) {
            c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
            // merge adjacent text nodes
            if (isTextNode(c[0]) && isTextNode(last)) {
              res[lastIndex] = createTextVNode(last.text + (c[0]).text);
              c.shift();
            }
            res.push.apply(res, c);
          }
        } else if (isPrimitive(c)) {
          if (isTextNode(last)) {
            // merge adjacent text nodes
            // this is necessary for SSR hydration because text nodes are
            // essentially merged when rendered to HTML strings
            res[lastIndex] = createTextVNode(last.text + c);
          } else if (c !== '') {
            // convert primitive to vnode
            res.push(createTextVNode(c));
          }
        } else {
          if (isTextNode(c) && isTextNode(last)) {
            // merge adjacent text nodes
            res[lastIndex] = createTextVNode(last.text + c.text);
          } else {
            // default key for nested array children (likely generated by v-for)
            if (isTrue(children._isVList) &&
              isDef(c.tag) &&
              isUndef(c.key) &&
              isDef(nestedIndex)) {
              c.key = "__vlist" + nestedIndex + "_" + i + "__";
            }
            res.push(c);
          }
        }
      }
      return res
    }
  
    /*  */
  
    function initProvide (vm) {
      var provide = vm.$options.provide;
      if (provide) {
        vm._provided = typeof provide === 'function'
          ? provide.call(vm)
          : provide;
      }
    }
  
    function initInjections (vm) {
      var result = resolveInject(vm.$options.inject, vm);
      if (result) {
        toggleObserving(false);
        Object.keys(result).forEach(function (key) {
          /* istanbul ignore else */
          {
            defineReactive$$1(vm, key, result[key], function () {
              warn(
                "Avoid mutating an injected value directly since the changes will be " +
                "overwritten whenever the provided component re-renders. " +
                "injection being mutated: \"" + key + "\"",
                vm
              );
            });
          }
        });
        toggleObserving(true);
      }
    }
  
    function resolveInject (inject, vm) {
      if (inject) {
        // inject is :any because flow is not smart enough to figure out cached
        var result = Object.create(null);
        var keys = hasSymbol
          ? Reflect.ownKeys(inject)
          : Object.keys(inject);
  
        for (var i = 0; i < keys.length; i++) {
          var key = keys[i];
          // #6574 in case the inject object is observed...
          if (key === '__ob__') { continue }
          var provideKey = inject[key].from;
          var source = vm;
          while (source) {
            if (source._provided && hasOwn(source._provided, provideKey)) {
              result[key] = source._provided[provideKey];
              break
            }
            source = source.$parent;
          }
          if (!source) {
            if ('default' in inject[key]) {
              var provideDefault = inject[key].default;
              result[key] = typeof provideDefault === 'function'
                ? provideDefault.call(vm)
                : provideDefault;
            } else {
              warn(("Injection \"" + key + "\" not found"), vm);
            }
          }
        }
        return result
      }
    }
  
    /*  */
  
  
  
    /**
     * Runtime helper for resolving raw children VNodes into a slot object.
     */
    function resolveSlots (
      children,
      context
    ) {
      if (!children || !children.length) {
        return {}
      }
      var slots = {};
      for (var i = 0, l = children.length; i < l; i++) {
        var child = children[i];
        var data = child.data;
        // remove slot attribute if the node is resolved as a Vue slot node
        if (data && data.attrs && data.attrs.slot) {
          delete data.attrs.slot;
        }
        // named slots should only be respected if the vnode was rendered in the
        // same context.
        if ((child.context === context || child.fnContext === context) &&
          data && data.slot != null
        ) {
          var name = data.slot;
          var slot = (slots[name] || (slots[name] = []));
          if (child.tag === 'template') {
            slot.push.apply(slot, child.children || []);
          } else {
            slot.push(child);
          }
        } else {
          (slots.default || (slots.default = [])).push(child);
        }
      }
      // ignore slots that contains only whitespace
      for (var name$1 in slots) {
        if (slots[name$1].every(isWhitespace)) {
          delete slots[name$1];
        }
      }
      return slots
    }
  
    function isWhitespace (node) {
      return (node.isComment && !node.asyncFactory) || node.text === ' '
    }
  
    /*  */
  
    function isAsyncPlaceholder (node) {
      return node.isComment && node.asyncFactory
    }
  
    /*  */
  
    function normalizeScopedSlots (
      slots,
      normalSlots,
      prevSlots
    ) {
      var res;
      var hasNormalSlots = Object.keys(normalSlots).length > 0;
      var isStable = slots ? !!slots.$stable : !hasNormalSlots;
      var key = slots && slots.$key;
      if (!slots) {
        res = {};
      } else if (slots._normalized) {
        // fast path 1: child component re-render only, parent did not change
        return slots._normalized
      } else if (
        isStable &&
        prevSlots &&
        prevSlots !== emptyObject &&
        key === prevSlots.$key &&
        !hasNormalSlots &&
        !prevSlots.$hasNormal
      ) {
        // fast path 2: stable scoped slots w/ no normal slots to proxy,
        // only need to normalize once
        return prevSlots
      } else {
        res = {};
        for (var key$1 in slots) {
          if (slots[key$1] && key$1[0] !== '$') {
            res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
          }
        }
      }
      // expose normal slots on scopedSlots
      for (var key$2 in normalSlots) {
        if (!(key$2 in res)) {
          res[key$2] = proxyNormalSlot(normalSlots, key$2);
        }
      }
      // avoriaz seems to mock a non-extensible $scopedSlots object
      // and when that is passed down this would cause an error
      if (slots && Object.isExtensible(slots)) {
        (slots)._normalized = res;
      }
      def(res, '$stable', isStable);
      def(res, '$key', key);
      def(res, '$hasNormal', hasNormalSlots);
      return res
    }
  
    function normalizeScopedSlot(normalSlots, key, fn) {
      var normalized = function () {
        var res = arguments.length ? fn.apply(null, arguments) : fn({});
        res = res && typeof res === 'object' && !Array.isArray(res)
          ? [res] // single vnode
          : normalizeChildren(res);
        var vnode = res && res[0];
        return res && (
          !vnode ||
          (res.length === 1 && vnode.isComment && !isAsyncPlaceholder(vnode)) // #9658, #10391
        ) ? undefined
          : res
      };
      // this is a slot using the new v-slot syntax without scope. although it is
      // compiled as a scoped slot, render fn users would expect it to be present
      // on this.$slots because the usage is semantically a normal slot.
      if (fn.proxy) {
        Object.defineProperty(normalSlots, key, {
          get: normalized,
          enumerable: true,
          configurable: true
        });
      }
      return normalized
    }
  
    function proxyNormalSlot(slots, key) {
      return function () { return slots[key]; }
    }
  
    /*  */
  
    /**
     * Runtime helper for rendering v-for lists.
     */
    function renderList (
      val,
      render
    ) {
      var ret, i, l, keys, key;
      if (Array.isArray(val) || typeof val === 'string') {
        ret = new Array(val.length);
        for (i = 0, l = val.length; i < l; i++) {
          ret[i] = render(val[i], i);
        }
      } else if (typeof val === 'number') {
        ret = new Array(val);
        for (i = 0; i < val; i++) {
          ret[i] = render(i + 1, i);
        }
      } else if (isObject(val)) {
        if (hasSymbol && val[Symbol.iterator]) {
          ret = [];
          var iterator = val[Symbol.iterator]();
          var result = iterator.next();
          while (!result.done) {
            ret.push(render(result.value, ret.length));
            result = iterator.next();
          }
        } else {
          keys = Object.keys(val);
          ret = new Array(keys.length);
          for (i = 0, l = keys.length; i < l; i++) {
            key = keys[i];
            ret[i] = render(val[key], key, i);
          }
        }
      }
      if (!isDef(ret)) {
        ret = [];
      }
      (ret)._isVList = true;
      return ret
    }
  
    /*  */
  
    /**
     * Runtime helper for rendering <slot>
     */
    function renderSlot (
      name,
      fallbackRender,
      props,
      bindObject
    ) {
      var scopedSlotFn = this.$scopedSlots[name];
      var nodes;
      if (scopedSlotFn) {
        // scoped slot
        props = props || {};
        if (bindObject) {
          if (!isObject(bindObject)) {
            warn('slot v-bind without argument expects an Object', this);
          }
          props = extend(extend({}, bindObject), props);
        }
        nodes =
          scopedSlotFn(props) ||
          (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender);
      } else {
        nodes =
          this.$slots[name] ||
          (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender);
      }
  
      var target = props && props.slot;
      if (target) {
        return this.$createElement('template', { slot: target }, nodes)
      } else {
        return nodes
      }
    }
  
    /*  */
  
    /**
     * Runtime helper for resolving filters
     */
    function resolveFilter (id) {
      return resolveAsset(this.$options, 'filters', id, true) || identity
    }
  
    /*  */
  
    function isKeyNotMatch (expect, actual) {
      if (Array.isArray(expect)) {
        return expect.indexOf(actual) === -1
      } else {
        return expect !== actual
      }
    }
  
    /**
     * Runtime helper for checking keyCodes from config.
     * exposed as Vue.prototype._k
     * passing in eventKeyName as last argument separately for backwards compat
     */
    function checkKeyCodes (
      eventKeyCode,
      key,
      builtInKeyCode,
      eventKeyName,
      builtInKeyName
    ) {
      var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
      if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
        return isKeyNotMatch(builtInKeyName, eventKeyName)
      } else if (mappedKeyCode) {
        return isKeyNotMatch(mappedKeyCode, eventKeyCode)
      } else if (eventKeyName) {
        return hyphenate(eventKeyName) !== key
      }
      return eventKeyCode === undefined
    }
  
    /*  */
  
    /**
     * Runtime helper for merging v-bind="object" into a VNode's data.
     */
    function bindObjectProps (
      data,
      tag,
      value,
      asProp,
      isSync
    ) {
      if (value) {
        if (!isObject(value)) {
          warn(
            'v-bind without argument expects an Object or Array value',
            this
          );
        } else {
          if (Array.isArray(value)) {
            value = toObject(value);
          }
          var hash;
          var loop = function ( key ) {
            if (
              key === 'class' ||
              key === 'style' ||
              isReservedAttribute(key)
            ) {
              hash = data;
            } else {
              var type = data.attrs && data.attrs.type;
              hash = asProp || config.mustUseProp(tag, type, key)
                ? data.domProps || (data.domProps = {})
                : data.attrs || (data.attrs = {});
            }
            var camelizedKey = camelize(key);
            var hyphenatedKey = hyphenate(key);
            if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
              hash[key] = value[key];
  
              if (isSync) {
                var on = data.on || (data.on = {});
                on[("update:" + key)] = function ($event) {
                  value[key] = $event;
                };
              }
            }
          };
  
          for (var key in value) loop( key );
        }
      }
      return data
    }
  
    /*  */
  
    /**
     * Runtime helper for rendering static trees.
     */
    function renderStatic (
      index,
      isInFor
    ) {
      var cached = this._staticTrees || (this._staticTrees = []);
      var tree = cached[index];
      // if has already-rendered static tree and not inside v-for,
      // we can reuse the same tree.
      if (tree && !isInFor) {
        return tree
      }
      // otherwise, render a fresh tree.
      tree = cached[index] = this.$options.staticRenderFns[index].call(
        this._renderProxy,
        null,
        this // for render fns generated for functional component templates
      );
      markStatic(tree, ("__static__" + index), false);
      return tree
    }
  
    /**
     * Runtime helper for v-once.
     * Effectively it means marking the node as static with a unique key.
     */
    function markOnce (
      tree,
      index,
      key
    ) {
      markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
      return tree
    }
  
    function markStatic (
      tree,
      key,
      isOnce
    ) {
      if (Array.isArray(tree)) {
        for (var i = 0; i < tree.length; i++) {
          if (tree[i] && typeof tree[i] !== 'string') {
            markStaticNode(tree[i], (key + "_" + i), isOnce);
          }
        }
      } else {
        markStaticNode(tree, key, isOnce);
      }
    }
  
    function markStaticNode (node, key, isOnce) {
      node.isStatic = true;
      node.key = key;
      node.isOnce = isOnce;
    }
  
    /*  */
  
    function bindObjectListeners (data, value) {
      if (value) {
        if (!isPlainObject(value)) {
          warn(
            'v-on without argument expects an Object value',
            this
          );
        } else {
          var on = data.on = data.on ? extend({}, data.on) : {};
          for (var key in value) {
            var existing = on[key];
            var ours = value[key];
            on[key] = existing ? [].concat(existing, ours) : ours;
          }
        }
      }
      return data
    }
  
    /*  */
  
    function resolveScopedSlots (
      fns, // see flow/vnode
      res,
      // the following are added in 2.6
      hasDynamicKeys,
      contentHashKey
    ) {
      res = res || { $stable: !hasDynamicKeys };
      for (var i = 0; i < fns.length; i++) {
        var slot = fns[i];
        if (Array.isArray(slot)) {
          resolveScopedSlots(slot, res, hasDynamicKeys);
        } else if (slot) {
          // marker for reverse proxying v-slot without scope on this.$slots
          if (slot.proxy) {
            slot.fn.proxy = true;
          }
          res[slot.key] = slot.fn;
        }
      }
      if (contentHashKey) {
        (res).$key = contentHashKey;
      }
      return res
    }
  
    /*  */
  
    function bindDynamicKeys (baseObj, values) {
      for (var i = 0; i < values.length; i += 2) {
        var key = values[i];
        if (typeof key === 'string' && key) {
          baseObj[values[i]] = values[i + 1];
        } else if (key !== '' && key !== null) {
          // null is a special value for explicitly removing a binding
          warn(
            ("Invalid value for dynamic directive argument (expected string or null): " + key),
            this
          );
        }
      }
      return baseObj
    }
  
    // helper to dynamically append modifier runtime markers to event names.
    // ensure only append when value is already string, otherwise it will be cast
    // to string and cause the type check to miss.
    function prependModifier (value, symbol) {
      return typeof value === 'string' ? symbol + value : value
    }
  
    /*  */
  
    function installRenderHelpers (target) {
      target._o = markOnce;
      target._n = toNumber;
      target._s = toString;
      target._l = renderList;
      target._t = renderSlot;
      target._q = looseEqual;
      target._i = looseIndexOf;
      target._m = renderStatic;
      target._f = resolveFilter;
      target._k = checkKeyCodes;
      target._b = bindObjectProps;
      target._v = createTextVNode;
      target._e = createEmptyVNode;
      target._u = resolveScopedSlots;
      target._g = bindObjectListeners;
      target._d = bindDynamicKeys;
      target._p = prependModifier;
    }
  
    /*  */
  
    function FunctionalRenderContext (
      data,
      props,
      children,
      parent,
      Ctor
    ) {
      var this$1 = this;
  
      var options = Ctor.options;
      // ensure the createElement function in functional components
      // gets a unique context - this is necessary for correct named slot check
      var contextVm;
      if (hasOwn(parent, '_uid')) {
        contextVm = Object.create(parent);
        // $flow-disable-line
        contextVm._original = parent;
      } else {
        // the context vm passed in is a functional context as well.
        // in this case we want to make sure we are able to get a hold to the
        // real context instance.
        contextVm = parent;
        // $flow-disable-line
        parent = parent._original;
      }
      var isCompiled = isTrue(options._compiled);
      var needNormalization = !isCompiled;
  
      this.data = data;
      this.props = props;
      this.children = children;
      this.parent = parent;
      this.listeners = data.on || emptyObject;
      this.injections = resolveInject(options.inject, parent);
      this.slots = function () {
        if (!this$1.$slots) {
          normalizeScopedSlots(
            data.scopedSlots,
            this$1.$slots = resolveSlots(children, parent)
          );
        }
        return this$1.$slots
      };
  
      Object.defineProperty(this, 'scopedSlots', ({
        enumerable: true,
        get: function get () {
          return normalizeScopedSlots(data.scopedSlots, this.slots())
        }
      }));
  
      // support for compiled functional template
      if (isCompiled) {
        // exposing $options for renderStatic()
        this.$options = options;
        // pre-resolve slots for renderSlot()
        this.$slots = this.slots();
        this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
      }
  
      if (options._scopeId) {
        this._c = function (a, b, c, d) {
          var vnode = createElement(contextVm, a, b, c, d, needNormalization);
          if (vnode && !Array.isArray(vnode)) {
            vnode.fnScopeId = options._scopeId;
            vnode.fnContext = parent;
          }
          return vnode
        };
      } else {
        this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
      }
    }
  
    installRenderHelpers(FunctionalRenderContext.prototype);
  
    function createFunctionalComponent (
      Ctor,
      propsData,
      data,
      contextVm,
      children
    ) {
      var options = Ctor.options;
      var props = {};
      var propOptions = options.props;
      if (isDef(propOptions)) {
        for (var key in propOptions) {
          props[key] = validateProp(key, propOptions, propsData || emptyObject);
        }
      } else {
        if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
        if (isDef(data.props)) { mergeProps(props, data.props); }
      }
  
      var renderContext = new FunctionalRenderContext(
        data,
        props,
        children,
        contextVm,
        Ctor
      );
  
      var vnode = options.render.call(null, renderContext._c, renderContext);
  
      if (vnode instanceof VNode) {
        return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
      } else if (Array.isArray(vnode)) {
        var vnodes = normalizeChildren(vnode) || [];
        var res = new Array(vnodes.length);
        for (var i = 0; i < vnodes.length; i++) {
          res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
        }
        return res
      }
    }
  
    function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
      // #7817 clone node before setting fnContext, otherwise if the node is reused
      // (e.g. it was from a cached normal slot) the fnContext causes named slots
      // that should not be matched to match.
      var clone = cloneVNode(vnode);
      clone.fnContext = contextVm;
      clone.fnOptions = options;
      {
        (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
      }
      if (data.slot) {
        (clone.data || (clone.data = {})).slot = data.slot;
      }
      return clone
    }
  
    function mergeProps (to, from) {
      for (var key in from) {
        to[camelize(key)] = from[key];
      }
    }
  
    /*  */
  
    /*  */
  
    /*  */
  
    /*  */
  
    // inline hooks to be invoked on component VNodes during patch
    var componentVNodeHooks = {
      init: function init (vnode, hydrating) {
        if (
          vnode.componentInstance &&
          !vnode.componentInstance._isDestroyed &&
          vnode.data.keepAlive
        ) {
          // kept-alive components, treat as a patch
          var mountedNode = vnode; // work around flow
          componentVNodeHooks.prepatch(mountedNode, mountedNode);
        } else {
          var child = vnode.componentInstance = createComponentInstanceForVnode(
            vnode,
            activeInstance
          );
          child.$mount(hydrating ? vnode.elm : undefined, hydrating);
        }
      },
  
      prepatch: function prepatch (oldVnode, vnode) {
        var options = vnode.componentOptions;
        var child = vnode.componentInstance = oldVnode.componentInstance;
        updateChildComponent(
          child,
          options.propsData, // updated props
          options.listeners, // updated listeners
          vnode, // new parent vnode
          options.children // new children
        );
      },
  
      insert: function insert (vnode) {
        var context = vnode.context;
        var componentInstance = vnode.componentInstance;
        if (!componentInstance._isMounted) {
          componentInstance._isMounted = true;
          callHook(componentInstance, 'mounted');
        }
        if (vnode.data.keepAlive) {
          if (context._isMounted) {
            // vue-router#1212
            // During updates, a kept-alive component's child components may
            // change, so directly walking the tree here may call activated hooks
            // on incorrect children. Instead we push them into a queue which will
            // be processed after the whole patch process ended.
            queueActivatedComponent(componentInstance);
          } else {
            activateChildComponent(componentInstance, true /* direct */);
          }
        }
      },
  
      destroy: function destroy (vnode) {
        var componentInstance = vnode.componentInstance;
        if (!componentInstance._isDestroyed) {
          if (!vnode.data.keepAlive) {
            componentInstance.$destroy();
          } else {
            deactivateChildComponent(componentInstance, true /* direct */);
          }
        }
      }
    };
  
    var hooksToMerge = Object.keys(componentVNodeHooks);
  
    function createComponent (
      Ctor,
      data,
      context,
      children,
      tag
    ) {
      if (isUndef(Ctor)) {
        return
      }
  
      var baseCtor = context.$options._base;
  
      // plain options object: turn it into a constructor
      if (isObject(Ctor)) {
        Ctor = baseCtor.extend(Ctor);
      }
  
      // if at this stage it's not a constructor or an async component factory,
      // reject.
      if (typeof Ctor !== 'function') {
        {
          warn(("Invalid Component definition: " + (String(Ctor))), context);
        }
        return
      }
  
      // async component
      var asyncFactory;
      if (isUndef(Ctor.cid)) {
        asyncFactory = Ctor;
        Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
        if (Ctor === undefined) {
          // return a placeholder node for async component, which is rendered
          // as a comment node but preserves all the raw information for the node.
          // the information will be used for async server-rendering and hydration.
          return createAsyncPlaceholder(
            asyncFactory,
            data,
            context,
            children,
            tag
          )
        }
      }
  
      data = data || {};
  
      // resolve constructor options in case global mixins are applied after
      // component constructor creation
      resolveConstructorOptions(Ctor);
  
      // transform component v-model data into props & events
      if (isDef(data.model)) {
        transformModel(Ctor.options, data);
      }
  
      // extract props
      var propsData = extractPropsFromVNodeData(data, Ctor, tag);
  
      // functional component
      if (isTrue(Ctor.options.functional)) {
        return createFunctionalComponent(Ctor, propsData, data, context, children)
      }
  
      // extract listeners, since these needs to be treated as
      // child component listeners instead of DOM listeners
      var listeners = data.on;
      // replace with listeners with .native modifier
      // so it gets processed during parent component patch.
      data.on = data.nativeOn;
  
      if (isTrue(Ctor.options.abstract)) {
        // abstract components do not keep anything
        // other than props & listeners & slot
  
        // work around flow
        var slot = data.slot;
        data = {};
        if (slot) {
          data.slot = slot;
        }
      }
  
      // install component management hooks onto the placeholder node
      installComponentHooks(data);
  
      // return a placeholder vnode
      var name = Ctor.options.name || tag;
      var vnode = new VNode(
        ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
        data, undefined, undefined, undefined, context,
        { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
        asyncFactory
      );
  
      return vnode
    }
  
    function createComponentInstanceForVnode (
      // we know it's MountedComponentVNode but flow doesn't
      vnode,
      // activeInstance in lifecycle state
      parent
    ) {
      var options = {
        _isComponent: true,
        _parentVnode: vnode,
        parent: parent
      };
      // check inline-template render functions
      var inlineTemplate = vnode.data.inlineTemplate;
      if (isDef(inlineTemplate)) {
        options.render = inlineTemplate.render;
        options.staticRenderFns = inlineTemplate.staticRenderFns;
      }
      return new vnode.componentOptions.Ctor(options)
    }
  
    function installComponentHooks (data) {
      var hooks = data.hook || (data.hook = {});
      for (var i = 0; i < hooksToMerge.length; i++) {
        var key = hooksToMerge[i];
        var existing = hooks[key];
        var toMerge = componentVNodeHooks[key];
        if (existing !== toMerge && !(existing && existing._merged)) {
          hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
        }
      }
    }
  
    function mergeHook$1 (f1, f2) {
      var merged = function (a, b) {
        // flow complains about extra args which is why we use any
        f1(a, b);
        f2(a, b);
      };
      merged._merged = true;
      return merged
    }
  
    // transform component v-model info (value and callback) into
    // prop and event handler respectively.
    function transformModel (options, data) {
      var prop = (options.model && options.model.prop) || 'value';
      var event = (options.model && options.model.event) || 'input'
      ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
      var on = data.on || (data.on = {});
      var existing = on[event];
      var callback = data.model.callback;
      if (isDef(existing)) {
        if (
          Array.isArray(existing)
            ? existing.indexOf(callback) === -1
            : existing !== callback
        ) {
          on[event] = [callback].concat(existing);
        }
      } else {
        on[event] = callback;
      }
    }
  
    /*  */
  
    var SIMPLE_NORMALIZE = 1;
    var ALWAYS_NORMALIZE = 2;
  
    // wrapper function for providing a more flexible interface
    // without getting yelled at by flow
    function createElement (
      context,
      tag,
      data,
      children,
      normalizationType,
      alwaysNormalize
    ) {
      if (Array.isArray(data) || isPrimitive(data)) {
        normalizationType = children;
        children = data;
        data = undefined;
      }
      if (isTrue(alwaysNormalize)) {
        normalizationType = ALWAYS_NORMALIZE;
      }
      return _createElement(context, tag, data, children, normalizationType)
    }
  
    function _createElement (
      context,
      tag,
      data,
      children,
      normalizationType
    ) {
      if (isDef(data) && isDef((data).__ob__)) {
        warn(
          "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
          'Always create fresh vnode data objects in each render!',
          context
        );
        return createEmptyVNode()
      }
      // object syntax in v-bind
      if (isDef(data) && isDef(data.is)) {
        tag = data.is;
      }
      if (!tag) {
        // in case of component :is set to falsy value
        return createEmptyVNode()
      }
      // warn against non-primitive key
      if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
      ) {
        {
          warn(
            'Avoid using non-primitive value as key, ' +
            'use string/number value instead.',
            context
          );
        }
      }
      // support single function children as default scoped slot
      if (Array.isArray(children) &&
        typeof children[0] === 'function'
      ) {
        data = data || {};
        data.scopedSlots = { default: children[0] };
        children.length = 0;
      }
      if (normalizationType === ALWAYS_NORMALIZE) {
        children = normalizeChildren(children);
      } else if (normalizationType === SIMPLE_NORMALIZE) {
        children = simpleNormalizeChildren(children);
      }
      var vnode, ns;
      if (typeof tag === 'string') {
        var Ctor;
        ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
        if (config.isReservedTag(tag)) {
          // platform built-in elements
          if (isDef(data) && isDef(data.nativeOn) && data.tag !== 'component') {
            warn(
              ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."),
              context
            );
          }
          vnode = new VNode(
            config.parsePlatformTagName(tag), data, children,
            undefined, undefined, context
          );
        } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
          // component
          vnode = createComponent(Ctor, data, context, children, tag);
        } else {
          // unknown or unlisted namespaced elements
          // check at runtime because it may get assigned a namespace when its
          // parent normalizes children
          vnode = new VNode(
            tag, data, children,
            undefined, undefined, context
          );
        }
      } else {
        // direct component options / constructor
        vnode = createComponent(tag, data, context, children);
      }
      if (Array.isArray(vnode)) {
        return vnode
      } else if (isDef(vnode)) {
        if (isDef(ns)) { applyNS(vnode, ns); }
        if (isDef(data)) { registerDeepBindings(data); }
        return vnode
      } else {
        return createEmptyVNode()
      }
    }
  
    function applyNS (vnode, ns, force) {
      vnode.ns = ns;
      if (vnode.tag === 'foreignObject') {
        // use default namespace inside foreignObject
        ns = undefined;
        force = true;
      }
      if (isDef(vnode.children)) {
        for (var i = 0, l = vnode.children.length; i < l; i++) {
          var child = vnode.children[i];
          if (isDef(child.tag) && (
            isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
            applyNS(child, ns, force);
          }
        }
      }
    }
  
    // ref #5318
    // necessary to ensure parent re-render when deep bindings like :style and
    // :class are used on slot nodes
    function registerDeepBindings (data) {
      if (isObject(data.style)) {
        traverse(data.style);
      }
      if (isObject(data.class)) {
        traverse(data.class);
      }
    }
  
    /*  */
  
    function initRender (vm) {
      vm._vnode = null; // the root of the child tree
      vm._staticTrees = null; // v-once cached trees
      var options = vm.$options;
      var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
      var renderContext = parentVnode && parentVnode.context;
      vm.$slots = resolveSlots(options._renderChildren, renderContext);
      vm.$scopedSlots = emptyObject;
      // bind the createElement fn to this instance
      // so that we get proper render context inside it.
      // args order: tag, data, children, normalizationType, alwaysNormalize
      // internal version is used by render functions compiled from templates
      vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
      // normalization is always applied for the public version, used in
      // user-written render functions.
      vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
  
      // $attrs & $listeners are exposed for easier HOC creation.
      // they need to be reactive so that HOCs using them are always updated
      var parentData = parentVnode && parentVnode.data;
  
      /* istanbul ignore else */
      {
        defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
          !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
        }, true);
        defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
          !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
        }, true);
      }
    }
  
    var currentRenderingInstance = null;
  
    function renderMixin (Vue) {
      // install runtime convenience helpers
      installRenderHelpers(Vue.prototype);
  
      Vue.prototype.$nextTick = function (fn) {
        return nextTick(fn, this)
      };
  
      Vue.prototype._render = function () {
        var vm = this;
        var ref = vm.$options;
        var render = ref.render;
        var _parentVnode = ref._parentVnode;
  
        if (_parentVnode) {
          vm.$scopedSlots = normalizeScopedSlots(
            _parentVnode.data.scopedSlots,
            vm.$slots,
            vm.$scopedSlots
          );
        }
  
        // set parent vnode. this allows render functions to have access
        // to the data on the placeholder node.
        vm.$vnode = _parentVnode;
        // render self
        var vnode;
        try {
          // There's no need to maintain a stack because all render fns are called
          // separately from one another. Nested component's render fns are called
          // when parent component is patched.
          currentRenderingInstance = vm;
          vnode = render.call(vm._renderProxy, vm.$createElement);
        } catch (e) {
          handleError(e, vm, "render");
          // return error render result,
          // or previous vnode to prevent render error causing blank component
          /* istanbul ignore else */
          if (vm.$options.renderError) {
            try {
              vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
            } catch (e) {
              handleError(e, vm, "renderError");
              vnode = vm._vnode;
            }
          } else {
            vnode = vm._vnode;
          }
        } finally {
          currentRenderingInstance = null;
        }
        // if the returned array contains only a single node, allow it
        if (Array.isArray(vnode) && vnode.length === 1) {
          vnode = vnode[0];
        }
        // return empty vnode in case the render function errored out
        if (!(vnode instanceof VNode)) {
          if (Array.isArray(vnode)) {
            warn(
              'Multiple root nodes returned from render function. Render function ' +
              'should return a single root node.',
              vm
            );
          }
          vnode = createEmptyVNode();
        }
        // set parent
        vnode.parent = _parentVnode;
        return vnode
      };
    }
  
    /*  */
  
    function ensureCtor (comp, base) {
      if (
        comp.__esModule ||
        (hasSymbol && comp[Symbol.toStringTag] === 'Module')
      ) {
        comp = comp.default;
      }
      return isObject(comp)
        ? base.extend(comp)
        : comp
    }
  
    function createAsyncPlaceholder (
      factory,
      data,
      context,
      children,
      tag
    ) {
      var node = createEmptyVNode();
      node.asyncFactory = factory;
      node.asyncMeta = { data: data, context: context, children: children, tag: tag };
      return node
    }
  
    function resolveAsyncComponent (
      factory,
      baseCtor
    ) {
      if (isTrue(factory.error) && isDef(factory.errorComp)) {
        return factory.errorComp
      }
  
      if (isDef(factory.resolved)) {
        return factory.resolved
      }
  
      var owner = currentRenderingInstance;
      if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
        // already pending
        factory.owners.push(owner);
      }
  
      if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
        return factory.loadingComp
      }
  
      if (owner && !isDef(factory.owners)) {
        var owners = factory.owners = [owner];
        var sync = true;
        var timerLoading = null;
        var timerTimeout = null
  
        ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
  
        var forceRender = function (renderCompleted) {
          for (var i = 0, l = owners.length; i < l; i++) {
            (owners[i]).$forceUpdate();
          }
  
          if (renderCompleted) {
            owners.length = 0;
            if (timerLoading !== null) {
              clearTimeout(timerLoading);
              timerLoading = null;
            }
            if (timerTimeout !== null) {
              clearTimeout(timerTimeout);
              timerTimeout = null;
            }
          }
        };
  
        var resolve = once(function (res) {
          // cache resolved
          factory.resolved = ensureCtor(res, baseCtor);
          // invoke callbacks only if this is not a synchronous resolve
          // (async resolves are shimmed as synchronous during SSR)
          if (!sync) {
            forceRender(true);
          } else {
            owners.length = 0;
          }
        });
  
        var reject = once(function (reason) {
          warn(
            "Failed to resolve async component: " + (String(factory)) +
            (reason ? ("\nReason: " + reason) : '')
          );
          if (isDef(factory.errorComp)) {
            factory.error = true;
            forceRender(true);
          }
        });
  
        var res = factory(resolve, reject);
  
        if (isObject(res)) {
          if (isPromise(res)) {
            // () => Promise
            if (isUndef(factory.resolved)) {
              res.then(resolve, reject);
            }
          } else if (isPromise(res.component)) {
            res.component.then(resolve, reject);
  
            if (isDef(res.error)) {
              factory.errorComp = ensureCtor(res.error, baseCtor);
            }
  
            if (isDef(res.loading)) {
              factory.loadingComp = ensureCtor(res.loading, baseCtor);
              if (res.delay === 0) {
                factory.loading = true;
              } else {
                timerLoading = setTimeout(function () {
                  timerLoading = null;
                  if (isUndef(factory.resolved) && isUndef(factory.error)) {
                    factory.loading = true;
                    forceRender(false);
                  }
                }, res.delay || 200);
              }
            }
  
            if (isDef(res.timeout)) {
              timerTimeout = setTimeout(function () {
                timerTimeout = null;
                if (isUndef(factory.resolved)) {
                  reject(
                    "timeout (" + (res.timeout) + "ms)"
                  );
                }
              }, res.timeout);
            }
          }
        }
  
        sync = false;
        // return in case resolved synchronously
        return factory.loading
          ? factory.loadingComp
          : factory.resolved
      }
    }
  
    /*  */
  
    function getFirstComponentChild (children) {
      if (Array.isArray(children)) {
        for (var i = 0; i < children.length; i++) {
          var c = children[i];
          if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
            return c
          }
        }
      }
    }
  
    /*  */
  
    /*  */
  
    function initEvents (vm) {
      vm._events = Object.create(null);
      vm._hasHookEvent = false;
      // init parent attached events
      var listeners = vm.$options._parentListeners;
      if (listeners) {
        updateComponentListeners(vm, listeners);
      }
    }
  
    var target;
  
    function add (event, fn) {
      target.$on(event, fn);
    }
  
    function remove$1 (event, fn) {
      target.$off(event, fn);
    }
  
    function createOnceHandler (event, fn) {
      var _target = target;
      return function onceHandler () {
        var res = fn.apply(null, arguments);
        if (res !== null) {
          _target.$off(event, onceHandler);
        }
      }
    }
  
    function updateComponentListeners (
      vm,
      listeners,
      oldListeners
    ) {
      target = vm;
      updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
      target = undefined;
    }
  
    function eventsMixin (Vue) {
      var hookRE = /^hook:/;
      Vue.prototype.$on = function (event, fn) {
        var vm = this;
        if (Array.isArray(event)) {
          for (var i = 0, l = event.length; i < l; i++) {
            vm.$on(event[i], fn);
          }
        } else {
          (vm._events[event] || (vm._events[event] = [])).push(fn);
          // optimize hook:event cost by using a boolean flag marked at registration
          // instead of a hash lookup
          if (hookRE.test(event)) {
            vm._hasHookEvent = true;
          }
        }
        return vm
      };
  
      Vue.prototype.$once = function (event, fn) {
        var vm = this;
        function on () {
          vm.$off(event, on);
          fn.apply(vm, arguments);
        }
        on.fn = fn;
        vm.$on(event, on);
        return vm
      };
  
      Vue.prototype.$off = function (event, fn) {
        var vm = this;
        // all
        if (!arguments.length) {
          vm._events = Object.create(null);
          return vm
        }
        // array of events
        if (Array.isArray(event)) {
          for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
            vm.$off(event[i$1], fn);
          }
          return vm
        }
        // specific event
        var cbs = vm._events[event];
        if (!cbs) {
          return vm
        }
        if (!fn) {
          vm._events[event] = null;
          return vm
        }
        // specific handler
        var cb;
        var i = cbs.length;
        while (i--) {
          cb = cbs[i];
          if (cb === fn || cb.fn === fn) {
            cbs.splice(i, 1);
            break
          }
        }
        return vm
      };
  
      Vue.prototype.$emit = function (event) {
        var vm = this;
        {
          var lowerCaseEvent = event.toLowerCase();
          if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
            tip(
              "Event \"" + lowerCaseEvent + "\" is emitted in component " +
              (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
              "Note that HTML attributes are case-insensitive and you cannot use " +
              "v-on to listen to camelCase events when using in-DOM templates. " +
              "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
            );
          }
        }
        var cbs = vm._events[event];
        if (cbs) {
          cbs = cbs.length > 1 ? toArray(cbs) : cbs;
          var args = toArray(arguments, 1);
          var info = "event handler for \"" + event + "\"";
          for (var i = 0, l = cbs.length; i < l; i++) {
            invokeWithErrorHandling(cbs[i], vm, args, vm, info);
          }
        }
        return vm
      };
    }
  
    /*  */
  
    var activeInstance = null;
    var isUpdatingChildComponent = false;
  
    function setActiveInstance(vm) {
      var prevActiveInstance = activeInstance;
      activeInstance = vm;
      return function () {
        activeInstance = prevActiveInstance;
      }
    }
  
    function initLifecycle (vm) {
      var options = vm.$options;
  
      // locate first non-abstract parent
      var parent = options.parent;
      if (parent && !options.abstract) {
        while (parent.$options.abstract && parent.$parent) {
          parent = parent.$parent;
        }
        parent.$children.push(vm);
      }
  
      vm.$parent = parent;
      vm.$root = parent ? parent.$root : vm;
  
      vm.$children = [];
      vm.$refs = {};
  
      vm._watcher = null;
      vm._inactive = null;
      vm._directInactive = false;
      vm._isMounted = false;
      vm._isDestroyed = false;
      vm._isBeingDestroyed = false;
    }
  
    function lifecycleMixin (Vue) {
      Vue.prototype._update = function (vnode, hydrating) {
        var vm = this;
        var prevEl = vm.$el;
        var prevVnode = vm._vnode;
        var restoreActiveInstance = setActiveInstance(vm);
        vm._vnode = vnode;
        // Vue.prototype.__patch__ is injected in entry points
        // based on the rendering backend used.
        if (!prevVnode) {
          // initial render
          vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
        } else {
          // updates
          vm.$el = vm.__patch__(prevVnode, vnode);
        }
        restoreActiveInstance();
        // update __vue__ reference
        if (prevEl) {
          prevEl.__vue__ = null;
        }
        if (vm.$el) {
          vm.$el.__vue__ = vm;
        }
        // if parent is an HOC, update its $el as well
        if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
          vm.$parent.$el = vm.$el;
        }
        // updated hook is called by the scheduler to ensure that children are
        // updated in a parent's updated hook.
      };
  
      Vue.prototype.$forceUpdate = function () {
        var vm = this;
        if (vm._watcher) {
          vm._watcher.update();
        }
      };
  
      Vue.prototype.$destroy = function () {
        var vm = this;
        if (vm._isBeingDestroyed) {
          return
        }
        callHook(vm, 'beforeDestroy');
        vm._isBeingDestroyed = true;
        // remove self from parent
        var parent = vm.$parent;
        if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
          remove(parent.$children, vm);
        }
        // teardown watchers
        if (vm._watcher) {
          vm._watcher.teardown();
        }
        var i = vm._watchers.length;
        while (i--) {
          vm._watchers[i].teardown();
        }
        // remove reference from data ob
        // frozen object may not have observer.
        if (vm._data.__ob__) {
          vm._data.__ob__.vmCount--;
        }
        // call the last hook...
        vm._isDestroyed = true;
        // invoke destroy hooks on current rendered tree
        vm.__patch__(vm._vnode, null);
        // fire destroyed hook
        callHook(vm, 'destroyed');
        // turn off all instance listeners.
        vm.$off();
        // remove __vue__ reference
        if (vm.$el) {
          vm.$el.__vue__ = null;
        }
        // release circular reference (#6759)
        if (vm.$vnode) {
          vm.$vnode.parent = null;
        }
      };
    }
  
    function mountComponent (
      vm,
      el,
      hydrating
    ) {
      vm.$el = el;
      if (!vm.$options.render) {
        vm.$options.render = createEmptyVNode;
        {
          /* istanbul ignore if */
          if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
            vm.$options.el || el) {
            warn(
              'You are using the runtime-only build of Vue where the template ' +
              'compiler is not available. Either pre-compile the templates into ' +
              'render functions, or use the compiler-included build.',
              vm
            );
          } else {
            warn(
              'Failed to mount component: template or render function not defined.',
              vm
            );
          }
        }
      }
      callHook(vm, 'beforeMount');
  
      var updateComponent;
      /* istanbul ignore if */
      if (config.performance && mark) {
        updateComponent = function () {
          var name = vm._name;
          var id = vm._uid;
          var startTag = "vue-perf-start:" + id;
          var endTag = "vue-perf-end:" + id;
  
          mark(startTag);
          var vnode = vm._render();
          mark(endTag);
          measure(("vue " + name + " render"), startTag, endTag);
  
          mark(startTag);
          vm._update(vnode, hydrating);
          mark(endTag);
          measure(("vue " + name + " patch"), startTag, endTag);
        };
      } else {
        updateComponent = function () {
          vm._update(vm._render(), hydrating);
        };
      }
  
      // we set this to vm._watcher inside the watcher's constructor
      // since the watcher's initial patch may call $forceUpdate (e.g. inside child
      // component's mounted hook), which relies on vm._watcher being already defined
      new Watcher(vm, updateComponent, noop, {
        before: function before () {
          if (vm._isMounted && !vm._isDestroyed) {
            callHook(vm, 'beforeUpdate');
          }
        }
      }, true /* isRenderWatcher */);
      hydrating = false;
  
      // manually mounted instance, call mounted on self
      // mounted is called for render-created child components in its inserted hook
      if (vm.$vnode == null) {
        vm._isMounted = true;
        callHook(vm, 'mounted');
      }
      return vm
    }
  
    function updateChildComponent (
      vm,
      propsData,
      listeners,
      parentVnode,
      renderChildren
    ) {
      {
        isUpdatingChildComponent = true;
      }
  
      // determine whether component has slot children
      // we need to do this before overwriting $options._renderChildren.
  
      // check if there are dynamic scopedSlots (hand-written or compiled but with
      // dynamic slot names). Static scoped slots compiled from template has the
      // "$stable" marker.
      var newScopedSlots = parentVnode.data.scopedSlots;
      var oldScopedSlots = vm.$scopedSlots;
      var hasDynamicScopedSlot = !!(
        (newScopedSlots && !newScopedSlots.$stable) ||
        (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
        (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key) ||
        (!newScopedSlots && vm.$scopedSlots.$key)
      );
  
      // Any static slot children from the parent may have changed during parent's
      // update. Dynamic scoped slots may also have changed. In such cases, a forced
      // update is necessary to ensure correctness.
      var needsForceUpdate = !!(
        renderChildren ||               // has new static slots
        vm.$options._renderChildren ||  // has old static slots
        hasDynamicScopedSlot
      );
  
      vm.$options._parentVnode = parentVnode;
      vm.$vnode = parentVnode; // update vm's placeholder node without re-render
  
      if (vm._vnode) { // update child tree's parent
        vm._vnode.parent = parentVnode;
      }
      vm.$options._renderChildren = renderChildren;
  
      // update $attrs and $listeners hash
      // these are also reactive so they may trigger child update if the child
      // used them during render
      vm.$attrs = parentVnode.data.attrs || emptyObject;
      vm.$listeners = listeners || emptyObject;
  
      // update props
      if (propsData && vm.$options.props) {
        toggleObserving(false);
        var props = vm._props;
        var propKeys = vm.$options._propKeys || [];
        for (var i = 0; i < propKeys.length; i++) {
          var key = propKeys[i];
          var propOptions = vm.$options.props; // wtf flow?
          props[key] = validateProp(key, propOptions, propsData, vm);
        }
        toggleObserving(true);
        // keep a copy of raw propsData
        vm.$options.propsData = propsData;
      }
  
      // update listeners
      listeners = listeners || emptyObject;
      var oldListeners = vm.$options._parentListeners;
      vm.$options._parentListeners = listeners;
      updateComponentListeners(vm, listeners, oldListeners);
  
      // resolve slots + force update if has children
      if (needsForceUpdate) {
        vm.$slots = resolveSlots(renderChildren, parentVnode.context);
        vm.$forceUpdate();
      }
  
      {
        isUpdatingChildComponent = false;
      }
    }
  
    function isInInactiveTree (vm) {
      while (vm && (vm = vm.$parent)) {
        if (vm._inactive) { return true }
      }
      return false
    }
  
    function activateChildComponent (vm, direct) {
      if (direct) {
        vm._directInactive = false;
        if (isInInactiveTree(vm)) {
          return
        }
      } else if (vm._directInactive) {
        return
      }
      if (vm._inactive || vm._inactive === null) {
        vm._inactive = false;
        for (var i = 0; i < vm.$children.length; i++) {
          activateChildComponent(vm.$children[i]);
        }
        callHook(vm, 'activated');
      }
    }
  
    function deactivateChildComponent (vm, direct) {
      if (direct) {
        vm._directInactive = true;
        if (isInInactiveTree(vm)) {
          return
        }
      }
      if (!vm._inactive) {
        vm._inactive = true;
        for (var i = 0; i < vm.$children.length; i++) {
          deactivateChildComponent(vm.$children[i]);
        }
        callHook(vm, 'deactivated');
      }
    }
  
    function callHook (vm, hook) {
      // #7573 disable dep collection when invoking lifecycle hooks
      pushTarget();
      var handlers = vm.$options[hook];
      var info = hook + " hook";
      if (handlers) {
        for (var i = 0, j = handlers.length; i < j; i++) {
          invokeWithErrorHandling(handlers[i], vm, null, vm, info);
        }
      }
      if (vm._hasHookEvent) {
        vm.$emit('hook:' + hook);
      }
      popTarget();
    }
  
    /*  */
  
    var MAX_UPDATE_COUNT = 100;
  
    var queue = [];
    var activatedChildren = [];
    var has = {};
    var circular = {};
    var waiting = false;
    var flushing = false;
    var index = 0;
  
    /**
     * Reset the scheduler's state.
     */
    function resetSchedulerState () {
      index = queue.length = activatedChildren.length = 0;
      has = {};
      {
        circular = {};
      }
      waiting = flushing = false;
    }
  
    // Async edge case #6566 requires saving the timestamp when event listeners are
    // attached. However, calling performance.now() has a perf overhead especially
    // if the page has thousands of event listeners. Instead, we take a timestamp
    // every time the scheduler flushes and use that for all event listeners
    // attached during that flush.
    var currentFlushTimestamp = 0;
  
    // Async edge case fix requires storing an event listener's attach timestamp.
    var getNow = Date.now;
  
    // Determine what event timestamp the browser is using. Annoyingly, the
    // timestamp can either be hi-res (relative to page load) or low-res
    // (relative to UNIX epoch), so in order to compare time we have to use the
    // same timestamp type when saving the flush timestamp.
    // All IE versions use low-res event timestamps, and have problematic clock
    // implementations (#9632)
    if (inBrowser && !isIE) {
      var performance = window.performance;
      if (
        performance &&
        typeof performance.now === 'function' &&
        getNow() > document.createEvent('Event').timeStamp
      ) {
        // if the event timestamp, although evaluated AFTER the Date.now(), is
        // smaller than it, it means the event is using a hi-res timestamp,
        // and we need to use the hi-res version for event listener timestamps as
        // well.
        getNow = function () { return performance.now(); };
      }
    }
  
    /**
     * Flush both queues and run the watchers.
     */
    function flushSchedulerQueue () {
      currentFlushTimestamp = getNow();
      flushing = true;
      var watcher, id;
  
      // Sort queue before flush.
      // This ensures that:
      // 1. Components are updated from parent to child. (because parent is always
      //    created before the child)
      // 2. A component's user watchers are run before its render watcher (because
      //    user watchers are created before the render watcher)
      // 3. If a component is destroyed during a parent component's watcher run,
      //    its watchers can be skipped.
      queue.sort(function (a, b) { return a.id - b.id; });
  
      // do not cache length because more watchers might be pushed
      // as we run existing watchers
      for (index = 0; index < queue.length; index++) {
        watcher = queue[index];
        if (watcher.before) {
          watcher.before();
        }
        id = watcher.id;
        has[id] = null;
        watcher.run();
        // in dev build, check and stop circular updates.
        if (has[id] != null) {
          circular[id] = (circular[id] || 0) + 1;
          if (circular[id] > MAX_UPDATE_COUNT) {
            warn(
              'You may have an infinite update loop ' + (
                watcher.user
                  ? ("in watcher with expression \"" + (watcher.expression) + "\"")
                  : "in a component render function."
              ),
              watcher.vm
            );
            break
          }
        }
      }
  
      // keep copies of post queues before resetting state
      var activatedQueue = activatedChildren.slice();
      var updatedQueue = queue.slice();
  
      resetSchedulerState();
  
      // call component updated and activated hooks
      callActivatedHooks(activatedQueue);
      callUpdatedHooks(updatedQueue);
  
      // devtool hook
      /* istanbul ignore if */
      if (devtools && config.devtools) {
        devtools.emit('flush');
      }
    }
  
    function callUpdatedHooks (queue) {
      var i = queue.length;
      while (i--) {
        var watcher = queue[i];
        var vm = watcher.vm;
        if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
          callHook(vm, 'updated');
        }
      }
    }
  
    /**
     * Queue a kept-alive component that was activated during patch.
     * The queue will be processed after the entire tree has been patched.
     */
    function queueActivatedComponent (vm) {
      // setting _inactive to false here so that a render function can
      // rely on checking whether it's in an inactive tree (e.g. router-view)
      vm._inactive = false;
      activatedChildren.push(vm);
    }
  
    function callActivatedHooks (queue) {
      for (var i = 0; i < queue.length; i++) {
        queue[i]._inactive = true;
        activateChildComponent(queue[i], true /* true */);
      }
    }
  
    /**
     * Push a watcher into the watcher queue.
     * Jobs with duplicate IDs will be skipped unless it's
     * pushed when the queue is being flushed.
     */
    function queueWatcher (watcher) {
      var id = watcher.id;
      if (has[id] == null) {
        has[id] = true;
        if (!flushing) {
          queue.push(watcher);
        } else {
          // if already flushing, splice the watcher based on its id
          // if already past its id, it will be run next immediately.
          var i = queue.length - 1;
          while (i > index && queue[i].id > watcher.id) {
            i--;
          }
          queue.splice(i + 1, 0, watcher);
        }
        // queue the flush
        if (!waiting) {
          waiting = true;
  
          if (!config.async) {
            flushSchedulerQueue();
            return
          }
          nextTick(flushSchedulerQueue);
        }
      }
    }
  
    /*  */
  
  
  
    var uid$2 = 0;
  
    /**
     * A watcher parses an expression, collects dependencies,
     * and fires callback when the expression value changes.
     * This is used for both the $watch() api and directives.
     */
    var Watcher = function Watcher (
      vm,
      expOrFn,
      cb,
      options,
      isRenderWatcher
    ) {
      this.vm = vm;
      if (isRenderWatcher) {
        vm._watcher = this;
      }
      vm._watchers.push(this);
      // options
      if (options) {
        this.deep = !!options.deep;
        this.user = !!options.user;
        this.lazy = !!options.lazy;
        this.sync = !!options.sync;
        this.before = options.before;
      } else {
        this.deep = this.user = this.lazy = this.sync = false;
      }
      this.cb = cb;
      this.id = ++uid$2; // uid for batching
      this.active = true;
      this.dirty = this.lazy; // for lazy watchers
      this.deps = [];
      this.newDeps = [];
      this.depIds = new _Set();
      this.newDepIds = new _Set();
      this.expression = expOrFn.toString();
      // parse expression for getter
      if (typeof expOrFn === 'function') {
        this.getter = expOrFn;
      } else {
        this.getter = parsePath(expOrFn);
        if (!this.getter) {
          this.getter = noop;
          warn(
            "Failed watching path: \"" + expOrFn + "\" " +
            'Watcher only accepts simple dot-delimited paths. ' +
            'For full control, use a function instead.',
            vm
          );
        }
      }
      this.value = this.lazy
        ? undefined
        : this.get();
    };
  
    /**
     * Evaluate the getter, and re-collect dependencies.
     */
    Watcher.prototype.get = function get () {
      pushTarget(this);
      var value;
      var vm = this.vm;
      try {
        value = this.getter.call(vm, vm);
      } catch (e) {
        if (this.user) {
          handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
        } else {
          throw e
        }
      } finally {
        // "touch" every property so they are all tracked as
        // dependencies for deep watching
        if (this.deep) {
          traverse(value);
        }
        popTarget();
        this.cleanupDeps();
      }
      return value
    };
  
    /**
     * Add a dependency to this directive.
     */
    Watcher.prototype.addDep = function addDep (dep) {
      var id = dep.id;
      if (!this.newDepIds.has(id)) {
        this.newDepIds.add(id);
        this.newDeps.push(dep);
        if (!this.depIds.has(id)) {
          dep.addSub(this);
        }
      }
    };
  
    /**
     * Clean up for dependency collection.
     */
    Watcher.prototype.cleanupDeps = function cleanupDeps () {
      var i = this.deps.length;
      while (i--) {
        var dep = this.deps[i];
        if (!this.newDepIds.has(dep.id)) {
          dep.removeSub(this);
        }
      }
      var tmp = this.depIds;
      this.depIds = this.newDepIds;
      this.newDepIds = tmp;
      this.newDepIds.clear();
      tmp = this.deps;
      this.deps = this.newDeps;
      this.newDeps = tmp;
      this.newDeps.length = 0;
    };
  
    /**
     * Subscriber interface.
     * Will be called when a dependency changes.
     */
    Watcher.prototype.update = function update () {
      /* istanbul ignore else */
      if (this.lazy) {
        this.dirty = true;
      } else if (this.sync) {
        this.run();
      } else {
        queueWatcher(this);
      }
    };
  
    /**
     * Scheduler job interface.
     * Will be called by the scheduler.
     */
    Watcher.prototype.run = function run () {
      if (this.active) {
        var value = this.get();
        if (
          value !== this.value ||
          // Deep watchers and watchers on Object/Arrays should fire even
          // when the value is the same, because the value may
          // have mutated.
          isObject(value) ||
          this.deep
        ) {
          // set new value
          var oldValue = this.value;
          this.value = value;
          if (this.user) {
            var info = "callback for watcher \"" + (this.expression) + "\"";
            invokeWithErrorHandling(this.cb, this.vm, [value, oldValue], this.vm, info);
          } else {
            this.cb.call(this.vm, value, oldValue);
          }
        }
      }
    };
  
    /**
     * Evaluate the value of the watcher.
     * This only gets called for lazy watchers.
     */
    Watcher.prototype.evaluate = function evaluate () {
      this.value = this.get();
      this.dirty = false;
    };
  
    /**
     * Depend on all deps collected by this watcher.
     */
    Watcher.prototype.depend = function depend () {
      var i = this.deps.length;
      while (i--) {
        this.deps[i].depend();
      }
    };
  
    /**
     * Remove self from all dependencies' subscriber list.
     */
    Watcher.prototype.teardown = function teardown () {
      if (this.active) {
        // remove self from vm's watcher list
        // this is a somewhat expensive operation so we skip it
        // if the vm is being destroyed.
        if (!this.vm._isBeingDestroyed) {
          remove(this.vm._watchers, this);
        }
        var i = this.deps.length;
        while (i--) {
          this.deps[i].removeSub(this);
        }
        this.active = false;
      }
    };
  
    /*  */
  
    var sharedPropertyDefinition = {
      enumerable: true,
      configurable: true,
      get: noop,
      set: noop
    };
  
    function proxy (target, sourceKey, key) {
      sharedPropertyDefinition.get = function proxyGetter () {
        return this[sourceKey][key]
      };
      sharedPropertyDefinition.set = function proxySetter (val) {
        this[sourceKey][key] = val;
      };
      Object.defineProperty(target, key, sharedPropertyDefinition);
    }
  
    function initState (vm) {
      vm._watchers = [];
      var opts = vm.$options;
      if (opts.props) { initProps(vm, opts.props); }
      if (opts.methods) { initMethods(vm, opts.methods); }
      if (opts.data) {
        initData(vm);
      } else {
        observe(vm._data = {}, true /* asRootData */);
      }
      if (opts.computed) { initComputed(vm, opts.computed); }
      if (opts.watch && opts.watch !== nativeWatch) {
        initWatch(vm, opts.watch);
      }
    }
  
    function initProps (vm, propsOptions) {
      var propsData = vm.$options.propsData || {};
      var props = vm._props = {};
      // cache prop keys so that future props updates can iterate using Array
      // instead of dynamic object key enumeration.
      var keys = vm.$options._propKeys = [];
      var isRoot = !vm.$parent;
      // root instance props should be converted
      if (!isRoot) {
        toggleObserving(false);
      }
      var loop = function ( key ) {
        keys.push(key);
        var value = validateProp(key, propsOptions, propsData, vm);
        /* istanbul ignore else */
        {
          var hyphenatedKey = hyphenate(key);
          if (isReservedAttribute(hyphenatedKey) ||
              config.isReservedAttr(hyphenatedKey)) {
            warn(
              ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
              vm
            );
          }
          defineReactive$$1(props, key, value, function () {
            if (!isRoot && !isUpdatingChildComponent) {
              warn(
                "Avoid mutating a prop directly since the value will be " +
                "overwritten whenever the parent component re-renders. " +
                "Instead, use a data or computed property based on the prop's " +
                "value. Prop being mutated: \"" + key + "\"",
                vm
              );
            }
          });
        }
        // static props are already proxied on the component's prototype
        // during Vue.extend(). We only need to proxy props defined at
        // instantiation here.
        if (!(key in vm)) {
          proxy(vm, "_props", key);
        }
      };
  
      for (var key in propsOptions) loop( key );
      toggleObserving(true);
    }
  
    function initData (vm) {
      var data = vm.$options.data;
      data = vm._data = typeof data === 'function'
        ? getData(data, vm)
        : data || {};
      if (!isPlainObject(data)) {
        data = {};
        warn(
          'data functions should return an object:\n' +
          'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
          vm
        );
      }
      // proxy data on instance
      var keys = Object.keys(data);
      var props = vm.$options.props;
      var methods = vm.$options.methods;
      var i = keys.length;
      while (i--) {
        var key = keys[i];
        {
          if (methods && hasOwn(methods, key)) {
            warn(
              ("Method \"" + key + "\" has already been defined as a data property."),
              vm
            );
          }
        }
        if (props && hasOwn(props, key)) {
          warn(
            "The data property \"" + key + "\" is already declared as a prop. " +
            "Use prop default value instead.",
            vm
          );
        } else if (!isReserved(key)) {
          proxy(vm, "_data", key);
        }
      }
      // observe data
      observe(data, true /* asRootData */);
    }
  
    function getData (data, vm) {
      // #7573 disable dep collection when invoking data getters
      pushTarget();
      try {
        return data.call(vm, vm)
      } catch (e) {
        handleError(e, vm, "data()");
        return {}
      } finally {
        popTarget();
      }
    }
  
    var computedWatcherOptions = { lazy: true };
  
    function initComputed (vm, computed) {
      // $flow-disable-line
      var watchers = vm._computedWatchers = Object.create(null);
      // computed properties are just getters during SSR
      var isSSR = isServerRendering();
  
      for (var key in computed) {
        var userDef = computed[key];
        var getter = typeof userDef === 'function' ? userDef : userDef.get;
        if (getter == null) {
          warn(
            ("Getter is missing for computed property \"" + key + "\"."),
            vm
          );
        }
  
        if (!isSSR) {
          // create internal watcher for the computed property.
          watchers[key] = new Watcher(
            vm,
            getter || noop,
            noop,
            computedWatcherOptions
          );
        }
  
        // component-defined computed properties are already defined on the
        // component prototype. We only need to define computed properties defined
        // at instantiation here.
        if (!(key in vm)) {
          defineComputed(vm, key, userDef);
        } else {
          if (key in vm.$data) {
            warn(("The computed property \"" + key + "\" is already defined in data."), vm);
          } else if (vm.$options.props && key in vm.$options.props) {
            warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
          } else if (vm.$options.methods && key in vm.$options.methods) {
            warn(("The computed property \"" + key + "\" is already defined as a method."), vm);
          }
        }
      }
    }
  
    function defineComputed (
      target,
      key,
      userDef
    ) {
      var shouldCache = !isServerRendering();
      if (typeof userDef === 'function') {
        sharedPropertyDefinition.get = shouldCache
          ? createComputedGetter(key)
          : createGetterInvoker(userDef);
        sharedPropertyDefinition.set = noop;
      } else {
        sharedPropertyDefinition.get = userDef.get
          ? shouldCache && userDef.cache !== false
            ? createComputedGetter(key)
            : createGetterInvoker(userDef.get)
          : noop;
        sharedPropertyDefinition.set = userDef.set || noop;
      }
      if (sharedPropertyDefinition.set === noop) {
        sharedPropertyDefinition.set = function () {
          warn(
            ("Computed property \"" + key + "\" was assigned to but it has no setter."),
            this
          );
        };
      }
      Object.defineProperty(target, key, sharedPropertyDefinition);
    }
  
    function createComputedGetter (key) {
      return function computedGetter () {
        var watcher = this._computedWatchers && this._computedWatchers[key];
        if (watcher) {
          if (watcher.dirty) {
            watcher.evaluate();
          }
          if (Dep.target) {
            watcher.depend();
          }
          return watcher.value
        }
      }
    }
  
    function createGetterInvoker(fn) {
      return function computedGetter () {
        return fn.call(this, this)
      }
    }
  
    function initMethods (vm, methods) {
      var props = vm.$options.props;
      for (var key in methods) {
        {
          if (typeof methods[key] !== 'function') {
            warn(
              "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
              "Did you reference the function correctly?",
              vm
            );
          }
          if (props && hasOwn(props, key)) {
            warn(
              ("Method \"" + key + "\" has already been defined as a prop."),
              vm
            );
          }
          if ((key in vm) && isReserved(key)) {
            warn(
              "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
              "Avoid defining component methods that start with _ or $."
            );
          }
        }
        vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
      }
    }
  
    function initWatch (vm, watch) {
      for (var key in watch) {
        var handler = watch[key];
        if (Array.isArray(handler)) {
          for (var i = 0; i < handler.length; i++) {
            createWatcher(vm, key, handler[i]);
          }
        } else {
          createWatcher(vm, key, handler);
        }
      }
    }
  
    function createWatcher (
      vm,
      expOrFn,
      handler,
      options
    ) {
      if (isPlainObject(handler)) {
        options = handler;
        handler = handler.handler;
      }
      if (typeof handler === 'string') {
        handler = vm[handler];
      }
      return vm.$watch(expOrFn, handler, options)
    }
  
    function stateMixin (Vue) {
      // flow somehow has problems with directly declared definition object
      // when using Object.defineProperty, so we have to procedurally build up
      // the object here.
      var dataDef = {};
      dataDef.get = function () { return this._data };
      var propsDef = {};
      propsDef.get = function () { return this._props };
      {
        dataDef.set = function () {
          warn(
            'Avoid replacing instance root $data. ' +
            'Use nested data properties instead.',
            this
          );
        };
        propsDef.set = function () {
          warn("$props is readonly.", this);
        };
      }
      Object.defineProperty(Vue.prototype, '$data', dataDef);
      Object.defineProperty(Vue.prototype, '$props', propsDef);
  
      Vue.prototype.$set = set;
      Vue.prototype.$delete = del;
  
      Vue.prototype.$watch = function (
        expOrFn,
        cb,
        options
      ) {
        var vm = this;
        if (isPlainObject(cb)) {
          return createWatcher(vm, expOrFn, cb, options)
        }
        options = options || {};
        options.user = true;
        var watcher = new Watcher(vm, expOrFn, cb, options);
        if (options.immediate) {
          var info = "callback for immediate watcher \"" + (watcher.expression) + "\"";
          pushTarget();
          invokeWithErrorHandling(cb, vm, [watcher.value], vm, info);
          popTarget();
        }
        return function unwatchFn () {
          watcher.teardown();
        }
      };
    }
  
    /*  */
  
    var uid$3 = 0;
  
    function initMixin (Vue) {
      Vue.prototype._init = function (options) {
        var vm = this;
        // a uid
        vm._uid = uid$3++;
  
        var startTag, endTag;
        /* istanbul ignore if */
        if (config.performance && mark) {
          startTag = "vue-perf-start:" + (vm._uid);
          endTag = "vue-perf-end:" + (vm._uid);
          mark(startTag);
        }
  
        // a flag to avoid this being observed
        vm._isVue = true;
        // merge options
        if (options && options._isComponent) {
          // optimize internal component instantiation
          // since dynamic options merging is pretty slow, and none of the
          // internal component options needs special treatment.
          initInternalComponent(vm, options);
        } else {
          vm.$options = mergeOptions(
            resolveConstructorOptions(vm.constructor),
            options || {},
            vm
          );
        }
        /* istanbul ignore else */
        {
          initProxy(vm);
        }
        // expose real self
        vm._self = vm;
        initLifecycle(vm);
        initEvents(vm);
        initRender(vm);
        callHook(vm, 'beforeCreate');
        initInjections(vm); // resolve injections before data/props
        initState(vm);
        initProvide(vm); // resolve provide after data/props
        callHook(vm, 'created');
  
        /* istanbul ignore if */
        if (config.performance && mark) {
          vm._name = formatComponentName(vm, false);
          mark(endTag);
          measure(("vue " + (vm._name) + " init"), startTag, endTag);
        }
  
        if (vm.$options.el) {
          vm.$mount(vm.$options.el);
        }
      };
    }
  
    function initInternalComponent (vm, options) {
      var opts = vm.$options = Object.create(vm.constructor.options);
      // doing this because it's faster than dynamic enumeration.
      var parentVnode = options._parentVnode;
      opts.parent = options.parent;
      opts._parentVnode = parentVnode;
  
      var vnodeComponentOptions = parentVnode.componentOptions;
      opts.propsData = vnodeComponentOptions.propsData;
      opts._parentListeners = vnodeComponentOptions.listeners;
      opts._renderChildren = vnodeComponentOptions.children;
      opts._componentTag = vnodeComponentOptions.tag;
  
      if (options.render) {
        opts.render = options.render;
        opts.staticRenderFns = options.staticRenderFns;
      }
    }
  
    function resolveConstructorOptions (Ctor) {
      var options = Ctor.options;
      if (Ctor.super) {
        var superOptions = resolveConstructorOptions(Ctor.super);
        var cachedSuperOptions = Ctor.superOptions;
        if (superOptions !== cachedSuperOptions) {
          // super option changed,
          // need to resolve new options.
          Ctor.superOptions = superOptions;
          // check if there are any late-modified/attached options (#4976)
          var modifiedOptions = resolveModifiedOptions(Ctor);
          // update base extend options
          if (modifiedOptions) {
            extend(Ctor.extendOptions, modifiedOptions);
          }
          options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
          if (options.name) {
            options.components[options.name] = Ctor;
          }
        }
      }
      return options
    }
  
    function resolveModifiedOptions (Ctor) {
      var modified;
      var latest = Ctor.options;
      var sealed = Ctor.sealedOptions;
      for (var key in latest) {
        if (latest[key] !== sealed[key]) {
          if (!modified) { modified = {}; }
          modified[key] = latest[key];
        }
      }
      return modified
    }
  
    function Vue (options) {
      if (!(this instanceof Vue)
      ) {
        warn('Vue is a constructor and should be called with the `new` keyword');
      }
      this._init(options);
    }
  
    initMixin(Vue);
    stateMixin(Vue);
    eventsMixin(Vue);
    lifecycleMixin(Vue);
    renderMixin(Vue);
  
    /*  */
  
    function initUse (Vue) {
      Vue.use = function (plugin) {
        var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
        if (installedPlugins.indexOf(plugin) > -1) {
          return this
        }
  
        // additional parameters
        var args = toArray(arguments, 1);
        args.unshift(this);
        if (typeof plugin.install === 'function') {
          plugin.install.apply(plugin, args);
        } else if (typeof plugin === 'function') {
          plugin.apply(null, args);
        }
        installedPlugins.push(plugin);
        return this
      };
    }
  
    /*  */
  
    function initMixin$1 (Vue) {
      Vue.mixin = function (mixin) {
        this.options = mergeOptions(this.options, mixin);
        return this
      };
    }
  
    /*  */
  
    function initExtend (Vue) {
      /**
       * Each instance constructor, including Vue, has a unique
       * cid. This enables us to create wrapped "child
       * constructors" for prototypal inheritance and cache them.
       */
      Vue.cid = 0;
      var cid = 1;
  
      /**
       * Class inheritance
       */
      Vue.extend = function (extendOptions) {
        extendOptions = extendOptions || {};
        var Super = this;
        var SuperId = Super.cid;
        var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
        if (cachedCtors[SuperId]) {
          return cachedCtors[SuperId]
        }
  
        var name = extendOptions.name || Super.options.name;
        if (name) {
          validateComponentName(name);
        }
  
        var Sub = function VueComponent (options) {
          this._init(options);
        };
        Sub.prototype = Object.create(Super.prototype);
        Sub.prototype.constructor = Sub;
        Sub.cid = cid++;
        Sub.options = mergeOptions(
          Super.options,
          extendOptions
        );
        Sub['super'] = Super;
  
        // For props and computed properties, we define the proxy getters on
        // the Vue instances at extension time, on the extended prototype. This
        // avoids Object.defineProperty calls for each instance created.
        if (Sub.options.props) {
          initProps$1(Sub);
        }
        if (Sub.options.computed) {
          initComputed$1(Sub);
        }
  
        // allow further extension/mixin/plugin usage
        Sub.extend = Super.extend;
        Sub.mixin = Super.mixin;
        Sub.use = Super.use;
  
        // create asset registers, so extended classes
        // can have their private assets too.
        ASSET_TYPES.forEach(function (type) {
          Sub[type] = Super[type];
        });
        // enable recursive self-lookup
        if (name) {
          Sub.options.components[name] = Sub;
        }
  
        // keep a reference to the super options at extension time.
        // later at instantiation we can check if Super's options have
        // been updated.
        Sub.superOptions = Super.options;
        Sub.extendOptions = extendOptions;
        Sub.sealedOptions = extend({}, Sub.options);
  
        // cache constructor
        cachedCtors[SuperId] = Sub;
        return Sub
      };
    }
  
    function initProps$1 (Comp) {
      var props = Comp.options.props;
      for (var key in props) {
        proxy(Comp.prototype, "_props", key);
      }
    }
  
    function initComputed$1 (Comp) {
      var computed = Comp.options.computed;
      for (var key in computed) {
        defineComputed(Comp.prototype, key, computed[key]);
      }
    }
  
    /*  */
  
    function initAssetRegisters (Vue) {
      /**
       * Create asset registration methods.
       */
      ASSET_TYPES.forEach(function (type) {
        Vue[type] = function (
          id,
          definition
        ) {
          if (!definition) {
            return this.options[type + 's'][id]
          } else {
            /* istanbul ignore if */
            if (type === 'component') {
              validateComponentName(id);
            }
            if (type === 'component' && isPlainObject(definition)) {
              definition.name = definition.name || id;
              definition = this.options._base.extend(definition);
            }
            if (type === 'directive' && typeof definition === 'function') {
              definition = { bind: definition, update: definition };
            }
            this.options[type + 's'][id] = definition;
            return definition
          }
        };
      });
    }
  
    /*  */
  
  
  
  
  
    function getComponentName (opts) {
      return opts && (opts.Ctor.options.name || opts.tag)
    }
  
    function matches (pattern, name) {
      if (Array.isArray(pattern)) {
        return pattern.indexOf(name) > -1
      } else if (typeof pattern === 'string') {
        return pattern.split(',').indexOf(name) > -1
      } else if (isRegExp(pattern)) {
        return pattern.test(name)
      }
      /* istanbul ignore next */
      return false
    }
  
    function pruneCache (keepAliveInstance, filter) {
      var cache = keepAliveInstance.cache;
      var keys = keepAliveInstance.keys;
      var _vnode = keepAliveInstance._vnode;
      for (var key in cache) {
        var entry = cache[key];
        if (entry) {
          var name = entry.name;
          if (name && !filter(name)) {
            pruneCacheEntry(cache, key, keys, _vnode);
          }
        }
      }
    }
  
    function pruneCacheEntry (
      cache,
      key,
      keys,
      current
    ) {
      var entry = cache[key];
      if (entry && (!current || entry.tag !== current.tag)) {
        entry.componentInstance.$destroy();
      }
      cache[key] = null;
      remove(keys, key);
    }
  
    var patternTypes = [String, RegExp, Array];
  
    var KeepAlive = {
      name: 'keep-alive',
      abstract: true,
  
      props: {
        include: patternTypes,
        exclude: patternTypes,
        max: [String, Number]
      },
  
      methods: {
        cacheVNode: function cacheVNode() {
          var ref = this;
          var cache = ref.cache;
          var keys = ref.keys;
          var vnodeToCache = ref.vnodeToCache;
          var keyToCache = ref.keyToCache;
          if (vnodeToCache) {
            var tag = vnodeToCache.tag;
            var componentInstance = vnodeToCache.componentInstance;
            var componentOptions = vnodeToCache.componentOptions;
            cache[keyToCache] = {
              name: getComponentName(componentOptions),
              tag: tag,
              componentInstance: componentInstance,
            };
            keys.push(keyToCache);
            // prune oldest entry
            if (this.max && keys.length > parseInt(this.max)) {
              pruneCacheEntry(cache, keys[0], keys, this._vnode);
            }
            this.vnodeToCache = null;
          }
        }
      },
  
      created: function created () {
        this.cache = Object.create(null);
        this.keys = [];
      },
  
      destroyed: function destroyed () {
        for (var key in this.cache) {
          pruneCacheEntry(this.cache, key, this.keys);
        }
      },
  
      mounted: function mounted () {
        var this$1 = this;
  
        this.cacheVNode();
        this.$watch('include', function (val) {
          pruneCache(this$1, function (name) { return matches(val, name); });
        });
        this.$watch('exclude', function (val) {
          pruneCache(this$1, function (name) { return !matches(val, name); });
        });
      },
  
      updated: function updated () {
        this.cacheVNode();
      },
  
      render: function render () {
        var slot = this.$slots.default;
        var vnode = getFirstComponentChild(slot);
        var componentOptions = vnode && vnode.componentOptions;
        if (componentOptions) {
          // check pattern
          var name = getComponentName(componentOptions);
          var ref = this;
          var include = ref.include;
          var exclude = ref.exclude;
          if (
            // not included
            (include && (!name || !matches(include, name))) ||
            // excluded
            (exclude && name && matches(exclude, name))
          ) {
            return vnode
          }
  
          var ref$1 = this;
          var cache = ref$1.cache;
          var keys = ref$1.keys;
          var key = vnode.key == null
            // same constructor may get registered as different local components
            // so cid alone is not enough (#3269)
            ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
            : vnode.key;
          if (cache[key]) {
            vnode.componentInstance = cache[key].componentInstance;
            // make current key freshest
            remove(keys, key);
            keys.push(key);
          } else {
            // delay setting the cache until update
            this.vnodeToCache = vnode;
            this.keyToCache = key;
          }
  
          vnode.data.keepAlive = true;
        }
        return vnode || (slot && slot[0])
      }
    };
  
    var builtInComponents = {
      KeepAlive: KeepAlive
    };
  
    /*  */
  
    function initGlobalAPI (Vue) {
      // config
      var configDef = {};
      configDef.get = function () { return config; };
      {
        configDef.set = function () {
          warn(
            'Do not replace the Vue.config object, set individual fields instead.'
          );
        };
      }
      Object.defineProperty(Vue, 'config', configDef);
  
      // exposed util methods.
      // NOTE: these are not considered part of the public API - avoid relying on
      // them unless you are aware of the risk.
      Vue.util = {
        warn: warn,
        extend: extend,
        mergeOptions: mergeOptions,
        defineReactive: defineReactive$$1
      };
  
      Vue.set = set;
      Vue.delete = del;
      Vue.nextTick = nextTick;
  
      // 2.6 explicit observable API
      Vue.observable = function (obj) {
        observe(obj);
        return obj
      };
  
      Vue.options = Object.create(null);
      ASSET_TYPES.forEach(function (type) {
        Vue.options[type + 's'] = Object.create(null);
      });
  
      // this is used to identify the "base" constructor to extend all plain-object
      // components with in Weex's multi-instance scenarios.
      Vue.options._base = Vue;
  
      extend(Vue.options.components, builtInComponents);
  
      initUse(Vue);
      initMixin$1(Vue);
      initExtend(Vue);
      initAssetRegisters(Vue);
    }
  
    initGlobalAPI(Vue);
  
    Object.defineProperty(Vue.prototype, '$isServer', {
      get: isServerRendering
    });
  
    Object.defineProperty(Vue.prototype, '$ssrContext', {
      get: function get () {
        /* istanbul ignore next */
        return this.$vnode && this.$vnode.ssrContext
      }
    });
  
    // expose FunctionalRenderContext for ssr runtime helper installation
    Object.defineProperty(Vue, 'FunctionalRenderContext', {
      value: FunctionalRenderContext
    });
  
    Vue.version = '2.6.14';
  
    /*  */
  
    // these are reserved for web because they are directly compiled away
    // during template compilation
    var isReservedAttr = makeMap('style,class');
  
    // attributes that should be using props for binding
    var acceptValue = makeMap('input,textarea,option,select,progress');
    var mustUseProp = function (tag, type, attr) {
      return (
        (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
        (attr === 'selected' && tag === 'option') ||
        (attr === 'checked' && tag === 'input') ||
        (attr === 'muted' && tag === 'video')
      )
    };
  
    var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
  
    var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
  
    var convertEnumeratedValue = function (key, value) {
      return isFalsyAttrValue(value) || value === 'false'
        ? 'false'
        // allow arbitrary string value for contenteditable
        : key === 'contenteditable' && isValidContentEditableValue(value)
          ? value
          : 'true'
    };
  
    var isBooleanAttr = makeMap(
      'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
      'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
      'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
      'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
      'required,reversed,scoped,seamless,selected,sortable,' +
      'truespeed,typemustmatch,visible'
    );
  
    var xlinkNS = 'http://www.w3.org/1999/xlink';
  
    var isXlink = function (name) {
      return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
    };
  
    var getXlinkProp = function (name) {
      return isXlink(name) ? name.slice(6, name.length) : ''
    };
  
    var isFalsyAttrValue = function (val) {
      return val == null || val === false
    };
  
    /*  */
  
    function genClassForVnode (vnode) {
      var data = vnode.data;
      var parentNode = vnode;
      var childNode = vnode;
      while (isDef(childNode.componentInstance)) {
        childNode = childNode.componentInstance._vnode;
        if (childNode && childNode.data) {
          data = mergeClassData(childNode.data, data);
        }
      }
      while (isDef(parentNode = parentNode.parent)) {
        if (parentNode && parentNode.data) {
          data = mergeClassData(data, parentNode.data);
        }
      }
      return renderClass(data.staticClass, data.class)
    }
  
    function mergeClassData (child, parent) {
      return {
        staticClass: concat(child.staticClass, parent.staticClass),
        class: isDef(child.class)
          ? [child.class, parent.class]
          : parent.class
      }
    }
  
    function renderClass (
      staticClass,
      dynamicClass
    ) {
      if (isDef(staticClass) || isDef(dynamicClass)) {
        return concat(staticClass, stringifyClass(dynamicClass))
      }
      /* istanbul ignore next */
      return ''
    }
  
    function concat (a, b) {
      return a ? b ? (a + ' ' + b) : a : (b || '')
    }
  
    function stringifyClass (value) {
      if (Array.isArray(value)) {
        return stringifyArray(value)
      }
      if (isObject(value)) {
        return stringifyObject(value)
      }
      if (typeof value === 'string') {
        return value
      }
      /* istanbul ignore next */
      return ''
    }
  
    function stringifyArray (value) {
      var res = '';
      var stringified;
      for (var i = 0, l = value.length; i < l; i++) {
        if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
          if (res) { res += ' '; }
          res += stringified;
        }
      }
      return res
    }
  
    function stringifyObject (value) {
      var res = '';
      for (var key in value) {
        if (value[key]) {
          if (res) { res += ' '; }
          res += key;
        }
      }
      return res
    }
  
    /*  */
  
    var namespaceMap = {
      svg: 'http://www.w3.org/2000/svg',
      math: 'http://www.w3.org/1998/Math/MathML'
    };
  
    var isHTMLTag = makeMap(
      'html,body,base,head,link,meta,style,title,' +
      'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
      'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
      'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
      's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
      'embed,object,param,source,canvas,script,noscript,del,ins,' +
      'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
      'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
      'output,progress,select,textarea,' +
      'details,dialog,menu,menuitem,summary,' +
      'content,element,shadow,template,blockquote,iframe,tfoot'
    );
  
    // this map is intentionally selective, only covering SVG elements that may
    // contain child elements.
    var isSVG = makeMap(
      'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
      'foreignobject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
      'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
      true
    );
  
    var isPreTag = function (tag) { return tag === 'pre'; };
  
    var isReservedTag = function (tag) {
      return isHTMLTag(tag) || isSVG(tag)
    };
  
    function getTagNamespace (tag) {
      if (isSVG(tag)) {
        return 'svg'
      }
      // basic support for MathML
      // note it doesn't support other MathML elements being component roots
      if (tag === 'math') {
        return 'math'
      }
    }
  
    var unknownElementCache = Object.create(null);
    function isUnknownElement (tag) {
      /* istanbul ignore if */
      if (!inBrowser) {
        return true
      }
      if (isReservedTag(tag)) {
        return false
      }
      tag = tag.toLowerCase();
      /* istanbul ignore if */
      if (unknownElementCache[tag] != null) {
        return unknownElementCache[tag]
      }
      var el = document.createElement(tag);
      if (tag.indexOf('-') > -1) {
        // http://stackoverflow.com/a/28210364/1070244
        return (unknownElementCache[tag] = (
          el.constructor === window.HTMLUnknownElement ||
          el.constructor === window.HTMLElement
        ))
      } else {
        return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
      }
    }
  
    var isTextInputType = makeMap('text,number,password,search,email,tel,url');
  
    /*  */
  
    /**
     * Query an element selector if it's not an element already.
     */
    function query (el) {
      if (typeof el === 'string') {
        var selected = document.querySelector(el);
        if (!selected) {
          warn(
            'Cannot find element: ' + el
          );
          return document.createElement('div')
        }
        return selected
      } else {
        return el
      }
    }
  
    /*  */
  
    function createElement$1 (tagName, vnode) {
      var elm = document.createElement(tagName);
      if (tagName !== 'select') {
        return elm
      }
      // false or null will remove the attribute but undefined will not
      if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
        elm.setAttribute('multiple', 'multiple');
      }
      return elm
    }
  
    function createElementNS (namespace, tagName) {
      return document.createElementNS(namespaceMap[namespace], tagName)
    }
  
    function createTextNode (text) {
      return document.createTextNode(text)
    }
  
    function createComment (text) {
      return document.createComment(text)
    }
  
    function insertBefore (parentNode, newNode, referenceNode) {
      parentNode.insertBefore(newNode, referenceNode);
    }
  
    function removeChild (node, child) {
      node.removeChild(child);
    }
  
    function appendChild (node, child) {
      node.appendChild(child);
    }
  
    function parentNode (node) {
      return node.parentNode
    }
  
    function nextSibling (node) {
      return node.nextSibling
    }
  
    function tagName (node) {
      return node.tagName
    }
  
    function setTextContent (node, text) {
      node.textContent = text;
    }
  
    function setStyleScope (node, scopeId) {
      node.setAttribute(scopeId, '');
    }
  
    var nodeOps = /*#__PURE__*/Object.freeze({
      createElement: createElement$1,
      createElementNS: createElementNS,
      createTextNode: createTextNode,
      createComment: createComment,
      insertBefore: insertBefore,
      removeChild: removeChild,
      appendChild: appendChild,
      parentNode: parentNode,
      nextSibling: nextSibling,
      tagName: tagName,
      setTextContent: setTextContent,
      setStyleScope: setStyleScope
    });
  
    /*  */
  
    var ref = {
      create: function create (_, vnode) {
        registerRef(vnode);
      },
      update: function update (oldVnode, vnode) {
        if (oldVnode.data.ref !== vnode.data.ref) {
          registerRef(oldVnode, true);
          registerRef(vnode);
        }
      },
      destroy: function destroy (vnode) {
        registerRef(vnode, true);
      }
    };
  
    function registerRef (vnode, isRemoval) {
      var key = vnode.data.ref;
      if (!isDef(key)) { return }
  
      var vm = vnode.context;
      var ref = vnode.componentInstance || vnode.elm;
      var refs = vm.$refs;
      if (isRemoval) {
        if (Array.isArray(refs[key])) {
          remove(refs[key], ref);
        } else if (refs[key] === ref) {
          refs[key] = undefined;
        }
      } else {
        if (vnode.data.refInFor) {
          if (!Array.isArray(refs[key])) {
            refs[key] = [ref];
          } else if (refs[key].indexOf(ref) < 0) {
            // $flow-disable-line
            refs[key].push(ref);
          }
        } else {
          refs[key] = ref;
        }
      }
    }
  
    /**
     * Virtual DOM patching algorithm based on Snabbdom by
     * Simon Friis Vindum (@paldepind)
     * Licensed under the MIT License
     * https://github.com/paldepind/snabbdom/blob/master/LICENSE
     *
     * modified by Evan You (@yyx990803)
     *
     * Not type-checking this because this file is perf-critical and the cost
     * of making flow understand it is not worth it.
     */
  
    var emptyNode = new VNode('', {}, []);
  
    var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
  
    function sameVnode (a, b) {
      return (
        a.key === b.key &&
        a.asyncFactory === b.asyncFactory && (
          (
            a.tag === b.tag &&
            a.isComment === b.isComment &&
            isDef(a.data) === isDef(b.data) &&
            sameInputType(a, b)
          ) || (
            isTrue(a.isAsyncPlaceholder) &&
            isUndef(b.asyncFactory.error)
          )
        )
      )
    }
  
    function sameInputType (a, b) {
      if (a.tag !== 'input') { return true }
      var i;
      var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
      var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
      return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
    }
  
    function createKeyToOldIdx (children, beginIdx, endIdx) {
      var i, key;
      var map = {};
      for (i = beginIdx; i <= endIdx; ++i) {
        key = children[i].key;
        if (isDef(key)) { map[key] = i; }
      }
      return map
    }
  
    function createPatchFunction (backend) {
      var i, j;
      var cbs = {};
  
      var modules = backend.modules;
      var nodeOps = backend.nodeOps;
  
      for (i = 0; i < hooks.length; ++i) {
        cbs[hooks[i]] = [];
        for (j = 0; j < modules.length; ++j) {
          if (isDef(modules[j][hooks[i]])) {
            cbs[hooks[i]].push(modules[j][hooks[i]]);
          }
        }
      }
  
      function emptyNodeAt (elm) {
        return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
      }
  
      function createRmCb (childElm, listeners) {
        function remove$$1 () {
          if (--remove$$1.listeners === 0) {
            removeNode(childElm);
          }
        }
        remove$$1.listeners = listeners;
        return remove$$1
      }
  
      function removeNode (el) {
        var parent = nodeOps.parentNode(el);
        // element may have already been removed due to v-html / v-text
        if (isDef(parent)) {
          nodeOps.removeChild(parent, el);
        }
      }
  
      function isUnknownElement$$1 (vnode, inVPre) {
        return (
          !inVPre &&
          !vnode.ns &&
          !(
            config.ignoredElements.length &&
            config.ignoredElements.some(function (ignore) {
              return isRegExp(ignore)
                ? ignore.test(vnode.tag)
                : ignore === vnode.tag
            })
          ) &&
          config.isUnknownElement(vnode.tag)
        )
      }
  
      var creatingElmInVPre = 0;
  
      function createElm (
        vnode,
        insertedVnodeQueue,
        parentElm,
        refElm,
        nested,
        ownerArray,
        index
      ) {
        if (isDef(vnode.elm) && isDef(ownerArray)) {
          // This vnode was used in a previous render!
          // now it's used as a new node, overwriting its elm would cause
          // potential patch errors down the road when it's used as an insertion
          // reference node. Instead, we clone the node on-demand before creating
          // associated DOM element for it.
          vnode = ownerArray[index] = cloneVNode(vnode);
        }
  
        vnode.isRootInsert = !nested; // for transition enter check
        if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
          return
        }
  
        var data = vnode.data;
        var children = vnode.children;
        var tag = vnode.tag;
        if (isDef(tag)) {
          {
            if (data && data.pre) {
              creatingElmInVPre++;
            }
            if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
              warn(
                'Unknown custom element: <' + tag + '> - did you ' +
                'register the component correctly? For recursive components, ' +
                'make sure to provide the "name" option.',
                vnode.context
              );
            }
          }
  
          vnode.elm = vnode.ns
            ? nodeOps.createElementNS(vnode.ns, tag)
            : nodeOps.createElement(tag, vnode);
          setScope(vnode);
  
          /* istanbul ignore if */
          {
            createChildren(vnode, children, insertedVnodeQueue);
            if (isDef(data)) {
              invokeCreateHooks(vnode, insertedVnodeQueue);
            }
            insert(parentElm, vnode.elm, refElm);
          }
  
          if (data && data.pre) {
            creatingElmInVPre--;
          }
        } else if (isTrue(vnode.isComment)) {
          vnode.elm = nodeOps.createComment(vnode.text);
          insert(parentElm, vnode.elm, refElm);
        } else {
          vnode.elm = nodeOps.createTextNode(vnode.text);
          insert(parentElm, vnode.elm, refElm);
        }
      }
  
      function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
        var i = vnode.data;
        if (isDef(i)) {
          var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
          if (isDef(i = i.hook) && isDef(i = i.init)) {
            i(vnode, false /* hydrating */);
          }
          // after calling the init hook, if the vnode is a child component
          // it should've created a child instance and mounted it. the child
          // component also has set the placeholder vnode's elm.
          // in that case we can just return the element and be done.
          if (isDef(vnode.componentInstance)) {
            initComponent(vnode, insertedVnodeQueue);
            insert(parentElm, vnode.elm, refElm);
            if (isTrue(isReactivated)) {
              reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
            }
            return true
          }
        }
      }
  
      function initComponent (vnode, insertedVnodeQueue) {
        if (isDef(vnode.data.pendingInsert)) {
          insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
          vnode.data.pendingInsert = null;
        }
        vnode.elm = vnode.componentInstance.$el;
        if (isPatchable(vnode)) {
          invokeCreateHooks(vnode, insertedVnodeQueue);
          setScope(vnode);
        } else {
          // empty component root.
          // skip all element-related modules except for ref (#3455)
          registerRef(vnode);
          // make sure to invoke the insert hook
          insertedVnodeQueue.push(vnode);
        }
      }
  
      function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
        var i;
        // hack for #4339: a reactivated component with inner transition
        // does not trigger because the inner node's created hooks are not called
        // again. It's not ideal to involve module-specific logic in here but
        // there doesn't seem to be a better way to do it.
        var innerNode = vnode;
        while (innerNode.componentInstance) {
          innerNode = innerNode.componentInstance._vnode;
          if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
            for (i = 0; i < cbs.activate.length; ++i) {
              cbs.activate[i](emptyNode, innerNode);
            }
            insertedVnodeQueue.push(innerNode);
            break
          }
        }
        // unlike a newly created component,
        // a reactivated keep-alive component doesn't insert itself
        insert(parentElm, vnode.elm, refElm);
      }
  
      function insert (parent, elm, ref$$1) {
        if (isDef(parent)) {
          if (isDef(ref$$1)) {
            if (nodeOps.parentNode(ref$$1) === parent) {
              nodeOps.insertBefore(parent, elm, ref$$1);
            }
          } else {
            nodeOps.appendChild(parent, elm);
          }
        }
      }
  
      function createChildren (vnode, children, insertedVnodeQueue) {
        if (Array.isArray(children)) {
          {
            checkDuplicateKeys(children);
          }
          for (var i = 0; i < children.length; ++i) {
            createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
          }
        } else if (isPrimitive(vnode.text)) {
          nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
        }
      }
  
      function isPatchable (vnode) {
        while (vnode.componentInstance) {
          vnode = vnode.componentInstance._vnode;
        }
        return isDef(vnode.tag)
      }
  
      function invokeCreateHooks (vnode, insertedVnodeQueue) {
        for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
          cbs.create[i$1](emptyNode, vnode);
        }
        i = vnode.data.hook; // Reuse variable
        if (isDef(i)) {
          if (isDef(i.create)) { i.create(emptyNode, vnode); }
          if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
        }
      }
  
      // set scope id attribute for scoped CSS.
      // this is implemented as a special case to avoid the overhead
      // of going through the normal attribute patching process.
      function setScope (vnode) {
        var i;
        if (isDef(i = vnode.fnScopeId)) {
          nodeOps.setStyleScope(vnode.elm, i);
        } else {
          var ancestor = vnode;
          while (ancestor) {
            if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
              nodeOps.setStyleScope(vnode.elm, i);
            }
            ancestor = ancestor.parent;
          }
        }
        // for slot content they should also get the scopeId from the host instance.
        if (isDef(i = activeInstance) &&
          i !== vnode.context &&
          i !== vnode.fnContext &&
          isDef(i = i.$options._scopeId)
        ) {
          nodeOps.setStyleScope(vnode.elm, i);
        }
      }
  
      function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
        for (; startIdx <= endIdx; ++startIdx) {
          createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
        }
      }
  
      function invokeDestroyHook (vnode) {
        var i, j;
        var data = vnode.data;
        if (isDef(data)) {
          if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
          for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
        }
        if (isDef(i = vnode.children)) {
          for (j = 0; j < vnode.children.length; ++j) {
            invokeDestroyHook(vnode.children[j]);
          }
        }
      }
  
      function removeVnodes (vnodes, startIdx, endIdx) {
        for (; startIdx <= endIdx; ++startIdx) {
          var ch = vnodes[startIdx];
          if (isDef(ch)) {
            if (isDef(ch.tag)) {
              removeAndInvokeRemoveHook(ch);
              invokeDestroyHook(ch);
            } else { // Text node
              removeNode(ch.elm);
            }
          }
        }
      }
  
      function removeAndInvokeRemoveHook (vnode, rm) {
        if (isDef(rm) || isDef(vnode.data)) {
          var i;
          var listeners = cbs.remove.length + 1;
          if (isDef(rm)) {
            // we have a recursively passed down rm callback
            // increase the listeners count
            rm.listeners += listeners;
          } else {
            // directly removing
            rm = createRmCb(vnode.elm, listeners);
          }
          // recursively invoke hooks on child component root node
          if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
            removeAndInvokeRemoveHook(i, rm);
          }
          for (i = 0; i < cbs.remove.length; ++i) {
            cbs.remove[i](vnode, rm);
          }
          if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
            i(vnode, rm);
          } else {
            rm();
          }
        } else {
          removeNode(vnode.elm);
        }
      }
  
      function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
        var oldStartIdx = 0;
        var newStartIdx = 0;
        var oldEndIdx = oldCh.length - 1;
        var oldStartVnode = oldCh[0];
        var oldEndVnode = oldCh[oldEndIdx];
        var newEndIdx = newCh.length - 1;
        var newStartVnode = newCh[0];
        var newEndVnode = newCh[newEndIdx];
        var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
  
        // removeOnly is a special flag used only by <transition-group>
        // to ensure removed elements stay in correct relative positions
        // during leaving transitions
        var canMove = !removeOnly;
  
        {
          checkDuplicateKeys(newCh);
        }
  
        while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
          if (isUndef(oldStartVnode)) {
            oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
          } else if (isUndef(oldEndVnode)) {
            oldEndVnode = oldCh[--oldEndIdx];
          } else if (sameVnode(oldStartVnode, newStartVnode)) {
            patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
            oldStartVnode = oldCh[++oldStartIdx];
            newStartVnode = newCh[++newStartIdx];
          } else if (sameVnode(oldEndVnode, newEndVnode)) {
            patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
            oldEndVnode = oldCh[--oldEndIdx];
            newEndVnode = newCh[--newEndIdx];
          } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
            patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
            canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
            oldStartVnode = oldCh[++oldStartIdx];
            newEndVnode = newCh[--newEndIdx];
          } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
            patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
            canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
            oldEndVnode = oldCh[--oldEndIdx];
            newStartVnode = newCh[++newStartIdx];
          } else {
            if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
            idxInOld = isDef(newStartVnode.key)
              ? oldKeyToIdx[newStartVnode.key]
              : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
            if (isUndef(idxInOld)) { // New element
              createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
            } else {
              vnodeToMove = oldCh[idxInOld];
              if (sameVnode(vnodeToMove, newStartVnode)) {
                patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
                oldCh[idxInOld] = undefined;
                canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
              } else {
                // same key but different element. treat as new element
                createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
              }
            }
            newStartVnode = newCh[++newStartIdx];
          }
        }
        if (oldStartIdx > oldEndIdx) {
          refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
          addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
        } else if (newStartIdx > newEndIdx) {
          removeVnodes(oldCh, oldStartIdx, oldEndIdx);
        }
      }
  
      function checkDuplicateKeys (children) {
        var seenKeys = {};
        for (var i = 0; i < children.length; i++) {
          var vnode = children[i];
          var key = vnode.key;
          if (isDef(key)) {
            if (seenKeys[key]) {
              warn(
                ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
                vnode.context
              );
            } else {
              seenKeys[key] = true;
            }
          }
        }
      }
  
      function findIdxInOld (node, oldCh, start, end) {
        for (var i = start; i < end; i++) {
          var c = oldCh[i];
          if (isDef(c) && sameVnode(node, c)) { return i }
        }
      }
  
      function patchVnode (
        oldVnode,
        vnode,
        insertedVnodeQueue,
        ownerArray,
        index,
        removeOnly
      ) {
        if (oldVnode === vnode) {
          return
        }
  
        if (isDef(vnode.elm) && isDef(ownerArray)) {
          // clone reused vnode
          vnode = ownerArray[index] = cloneVNode(vnode);
        }
  
        var elm = vnode.elm = oldVnode.elm;
  
        if (isTrue(oldVnode.isAsyncPlaceholder)) {
          if (isDef(vnode.asyncFactory.resolved)) {
            hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
          } else {
            vnode.isAsyncPlaceholder = true;
          }
          return
        }
  
        // reuse element for static trees.
        // note we only do this if the vnode is cloned -
        // if the new node is not cloned it means the render functions have been
        // reset by the hot-reload-api and we need to do a proper re-render.
        if (isTrue(vnode.isStatic) &&
          isTrue(oldVnode.isStatic) &&
          vnode.key === oldVnode.key &&
          (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
        ) {
          vnode.componentInstance = oldVnode.componentInstance;
          return
        }
  
        var i;
        var data = vnode.data;
        if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
          i(oldVnode, vnode);
        }
  
        var oldCh = oldVnode.children;
        var ch = vnode.children;
        if (isDef(data) && isPatchable(vnode)) {
          for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
          if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
        }
        if (isUndef(vnode.text)) {
          if (isDef(oldCh) && isDef(ch)) {
            if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
          } else if (isDef(ch)) {
            {
              checkDuplicateKeys(ch);
            }
            if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
            addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
          } else if (isDef(oldCh)) {
            removeVnodes(oldCh, 0, oldCh.length - 1);
          } else if (isDef(oldVnode.text)) {
            nodeOps.setTextContent(elm, '');
          }
        } else if (oldVnode.text !== vnode.text) {
          nodeOps.setTextContent(elm, vnode.text);
        }
        if (isDef(data)) {
          if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
        }
      }
  
      function invokeInsertHook (vnode, queue, initial) {
        // delay insert hooks for component root nodes, invoke them after the
        // element is really inserted
        if (isTrue(initial) && isDef(vnode.parent)) {
          vnode.parent.data.pendingInsert = queue;
        } else {
          for (var i = 0; i < queue.length; ++i) {
            queue[i].data.hook.insert(queue[i]);
          }
        }
      }
  
      var hydrationBailed = false;
      // list of modules that can skip create hook during hydration because they
      // are already rendered on the client or has no need for initialization
      // Note: style is excluded because it relies on initial clone for future
      // deep updates (#7063).
      var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
  
      // Note: this is a browser-only function so we can assume elms are DOM nodes.
      function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
        var i;
        var tag = vnode.tag;
        var data = vnode.data;
        var children = vnode.children;
        inVPre = inVPre || (data && data.pre);
        vnode.elm = elm;
  
        if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
          vnode.isAsyncPlaceholder = true;
          return true
        }
        // assert node match
        {
          if (!assertNodeMatch(elm, vnode, inVPre)) {
            return false
          }
        }
        if (isDef(data)) {
          if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
          if (isDef(i = vnode.componentInstance)) {
            // child component. it should have hydrated its own tree.
            initComponent(vnode, insertedVnodeQueue);
            return true
          }
        }
        if (isDef(tag)) {
          if (isDef(children)) {
            // empty element, allow client to pick up and populate children
            if (!elm.hasChildNodes()) {
              createChildren(vnode, children, insertedVnodeQueue);
            } else {
              // v-html and domProps: innerHTML
              if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
                if (i !== elm.innerHTML) {
                  /* istanbul ignore if */
                  if (typeof console !== 'undefined' &&
                    !hydrationBailed
                  ) {
                    hydrationBailed = true;
                    console.warn('Parent: ', elm);
                    console.warn('server innerHTML: ', i);
                    console.warn('client innerHTML: ', elm.innerHTML);
                  }
                  return false
                }
              } else {
                // iterate and compare children lists
                var childrenMatch = true;
                var childNode = elm.firstChild;
                for (var i$1 = 0; i$1 < children.length; i$1++) {
                  if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                    childrenMatch = false;
                    break
                  }
                  childNode = childNode.nextSibling;
                }
                // if childNode is not null, it means the actual childNodes list is
                // longer than the virtual children list.
                if (!childrenMatch || childNode) {
                  /* istanbul ignore if */
                  if (typeof console !== 'undefined' &&
                    !hydrationBailed
                  ) {
                    hydrationBailed = true;
                    console.warn('Parent: ', elm);
                    console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
                  }
                  return false
                }
              }
            }
          }
          if (isDef(data)) {
            var fullInvoke = false;
            for (var key in data) {
              if (!isRenderedModule(key)) {
                fullInvoke = true;
                invokeCreateHooks(vnode, insertedVnodeQueue);
                break
              }
            }
            if (!fullInvoke && data['class']) {
              // ensure collecting deps for deep class bindings for future updates
              traverse(data['class']);
            }
          }
        } else if (elm.data !== vnode.text) {
          elm.data = vnode.text;
        }
        return true
      }
  
      function assertNodeMatch (node, vnode, inVPre) {
        if (isDef(vnode.tag)) {
          return vnode.tag.indexOf('vue-component') === 0 || (
            !isUnknownElement$$1(vnode, inVPre) &&
            vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
          )
        } else {
          return node.nodeType === (vnode.isComment ? 8 : 3)
        }
      }
  
      return function patch (oldVnode, vnode, hydrating, removeOnly) {
        if (isUndef(vnode)) {
          if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
          return
        }
  
        var isInitialPatch = false;
        var insertedVnodeQueue = [];
  
        if (isUndef(oldVnode)) {
          // empty mount (likely as component), create new root element
          isInitialPatch = true;
          createElm(vnode, insertedVnodeQueue);
        } else {
          var isRealElement = isDef(oldVnode.nodeType);
          if (!isRealElement && sameVnode(oldVnode, vnode)) {
            // patch existing root node
            patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
          } else {
            if (isRealElement) {
              // mounting to a real element
              // check if this is server-rendered content and if we can perform
              // a successful hydration.
              if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
                oldVnode.removeAttribute(SSR_ATTR);
                hydrating = true;
              }
              if (isTrue(hydrating)) {
                if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
                  invokeInsertHook(vnode, insertedVnodeQueue, true);
                  return oldVnode
                } else {
                  warn(
                    'The client-side rendered virtual DOM tree is not matching ' +
                    'server-rendered content. This is likely caused by incorrect ' +
                    'HTML markup, for example nesting block-level elements inside ' +
                    '<p>, or missing <tbody>. Bailing hydration and performing ' +
                    'full client-side render.'
                  );
                }
              }
              // either not server-rendered, or hydration failed.
              // create an empty node and replace it
              oldVnode = emptyNodeAt(oldVnode);
            }
  
            // replacing existing element
            var oldElm = oldVnode.elm;
            var parentElm = nodeOps.parentNode(oldElm);
  
            // create new node
            createElm(
              vnode,
              insertedVnodeQueue,
              // extremely rare edge case: do not insert if old element is in a
              // leaving transition. Only happens when combining transition +
              // keep-alive + HOCs. (#4590)
              oldElm._leaveCb ? null : parentElm,
              nodeOps.nextSibling(oldElm)
            );
  
            // update parent placeholder node element, recursively
            if (isDef(vnode.parent)) {
              var ancestor = vnode.parent;
              var patchable = isPatchable(vnode);
              while (ancestor) {
                for (var i = 0; i < cbs.destroy.length; ++i) {
                  cbs.destroy[i](ancestor);
                }
                ancestor.elm = vnode.elm;
                if (patchable) {
                  for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
                    cbs.create[i$1](emptyNode, ancestor);
                  }
                  // #6513
                  // invoke insert hooks that may have been merged by create hooks.
                  // e.g. for directives that uses the "inserted" hook.
                  var insert = ancestor.data.hook.insert;
                  if (insert.merged) {
                    // start at index 1 to avoid re-invoking component mounted hook
                    for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
                      insert.fns[i$2]();
                    }
                  }
                } else {
                  registerRef(ancestor);
                }
                ancestor = ancestor.parent;
              }
            }
  
            // destroy old node
            if (isDef(parentElm)) {
              removeVnodes([oldVnode], 0, 0);
            } else if (isDef(oldVnode.tag)) {
              invokeDestroyHook(oldVnode);
            }
          }
        }
  
        invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
        return vnode.elm
      }
    }
  
    /*  */
  
    var directives = {
      create: updateDirectives,
      update: updateDirectives,
      destroy: function unbindDirectives (vnode) {
        updateDirectives(vnode, emptyNode);
      }
    };
  
    function updateDirectives (oldVnode, vnode) {
      if (oldVnode.data.directives || vnode.data.directives) {
        _update(oldVnode, vnode);
      }
    }
  
    function _update (oldVnode, vnode) {
      var isCreate = oldVnode === emptyNode;
      var isDestroy = vnode === emptyNode;
      var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
      var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
  
      var dirsWithInsert = [];
      var dirsWithPostpatch = [];
  
      var key, oldDir, dir;
      for (key in newDirs) {
        oldDir = oldDirs[key];
        dir = newDirs[key];
        if (!oldDir) {
          // new directive, bind
          callHook$1(dir, 'bind', vnode, oldVnode);
          if (dir.def && dir.def.inserted) {
            dirsWithInsert.push(dir);
          }
        } else {
          // existing directive, update
          dir.oldValue = oldDir.value;
          dir.oldArg = oldDir.arg;
          callHook$1(dir, 'update', vnode, oldVnode);
          if (dir.def && dir.def.componentUpdated) {
            dirsWithPostpatch.push(dir);
          }
        }
      }
  
      if (dirsWithInsert.length) {
        var callInsert = function () {
          for (var i = 0; i < dirsWithInsert.length; i++) {
            callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
          }
        };
        if (isCreate) {
          mergeVNodeHook(vnode, 'insert', callInsert);
        } else {
          callInsert();
        }
      }
  
      if (dirsWithPostpatch.length) {
        mergeVNodeHook(vnode, 'postpatch', function () {
          for (var i = 0; i < dirsWithPostpatch.length; i++) {
            callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
          }
        });
      }
  
      if (!isCreate) {
        for (key in oldDirs) {
          if (!newDirs[key]) {
            // no longer present, unbind
            callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
          }
        }
      }
    }
  
    var emptyModifiers = Object.create(null);
  
    function normalizeDirectives$1 (
      dirs,
      vm
    ) {
      var res = Object.create(null);
      if (!dirs) {
        // $flow-disable-line
        return res
      }
      var i, dir;
      for (i = 0; i < dirs.length; i++) {
        dir = dirs[i];
        if (!dir.modifiers) {
          // $flow-disable-line
          dir.modifiers = emptyModifiers;
        }
        res[getRawDirName(dir)] = dir;
        dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
      }
      // $flow-disable-line
      return res
    }
  
    function getRawDirName (dir) {
      return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
    }
  
    function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
      var fn = dir.def && dir.def[hook];
      if (fn) {
        try {
          fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
        } catch (e) {
          handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
        }
      }
    }
  
    var baseModules = [
      ref,
      directives
    ];
  
    /*  */
  
    function updateAttrs (oldVnode, vnode) {
      var opts = vnode.componentOptions;
      if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
        return
      }
      if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
        return
      }
      var key, cur, old;
      var elm = vnode.elm;
      var oldAttrs = oldVnode.data.attrs || {};
      var attrs = vnode.data.attrs || {};
      // clone observed objects, as the user probably wants to mutate it
      if (isDef(attrs.__ob__)) {
        attrs = vnode.data.attrs = extend({}, attrs);
      }
  
      for (key in attrs) {
        cur = attrs[key];
        old = oldAttrs[key];
        if (old !== cur) {
          setAttr(elm, key, cur, vnode.data.pre);
        }
      }
      // #4391: in IE9, setting type can reset value for input[type=radio]
      // #6666: IE/Edge forces progress value down to 1 before setting a max
      /* istanbul ignore if */
      if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
        setAttr(elm, 'value', attrs.value);
      }
      for (key in oldAttrs) {
        if (isUndef(attrs[key])) {
          if (isXlink(key)) {
            elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
          } else if (!isEnumeratedAttr(key)) {
            elm.removeAttribute(key);
          }
        }
      }
    }
  
    function setAttr (el, key, value, isInPre) {
      if (isInPre || el.tagName.indexOf('-') > -1) {
        baseSetAttr(el, key, value);
      } else if (isBooleanAttr(key)) {
        // set attribute for blank value
        // e.g. <option disabled>Select one</option>
        if (isFalsyAttrValue(value)) {
          el.removeAttribute(key);
        } else {
          // technically allowfullscreen is a boolean attribute for <iframe>,
          // but Flash expects a value of "true" when used on <embed> tag
          value = key === 'allowfullscreen' && el.tagName === 'EMBED'
            ? 'true'
            : key;
          el.setAttribute(key, value);
        }
      } else if (isEnumeratedAttr(key)) {
        el.setAttribute(key, convertEnumeratedValue(key, value));
      } else if (isXlink(key)) {
        if (isFalsyAttrValue(value)) {
          el.removeAttributeNS(xlinkNS, getXlinkProp(key));
        } else {
          el.setAttributeNS(xlinkNS, key, value);
        }
      } else {
        baseSetAttr(el, key, value);
      }
    }
  
    function baseSetAttr (el, key, value) {
      if (isFalsyAttrValue(value)) {
        el.removeAttribute(key);
      } else {
        // #7138: IE10 & 11 fires input event when setting placeholder on
        // <textarea>... block the first input event and remove the blocker
        // immediately.
        /* istanbul ignore if */
        if (
          isIE && !isIE9 &&
          el.tagName === 'TEXTAREA' &&
          key === 'placeholder' && value !== '' && !el.__ieph
        ) {
          var blocker = function (e) {
            e.stopImmediatePropagation();
            el.removeEventListener('input', blocker);
          };
          el.addEventListener('input', blocker);
          // $flow-disable-line
          el.__ieph = true; /* IE placeholder patched */
        }
        el.setAttribute(key, value);
      }
    }
  
    var attrs = {
      create: updateAttrs,
      update: updateAttrs
    };
  
    /*  */
  
    function updateClass (oldVnode, vnode) {
      var el = vnode.elm;
      var data = vnode.data;
      var oldData = oldVnode.data;
      if (
        isUndef(data.staticClass) &&
        isUndef(data.class) && (
          isUndef(oldData) || (
            isUndef(oldData.staticClass) &&
            isUndef(oldData.class)
          )
        )
      ) {
        return
      }
  
      var cls = genClassForVnode(vnode);
  
      // handle transition classes
      var transitionClass = el._transitionClasses;
      if (isDef(transitionClass)) {
        cls = concat(cls, stringifyClass(transitionClass));
      }
  
      // set the class
      if (cls !== el._prevClass) {
        el.setAttribute('class', cls);
        el._prevClass = cls;
      }
    }
  
    var klass = {
      create: updateClass,
      update: updateClass
    };
  
    /*  */
  
    var validDivisionCharRE = /[\w).+\-_$\]]/;
  
    function parseFilters (exp) {
      var inSingle = false;
      var inDouble = false;
      var inTemplateString = false;
      var inRegex = false;
      var curly = 0;
      var square = 0;
      var paren = 0;
      var lastFilterIndex = 0;
      var c, prev, i, expression, filters;
  
      for (i = 0; i < exp.length; i++) {
        prev = c;
        c = exp.charCodeAt(i);
        if (inSingle) {
          if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
        } else if (inDouble) {
          if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
        } else if (inTemplateString) {
          if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
        } else if (inRegex) {
          if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
        } else if (
          c === 0x7C && // pipe
          exp.charCodeAt(i + 1) !== 0x7C &&
          exp.charCodeAt(i - 1) !== 0x7C &&
          !curly && !square && !paren
        ) {
          if (expression === undefined) {
            // first filter, end of expression
            lastFilterIndex = i + 1;
            expression = exp.slice(0, i).trim();
          } else {
            pushFilter();
          }
        } else {
          switch (c) {
            case 0x22: inDouble = true; break         // "
            case 0x27: inSingle = true; break         // '
            case 0x60: inTemplateString = true; break // `
            case 0x28: paren++; break                 // (
            case 0x29: paren--; break                 // )
            case 0x5B: square++; break                // [
            case 0x5D: square--; break                // ]
            case 0x7B: curly++; break                 // {
            case 0x7D: curly--; break                 // }
          }
          if (c === 0x2f) { // /
            var j = i - 1;
            var p = (void 0);
            // find first non-whitespace prev char
            for (; j >= 0; j--) {
              p = exp.charAt(j);
              if (p !== ' ') { break }
            }
            if (!p || !validDivisionCharRE.test(p)) {
              inRegex = true;
            }
          }
        }
      }
  
      if (expression === undefined) {
        expression = exp.slice(0, i).trim();
      } else if (lastFilterIndex !== 0) {
        pushFilter();
      }
  
      function pushFilter () {
        (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
        lastFilterIndex = i + 1;
      }
  
      if (filters) {
        for (i = 0; i < filters.length; i++) {
          expression = wrapFilter(expression, filters[i]);
        }
      }
  
      return expression
    }
  
    function wrapFilter (exp, filter) {
      var i = filter.indexOf('(');
      if (i < 0) {
        // _f: resolveFilter
        return ("_f(\"" + filter + "\")(" + exp + ")")
      } else {
        var name = filter.slice(0, i);
        var args = filter.slice(i + 1);
        return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
      }
    }
  
    /*  */
  
  
  
    /* eslint-disable no-unused-vars */
    function baseWarn (msg, range) {
      console.error(("[Vue compiler]: " + msg));
    }
    /* eslint-enable no-unused-vars */
  
    function pluckModuleFunction (
      modules,
      key
    ) {
      return modules
        ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
        : []
    }
  
    function addProp (el, name, value, range, dynamic) {
      (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
      el.plain = false;
    }
  
    function addAttr (el, name, value, range, dynamic) {
      var attrs = dynamic
        ? (el.dynamicAttrs || (el.dynamicAttrs = []))
        : (el.attrs || (el.attrs = []));
      attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
      el.plain = false;
    }
  
    // add a raw attr (use this in preTransforms)
    function addRawAttr (el, name, value, range) {
      el.attrsMap[name] = value;
      el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
    }
  
    function addDirective (
      el,
      name,
      rawName,
      value,
      arg,
      isDynamicArg,
      modifiers,
      range
    ) {
      (el.directives || (el.directives = [])).push(rangeSetItem({
        name: name,
        rawName: rawName,
        value: value,
        arg: arg,
        isDynamicArg: isDynamicArg,
        modifiers: modifiers
      }, range));
      el.plain = false;
    }
  
    function prependModifierMarker (symbol, name, dynamic) {
      return dynamic
        ? ("_p(" + name + ",\"" + symbol + "\")")
        : symbol + name // mark the event as captured
    }
  
    function addHandler (
      el,
      name,
      value,
      modifiers,
      important,
      warn,
      range,
      dynamic
    ) {
      modifiers = modifiers || emptyObject;
      // warn prevent and passive modifier
      /* istanbul ignore if */
      if (
        warn &&
        modifiers.prevent && modifiers.passive
      ) {
        warn(
          'passive and prevent can\'t be used together. ' +
          'Passive handler can\'t prevent default event.',
          range
        );
      }
  
      // normalize click.right and click.middle since they don't actually fire
      // this is technically browser-specific, but at least for now browsers are
      // the only target envs that have right/middle clicks.
      if (modifiers.right) {
        if (dynamic) {
          name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
        } else if (name === 'click') {
          name = 'contextmenu';
          delete modifiers.right;
        }
      } else if (modifiers.middle) {
        if (dynamic) {
          name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
        } else if (name === 'click') {
          name = 'mouseup';
        }
      }
  
      // check capture modifier
      if (modifiers.capture) {
        delete modifiers.capture;
        name = prependModifierMarker('!', name, dynamic);
      }
      if (modifiers.once) {
        delete modifiers.once;
        name = prependModifierMarker('~', name, dynamic);
      }
      /* istanbul ignore if */
      if (modifiers.passive) {
        delete modifiers.passive;
        name = prependModifierMarker('&', name, dynamic);
      }
  
      var events;
      if (modifiers.native) {
        delete modifiers.native;
        events = el.nativeEvents || (el.nativeEvents = {});
      } else {
        events = el.events || (el.events = {});
      }
  
      var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
      if (modifiers !== emptyObject) {
        newHandler.modifiers = modifiers;
      }
  
      var handlers = events[name];
      /* istanbul ignore if */
      if (Array.isArray(handlers)) {
        important ? handlers.unshift(newHandler) : handlers.push(newHandler);
      } else if (handlers) {
        events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
      } else {
        events[name] = newHandler;
      }
  
      el.plain = false;
    }
  
    function getRawBindingAttr (
      el,
      name
    ) {
      return el.rawAttrsMap[':' + name] ||
        el.rawAttrsMap['v-bind:' + name] ||
        el.rawAttrsMap[name]
    }
  
    function getBindingAttr (
      el,
      name,
      getStatic
    ) {
      var dynamicValue =
        getAndRemoveAttr(el, ':' + name) ||
        getAndRemoveAttr(el, 'v-bind:' + name);
      if (dynamicValue != null) {
        return parseFilters(dynamicValue)
      } else if (getStatic !== false) {
        var staticValue = getAndRemoveAttr(el, name);
        if (staticValue != null) {
          return JSON.stringify(staticValue)
        }
      }
    }
  
    // note: this only removes the attr from the Array (attrsList) so that it
    // doesn't get processed by processAttrs.
    // By default it does NOT remove it from the map (attrsMap) because the map is
    // needed during codegen.
    function getAndRemoveAttr (
      el,
      name,
      removeFromMap
    ) {
      var val;
      if ((val = el.attrsMap[name]) != null) {
        var list = el.attrsList;
        for (var i = 0, l = list.length; i < l; i++) {
          if (list[i].name === name) {
            list.splice(i, 1);
            break
          }
        }
      }
      if (removeFromMap) {
        delete el.attrsMap[name];
      }
      return val
    }
  
    function getAndRemoveAttrByRegex (
      el,
      name
    ) {
      var list = el.attrsList;
      for (var i = 0, l = list.length; i < l; i++) {
        var attr = list[i];
        if (name.test(attr.name)) {
          list.splice(i, 1);
          return attr
        }
      }
    }
  
    function rangeSetItem (
      item,
      range
    ) {
      if (range) {
        if (range.start != null) {
          item.start = range.start;
        }
        if (range.end != null) {
          item.end = range.end;
        }
      }
      return item
    }
  
    /*  */
  
    /**
     * Cross-platform code generation for component v-model
     */
    function genComponentModel (
      el,
      value,
      modifiers
    ) {
      var ref = modifiers || {};
      var number = ref.number;
      var trim = ref.trim;
  
      var baseValueExpression = '$$v';
      var valueExpression = baseValueExpression;
      if (trim) {
        valueExpression =
          "(typeof " + baseValueExpression + " === 'string'" +
          "? " + baseValueExpression + ".trim()" +
          ": " + baseValueExpression + ")";
      }
      if (number) {
        valueExpression = "_n(" + valueExpression + ")";
      }
      var assignment = genAssignmentCode(value, valueExpression);
  
      el.model = {
        value: ("(" + value + ")"),
        expression: JSON.stringify(value),
        callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
      };
    }
  
    /**
     * Cross-platform codegen helper for generating v-model value assignment code.
     */
    function genAssignmentCode (
      value,
      assignment
    ) {
      var res = parseModel(value);
      if (res.key === null) {
        return (value + "=" + assignment)
      } else {
        return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
      }
    }
  
    /**
     * Parse a v-model expression into a base path and a final key segment.
     * Handles both dot-path and possible square brackets.
     *
     * Possible cases:
     *
     * - test
     * - test[key]
     * - test[test1[key]]
     * - test["a"][key]
     * - xxx.test[a[a].test1[key]]
     * - test.xxx.a["asa"][test1[key]]
     *
     */
  
    var len, str, chr, index$1, expressionPos, expressionEndPos;
  
  
  
    function parseModel (val) {
      // Fix https://github.com/vuejs/vue/pull/7730
      // allow v-model="obj.val " (trailing whitespace)
      val = val.trim();
      len = val.length;
  
      if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
        index$1 = val.lastIndexOf('.');
        if (index$1 > -1) {
          return {
            exp: val.slice(0, index$1),
            key: '"' + val.slice(index$1 + 1) + '"'
          }
        } else {
          return {
            exp: val,
            key: null
          }
        }
      }
  
      str = val;
      index$1 = expressionPos = expressionEndPos = 0;
  
      while (!eof()) {
        chr = next();
        /* istanbul ignore if */
        if (isStringStart(chr)) {
          parseString(chr);
        } else if (chr === 0x5B) {
          parseBracket(chr);
        }
      }
  
      return {
        exp: val.slice(0, expressionPos),
        key: val.slice(expressionPos + 1, expressionEndPos)
      }
    }
  
    function next () {
      return str.charCodeAt(++index$1)
    }
  
    function eof () {
      return index$1 >= len
    }
  
    function isStringStart (chr) {
      return chr === 0x22 || chr === 0x27
    }
  
    function parseBracket (chr) {
      var inBracket = 1;
      expressionPos = index$1;
      while (!eof()) {
        chr = next();
        if (isStringStart(chr)) {
          parseString(chr);
          continue
        }
        if (chr === 0x5B) { inBracket++; }
        if (chr === 0x5D) { inBracket--; }
        if (inBracket === 0) {
          expressionEndPos = index$1;
          break
        }
      }
    }
  
    function parseString (chr) {
      var stringQuote = chr;
      while (!eof()) {
        chr = next();
        if (chr === stringQuote) {
          break
        }
      }
    }
  
    /*  */
  
    var warn$1;
  
    // in some cases, the event used has to be determined at runtime
    // so we used some reserved tokens during compile.
    var RANGE_TOKEN = '__r';
    var CHECKBOX_RADIO_TOKEN = '__c';
  
    function model (
      el,
      dir,
      _warn
    ) {
      warn$1 = _warn;
      var value = dir.value;
      var modifiers = dir.modifiers;
      var tag = el.tag;
      var type = el.attrsMap.type;
  
      {
        // inputs with type="file" are read only and setting the input's
        // value will throw an error.
        if (tag === 'input' && type === 'file') {
          warn$1(
            "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
            "File inputs are read only. Use a v-on:change listener instead.",
            el.rawAttrsMap['v-model']
          );
        }
      }
  
      if (el.component) {
        genComponentModel(el, value, modifiers);
        // component v-model doesn't need extra runtime
        return false
      } else if (tag === 'select') {
        genSelect(el, value, modifiers);
      } else if (tag === 'input' && type === 'checkbox') {
        genCheckboxModel(el, value, modifiers);
      } else if (tag === 'input' && type === 'radio') {
        genRadioModel(el, value, modifiers);
      } else if (tag === 'input' || tag === 'textarea') {
        genDefaultModel(el, value, modifiers);
      } else if (!config.isReservedTag(tag)) {
        genComponentModel(el, value, modifiers);
        // component v-model doesn't need extra runtime
        return false
      } else {
        warn$1(
          "<" + (el.tag) + " v-model=\"" + value + "\">: " +
          "v-model is not supported on this element type. " +
          'If you are working with contenteditable, it\'s recommended to ' +
          'wrap a library dedicated for that purpose inside a custom component.',
          el.rawAttrsMap['v-model']
        );
      }
  
      // ensure runtime directive metadata
      return true
    }
  
    function genCheckboxModel (
      el,
      value,
      modifiers
    ) {
      var number = modifiers && modifiers.number;
      var valueBinding = getBindingAttr(el, 'value') || 'null';
      var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
      var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
      addProp(el, 'checked',
        "Array.isArray(" + value + ")" +
        "?_i(" + value + "," + valueBinding + ")>-1" + (
          trueValueBinding === 'true'
            ? (":(" + value + ")")
            : (":_q(" + value + "," + trueValueBinding + ")")
        )
      );
      addHandler(el, 'change',
        "var $$a=" + value + "," +
            '$$el=$event.target,' +
            "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
        'if(Array.isArray($$a)){' +
          "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
              '$$i=_i($$a,$$v);' +
          "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
          "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
        "}else{" + (genAssignmentCode(value, '$$c')) + "}",
        null, true
      );
    }
  
    function genRadioModel (
      el,
      value,
      modifiers
    ) {
      var number = modifiers && modifiers.number;
      var valueBinding = getBindingAttr(el, 'value') || 'null';
      valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
      addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
      addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
    }
  
    function genSelect (
      el,
      value,
      modifiers
    ) {
      var number = modifiers && modifiers.number;
      var selectedVal = "Array.prototype.filter" +
        ".call($event.target.options,function(o){return o.selected})" +
        ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
        "return " + (number ? '_n(val)' : 'val') + "})";
  
      var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
      var code = "var $$selectedVal = " + selectedVal + ";";
      code = code + " " + (genAssignmentCode(value, assignment));
      addHandler(el, 'change', code, null, true);
    }
  
    function genDefaultModel (
      el,
      value,
      modifiers
    ) {
      var type = el.attrsMap.type;
  
      // warn if v-bind:value conflicts with v-model
      // except for inputs with v-bind:type
      {
        var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
        var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
        if (value$1 && !typeBinding) {
          var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
          warn$1(
            binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
            'because the latter already expands to a value binding internally',
            el.rawAttrsMap[binding]
          );
        }
      }
  
      var ref = modifiers || {};
      var lazy = ref.lazy;
      var number = ref.number;
      var trim = ref.trim;
      var needCompositionGuard = !lazy && type !== 'range';
      var event = lazy
        ? 'change'
        : type === 'range'
          ? RANGE_TOKEN
          : 'input';
  
      var valueExpression = '$event.target.value';
      if (trim) {
        valueExpression = "$event.target.value.trim()";
      }
      if (number) {
        valueExpression = "_n(" + valueExpression + ")";
      }
  
      var code = genAssignmentCode(value, valueExpression);
      if (needCompositionGuard) {
        code = "if($event.target.composing)return;" + code;
      }
  
      addProp(el, 'value', ("(" + value + ")"));
      addHandler(el, event, code, null, true);
      if (trim || number) {
        addHandler(el, 'blur', '$forceUpdate()');
      }
    }
  
    /*  */
  
    // normalize v-model event tokens that can only be determined at runtime.
    // it's important to place the event as the first in the array because
    // the whole point is ensuring the v-model callback gets called before
    // user-attached handlers.
    function normalizeEvents (on) {
      /* istanbul ignore if */
      if (isDef(on[RANGE_TOKEN])) {
        // IE input[type=range] only supports `change` event
        var event = isIE ? 'change' : 'input';
        on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
        delete on[RANGE_TOKEN];
      }
      // This was originally intended to fix #4521 but no longer necessary
      // after 2.5. Keeping it for backwards compat with generated code from < 2.4
      /* istanbul ignore if */
      if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
        on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
        delete on[CHECKBOX_RADIO_TOKEN];
      }
    }
  
    var target$1;
  
    function createOnceHandler$1 (event, handler, capture) {
      var _target = target$1; // save current target element in closure
      return function onceHandler () {
        var res = handler.apply(null, arguments);
        if (res !== null) {
          remove$2(event, onceHandler, capture, _target);
        }
      }
    }
  
    // #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
    // implementation and does not fire microtasks in between event propagation, so
    // safe to exclude.
    var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
  
    function add$1 (
      name,
      handler,
      capture,
      passive
    ) {
      // async edge case #6566: inner click event triggers patch, event handler
      // attached to outer element during patch, and triggered again. This
      // happens because browsers fire microtask ticks between event propagation.
      // the solution is simple: we save the timestamp when a handler is attached,
      // and the handler would only fire if the event passed to it was fired
      // AFTER it was attached.
      if (useMicrotaskFix) {
        var attachedTimestamp = currentFlushTimestamp;
        var original = handler;
        handler = original._wrapper = function (e) {
          if (
            // no bubbling, should always fire.
            // this is just a safety net in case event.timeStamp is unreliable in
            // certain weird environments...
            e.target === e.currentTarget ||
            // event is fired after handler attachment
            e.timeStamp >= attachedTimestamp ||
            // bail for environments that have buggy event.timeStamp implementations
            // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
            // #9681 QtWebEngine event.timeStamp is negative value
            e.timeStamp <= 0 ||
            // #9448 bail if event is fired in another document in a multi-page
            // electron/nw.js app, since event.timeStamp will be using a different
            // starting reference
            e.target.ownerDocument !== document
          ) {
            return original.apply(this, arguments)
          }
        };
      }
      target$1.addEventListener(
        name,
        handler,
        supportsPassive
          ? { capture: capture, passive: passive }
          : capture
      );
    }
  
    function remove$2 (
      name,
      handler,
      capture,
      _target
    ) {
      (_target || target$1).removeEventListener(
        name,
        handler._wrapper || handler,
        capture
      );
    }
  
    function updateDOMListeners (oldVnode, vnode) {
      if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
        return
      }
      var on = vnode.data.on || {};
      var oldOn = oldVnode.data.on || {};
      target$1 = vnode.elm;
      normalizeEvents(on);
      updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
      target$1 = undefined;
    }
  
    var events = {
      create: updateDOMListeners,
      update: updateDOMListeners
    };
  
    /*  */
  
    var svgContainer;
  
    function updateDOMProps (oldVnode, vnode) {
      if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
        return
      }
      var key, cur;
      var elm = vnode.elm;
      var oldProps = oldVnode.data.domProps || {};
      var props = vnode.data.domProps || {};
      // clone observed objects, as the user probably wants to mutate it
      if (isDef(props.__ob__)) {
        props = vnode.data.domProps = extend({}, props);
      }
  
      for (key in oldProps) {
        if (!(key in props)) {
          elm[key] = '';
        }
      }
  
      for (key in props) {
        cur = props[key];
        // ignore children if the node has textContent or innerHTML,
        // as these will throw away existing DOM nodes and cause removal errors
        // on subsequent patches (#3360)
        if (key === 'textContent' || key === 'innerHTML') {
          if (vnode.children) { vnode.children.length = 0; }
          if (cur === oldProps[key]) { continue }
          // #6601 work around Chrome version <= 55 bug where single textNode
          // replaced by innerHTML/textContent retains its parentNode property
          if (elm.childNodes.length === 1) {
            elm.removeChild(elm.childNodes[0]);
          }
        }
  
        if (key === 'value' && elm.tagName !== 'PROGRESS') {
          // store value as _value as well since
          // non-string values will be stringified
          elm._value = cur;
          // avoid resetting cursor position when value is the same
          var strCur = isUndef(cur) ? '' : String(cur);
          if (shouldUpdateValue(elm, strCur)) {
            elm.value = strCur;
          }
        } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
          // IE doesn't support innerHTML for SVG elements
          svgContainer = svgContainer || document.createElement('div');
          svgContainer.innerHTML = "<svg>" + cur + "</svg>";
          var svg = svgContainer.firstChild;
          while (elm.firstChild) {
            elm.removeChild(elm.firstChild);
          }
          while (svg.firstChild) {
            elm.appendChild(svg.firstChild);
          }
        } else if (
          // skip the update if old and new VDOM state is the same.
          // `value` is handled separately because the DOM value may be temporarily
          // out of sync with VDOM state due to focus, composition and modifiers.
          // This  #4521 by skipping the unnecessary `checked` update.
          cur !== oldProps[key]
        ) {
          // some property updates can throw
          // e.g. `value` on <progress> w/ non-finite value
          try {
            elm[key] = cur;
          } catch (e) {}
        }
      }
    }
  
    // check platforms/web/util/attrs.js acceptValue
  
  
    function shouldUpdateValue (elm, checkVal) {
      return (!elm.composing && (
        elm.tagName === 'OPTION' ||
        isNotInFocusAndDirty(elm, checkVal) ||
        isDirtyWithModifiers(elm, checkVal)
      ))
    }
  
    function isNotInFocusAndDirty (elm, checkVal) {
      // return true when textbox (.number and .trim) loses focus and its value is
      // not equal to the updated value
      var notInFocus = true;
      // #6157
      // work around IE bug when accessing document.activeElement in an iframe
      try { notInFocus = document.activeElement !== elm; } catch (e) {}
      return notInFocus && elm.value !== checkVal
    }
  
    function isDirtyWithModifiers (elm, newVal) {
      var value = elm.value;
      var modifiers = elm._vModifiers; // injected by v-model runtime
      if (isDef(modifiers)) {
        if (modifiers.number) {
          return toNumber(value) !== toNumber(newVal)
        }
        if (modifiers.trim) {
          return value.trim() !== newVal.trim()
        }
      }
      return value !== newVal
    }
  
    var domProps = {
      create: updateDOMProps,
      update: updateDOMProps
    };
  
    /*  */
  
    var parseStyleText = cached(function (cssText) {
      var res = {};
      var listDelimiter = /;(?![^(]*\))/g;
      var propertyDelimiter = /:(.+)/;
      cssText.split(listDelimiter).forEach(function (item) {
        if (item) {
          var tmp = item.split(propertyDelimiter);
          tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
        }
      });
      return res
    });
  
    // merge static and dynamic style data on the same vnode
    function normalizeStyleData (data) {
      var style = normalizeStyleBinding(data.style);
      // static style is pre-processed into an object during compilation
      // and is always a fresh object, so it's safe to merge into it
      return data.staticStyle
        ? extend(data.staticStyle, style)
        : style
    }
  
    // normalize possible array / string values into Object
    function normalizeStyleBinding (bindingStyle) {
      if (Array.isArray(bindingStyle)) {
        return toObject(bindingStyle)
      }
      if (typeof bindingStyle === 'string') {
        return parseStyleText(bindingStyle)
      }
      return bindingStyle
    }
  
    /**
     * parent component style should be after child's
     * so that parent component's style could override it
     */
    function getStyle (vnode, checkChild) {
      var res = {};
      var styleData;
  
      if (checkChild) {
        var childNode = vnode;
        while (childNode.componentInstance) {
          childNode = childNode.componentInstance._vnode;
          if (
            childNode && childNode.data &&
            (styleData = normalizeStyleData(childNode.data))
          ) {
            extend(res, styleData);
          }
        }
      }
  
      if ((styleData = normalizeStyleData(vnode.data))) {
        extend(res, styleData);
      }
  
      var parentNode = vnode;
      while ((parentNode = parentNode.parent)) {
        if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
          extend(res, styleData);
        }
      }
      return res
    }
  
    /*  */
  
    var cssVarRE = /^--/;
    var importantRE = /\s*!important$/;
    var setProp = function (el, name, val) {
      /* istanbul ignore if */
      if (cssVarRE.test(name)) {
        el.style.setProperty(name, val);
      } else if (importantRE.test(val)) {
        el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
      } else {
        var normalizedName = normalize(name);
        if (Array.isArray(val)) {
          // Support values array created by autoprefixer, e.g.
          // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
          // Set them one by one, and the browser will only set those it can recognize
          for (var i = 0, len = val.length; i < len; i++) {
            el.style[normalizedName] = val[i];
          }
        } else {
          el.style[normalizedName] = val;
        }
      }
    };
  
    var vendorNames = ['Webkit', 'Moz', 'ms'];
  
    var emptyStyle;
    var normalize = cached(function (prop) {
      emptyStyle = emptyStyle || document.createElement('div').style;
      prop = camelize(prop);
      if (prop !== 'filter' && (prop in emptyStyle)) {
        return prop
      }
      var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
      for (var i = 0; i < vendorNames.length; i++) {
        var name = vendorNames[i] + capName;
        if (name in emptyStyle) {
          return name
        }
      }
    });
  
    function updateStyle (oldVnode, vnode) {
      var data = vnode.data;
      var oldData = oldVnode.data;
  
      if (isUndef(data.staticStyle) && isUndef(data.style) &&
        isUndef(oldData.staticStyle) && isUndef(oldData.style)
      ) {
        return
      }
  
      var cur, name;
      var el = vnode.elm;
      var oldStaticStyle = oldData.staticStyle;
      var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
  
      // if static style exists, stylebinding already merged into it when doing normalizeStyleData
      var oldStyle = oldStaticStyle || oldStyleBinding;
  
      var style = normalizeStyleBinding(vnode.data.style) || {};
  
      // store normalized style under a different key for next diff
      // make sure to clone it if it's reactive, since the user likely wants
      // to mutate it.
      vnode.data.normalizedStyle = isDef(style.__ob__)
        ? extend({}, style)
        : style;
  
      var newStyle = getStyle(vnode, true);
  
      for (name in oldStyle) {
        if (isUndef(newStyle[name])) {
          setProp(el, name, '');
        }
      }
      for (name in newStyle) {
        cur = newStyle[name];
        if (cur !== oldStyle[name]) {
          // ie9 setting to null has no effect, must use empty string
          setProp(el, name, cur == null ? '' : cur);
        }
      }
    }
  
    var style = {
      create: updateStyle,
      update: updateStyle
    };
  
    /*  */
  
    var whitespaceRE = /\s+/;
  
    /**
     * Add class with compatibility for SVG since classList is not supported on
     * SVG elements in IE
     */
    function addClass (el, cls) {
      /* istanbul ignore if */
      if (!cls || !(cls = cls.trim())) {
        return
      }
  
      /* istanbul ignore else */
      if (el.classList) {
        if (cls.indexOf(' ') > -1) {
          cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
        } else {
          el.classList.add(cls);
        }
      } else {
        var cur = " " + (el.getAttribute('class') || '') + " ";
        if (cur.indexOf(' ' + cls + ' ') < 0) {
          el.setAttribute('class', (cur + cls).trim());
        }
      }
    }
  
    /**
     * Remove class with compatibility for SVG since classList is not supported on
     * SVG elements in IE
     */
    function removeClass (el, cls) {
      /* istanbul ignore if */
      if (!cls || !(cls = cls.trim())) {
        return
      }
  
      /* istanbul ignore else */
      if (el.classList) {
        if (cls.indexOf(' ') > -1) {
          cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
        } else {
          el.classList.remove(cls);
        }
        if (!el.classList.length) {
          el.removeAttribute('class');
        }
      } else {
        var cur = " " + (el.getAttribute('class') || '') + " ";
        var tar = ' ' + cls + ' ';
        while (cur.indexOf(tar) >= 0) {
          cur = cur.replace(tar, ' ');
        }
        cur = cur.trim();
        if (cur) {
          el.setAttribute('class', cur);
        } else {
          el.removeAttribute('class');
        }
      }
    }
  
    /*  */
  
    function resolveTransition (def$$1) {
      if (!def$$1) {
        return
      }
      /* istanbul ignore else */
      if (typeof def$$1 === 'object') {
        var res = {};
        if (def$$1.css !== false) {
          extend(res, autoCssTransition(def$$1.name || 'v'));
        }
        extend(res, def$$1);
        return res
      } else if (typeof def$$1 === 'string') {
        return autoCssTransition(def$$1)
      }
    }
  
    var autoCssTransition = cached(function (name) {
      return {
        enterClass: (name + "-enter"),
        enterToClass: (name + "-enter-to"),
        enterActiveClass: (name + "-enter-active"),
        leaveClass: (name + "-leave"),
        leaveToClass: (name + "-leave-to"),
        leaveActiveClass: (name + "-leave-active")
      }
    });
  
    var hasTransition = inBrowser && !isIE9;
    var TRANSITION = 'transition';
    var ANIMATION = 'animation';
  
    // Transition property/event sniffing
    var transitionProp = 'transition';
    var transitionEndEvent = 'transitionend';
    var animationProp = 'animation';
    var animationEndEvent = 'animationend';
    if (hasTransition) {
      /* istanbul ignore if */
      if (window.ontransitionend === undefined &&
        window.onwebkittransitionend !== undefined
      ) {
        transitionProp = 'WebkitTransition';
        transitionEndEvent = 'webkitTransitionEnd';
      }
      if (window.onanimationend === undefined &&
        window.onwebkitanimationend !== undefined
      ) {
        animationProp = 'WebkitAnimation';
        animationEndEvent = 'webkitAnimationEnd';
      }
    }
  
    // binding to window is necessary to make hot reload work in IE in strict mode
    var raf = inBrowser
      ? window.requestAnimationFrame
        ? window.requestAnimationFrame.bind(window)
        : setTimeout
      : /* istanbul ignore next */ function (fn) { return fn(); };
  
    function nextFrame (fn) {
      raf(function () {
        raf(fn);
      });
    }
  
    function addTransitionClass (el, cls) {
      var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
      if (transitionClasses.indexOf(cls) < 0) {
        transitionClasses.push(cls);
        addClass(el, cls);
      }
    }
  
    function removeTransitionClass (el, cls) {
      if (el._transitionClasses) {
        remove(el._transitionClasses, cls);
      }
      removeClass(el, cls);
    }
  
    function whenTransitionEnds (
      el,
      expectedType,
      cb
    ) {
      var ref = getTransitionInfo(el, expectedType);
      var type = ref.type;
      var timeout = ref.timeout;
      var propCount = ref.propCount;
      if (!type) { return cb() }
      var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
      var ended = 0;
      var end = function () {
        el.removeEventListener(event, onEnd);
        cb();
      };
      var onEnd = function (e) {
        if (e.target === el) {
          if (++ended >= propCount) {
            end();
          }
        }
      };
      setTimeout(function () {
        if (ended < propCount) {
          end();
        }
      }, timeout + 1);
      el.addEventListener(event, onEnd);
    }
  
    var transformRE = /\b(transform|all)(,|$)/;
  
    function getTransitionInfo (el, expectedType) {
      var styles = window.getComputedStyle(el);
      // JSDOM may return undefined for transition properties
      var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
      var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
      var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
      var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
      var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
      var animationTimeout = getTimeout(animationDelays, animationDurations);
  
      var type;
      var timeout = 0;
      var propCount = 0;
      /* istanbul ignore if */
      if (expectedType === TRANSITION) {
        if (transitionTimeout > 0) {
          type = TRANSITION;
          timeout = transitionTimeout;
          propCount = transitionDurations.length;
        }
      } else if (expectedType === ANIMATION) {
        if (animationTimeout > 0) {
          type = ANIMATION;
          timeout = animationTimeout;
          propCount = animationDurations.length;
        }
      } else {
        timeout = Math.max(transitionTimeout, animationTimeout);
        type = timeout > 0
          ? transitionTimeout > animationTimeout
            ? TRANSITION
            : ANIMATION
          : null;
        propCount = type
          ? type === TRANSITION
            ? transitionDurations.length
            : animationDurations.length
          : 0;
      }
      var hasTransform =
        type === TRANSITION &&
        transformRE.test(styles[transitionProp + 'Property']);
      return {
        type: type,
        timeout: timeout,
        propCount: propCount,
        hasTransform: hasTransform
      }
    }
  
    function getTimeout (delays, durations) {
      /* istanbul ignore next */
      while (delays.length < durations.length) {
        delays = delays.concat(delays);
      }
  
      return Math.max.apply(null, durations.map(function (d, i) {
        return toMs(d) + toMs(delays[i])
      }))
    }
  
    // Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
    // in a locale-dependent way, using a comma instead of a dot.
    // If comma is not replaced with a dot, the input will be rounded down (i.e. acting
    // as a floor function) causing unexpected behaviors
    function toMs (s) {
      return Number(s.slice(0, -1).replace(',', '.')) * 1000
    }
  
    /*  */
  
    function enter (vnode, toggleDisplay) {
      var el = vnode.elm;
  
      // call leave callback now
      if (isDef(el._leaveCb)) {
        el._leaveCb.cancelled = true;
        el._leaveCb();
      }
  
      var data = resolveTransition(vnode.data.transition);
      if (isUndef(data)) {
        return
      }
  
      /* istanbul ignore if */
      if (isDef(el._enterCb) || el.nodeType !== 1) {
        return
      }
  
      var css = data.css;
      var type = data.type;
      var enterClass = data.enterClass;
      var enterToClass = data.enterToClass;
      var enterActiveClass = data.enterActiveClass;
      var appearClass = data.appearClass;
      var appearToClass = data.appearToClass;
      var appearActiveClass = data.appearActiveClass;
      var beforeEnter = data.beforeEnter;
      var enter = data.enter;
      var afterEnter = data.afterEnter;
      var enterCancelled = data.enterCancelled;
      var beforeAppear = data.beforeAppear;
      var appear = data.appear;
      var afterAppear = data.afterAppear;
      var appearCancelled = data.appearCancelled;
      var duration = data.duration;
  
      // activeInstance will always be the <transition> component managing this
      // transition. One edge case to check is when the <transition> is placed
      // as the root node of a child component. In that case we need to check
      // <transition>'s parent for appear check.
      var context = activeInstance;
      var transitionNode = activeInstance.$vnode;
      while (transitionNode && transitionNode.parent) {
        context = transitionNode.context;
        transitionNode = transitionNode.parent;
      }
  
      var isAppear = !context._isMounted || !vnode.isRootInsert;
  
      if (isAppear && !appear && appear !== '') {
        return
      }
  
      var startClass = isAppear && appearClass
        ? appearClass
        : enterClass;
      var activeClass = isAppear && appearActiveClass
        ? appearActiveClass
        : enterActiveClass;
      var toClass = isAppear && appearToClass
        ? appearToClass
        : enterToClass;
  
      var beforeEnterHook = isAppear
        ? (beforeAppear || beforeEnter)
        : beforeEnter;
      var enterHook = isAppear
        ? (typeof appear === 'function' ? appear : enter)
        : enter;
      var afterEnterHook = isAppear
        ? (afterAppear || afterEnter)
        : afterEnter;
      var enterCancelledHook = isAppear
        ? (appearCancelled || enterCancelled)
        : enterCancelled;
  
      var explicitEnterDuration = toNumber(
        isObject(duration)
          ? duration.enter
          : duration
      );
  
      if (explicitEnterDuration != null) {
        checkDuration(explicitEnterDuration, 'enter', vnode);
      }
  
      var expectsCSS = css !== false && !isIE9;
      var userWantsControl = getHookArgumentsLength(enterHook);
  
      var cb = el._enterCb = once(function () {
        if (expectsCSS) {
          removeTransitionClass(el, toClass);
          removeTransitionClass(el, activeClass);
        }
        if (cb.cancelled) {
          if (expectsCSS) {
            removeTransitionClass(el, startClass);
          }
          enterCancelledHook && enterCancelledHook(el);
        } else {
          afterEnterHook && afterEnterHook(el);
        }
        el._enterCb = null;
      });
  
      if (!vnode.data.show) {
        // remove pending leave element on enter by injecting an insert hook
        mergeVNodeHook(vnode, 'insert', function () {
          var parent = el.parentNode;
          var pendingNode = parent && parent._pending && parent._pending[vnode.key];
          if (pendingNode &&
            pendingNode.tag === vnode.tag &&
            pendingNode.elm._leaveCb
          ) {
            pendingNode.elm._leaveCb();
          }
          enterHook && enterHook(el, cb);
        });
      }
  
      // start enter transition
      beforeEnterHook && beforeEnterHook(el);
      if (expectsCSS) {
        addTransitionClass(el, startClass);
        addTransitionClass(el, activeClass);
        nextFrame(function () {
          removeTransitionClass(el, startClass);
          if (!cb.cancelled) {
            addTransitionClass(el, toClass);
            if (!userWantsControl) {
              if (isValidDuration(explicitEnterDuration)) {
                setTimeout(cb, explicitEnterDuration);
              } else {
                whenTransitionEnds(el, type, cb);
              }
            }
          }
        });
      }
  
      if (vnode.data.show) {
        toggleDisplay && toggleDisplay();
        enterHook && enterHook(el, cb);
      }
  
      if (!expectsCSS && !userWantsControl) {
        cb();
      }
    }
  
    function leave (vnode, rm) {
      var el = vnode.elm;
  
      // call enter callback now
      if (isDef(el._enterCb)) {
        el._enterCb.cancelled = true;
        el._enterCb();
      }
  
      var data = resolveTransition(vnode.data.transition);
      if (isUndef(data) || el.nodeType !== 1) {
        return rm()
      }
  
      /* istanbul ignore if */
      if (isDef(el._leaveCb)) {
        return
      }
  
      var css = data.css;
      var type = data.type;
      var leaveClass = data.leaveClass;
      var leaveToClass = data.leaveToClass;
      var leaveActiveClass = data.leaveActiveClass;
      var beforeLeave = data.beforeLeave;
      var leave = data.leave;
      var afterLeave = data.afterLeave;
      var leaveCancelled = data.leaveCancelled;
      var delayLeave = data.delayLeave;
      var duration = data.duration;
  
      var expectsCSS = css !== false && !isIE9;
      var userWantsControl = getHookArgumentsLength(leave);
  
      var explicitLeaveDuration = toNumber(
        isObject(duration)
          ? duration.leave
          : duration
      );
  
      if (isDef(explicitLeaveDuration)) {
        checkDuration(explicitLeaveDuration, 'leave', vnode);
      }
  
      var cb = el._leaveCb = once(function () {
        if (el.parentNode && el.parentNode._pending) {
          el.parentNode._pending[vnode.key] = null;
        }
        if (expectsCSS) {
          removeTransitionClass(el, leaveToClass);
          removeTransitionClass(el, leaveActiveClass);
        }
        if (cb.cancelled) {
          if (expectsCSS) {
            removeTransitionClass(el, leaveClass);
          }
          leaveCancelled && leaveCancelled(el);
        } else {
          rm();
          afterLeave && afterLeave(el);
        }
        el._leaveCb = null;
      });
  
      if (delayLeave) {
        delayLeave(performLeave);
      } else {
        performLeave();
      }
  
      function performLeave () {
        // the delayed leave may have already been cancelled
        if (cb.cancelled) {
          return
        }
        // record leaving element
        if (!vnode.data.show && el.parentNode) {
          (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
        }
        beforeLeave && beforeLeave(el);
        if (expectsCSS) {
          addTransitionClass(el, leaveClass);
          addTransitionClass(el, leaveActiveClass);
          nextFrame(function () {
            removeTransitionClass(el, leaveClass);
            if (!cb.cancelled) {
              addTransitionClass(el, leaveToClass);
              if (!userWantsControl) {
                if (isValidDuration(explicitLeaveDuration)) {
                  setTimeout(cb, explicitLeaveDuration);
                } else {
                  whenTransitionEnds(el, type, cb);
                }
              }
            }
          });
        }
        leave && leave(el, cb);
        if (!expectsCSS && !userWantsControl) {
          cb();
        }
      }
    }
  
    // only used in dev mode
    function checkDuration (val, name, vnode) {
      if (typeof val !== 'number') {
        warn(
          "<transition> explicit " + name + " duration is not a valid number - " +
          "got " + (JSON.stringify(val)) + ".",
          vnode.context
        );
      } else if (isNaN(val)) {
        warn(
          "<transition> explicit " + name + " duration is NaN - " +
          'the duration expression might be incorrect.',
          vnode.context
        );
      }
    }
  
    function isValidDuration (val) {
      return typeof val === 'number' && !isNaN(val)
    }
  
    /**
     * Normalize a transition hook's argument length. The hook may be:
     * - a merged hook (invoker) with the original in .fns
     * - a wrapped component method (check ._length)
     * - a plain function (.length)
     */
    function getHookArgumentsLength (fn) {
      if (isUndef(fn)) {
        return false
      }
      var invokerFns = fn.fns;
      if (isDef(invokerFns)) {
        // invoker
        return getHookArgumentsLength(
          Array.isArray(invokerFns)
            ? invokerFns[0]
            : invokerFns
        )
      } else {
        return (fn._length || fn.length) > 1
      }
    }
  
    function _enter (_, vnode) {
      if (vnode.data.show !== true) {
        enter(vnode);
      }
    }
  
    var transition = inBrowser ? {
      create: _enter,
      activate: _enter,
      remove: function remove$$1 (vnode, rm) {
        /* istanbul ignore else */
        if (vnode.data.show !== true) {
          leave(vnode, rm);
        } else {
          rm();
        }
      }
    } : {};
  
    var platformModules = [
      attrs,
      klass,
      events,
      domProps,
      style,
      transition
    ];
  
    /*  */
  
    // the directive module should be applied last, after all
    // built-in modules have been applied.
    var modules = platformModules.concat(baseModules);
  
    var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
  
    /**
     * Not type checking this file because flow doesn't like attaching
     * properties to Elements.
     */
  
    /* istanbul ignore if */
    if (isIE9) {
      // http://www.matts411.com/post/internet-explorer-9-oninput/
      document.addEventListener('selectionchange', function () {
        var el = document.activeElement;
        if (el && el.vmodel) {
          trigger(el, 'input');
        }
      });
    }
  
    var directive = {
      inserted: function inserted (el, binding, vnode, oldVnode) {
        if (vnode.tag === 'select') {
          // #6903
          if (oldVnode.elm && !oldVnode.elm._vOptions) {
            mergeVNodeHook(vnode, 'postpatch', function () {
              directive.componentUpdated(el, binding, vnode);
            });
          } else {
            setSelected(el, binding, vnode.context);
          }
          el._vOptions = [].map.call(el.options, getValue);
        } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
          el._vModifiers = binding.modifiers;
          if (!binding.modifiers.lazy) {
            el.addEventListener('compositionstart', onCompositionStart);
            el.addEventListener('compositionend', onCompositionEnd);
            // Safari < 10.2 & UIWebView doesn't fire compositionend when
            // switching focus before confirming composition choice
            // this also fixes the issue where some browsers e.g. iOS Chrome
            // fires "change" instead of "input" on autocomplete.
            el.addEventListener('change', onCompositionEnd);
            /* istanbul ignore if */
            if (isIE9) {
              el.vmodel = true;
            }
          }
        }
      },
  
      componentUpdated: function componentUpdated (el, binding, vnode) {
        if (vnode.tag === 'select') {
          setSelected(el, binding, vnode.context);
          // in case the options rendered by v-for have changed,
          // it's possible that the value is out-of-sync with the rendered options.
          // detect such cases and filter out values that no longer has a matching
          // option in the DOM.
          var prevOptions = el._vOptions;
          var curOptions = el._vOptions = [].map.call(el.options, getValue);
          if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
            // trigger change event if
            // no matching option found for at least one value
            var needReset = el.multiple
              ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
              : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
            if (needReset) {
              trigger(el, 'change');
            }
          }
        }
      }
    };
  
    function setSelected (el, binding, vm) {
      actuallySetSelected(el, binding, vm);
      /* istanbul ignore if */
      if (isIE || isEdge) {
        setTimeout(function () {
          actuallySetSelected(el, binding, vm);
        }, 0);
      }
    }
  
    function actuallySetSelected (el, binding, vm) {
      var value = binding.value;
      var isMultiple = el.multiple;
      if (isMultiple && !Array.isArray(value)) {
        warn(
          "<select multiple v-model=\"" + (binding.expression) + "\"> " +
          "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
          vm
        );
        return
      }
      var selected, option;
      for (var i = 0, l = el.options.length; i < l; i++) {
        option = el.options[i];
        if (isMultiple) {
          selected = looseIndexOf(value, getValue(option)) > -1;
          if (option.selected !== selected) {
            option.selected = selected;
          }
        } else {
          if (looseEqual(getValue(option), value)) {
            if (el.selectedIndex !== i) {
              el.selectedIndex = i;
            }
            return
          }
        }
      }
      if (!isMultiple) {
        el.selectedIndex = -1;
      }
    }
  
    function hasNoMatchingOption (value, options) {
      return options.every(function (o) { return !looseEqual(o, value); })
    }
  
    function getValue (option) {
      return '_value' in option
        ? option._value
        : option.value
    }
  
    function onCompositionStart (e) {
      e.target.composing = true;
    }
  
    function onCompositionEnd (e) {
      // prevent triggering an input event for no reason
      if (!e.target.composing) { return }
      e.target.composing = false;
      trigger(e.target, 'input');
    }
  
    function trigger (el, type) {
      var e = document.createEvent('HTMLEvents');
      e.initEvent(type, true, true);
      el.dispatchEvent(e);
    }
  
    /*  */
  
    // recursively search for possible transition defined inside the component root
    function locateNode (vnode) {
      return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
        ? locateNode(vnode.componentInstance._vnode)
        : vnode
    }
  
    var show = {
      bind: function bind (el, ref, vnode) {
        var value = ref.value;
  
        vnode = locateNode(vnode);
        var transition$$1 = vnode.data && vnode.data.transition;
        var originalDisplay = el.__vOriginalDisplay =
          el.style.display === 'none' ? '' : el.style.display;
        if (value && transition$$1) {
          vnode.data.show = true;
          enter(vnode, function () {
            el.style.display = originalDisplay;
          });
        } else {
          el.style.display = value ? originalDisplay : 'none';
        }
      },
  
      update: function update (el, ref, vnode) {
        var value = ref.value;
        var oldValue = ref.oldValue;
  
        /* istanbul ignore if */
        if (!value === !oldValue) { return }
        vnode = locateNode(vnode);
        var transition$$1 = vnode.data && vnode.data.transition;
        if (transition$$1) {
          vnode.data.show = true;
          if (value) {
            enter(vnode, function () {
              el.style.display = el.__vOriginalDisplay;
            });
          } else {
            leave(vnode, function () {
              el.style.display = 'none';
            });
          }
        } else {
          el.style.display = value ? el.__vOriginalDisplay : 'none';
        }
      },
  
      unbind: function unbind (
        el,
        binding,
        vnode,
        oldVnode,
        isDestroy
      ) {
        if (!isDestroy) {
          el.style.display = el.__vOriginalDisplay;
        }
      }
    };
  
    var platformDirectives = {
      model: directive,
      show: show
    };
  
    /*  */
  
    var transitionProps = {
      name: String,
      appear: Boolean,
      css: Boolean,
      mode: String,
      type: String,
      enterClass: String,
      leaveClass: String,
      enterToClass: String,
      leaveToClass: String,
      enterActiveClass: String,
      leaveActiveClass: String,
      appearClass: String,
      appearActiveClass: String,
      appearToClass: String,
      duration: [Number, String, Object]
    };
  
    // in case the child is also an abstract component, e.g. <keep-alive>
    // we want to recursively retrieve the real component to be rendered
    function getRealChild (vnode) {
      var compOptions = vnode && vnode.componentOptions;
      if (compOptions && compOptions.Ctor.options.abstract) {
        return getRealChild(getFirstComponentChild(compOptions.children))
      } else {
        return vnode
      }
    }
  
    function extractTransitionData (comp) {
      var data = {};
      var options = comp.$options;
      // props
      for (var key in options.propsData) {
        data[key] = comp[key];
      }
      // events.
      // extract listeners and pass them directly to the transition methods
      var listeners = options._parentListeners;
      for (var key$1 in listeners) {
        data[camelize(key$1)] = listeners[key$1];
      }
      return data
    }
  
    function placeholder (h, rawChild) {
      if (/\d-keep-alive$/.test(rawChild.tag)) {
        return h('keep-alive', {
          props: rawChild.componentOptions.propsData
        })
      }
    }
  
    function hasParentTransition (vnode) {
      while ((vnode = vnode.parent)) {
        if (vnode.data.transition) {
          return true
        }
      }
    }
  
    function isSameChild (child, oldChild) {
      return oldChild.key === child.key && oldChild.tag === child.tag
    }
  
    var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
  
    var isVShowDirective = function (d) { return d.name === 'show'; };
  
    var Transition = {
      name: 'transition',
      props: transitionProps,
      abstract: true,
  
      render: function render (h) {
        var this$1 = this;
  
        var children = this.$slots.default;
        if (!children) {
          return
        }
  
        // filter out text nodes (possible whitespaces)
        children = children.filter(isNotTextNode);
        /* istanbul ignore if */
        if (!children.length) {
          return
        }
  
        // warn multiple elements
        if (children.length > 1) {
          warn(
            '<transition> can only be used on a single element. Use ' +
            '<transition-group> for lists.',
            this.$parent
          );
        }
  
        var mode = this.mode;
  
        // warn invalid mode
        if (mode && mode !== 'in-out' && mode !== 'out-in'
        ) {
          warn(
            'invalid <transition> mode: ' + mode,
            this.$parent
          );
        }
  
        var rawChild = children[0];
  
        // if this is a component root node and the component's
        // parent container node also has transition, skip.
        if (hasParentTransition(this.$vnode)) {
          return rawChild
        }
  
        // apply transition data to child
        // use getRealChild() to ignore abstract components e.g. keep-alive
        var child = getRealChild(rawChild);
        /* istanbul ignore if */
        if (!child) {
          return rawChild
        }
  
        if (this._leaving) {
          return placeholder(h, rawChild)
        }
  
        // ensure a key that is unique to the vnode type and to this transition
        // component instance. This key will be used to remove pending leaving nodes
        // during entering.
        var id = "__transition-" + (this._uid) + "-";
        child.key = child.key == null
          ? child.isComment
            ? id + 'comment'
            : id + child.tag
          : isPrimitive(child.key)
            ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
            : child.key;
  
        var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
        var oldRawChild = this._vnode;
        var oldChild = getRealChild(oldRawChild);
  
        // mark v-show
        // so that the transition module can hand over the control to the directive
        if (child.data.directives && child.data.directives.some(isVShowDirective)) {
          child.data.show = true;
        }
  
        if (
          oldChild &&
          oldChild.data &&
          !isSameChild(child, oldChild) &&
          !isAsyncPlaceholder(oldChild) &&
          // #6687 component root is a comment node
          !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
        ) {
          // replace old child transition data with fresh one
          // important for dynamic transitions!
          var oldData = oldChild.data.transition = extend({}, data);
          // handle transition mode
          if (mode === 'out-in') {
            // return placeholder node and queue update when leave finishes
            this._leaving = true;
            mergeVNodeHook(oldData, 'afterLeave', function () {
              this$1._leaving = false;
              this$1.$forceUpdate();
            });
            return placeholder(h, rawChild)
          } else if (mode === 'in-out') {
            if (isAsyncPlaceholder(child)) {
              return oldRawChild
            }
            var delayedLeave;
            var performLeave = function () { delayedLeave(); };
            mergeVNodeHook(data, 'afterEnter', performLeave);
            mergeVNodeHook(data, 'enterCancelled', performLeave);
            mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
          }
        }
  
        return rawChild
      }
    };
  
    /*  */
  
    var props = extend({
      tag: String,
      moveClass: String
    }, transitionProps);
  
    delete props.mode;
  
    var TransitionGroup = {
      props: props,
  
      beforeMount: function beforeMount () {
        var this$1 = this;
  
        var update = this._update;
        this._update = function (vnode, hydrating) {
          var restoreActiveInstance = setActiveInstance(this$1);
          // force removing pass
          this$1.__patch__(
            this$1._vnode,
            this$1.kept,
            false, // hydrating
            true // removeOnly (!important, avoids unnecessary moves)
          );
          this$1._vnode = this$1.kept;
          restoreActiveInstance();
          update.call(this$1, vnode, hydrating);
        };
      },
  
      render: function render (h) {
        var tag = this.tag || this.$vnode.data.tag || 'span';
        var map = Object.create(null);
        var prevChildren = this.prevChildren = this.children;
        var rawChildren = this.$slots.default || [];
        var children = this.children = [];
        var transitionData = extractTransitionData(this);
  
        for (var i = 0; i < rawChildren.length; i++) {
          var c = rawChildren[i];
          if (c.tag) {
            if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
              children.push(c);
              map[c.key] = c
              ;(c.data || (c.data = {})).transition = transitionData;
            } else {
              var opts = c.componentOptions;
              var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
              warn(("<transition-group> children must be keyed: <" + name + ">"));
            }
          }
        }
  
        if (prevChildren) {
          var kept = [];
          var removed = [];
          for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
            var c$1 = prevChildren[i$1];
            c$1.data.transition = transitionData;
            c$1.data.pos = c$1.elm.getBoundingClientRect();
            if (map[c$1.key]) {
              kept.push(c$1);
            } else {
              removed.push(c$1);
            }
          }
          this.kept = h(tag, null, kept);
          this.removed = removed;
        }
  
        return h(tag, null, children)
      },
  
      updated: function updated () {
        var children = this.prevChildren;
        var moveClass = this.moveClass || ((this.name || 'v') + '-move');
        if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
          return
        }
  
        // we divide the work into three loops to avoid mixing DOM reads and writes
        // in each iteration - which helps prevent layout thrashing.
        children.forEach(callPendingCbs);
        children.forEach(recordPosition);
        children.forEach(applyTranslation);
  
        // force reflow to put everything in position
        // assign to this to avoid being removed in tree-shaking
        // $flow-disable-line
        this._reflow = document.body.offsetHeight;
  
        children.forEach(function (c) {
          if (c.data.moved) {
            var el = c.elm;
            var s = el.style;
            addTransitionClass(el, moveClass);
            s.transform = s.WebkitTransform = s.transitionDuration = '';
            el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
              if (e && e.target !== el) {
                return
              }
              if (!e || /transform$/.test(e.propertyName)) {
                el.removeEventListener(transitionEndEvent, cb);
                el._moveCb = null;
                removeTransitionClass(el, moveClass);
              }
            });
          }
        });
      },
  
      methods: {
        hasMove: function hasMove (el, moveClass) {
          /* istanbul ignore if */
          if (!hasTransition) {
            return false
          }
          /* istanbul ignore if */
          if (this._hasMove) {
            return this._hasMove
          }
          // Detect whether an element with the move class applied has
          // CSS transitions. Since the element may be inside an entering
          // transition at this very moment, we make a clone of it and remove
          // all other transition classes applied to ensure only the move class
          // is applied.
          var clone = el.cloneNode();
          if (el._transitionClasses) {
            el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
          }
          addClass(clone, moveClass);
          clone.style.display = 'none';
          this.$el.appendChild(clone);
          var info = getTransitionInfo(clone);
          this.$el.removeChild(clone);
          return (this._hasMove = info.hasTransform)
        }
      }
    };
  
    function callPendingCbs (c) {
      /* istanbul ignore if */
      if (c.elm._moveCb) {
        c.elm._moveCb();
      }
      /* istanbul ignore if */
      if (c.elm._enterCb) {
        c.elm._enterCb();
      }
    }
  
    function recordPosition (c) {
      c.data.newPos = c.elm.getBoundingClientRect();
    }
  
    function applyTranslation (c) {
      var oldPos = c.data.pos;
      var newPos = c.data.newPos;
      var dx = oldPos.left - newPos.left;
      var dy = oldPos.top - newPos.top;
      if (dx || dy) {
        c.data.moved = true;
        var s = c.elm.style;
        s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
        s.transitionDuration = '0s';
      }
    }
  
    var platformComponents = {
      Transition: Transition,
      TransitionGroup: TransitionGroup
    };
  
    /*  */
  
    // install platform specific utils
    Vue.config.mustUseProp = mustUseProp;
    Vue.config.isReservedTag = isReservedTag;
    Vue.config.isReservedAttr = isReservedAttr;
    Vue.config.getTagNamespace = getTagNamespace;
    Vue.config.isUnknownElement = isUnknownElement;
  
    // install platform runtime directives & components
    extend(Vue.options.directives, platformDirectives);
    extend(Vue.options.components, platformComponents);
  
    // install platform patch function
    Vue.prototype.__patch__ = inBrowser ? patch : noop;
  
    // public mount method
    Vue.prototype.$mount = function (
      el,
      hydrating
    ) {
      el = el && inBrowser ? query(el) : undefined;
      return mountComponent(this, el, hydrating)
    };
  
    // devtools global hook
    /* istanbul ignore next */
    if (inBrowser) {
      setTimeout(function () {
        if (config.devtools) {
          if (devtools) {
            devtools.emit('init', Vue);
          } else {
            console[console.info ? 'info' : 'log'](
              'Download the Vue Devtools extension for a better development experience:\n' +
              'https://github.com/vuejs/vue-devtools'
            );
          }
        }
        if (config.productionTip !== false &&
          typeof console !== 'undefined'
        ) {
          console[console.info ? 'info' : 'log'](
            "You are running Vue in development mode.\n" +
            "Make sure to turn on production mode when deploying for production.\n" +
            "See more tips at https://vuejs.org/guide/deployment.html"
          );
        }
      }, 0);
    }
  
    /*  */
  
    var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
    var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
  
    var buildRegex = cached(function (delimiters) {
      var open = delimiters[0].replace(regexEscapeRE, '\\$&');
      var close = delimiters[1].replace(regexEscapeRE, '\\$&');
      return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
    });
  
  
  
    function parseText (
      text,
      delimiters
    ) {
      var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
      if (!tagRE.test(text)) {
        return
      }
      var tokens = [];
      var rawTokens = [];
      var lastIndex = tagRE.lastIndex = 0;
      var match, index, tokenValue;
      while ((match = tagRE.exec(text))) {
        index = match.index;
        // push text token
        if (index > lastIndex) {
          rawTokens.push(tokenValue = text.slice(lastIndex, index));
          tokens.push(JSON.stringify(tokenValue));
        }
        // tag token
        var exp = parseFilters(match[1].trim());
        tokens.push(("_s(" + exp + ")"));
        rawTokens.push({ '@binding': exp });
        lastIndex = index + match[0].length;
      }
      if (lastIndex < text.length) {
        rawTokens.push(tokenValue = text.slice(lastIndex));
        tokens.push(JSON.stringify(tokenValue));
      }
      return {
        expression: tokens.join('+'),
        tokens: rawTokens
      }
    }
  
    /*  */
  
    function transformNode (el, options) {
      var warn = options.warn || baseWarn;
      var staticClass = getAndRemoveAttr(el, 'class');
      if (staticClass) {
        var res = parseText(staticClass, options.delimiters);
        if (res) {
          warn(
            "class=\"" + staticClass + "\": " +
            'Interpolation inside attributes has been removed. ' +
            'Use v-bind or the colon shorthand instead. For example, ' +
            'instead of <div class="{{ val }}">, use <div :class="val">.',
            el.rawAttrsMap['class']
          );
        }
      }
      if (staticClass) {
        el.staticClass = JSON.stringify(staticClass);
      }
      var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
      if (classBinding) {
        el.classBinding = classBinding;
      }
    }
  
    function genData (el) {
      var data = '';
      if (el.staticClass) {
        data += "staticClass:" + (el.staticClass) + ",";
      }
      if (el.classBinding) {
        data += "class:" + (el.classBinding) + ",";
      }
      return data
    }
  
    var klass$1 = {
      staticKeys: ['staticClass'],
      transformNode: transformNode,
      genData: genData
    };
  
    /*  */
  
    function transformNode$1 (el, options) {
      var warn = options.warn || baseWarn;
      var staticStyle = getAndRemoveAttr(el, 'style');
      if (staticStyle) {
        /* istanbul ignore if */
        {
          var res = parseText(staticStyle, options.delimiters);
          if (res) {
            warn(
              "style=\"" + staticStyle + "\": " +
              'Interpolation inside attributes has been removed. ' +
              'Use v-bind or the colon shorthand instead. For example, ' +
              'instead of <div style="{{ val }}">, use <div :style="val">.',
              el.rawAttrsMap['style']
            );
          }
        }
        el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
      }
  
      var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
      if (styleBinding) {
        el.styleBinding = styleBinding;
      }
    }
  
    function genData$1 (el) {
      var data = '';
      if (el.staticStyle) {
        data += "staticStyle:" + (el.staticStyle) + ",";
      }
      if (el.styleBinding) {
        data += "style:(" + (el.styleBinding) + "),";
      }
      return data
    }
  
    var style$1 = {
      staticKeys: ['staticStyle'],
      transformNode: transformNode$1,
      genData: genData$1
    };
  
    /*  */
  
    var decoder;
  
    var he = {
      decode: function decode (html) {
        decoder = decoder || document.createElement('div');
        decoder.innerHTML = html;
        return decoder.textContent
      }
    };
  
    /*  */
  
    var isUnaryTag = makeMap(
      'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
      'link,meta,param,source,track,wbr'
    );
  
    // Elements that you can, intentionally, leave open
    // (and which close themselves)
    var canBeLeftOpenTag = makeMap(
      'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
    );
  
    // HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
    // Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
    var isNonPhrasingTag = makeMap(
      'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
      'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
      'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
      'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
      'title,tr,track'
    );
  
    /**
     * Not type-checking this file because it's mostly vendor code.
     */
  
    // Regular Expressions for parsing tags and attributes
    var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
    var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+?\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
    var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
    var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
    var startTagOpen = new RegExp(("^<" + qnameCapture));
    var startTagClose = /^\s*(\/?)>/;
    var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
    var doctype = /^<!DOCTYPE [^>]+>/i;
    // #7298: escape - to avoid being passed as HTML comment when inlined in page
    var comment = /^<!\--/;
    var conditionalComment = /^<!\[/;
  
    // Special Elements (can contain anything)
    var isPlainTextElement = makeMap('script,style,textarea', true);
    var reCache = {};
  
    var decodingMap = {
      '&lt;': '<',
      '&gt;': '>',
      '&quot;': '"',
      '&amp;': '&',
      '&#10;': '\n',
      '&#9;': '\t',
      '&#39;': "'"
    };
    var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
    var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
  
    // #5992
    var isIgnoreNewlineTag = makeMap('pre,textarea', true);
    var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
  
    function decodeAttr (value, shouldDecodeNewlines) {
      var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
      return value.replace(re, function (match) { return decodingMap[match]; })
    }
  
    function parseHTML (html, options) {
      var stack = [];
      var expectHTML = options.expectHTML;
      var isUnaryTag$$1 = options.isUnaryTag || no;
      var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
      var index = 0;
      var last, lastTag;
      while (html) {
        last = html;
        // Make sure we're not in a plaintext content element like script/style
        if (!lastTag || !isPlainTextElement(lastTag)) {
          var textEnd = html.indexOf('<');
          if (textEnd === 0) {
            // Comment:
            if (comment.test(html)) {
              var commentEnd = html.indexOf('-->');
  
              if (commentEnd >= 0) {
                if (options.shouldKeepComment) {
                  options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
                }
                advance(commentEnd + 3);
                continue
              }
            }
  
            // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
            if (conditionalComment.test(html)) {
              var conditionalEnd = html.indexOf(']>');
  
              if (conditionalEnd >= 0) {
                advance(conditionalEnd + 2);
                continue
              }
            }
  
            // Doctype:
            var doctypeMatch = html.match(doctype);
            if (doctypeMatch) {
              advance(doctypeMatch[0].length);
              continue
            }
  
            // End tag:
            var endTagMatch = html.match(endTag);
            if (endTagMatch) {
              var curIndex = index;
              advance(endTagMatch[0].length);
              parseEndTag(endTagMatch[1], curIndex, index);
              continue
            }
  
            // Start tag:
            var startTagMatch = parseStartTag();
            if (startTagMatch) {
              handleStartTag(startTagMatch);
              if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
                advance(1);
              }
              continue
            }
          }
  
          var text = (void 0), rest = (void 0), next = (void 0);
          if (textEnd >= 0) {
            rest = html.slice(textEnd);
            while (
              !endTag.test(rest) &&
              !startTagOpen.test(rest) &&
              !comment.test(rest) &&
              !conditionalComment.test(rest)
            ) {
              // < in plain text, be forgiving and treat it as text
              next = rest.indexOf('<', 1);
              if (next < 0) { break }
              textEnd += next;
              rest = html.slice(textEnd);
            }
            text = html.substring(0, textEnd);
          }
  
          if (textEnd < 0) {
            text = html;
          }
  
          if (text) {
            advance(text.length);
          }
  
          if (options.chars && text) {
            options.chars(text, index - text.length, index);
          }
        } else {
          var endTagLength = 0;
          var stackedTag = lastTag.toLowerCase();
          var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
          var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
            endTagLength = endTag.length;
            if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
              text = text
                .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
                .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
            }
            if (shouldIgnoreFirstNewline(stackedTag, text)) {
              text = text.slice(1);
            }
            if (options.chars) {
              options.chars(text);
            }
            return ''
          });
          index += html.length - rest$1.length;
          html = rest$1;
          parseEndTag(stackedTag, index - endTagLength, index);
        }
  
        if (html === last) {
          options.chars && options.chars(html);
          if (!stack.length && options.warn) {
            options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
          }
          break
        }
      }
  
      // Clean up any remaining tags
      parseEndTag();
  
      function advance (n) {
        index += n;
        html = html.substring(n);
      }
  
      function parseStartTag () {
        var start = html.match(startTagOpen);
        if (start) {
          var match = {
            tagName: start[1],
            attrs: [],
            start: index
          };
          advance(start[0].length);
          var end, attr;
          while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
            attr.start = index;
            advance(attr[0].length);
            attr.end = index;
            match.attrs.push(attr);
          }
          if (end) {
            match.unarySlash = end[1];
            advance(end[0].length);
            match.end = index;
            return match
          }
        }
      }
  
      function handleStartTag (match) {
        var tagName = match.tagName;
        var unarySlash = match.unarySlash;
  
        if (expectHTML) {
          if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
            parseEndTag(lastTag);
          }
          if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
            parseEndTag(tagName);
          }
        }
  
        var unary = isUnaryTag$$1(tagName) || !!unarySlash;
  
        var l = match.attrs.length;
        var attrs = new Array(l);
        for (var i = 0; i < l; i++) {
          var args = match.attrs[i];
          var value = args[3] || args[4] || args[5] || '';
          var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
            ? options.shouldDecodeNewlinesForHref
            : options.shouldDecodeNewlines;
          attrs[i] = {
            name: args[1],
            value: decodeAttr(value, shouldDecodeNewlines)
          };
          if (options.outputSourceRange) {
            attrs[i].start = args.start + args[0].match(/^\s*/).length;
            attrs[i].end = args.end;
          }
        }
  
        if (!unary) {
          stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
          lastTag = tagName;
        }
  
        if (options.start) {
          options.start(tagName, attrs, unary, match.start, match.end);
        }
      }
  
      function parseEndTag (tagName, start, end) {
        var pos, lowerCasedTagName;
        if (start == null) { start = index; }
        if (end == null) { end = index; }
  
        // Find the closest opened tag of the same type
        if (tagName) {
          lowerCasedTagName = tagName.toLowerCase();
          for (pos = stack.length - 1; pos >= 0; pos--) {
            if (stack[pos].lowerCasedTag === lowerCasedTagName) {
              break
            }
          }
        } else {
          // If no tag name is provided, clean shop
          pos = 0;
        }
  
        if (pos >= 0) {
          // Close all the open elements, up the stack
          for (var i = stack.length - 1; i >= pos; i--) {
            if (i > pos || !tagName &&
              options.warn
            ) {
              options.warn(
                ("tag <" + (stack[i].tag) + "> has no matching end tag."),
                { start: stack[i].start, end: stack[i].end }
              );
            }
            if (options.end) {
              options.end(stack[i].tag, start, end);
            }
          }
  
          // Remove the open elements from the stack
          stack.length = pos;
          lastTag = pos && stack[pos - 1].tag;
        } else if (lowerCasedTagName === 'br') {
          if (options.start) {
            options.start(tagName, [], true, start, end);
          }
        } else if (lowerCasedTagName === 'p') {
          if (options.start) {
            options.start(tagName, [], false, start, end);
          }
          if (options.end) {
            options.end(tagName, start, end);
          }
        }
      }
    }
  
    /*  */
  
    var onRE = /^@|^v-on:/;
    var dirRE = /^v-|^@|^:|^#/;
    var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
    var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
    var stripParensRE = /^\(|\)$/g;
    var dynamicArgRE = /^\[.*\]$/;
  
    var argRE = /:(.*)$/;
    var bindRE = /^:|^\.|^v-bind:/;
    var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
  
    var slotRE = /^v-slot(:|$)|^#/;
  
    var lineBreakRE = /[\r\n]/;
    var whitespaceRE$1 = /[ \f\t\r\n]+/g;
  
    var invalidAttributeRE = /[\s"'<>\/=]/;
  
    var decodeHTMLCached = cached(he.decode);
  
    var emptySlotScopeToken = "_empty_";
  
    // configurable state
    var warn$2;
    var delimiters;
    var transforms;
    var preTransforms;
    var postTransforms;
    var platformIsPreTag;
    var platformMustUseProp;
    var platformGetTagNamespace;
    var maybeComponent;
  
    function createASTElement (
      tag,
      attrs,
      parent
    ) {
      return {
        type: 1,
        tag: tag,
        attrsList: attrs,
        attrsMap: makeAttrsMap(attrs),
        rawAttrsMap: {},
        parent: parent,
        children: []
      }
    }
  
    /**
     * Convert HTML string to AST.
     */
    function parse (
      template,
      options
    ) {
      warn$2 = options.warn || baseWarn;
  
      platformIsPreTag = options.isPreTag || no;
      platformMustUseProp = options.mustUseProp || no;
      platformGetTagNamespace = options.getTagNamespace || no;
      var isReservedTag = options.isReservedTag || no;
      maybeComponent = function (el) { return !!(
        el.component ||
        el.attrsMap[':is'] ||
        el.attrsMap['v-bind:is'] ||
        !(el.attrsMap.is ? isReservedTag(el.attrsMap.is) : isReservedTag(el.tag))
      ); };
      transforms = pluckModuleFunction(options.modules, 'transformNode');
      preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
      postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
  
      delimiters = options.delimiters;
  
      var stack = [];
      var preserveWhitespace = options.preserveWhitespace !== false;
      var whitespaceOption = options.whitespace;
      var root;
      var currentParent;
      var inVPre = false;
      var inPre = false;
      var warned = false;
  
      function warnOnce (msg, range) {
        if (!warned) {
          warned = true;
          warn$2(msg, range);
        }
      }
  
      function closeElement (element) {
        trimEndingWhitespace(element);
        if (!inVPre && !element.processed) {
          element = processElement(element, options);
        }
        // tree management
        if (!stack.length && element !== root) {
          // allow root elements with v-if, v-else-if and v-else
          if (root.if && (element.elseif || element.else)) {
            {
              checkRootConstraints(element);
            }
            addIfCondition(root, {
              exp: element.elseif,
              block: element
            });
          } else {
            warnOnce(
              "Component template should contain exactly one root element. " +
              "If you are using v-if on multiple elements, " +
              "use v-else-if to chain them instead.",
              { start: element.start }
            );
          }
        }
        if (currentParent && !element.forbidden) {
          if (element.elseif || element.else) {
            processIfConditions(element, currentParent);
          } else {
            if (element.slotScope) {
              // scoped slot
              // keep it in the children list so that v-else(-if) conditions can
              // find it as the prev node.
              var name = element.slotTarget || '"default"'
              ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
            }
            currentParent.children.push(element);
            element.parent = currentParent;
          }
        }
  
        // final children cleanup
        // filter out scoped slots
        element.children = element.children.filter(function (c) { return !(c).slotScope; });
        // remove trailing whitespace node again
        trimEndingWhitespace(element);
  
        // check pre state
        if (element.pre) {
          inVPre = false;
        }
        if (platformIsPreTag(element.tag)) {
          inPre = false;
        }
        // apply post-transforms
        for (var i = 0; i < postTransforms.length; i++) {
          postTransforms[i](element, options);
        }
      }
  
      function trimEndingWhitespace (el) {
        // remove trailing whitespace node
        if (!inPre) {
          var lastNode;
          while (
            (lastNode = el.children[el.children.length - 1]) &&
            lastNode.type === 3 &&
            lastNode.text === ' '
          ) {
            el.children.pop();
          }
        }
      }
  
      function checkRootConstraints (el) {
        if (el.tag === 'slot' || el.tag === 'template') {
          warnOnce(
            "Cannot use <" + (el.tag) + "> as component root element because it may " +
            'contain multiple nodes.',
            { start: el.start }
          );
        }
        if (el.attrsMap.hasOwnProperty('v-for')) {
          warnOnce(
            'Cannot use v-for on stateful component root element because ' +
            'it renders multiple elements.',
            el.rawAttrsMap['v-for']
          );
        }
      }
  
      parseHTML(template, {
        warn: warn$2,
        expectHTML: options.expectHTML,
        isUnaryTag: options.isUnaryTag,
        canBeLeftOpenTag: options.canBeLeftOpenTag,
        shouldDecodeNewlines: options.shouldDecodeNewlines,
        shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
        shouldKeepComment: options.comments,
        outputSourceRange: options.outputSourceRange,
        start: function start (tag, attrs, unary, start$1, end) {
          // check namespace.
          // inherit parent ns if there is one
          var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
  
          // handle IE svg bug
          /* istanbul ignore if */
          if (isIE && ns === 'svg') {
            attrs = guardIESVGBug(attrs);
          }
  
          var element = createASTElement(tag, attrs, currentParent);
          if (ns) {
            element.ns = ns;
          }
  
          {
            if (options.outputSourceRange) {
              element.start = start$1;
              element.end = end;
              element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
                cumulated[attr.name] = attr;
                return cumulated
              }, {});
            }
            attrs.forEach(function (attr) {
              if (invalidAttributeRE.test(attr.name)) {
                warn$2(
                  "Invalid dynamic argument expression: attribute names cannot contain " +
                  "spaces, quotes, <, >, / or =.",
                  {
                    start: attr.start + attr.name.indexOf("["),
                    end: attr.start + attr.name.length
                  }
                );
              }
            });
          }
  
          if (isForbiddenTag(element) && !isServerRendering()) {
            element.forbidden = true;
            warn$2(
              'Templates should only be responsible for mapping the state to the ' +
              'UI. Avoid placing tags with side-effects in your templates, such as ' +
              "<" + tag + ">" + ', as they will not be parsed.',
              { start: element.start }
            );
          }
  
          // apply pre-transforms
          for (var i = 0; i < preTransforms.length; i++) {
            element = preTransforms[i](element, options) || element;
          }
  
          if (!inVPre) {
            processPre(element);
            if (element.pre) {
              inVPre = true;
            }
          }
          if (platformIsPreTag(element.tag)) {
            inPre = true;
          }
          if (inVPre) {
            processRawAttrs(element);
          } else if (!element.processed) {
            // structural directives
            processFor(element);
            processIf(element);
            processOnce(element);
          }
  
          if (!root) {
            root = element;
            {
              checkRootConstraints(root);
            }
          }
  
          if (!unary) {
            currentParent = element;
            stack.push(element);
          } else {
            closeElement(element);
          }
        },
  
        end: function end (tag, start, end$1) {
          var element = stack[stack.length - 1];
          // pop stack
          stack.length -= 1;
          currentParent = stack[stack.length - 1];
          if (options.outputSourceRange) {
            element.end = end$1;
          }
          closeElement(element);
        },
  
        chars: function chars (text, start, end) {
          if (!currentParent) {
            {
              if (text === template) {
                warnOnce(
                  'Component template requires a root element, rather than just text.',
                  { start: start }
                );
              } else if ((text = text.trim())) {
                warnOnce(
                  ("text \"" + text + "\" outside root element will be ignored."),
                  { start: start }
                );
              }
            }
            return
          }
          // IE textarea placeholder bug
          /* istanbul ignore if */
          if (isIE &&
            currentParent.tag === 'textarea' &&
            currentParent.attrsMap.placeholder === text
          ) {
            return
          }
          var children = currentParent.children;
          if (inPre || text.trim()) {
            text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
          } else if (!children.length) {
            // remove the whitespace-only node right after an opening tag
            text = '';
          } else if (whitespaceOption) {
            if (whitespaceOption === 'condense') {
              // in condense mode, remove the whitespace node if it contains
              // line break, otherwise condense to a single space
              text = lineBreakRE.test(text) ? '' : ' ';
            } else {
              text = ' ';
            }
          } else {
            text = preserveWhitespace ? ' ' : '';
          }
          if (text) {
            if (!inPre && whitespaceOption === 'condense') {
              // condense consecutive whitespaces into single space
              text = text.replace(whitespaceRE$1, ' ');
            }
            var res;
            var child;
            if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
              child = {
                type: 2,
                expression: res.expression,
                tokens: res.tokens,
                text: text
              };
            } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
              child = {
                type: 3,
                text: text
              };
            }
            if (child) {
              if (options.outputSourceRange) {
                child.start = start;
                child.end = end;
              }
              children.push(child);
            }
          }
        },
        comment: function comment (text, start, end) {
          // adding anything as a sibling to the root node is forbidden
          // comments should still be allowed, but ignored
          if (currentParent) {
            var child = {
              type: 3,
              text: text,
              isComment: true
            };
            if (options.outputSourceRange) {
              child.start = start;
              child.end = end;
            }
            currentParent.children.push(child);
          }
        }
      });
      return root
    }
  
    function processPre (el) {
      if (getAndRemoveAttr(el, 'v-pre') != null) {
        el.pre = true;
      }
    }
  
    function processRawAttrs (el) {
      var list = el.attrsList;
      var len = list.length;
      if (len) {
        var attrs = el.attrs = new Array(len);
        for (var i = 0; i < len; i++) {
          attrs[i] = {
            name: list[i].name,
            value: JSON.stringify(list[i].value)
          };
          if (list[i].start != null) {
            attrs[i].start = list[i].start;
            attrs[i].end = list[i].end;
          }
        }
      } else if (!el.pre) {
        // non root node in pre blocks with no attributes
        el.plain = true;
      }
    }
  
    function processElement (
      element,
      options
    ) {
      processKey(element);
  
      // determine whether this is a plain element after
      // removing structural attributes
      element.plain = (
        !element.key &&
        !element.scopedSlots &&
        !element.attrsList.length
      );
  
      processRef(element);
      processSlotContent(element);
      processSlotOutlet(element);
      processComponent(element);
      for (var i = 0; i < transforms.length; i++) {
        element = transforms[i](element, options) || element;
      }
      processAttrs(element);
      return element
    }
  
    function processKey (el) {
      var exp = getBindingAttr(el, 'key');
      if (exp) {
        {
          if (el.tag === 'template') {
            warn$2(
              "<template> cannot be keyed. Place the key on real elements instead.",
              getRawBindingAttr(el, 'key')
            );
          }
          if (el.for) {
            var iterator = el.iterator2 || el.iterator1;
            var parent = el.parent;
            if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
              warn$2(
                "Do not use v-for index as key on <transition-group> children, " +
                "this is the same as not using keys.",
                getRawBindingAttr(el, 'key'),
                true /* tip */
              );
            }
          }
        }
        el.key = exp;
      }
    }
  
    function processRef (el) {
      var ref = getBindingAttr(el, 'ref');
      if (ref) {
        el.ref = ref;
        el.refInFor = checkInFor(el);
      }
    }
  
    function processFor (el) {
      var exp;
      if ((exp = getAndRemoveAttr(el, 'v-for'))) {
        var res = parseFor(exp);
        if (res) {
          extend(el, res);
        } else {
          warn$2(
            ("Invalid v-for expression: " + exp),
            el.rawAttrsMap['v-for']
          );
        }
      }
    }
  
  
  
    function parseFor (exp) {
      var inMatch = exp.match(forAliasRE);
      if (!inMatch) { return }
      var res = {};
      res.for = inMatch[2].trim();
      var alias = inMatch[1].trim().replace(stripParensRE, '');
      var iteratorMatch = alias.match(forIteratorRE);
      if (iteratorMatch) {
        res.alias = alias.replace(forIteratorRE, '').trim();
        res.iterator1 = iteratorMatch[1].trim();
        if (iteratorMatch[2]) {
          res.iterator2 = iteratorMatch[2].trim();
        }
      } else {
        res.alias = alias;
      }
      return res
    }
  
    function processIf (el) {
      var exp = getAndRemoveAttr(el, 'v-if');
      if (exp) {
        el.if = exp;
        addIfCondition(el, {
          exp: exp,
          block: el
        });
      } else {
        if (getAndRemoveAttr(el, 'v-else') != null) {
          el.else = true;
        }
        var elseif = getAndRemoveAttr(el, 'v-else-if');
        if (elseif) {
          el.elseif = elseif;
        }
      }
    }
  
    function processIfConditions (el, parent) {
      var prev = findPrevElement(parent.children);
      if (prev && prev.if) {
        addIfCondition(prev, {
          exp: el.elseif,
          block: el
        });
      } else {
        warn$2(
          "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
          "used on element <" + (el.tag) + "> without corresponding v-if.",
          el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
        );
      }
    }
  
    function findPrevElement (children) {
      var i = children.length;
      while (i--) {
        if (children[i].type === 1) {
          return children[i]
        } else {
          if (children[i].text !== ' ') {
            warn$2(
              "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
              "will be ignored.",
              children[i]
            );
          }
          children.pop();
        }
      }
    }
  
    function addIfCondition (el, condition) {
      if (!el.ifConditions) {
        el.ifConditions = [];
      }
      el.ifConditions.push(condition);
    }
  
    function processOnce (el) {
      var once$$1 = getAndRemoveAttr(el, 'v-once');
      if (once$$1 != null) {
        el.once = true;
      }
    }
  
    // handle content being passed to a component as slot,
    // e.g. <template slot="xxx">, <div slot-scope="xxx">
    function processSlotContent (el) {
      var slotScope;
      if (el.tag === 'template') {
        slotScope = getAndRemoveAttr(el, 'scope');
        /* istanbul ignore if */
        if (slotScope) {
          warn$2(
            "the \"scope\" attribute for scoped slots have been deprecated and " +
            "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
            "can also be used on plain elements in addition to <template> to " +
            "denote scoped slots.",
            el.rawAttrsMap['scope'],
            true
          );
        }
        el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
      } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
        /* istanbul ignore if */
        if (el.attrsMap['v-for']) {
          warn$2(
            "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
            "(v-for takes higher priority). Use a wrapper <template> for the " +
            "scoped slot to make it clearer.",
            el.rawAttrsMap['slot-scope'],
            true
          );
        }
        el.slotScope = slotScope;
      }
  
      // slot="xxx"
      var slotTarget = getBindingAttr(el, 'slot');
      if (slotTarget) {
        el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
        el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
        // preserve slot as an attribute for native shadow DOM compat
        // only for non-scoped slots.
        if (el.tag !== 'template' && !el.slotScope) {
          addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
        }
      }
  
      // 2.6 v-slot syntax
      {
        if (el.tag === 'template') {
          // v-slot on <template>
          var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
          if (slotBinding) {
            {
              if (el.slotTarget || el.slotScope) {
                warn$2(
                  "Unexpected mixed usage of different slot syntaxes.",
                  el
                );
              }
              if (el.parent && !maybeComponent(el.parent)) {
                warn$2(
                  "<template v-slot> can only appear at the root level inside " +
                  "the receiving component",
                  el
                );
              }
            }
            var ref = getSlotName(slotBinding);
            var name = ref.name;
            var dynamic = ref.dynamic;
            el.slotTarget = name;
            el.slotTargetDynamic = dynamic;
            el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
          }
        } else {
          // v-slot on component, denotes default slot
          var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
          if (slotBinding$1) {
            {
              if (!maybeComponent(el)) {
                warn$2(
                  "v-slot can only be used on components or <template>.",
                  slotBinding$1
                );
              }
              if (el.slotScope || el.slotTarget) {
                warn$2(
                  "Unexpected mixed usage of different slot syntaxes.",
                  el
                );
              }
              if (el.scopedSlots) {
                warn$2(
                  "To avoid scope ambiguity, the default slot should also use " +
                  "<template> syntax when there are other named slots.",
                  slotBinding$1
                );
              }
            }
            // add the component's children to its default slot
            var slots = el.scopedSlots || (el.scopedSlots = {});
            var ref$1 = getSlotName(slotBinding$1);
            var name$1 = ref$1.name;
            var dynamic$1 = ref$1.dynamic;
            var slotContainer = slots[name$1] = createASTElement('template', [], el);
            slotContainer.slotTarget = name$1;
            slotContainer.slotTargetDynamic = dynamic$1;
            slotContainer.children = el.children.filter(function (c) {
              if (!c.slotScope) {
                c.parent = slotContainer;
                return true
              }
            });
            slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
            // remove children as they are returned from scopedSlots now
            el.children = [];
            // mark el non-plain so data gets generated
            el.plain = false;
          }
        }
      }
    }
  
    function getSlotName (binding) {
      var name = binding.name.replace(slotRE, '');
      if (!name) {
        if (binding.name[0] !== '#') {
          name = 'default';
        } else {
          warn$2(
            "v-slot shorthand syntax requires a slot name.",
            binding
          );
        }
      }
      return dynamicArgRE.test(name)
        // dynamic [name]
        ? { name: name.slice(1, -1), dynamic: true }
        // static name
        : { name: ("\"" + name + "\""), dynamic: false }
    }
  
    // handle <slot/> outlets
    function processSlotOutlet (el) {
      if (el.tag === 'slot') {
        el.slotName = getBindingAttr(el, 'name');
        if (el.key) {
          warn$2(
            "`key` does not work on <slot> because slots are abstract outlets " +
            "and can possibly expand into multiple elements. " +
            "Use the key on a wrapping element instead.",
            getRawBindingAttr(el, 'key')
          );
        }
      }
    }
  
    function processComponent (el) {
      var binding;
      if ((binding = getBindingAttr(el, 'is'))) {
        el.component = binding;
      }
      if (getAndRemoveAttr(el, 'inline-template') != null) {
        el.inlineTemplate = true;
      }
    }
  
    function processAttrs (el) {
      var list = el.attrsList;
      var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
      for (i = 0, l = list.length; i < l; i++) {
        name = rawName = list[i].name;
        value = list[i].value;
        if (dirRE.test(name)) {
          // mark element as dynamic
          el.hasBindings = true;
          // modifiers
          modifiers = parseModifiers(name.replace(dirRE, ''));
          // support .foo shorthand syntax for the .prop modifier
          if (modifiers) {
            name = name.replace(modifierRE, '');
          }
          if (bindRE.test(name)) { // v-bind
            name = name.replace(bindRE, '');
            value = parseFilters(value);
            isDynamic = dynamicArgRE.test(name);
            if (isDynamic) {
              name = name.slice(1, -1);
            }
            if (
              value.trim().length === 0
            ) {
              warn$2(
                ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
              );
            }
            if (modifiers) {
              if (modifiers.prop && !isDynamic) {
                name = camelize(name);
                if (name === 'innerHtml') { name = 'innerHTML'; }
              }
              if (modifiers.camel && !isDynamic) {
                name = camelize(name);
              }
              if (modifiers.sync) {
                syncGen = genAssignmentCode(value, "$event");
                if (!isDynamic) {
                  addHandler(
                    el,
                    ("update:" + (camelize(name))),
                    syncGen,
                    null,
                    false,
                    warn$2,
                    list[i]
                  );
                  if (hyphenate(name) !== camelize(name)) {
                    addHandler(
                      el,
                      ("update:" + (hyphenate(name))),
                      syncGen,
                      null,
                      false,
                      warn$2,
                      list[i]
                    );
                  }
                } else {
                  // handler w/ dynamic event name
                  addHandler(
                    el,
                    ("\"update:\"+(" + name + ")"),
                    syncGen,
                    null,
                    false,
                    warn$2,
                    list[i],
                    true // dynamic
                  );
                }
              }
            }
            if ((modifiers && modifiers.prop) || (
              !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
            )) {
              addProp(el, name, value, list[i], isDynamic);
            } else {
              addAttr(el, name, value, list[i], isDynamic);
            }
          } else if (onRE.test(name)) { // v-on
            name = name.replace(onRE, '');
            isDynamic = dynamicArgRE.test(name);
            if (isDynamic) {
              name = name.slice(1, -1);
            }
            addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
          } else { // normal directives
            name = name.replace(dirRE, '');
            // parse arg
            var argMatch = name.match(argRE);
            var arg = argMatch && argMatch[1];
            isDynamic = false;
            if (arg) {
              name = name.slice(0, -(arg.length + 1));
              if (dynamicArgRE.test(arg)) {
                arg = arg.slice(1, -1);
                isDynamic = true;
              }
            }
            addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
            if (name === 'model') {
              checkForAliasModel(el, value);
            }
          }
        } else {
          // literal attribute
          {
            var res = parseText(value, delimiters);
            if (res) {
              warn$2(
                name + "=\"" + value + "\": " +
                'Interpolation inside attributes has been removed. ' +
                'Use v-bind or the colon shorthand instead. For example, ' +
                'instead of <div id="{{ val }}">, use <div :id="val">.',
                list[i]
              );
            }
          }
          addAttr(el, name, JSON.stringify(value), list[i]);
          // #6887 firefox doesn't update muted state if set via attribute
          // even immediately after element creation
          if (!el.component &&
              name === 'muted' &&
              platformMustUseProp(el.tag, el.attrsMap.type, name)) {
            addProp(el, name, 'true', list[i]);
          }
        }
      }
    }
  
    function checkInFor (el) {
      var parent = el;
      while (parent) {
        if (parent.for !== undefined) {
          return true
        }
        parent = parent.parent;
      }
      return false
    }
  
    function parseModifiers (name) {
      var match = name.match(modifierRE);
      if (match) {
        var ret = {};
        match.forEach(function (m) { ret[m.slice(1)] = true; });
        return ret
      }
    }
  
    function makeAttrsMap (attrs) {
      var map = {};
      for (var i = 0, l = attrs.length; i < l; i++) {
        if (
          map[attrs[i].name] && !isIE && !isEdge
        ) {
          warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
        }
        map[attrs[i].name] = attrs[i].value;
      }
      return map
    }
  
    // for script (e.g. type="x/template") or style, do not decode content
    function isTextTag (el) {
      return el.tag === 'script' || el.tag === 'style'
    }
  
    function isForbiddenTag (el) {
      return (
        el.tag === 'style' ||
        (el.tag === 'script' && (
          !el.attrsMap.type ||
          el.attrsMap.type === 'text/javascript'
        ))
      )
    }
  
    var ieNSBug = /^xmlns:NS\d+/;
    var ieNSPrefix = /^NS\d+:/;
  
    /* istanbul ignore next */
    function guardIESVGBug (attrs) {
      var res = [];
      for (var i = 0; i < attrs.length; i++) {
        var attr = attrs[i];
        if (!ieNSBug.test(attr.name)) {
          attr.name = attr.name.replace(ieNSPrefix, '');
          res.push(attr);
        }
      }
      return res
    }
  
    function checkForAliasModel (el, value) {
      var _el = el;
      while (_el) {
        if (_el.for && _el.alias === value) {
          warn$2(
            "<" + (el.tag) + " v-model=\"" + value + "\">: " +
            "You are binding v-model directly to a v-for iteration alias. " +
            "This will not be able to modify the v-for source array because " +
            "writing to the alias is like modifying a function local variable. " +
            "Consider using an array of objects and use v-model on an object property instead.",
            el.rawAttrsMap['v-model']
          );
        }
        _el = _el.parent;
      }
    }
  
    /*  */
  
    function preTransformNode (el, options) {
      if (el.tag === 'input') {
        var map = el.attrsMap;
        if (!map['v-model']) {
          return
        }
  
        var typeBinding;
        if (map[':type'] || map['v-bind:type']) {
          typeBinding = getBindingAttr(el, 'type');
        }
        if (!map.type && !typeBinding && map['v-bind']) {
          typeBinding = "(" + (map['v-bind']) + ").type";
        }
  
        if (typeBinding) {
          var ifCondition = getAndRemoveAttr(el, 'v-if', true);
          var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
          var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
          var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
          // 1. checkbox
          var branch0 = cloneASTElement(el);
          // process for on the main node
          processFor(branch0);
          addRawAttr(branch0, 'type', 'checkbox');
          processElement(branch0, options);
          branch0.processed = true; // prevent it from double-processed
          branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
          addIfCondition(branch0, {
            exp: branch0.if,
            block: branch0
          });
          // 2. add radio else-if condition
          var branch1 = cloneASTElement(el);
          getAndRemoveAttr(branch1, 'v-for', true);
          addRawAttr(branch1, 'type', 'radio');
          processElement(branch1, options);
          addIfCondition(branch0, {
            exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
            block: branch1
          });
          // 3. other
          var branch2 = cloneASTElement(el);
          getAndRemoveAttr(branch2, 'v-for', true);
          addRawAttr(branch2, ':type', typeBinding);
          processElement(branch2, options);
          addIfCondition(branch0, {
            exp: ifCondition,
            block: branch2
          });
  
          if (hasElse) {
            branch0.else = true;
          } else if (elseIfCondition) {
            branch0.elseif = elseIfCondition;
          }
  
          return branch0
        }
      }
    }
  
    function cloneASTElement (el) {
      return createASTElement(el.tag, el.attrsList.slice(), el.parent)
    }
  
    var model$1 = {
      preTransformNode: preTransformNode
    };
  
    var modules$1 = [
      klass$1,
      style$1,
      model$1
    ];
  
    /*  */
  
    function text (el, dir) {
      if (dir.value) {
        addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
      }
    }
  
    /*  */
  
    function html (el, dir) {
      if (dir.value) {
        addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
      }
    }
  
    var directives$1 = {
      model: model,
      text: text,
      html: html
    };
  
    /*  */
  
    var baseOptions = {
      expectHTML: true,
      modules: modules$1,
      directives: directives$1,
      isPreTag: isPreTag,
      isUnaryTag: isUnaryTag,
      mustUseProp: mustUseProp,
      canBeLeftOpenTag: canBeLeftOpenTag,
      isReservedTag: isReservedTag,
      getTagNamespace: getTagNamespace,
      staticKeys: genStaticKeys(modules$1)
    };
  
    /*  */
  
    var isStaticKey;
    var isPlatformReservedTag;
  
    var genStaticKeysCached = cached(genStaticKeys$1);
  
    /**
     * Goal of the optimizer: walk the generated template AST tree
     * and detect sub-trees that are purely static, i.e. parts of
     * the DOM that never needs to change.
     *
     * Once we detect these sub-trees, we can:
     *
     * 1. Hoist them into constants, so that we no longer need to
     *    create fresh nodes for them on each re-render;
     * 2. Completely skip them in the patching process.
     */
    function optimize (root, options) {
      if (!root) { return }
      isStaticKey = genStaticKeysCached(options.staticKeys || '');
      isPlatformReservedTag = options.isReservedTag || no;
      // first pass: mark all non-static nodes.
      markStatic$1(root);
      // second pass: mark static roots.
      markStaticRoots(root, false);
    }
  
    function genStaticKeys$1 (keys) {
      return makeMap(
        'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
        (keys ? ',' + keys : '')
      )
    }
  
    function markStatic$1 (node) {
      node.static = isStatic(node);
      if (node.type === 1) {
        // do not make component slot content static. this avoids
        // 1. components not able to mutate slot nodes
        // 2. static slot content fails for hot-reloading
        if (
          !isPlatformReservedTag(node.tag) &&
          node.tag !== 'slot' &&
          node.attrsMap['inline-template'] == null
        ) {
          return
        }
        for (var i = 0, l = node.children.length; i < l; i++) {
          var child = node.children[i];
          markStatic$1(child);
          if (!child.static) {
            node.static = false;
          }
        }
        if (node.ifConditions) {
          for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
            var block = node.ifConditions[i$1].block;
            markStatic$1(block);
            if (!block.static) {
              node.static = false;
            }
          }
        }
      }
    }
  
    function markStaticRoots (node, isInFor) {
      if (node.type === 1) {
        if (node.static || node.once) {
          node.staticInFor = isInFor;
        }
        // For a node to qualify as a static root, it should have children that
        // are not just static text. Otherwise the cost of hoisting out will
        // outweigh the benefits and it's better off to just always render it fresh.
        if (node.static && node.children.length && !(
          node.children.length === 1 &&
          node.children[0].type === 3
        )) {
          node.staticRoot = true;
          return
        } else {
          node.staticRoot = false;
        }
        if (node.children) {
          for (var i = 0, l = node.children.length; i < l; i++) {
            markStaticRoots(node.children[i], isInFor || !!node.for);
          }
        }
        if (node.ifConditions) {
          for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
            markStaticRoots(node.ifConditions[i$1].block, isInFor);
          }
        }
      }
    }
  
    function isStatic (node) {
      if (node.type === 2) { // expression
        return false
      }
      if (node.type === 3) { // text
        return true
      }
      return !!(node.pre || (
        !node.hasBindings && // no dynamic bindings
        !node.if && !node.for && // not v-if or v-for or v-else
        !isBuiltInTag(node.tag) && // not a built-in
        isPlatformReservedTag(node.tag) && // not a component
        !isDirectChildOfTemplateFor(node) &&
        Object.keys(node).every(isStaticKey)
      ))
    }
  
    function isDirectChildOfTemplateFor (node) {
      while (node.parent) {
        node = node.parent;
        if (node.tag !== 'template') {
          return false
        }
        if (node.for) {
          return true
        }
      }
      return false
    }
  
    /*  */
  
    var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
    var fnInvokeRE = /\([^)]*?\);*$/;
    var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
  
    // KeyboardEvent.keyCode aliases
    var keyCodes = {
      esc: 27,
      tab: 9,
      enter: 13,
      space: 32,
      up: 38,
      left: 37,
      right: 39,
      down: 40,
      'delete': [8, 46]
    };
  
    // KeyboardEvent.key aliases
    var keyNames = {
      // #7880: IE11 and Edge use `Esc` for Escape key name.
      esc: ['Esc', 'Escape'],
      tab: 'Tab',
      enter: 'Enter',
      // #9112: IE11 uses `Spacebar` for Space key name.
      space: [' ', 'Spacebar'],
      // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
      up: ['Up', 'ArrowUp'],
      left: ['Left', 'ArrowLeft'],
      right: ['Right', 'ArrowRight'],
      down: ['Down', 'ArrowDown'],
      // #9112: IE11 uses `Del` for Delete key name.
      'delete': ['Backspace', 'Delete', 'Del']
    };
  
    // #4868: modifiers that prevent the execution of the listener
    // need to explicitly return null so that we can determine whether to remove
    // the listener for .once
    var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
  
    var modifierCode = {
      stop: '$event.stopPropagation();',
      prevent: '$event.preventDefault();',
      self: genGuard("$event.target !== $event.currentTarget"),
      ctrl: genGuard("!$event.ctrlKey"),
      shift: genGuard("!$event.shiftKey"),
      alt: genGuard("!$event.altKey"),
      meta: genGuard("!$event.metaKey"),
      left: genGuard("'button' in $event && $event.button !== 0"),
      middle: genGuard("'button' in $event && $event.button !== 1"),
      right: genGuard("'button' in $event && $event.button !== 2")
    };
  
    function genHandlers (
      events,
      isNative
    ) {
      var prefix = isNative ? 'nativeOn:' : 'on:';
      var staticHandlers = "";
      var dynamicHandlers = "";
      for (var name in events) {
        var handlerCode = genHandler(events[name]);
        if (events[name] && events[name].dynamic) {
          dynamicHandlers += name + "," + handlerCode + ",";
        } else {
          staticHandlers += "\"" + name + "\":" + handlerCode + ",";
        }
      }
      staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
      if (dynamicHandlers) {
        return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
      } else {
        return prefix + staticHandlers
      }
    }
  
    function genHandler (handler) {
      if (!handler) {
        return 'function(){}'
      }
  
      if (Array.isArray(handler)) {
        return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
      }
  
      var isMethodPath = simplePathRE.test(handler.value);
      var isFunctionExpression = fnExpRE.test(handler.value);
      var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
  
      if (!handler.modifiers) {
        if (isMethodPath || isFunctionExpression) {
          return handler.value
        }
        return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
      } else {
        var code = '';
        var genModifierCode = '';
        var keys = [];
        for (var key in handler.modifiers) {
          if (modifierCode[key]) {
            genModifierCode += modifierCode[key];
            // left/right
            if (keyCodes[key]) {
              keys.push(key);
            }
          } else if (key === 'exact') {
            var modifiers = (handler.modifiers);
            genModifierCode += genGuard(
              ['ctrl', 'shift', 'alt', 'meta']
                .filter(function (keyModifier) { return !modifiers[keyModifier]; })
                .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
                .join('||')
            );
          } else {
            keys.push(key);
          }
        }
        if (keys.length) {
          code += genKeyFilter(keys);
        }
        // Make sure modifiers like prevent and stop get executed after key filtering
        if (genModifierCode) {
          code += genModifierCode;
        }
        var handlerCode = isMethodPath
          ? ("return " + (handler.value) + ".apply(null, arguments)")
          : isFunctionExpression
            ? ("return (" + (handler.value) + ").apply(null, arguments)")
            : isFunctionInvocation
              ? ("return " + (handler.value))
              : handler.value;
        return ("function($event){" + code + handlerCode + "}")
      }
    }
  
    function genKeyFilter (keys) {
      return (
        // make sure the key filters only apply to KeyboardEvents
        // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
        // key events that do not have keyCode property...
        "if(!$event.type.indexOf('key')&&" +
        (keys.map(genFilterCode).join('&&')) + ")return null;"
      )
    }
  
    function genFilterCode (key) {
      var keyVal = parseInt(key, 10);
      if (keyVal) {
        return ("$event.keyCode!==" + keyVal)
      }
      var keyCode = keyCodes[key];
      var keyName = keyNames[key];
      return (
        "_k($event.keyCode," +
        (JSON.stringify(key)) + "," +
        (JSON.stringify(keyCode)) + "," +
        "$event.key," +
        "" + (JSON.stringify(keyName)) +
        ")"
      )
    }
  
    /*  */
  
    function on (el, dir) {
      if (dir.modifiers) {
        warn("v-on without argument does not support modifiers.");
      }
      el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
    }
  
    /*  */
  
    function bind$1 (el, dir) {
      el.wrapData = function (code) {
        return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
      };
    }
  
    /*  */
  
    var baseDirectives = {
      on: on,
      bind: bind$1,
      cloak: noop
    };
  
    /*  */
  
  
  
  
  
    var CodegenState = function CodegenState (options) {
      this.options = options;
      this.warn = options.warn || baseWarn;
      this.transforms = pluckModuleFunction(options.modules, 'transformCode');
      this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
      this.directives = extend(extend({}, baseDirectives), options.directives);
      var isReservedTag = options.isReservedTag || no;
      this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
      this.onceId = 0;
      this.staticRenderFns = [];
      this.pre = false;
    };
  
  
  
    function generate (
      ast,
      options
    ) {
      var state = new CodegenState(options);
      // fix #11483, Root level <script> tags should not be rendered.
      var code = ast ? (ast.tag === 'script' ? 'null' : genElement(ast, state)) : '_c("div")';
      return {
        render: ("with(this){return " + code + "}"),
        staticRenderFns: state.staticRenderFns
      }
    }
  
    function genElement (el, state) {
      if (el.parent) {
        el.pre = el.pre || el.parent.pre;
      }
  
      if (el.staticRoot && !el.staticProcessed) {
        return genStatic(el, state)
      } else if (el.once && !el.onceProcessed) {
        return genOnce(el, state)
      } else if (el.for && !el.forProcessed) {
        return genFor(el, state)
      } else if (el.if && !el.ifProcessed) {
        return genIf(el, state)
      } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
        return genChildren(el, state) || 'void 0'
      } else if (el.tag === 'slot') {
        return genSlot(el, state)
      } else {
        // component or element
        var code;
        if (el.component) {
          code = genComponent(el.component, el, state);
        } else {
          var data;
          if (!el.plain || (el.pre && state.maybeComponent(el))) {
            data = genData$2(el, state);
          }
  
          var children = el.inlineTemplate ? null : genChildren(el, state, true);
          code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
        }
        // module transforms
        for (var i = 0; i < state.transforms.length; i++) {
          code = state.transforms[i](el, code);
        }
        return code
      }
    }
  
    // hoist static sub-trees out
    function genStatic (el, state) {
      el.staticProcessed = true;
      // Some elements (templates) need to behave differently inside of a v-pre
      // node.  All pre nodes are static roots, so we can use this as a location to
      // wrap a state change and reset it upon exiting the pre node.
      var originalPreState = state.pre;
      if (el.pre) {
        state.pre = el.pre;
      }
      state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
      state.pre = originalPreState;
      return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
    }
  
    // v-once
    function genOnce (el, state) {
      el.onceProcessed = true;
      if (el.if && !el.ifProcessed) {
        return genIf(el, state)
      } else if (el.staticInFor) {
        var key = '';
        var parent = el.parent;
        while (parent) {
          if (parent.for) {
            key = parent.key;
            break
          }
          parent = parent.parent;
        }
        if (!key) {
          state.warn(
            "v-once can only be used inside v-for that is keyed. ",
            el.rawAttrsMap['v-once']
          );
          return genElement(el, state)
        }
        return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
      } else {
        return genStatic(el, state)
      }
    }
  
    function genIf (
      el,
      state,
      altGen,
      altEmpty
    ) {
      el.ifProcessed = true; // avoid recursion
      return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
    }
  
    function genIfConditions (
      conditions,
      state,
      altGen,
      altEmpty
    ) {
      if (!conditions.length) {
        return altEmpty || '_e()'
      }
  
      var condition = conditions.shift();
      if (condition.exp) {
        return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
      } else {
        return ("" + (genTernaryExp(condition.block)))
      }
  
      // v-if with v-once should generate code like (a)?_m(0):_m(1)
      function genTernaryExp (el) {
        return altGen
          ? altGen(el, state)
          : el.once
            ? genOnce(el, state)
            : genElement(el, state)
      }
    }
  
    function genFor (
      el,
      state,
      altGen,
      altHelper
    ) {
      var exp = el.for;
      var alias = el.alias;
      var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
      var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
  
      if (state.maybeComponent(el) &&
        el.tag !== 'slot' &&
        el.tag !== 'template' &&
        !el.key
      ) {
        state.warn(
          "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
          "v-for should have explicit keys. " +
          "See https://vuejs.org/guide/list.html#key for more info.",
          el.rawAttrsMap['v-for'],
          true /* tip */
        );
      }
  
      el.forProcessed = true; // avoid recursion
      return (altHelper || '_l') + "((" + exp + ")," +
        "function(" + alias + iterator1 + iterator2 + "){" +
          "return " + ((altGen || genElement)(el, state)) +
        '})'
    }
  
    function genData$2 (el, state) {
      var data = '{';
  
      // directives first.
      // directives may mutate the el's other properties before they are generated.
      var dirs = genDirectives(el, state);
      if (dirs) { data += dirs + ','; }
  
      // key
      if (el.key) {
        data += "key:" + (el.key) + ",";
      }
      // ref
      if (el.ref) {
        data += "ref:" + (el.ref) + ",";
      }
      if (el.refInFor) {
        data += "refInFor:true,";
      }
      // pre
      if (el.pre) {
        data += "pre:true,";
      }
      // record original tag name for components using "is" attribute
      if (el.component) {
        data += "tag:\"" + (el.tag) + "\",";
      }
      // module data generation functions
      for (var i = 0; i < state.dataGenFns.length; i++) {
        data += state.dataGenFns[i](el);
      }
      // attributes
      if (el.attrs) {
        data += "attrs:" + (genProps(el.attrs)) + ",";
      }
      // DOM props
      if (el.props) {
        data += "domProps:" + (genProps(el.props)) + ",";
      }
      // event handlers
      if (el.events) {
        data += (genHandlers(el.events, false)) + ",";
      }
      if (el.nativeEvents) {
        data += (genHandlers(el.nativeEvents, true)) + ",";
      }
      // slot target
      // only for non-scoped slots
      if (el.slotTarget && !el.slotScope) {
        data += "slot:" + (el.slotTarget) + ",";
      }
      // scoped slots
      if (el.scopedSlots) {
        data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
      }
      // component v-model
      if (el.model) {
        data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
      }
      // inline-template
      if (el.inlineTemplate) {
        var inlineTemplate = genInlineTemplate(el, state);
        if (inlineTemplate) {
          data += inlineTemplate + ",";
        }
      }
      data = data.replace(/,$/, '') + '}';
      // v-bind dynamic argument wrap
      // v-bind with dynamic arguments must be applied using the same v-bind object
      // merge helper so that class/style/mustUseProp attrs are handled correctly.
      if (el.dynamicAttrs) {
        data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
      }
      // v-bind data wrap
      if (el.wrapData) {
        data = el.wrapData(data);
      }
      // v-on data wrap
      if (el.wrapListeners) {
        data = el.wrapListeners(data);
      }
      return data
    }
  
    function genDirectives (el, state) {
      var dirs = el.directives;
      if (!dirs) { return }
      var res = 'directives:[';
      var hasRuntime = false;
      var i, l, dir, needRuntime;
      for (i = 0, l = dirs.length; i < l; i++) {
        dir = dirs[i];
        needRuntime = true;
        var gen = state.directives[dir.name];
        if (gen) {
          // compile-time directive that manipulates AST.
          // returns true if it also needs a runtime counterpart.
          needRuntime = !!gen(el, dir, state.warn);
        }
        if (needRuntime) {
          hasRuntime = true;
          res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
        }
      }
      if (hasRuntime) {
        return res.slice(0, -1) + ']'
      }
    }
  
    function genInlineTemplate (el, state) {
      var ast = el.children[0];
      if (el.children.length !== 1 || ast.type !== 1) {
        state.warn(
          'Inline-template components must have exactly one child element.',
          { start: el.start }
        );
      }
      if (ast && ast.type === 1) {
        var inlineRenderFns = generate(ast, state.options);
        return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
      }
    }
  
    function genScopedSlots (
      el,
      slots,
      state
    ) {
      // by default scoped slots are considered "stable", this allows child
      // components with only scoped slots to skip forced updates from parent.
      // but in some cases we have to bail-out of this optimization
      // for example if the slot contains dynamic names, has v-if or v-for on them...
      var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
        var slot = slots[key];
        return (
          slot.slotTargetDynamic ||
          slot.if ||
          slot.for ||
          containsSlotChild(slot) // is passing down slot from parent which may be dynamic
        )
      });
  
      // #9534: if a component with scoped slots is inside a conditional branch,
      // it's possible for the same component to be reused but with different
      // compiled slot content. To avoid that, we generate a unique key based on
      // the generated code of all the slot contents.
      var needsKey = !!el.if;
  
      // OR when it is inside another scoped slot or v-for (the reactivity may be
      // disconnected due to the intermediate scope variable)
      // #9438, #9506
      // TODO: this can be further optimized by properly analyzing in-scope bindings
      // and skip force updating ones that do not actually use scope variables.
      if (!needsForceUpdate) {
        var parent = el.parent;
        while (parent) {
          if (
            (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
            parent.for
          ) {
            needsForceUpdate = true;
            break
          }
          if (parent.if) {
            needsKey = true;
          }
          parent = parent.parent;
        }
      }
  
      var generatedSlots = Object.keys(slots)
        .map(function (key) { return genScopedSlot(slots[key], state); })
        .join(',');
  
      return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
    }
  
    function hash(str) {
      var hash = 5381;
      var i = str.length;
      while(i) {
        hash = (hash * 33) ^ str.charCodeAt(--i);
      }
      return hash >>> 0
    }
  
    function containsSlotChild (el) {
      if (el.type === 1) {
        if (el.tag === 'slot') {
          return true
        }
        return el.children.some(containsSlotChild)
      }
      return false
    }
  
    function genScopedSlot (
      el,
      state
    ) {
      var isLegacySyntax = el.attrsMap['slot-scope'];
      if (el.if && !el.ifProcessed && !isLegacySyntax) {
        return genIf(el, state, genScopedSlot, "null")
      }
      if (el.for && !el.forProcessed) {
        return genFor(el, state, genScopedSlot)
      }
      var slotScope = el.slotScope === emptySlotScopeToken
        ? ""
        : String(el.slotScope);
      var fn = "function(" + slotScope + "){" +
        "return " + (el.tag === 'template'
          ? el.if && isLegacySyntax
            ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
            : genChildren(el, state) || 'undefined'
          : genElement(el, state)) + "}";
      // reverse proxy v-slot without scope on this.$slots
      var reverseProxy = slotScope ? "" : ",proxy:true";
      return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
    }
  
    function genChildren (
      el,
      state,
      checkSkip,
      altGenElement,
      altGenNode
    ) {
      var children = el.children;
      if (children.length) {
        var el$1 = children[0];
        // optimize single v-for
        if (children.length === 1 &&
          el$1.for &&
          el$1.tag !== 'template' &&
          el$1.tag !== 'slot'
        ) {
          var normalizationType = checkSkip
            ? state.maybeComponent(el$1) ? ",1" : ",0"
            : "";
          return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
        }
        var normalizationType$1 = checkSkip
          ? getNormalizationType(children, state.maybeComponent)
          : 0;
        var gen = altGenNode || genNode;
        return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
      }
    }
  
    // determine the normalization needed for the children array.
    // 0: no normalization needed
    // 1: simple normalization needed (possible 1-level deep nested array)
    // 2: full normalization needed
    function getNormalizationType (
      children,
      maybeComponent
    ) {
      var res = 0;
      for (var i = 0; i < children.length; i++) {
        var el = children[i];
        if (el.type !== 1) {
          continue
        }
        if (needsNormalization(el) ||
            (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
          res = 2;
          break
        }
        if (maybeComponent(el) ||
            (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
          res = 1;
        }
      }
      return res
    }
  
    function needsNormalization (el) {
      return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
    }
  
    function genNode (node, state) {
      if (node.type === 1) {
        return genElement(node, state)
      } else if (node.type === 3 && node.isComment) {
        return genComment(node)
      } else {
        return genText(node)
      }
    }
  
    function genText (text) {
      return ("_v(" + (text.type === 2
        ? text.expression // no need for () because already wrapped in _s()
        : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
    }
  
    function genComment (comment) {
      return ("_e(" + (JSON.stringify(comment.text)) + ")")
    }
  
    function genSlot (el, state) {
      var slotName = el.slotName || '"default"';
      var children = genChildren(el, state);
      var res = "_t(" + slotName + (children ? (",function(){return " + children + "}") : '');
      var attrs = el.attrs || el.dynamicAttrs
        ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
            // slot props are camelized
            name: camelize(attr.name),
            value: attr.value,
            dynamic: attr.dynamic
          }); }))
        : null;
      var bind$$1 = el.attrsMap['v-bind'];
      if ((attrs || bind$$1) && !children) {
        res += ",null";
      }
      if (attrs) {
        res += "," + attrs;
      }
      if (bind$$1) {
        res += (attrs ? '' : ',null') + "," + bind$$1;
      }
      return res + ')'
    }
  
    // componentName is el.component, take it as argument to shun flow's pessimistic refinement
    function genComponent (
      componentName,
      el,
      state
    ) {
      var children = el.inlineTemplate ? null : genChildren(el, state, true);
      return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
    }
  
    function genProps (props) {
      var staticProps = "";
      var dynamicProps = "";
      for (var i = 0; i < props.length; i++) {
        var prop = props[i];
        var value = transformSpecialNewlines(prop.value);
        if (prop.dynamic) {
          dynamicProps += (prop.name) + "," + value + ",";
        } else {
          staticProps += "\"" + (prop.name) + "\":" + value + ",";
        }
      }
      staticProps = "{" + (staticProps.slice(0, -1)) + "}";
      if (dynamicProps) {
        return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
      } else {
        return staticProps
      }
    }
  
    // #3895, #4268
    function transformSpecialNewlines (text) {
      return text
        .replace(/\u2028/g, '\\u2028')
        .replace(/\u2029/g, '\\u2029')
    }
  
    /*  */
  
  
  
    // these keywords should not appear inside expressions, but operators like
    // typeof, instanceof and in are allowed
    var prohibitedKeywordRE = new RegExp('\\b' + (
      'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
      'super,throw,while,yield,delete,export,import,return,switch,default,' +
      'extends,finally,continue,debugger,function,arguments'
    ).split(',').join('\\b|\\b') + '\\b');
  
    // these unary operators should not be used as property/method names
    var unaryOperatorsRE = new RegExp('\\b' + (
      'delete,typeof,void'
    ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
  
    // strip strings in expressions
    var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
  
    // detect problematic expressions in a template
    function detectErrors (ast, warn) {
      if (ast) {
        checkNode(ast, warn);
      }
    }
  
    function checkNode (node, warn) {
      if (node.type === 1) {
        for (var name in node.attrsMap) {
          if (dirRE.test(name)) {
            var value = node.attrsMap[name];
            if (value) {
              var range = node.rawAttrsMap[name];
              if (name === 'v-for') {
                checkFor(node, ("v-for=\"" + value + "\""), warn, range);
              } else if (name === 'v-slot' || name[0] === '#') {
                checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
              } else if (onRE.test(name)) {
                checkEvent(value, (name + "=\"" + value + "\""), warn, range);
              } else {
                checkExpression(value, (name + "=\"" + value + "\""), warn, range);
              }
            }
          }
        }
        if (node.children) {
          for (var i = 0; i < node.children.length; i++) {
            checkNode(node.children[i], warn);
          }
        }
      } else if (node.type === 2) {
        checkExpression(node.expression, node.text, warn, node);
      }
    }
  
    function checkEvent (exp, text, warn, range) {
      var stripped = exp.replace(stripStringRE, '');
      var keywordMatch = stripped.match(unaryOperatorsRE);
      if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
        warn(
          "avoid using JavaScript unary operator as property name: " +
          "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
          range
        );
      }
      checkExpression(exp, text, warn, range);
    }
  
    function checkFor (node, text, warn, range) {
      checkExpression(node.for || '', text, warn, range);
      checkIdentifier(node.alias, 'v-for alias', text, warn, range);
      checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
      checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
    }
  
    function checkIdentifier (
      ident,
      type,
      text,
      warn,
      range
    ) {
      if (typeof ident === 'string') {
        try {
          new Function(("var " + ident + "=_"));
        } catch (e) {
          warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
        }
      }
    }
  
    function checkExpression (exp, text, warn, range) {
      try {
        new Function(("return " + exp));
      } catch (e) {
        var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
        if (keywordMatch) {
          warn(
            "avoid using JavaScript keyword as property name: " +
            "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
            range
          );
        } else {
          warn(
            "invalid expression: " + (e.message) + " in\n\n" +
            "    " + exp + "\n\n" +
            "  Raw expression: " + (text.trim()) + "\n",
            range
          );
        }
      }
    }
  
    function checkFunctionParameterExpression (exp, text, warn, range) {
      try {
        new Function(exp, '');
      } catch (e) {
        warn(
          "invalid function parameter expression: " + (e.message) + " in\n\n" +
          "    " + exp + "\n\n" +
          "  Raw expression: " + (text.trim()) + "\n",
          range
        );
      }
    }
  
    /*  */
  
    var range = 2;
  
    function generateCodeFrame (
      source,
      start,
      end
    ) {
      if ( start === void 0 ) start = 0;
      if ( end === void 0 ) end = source.length;
  
      var lines = source.split(/\r?\n/);
      var count = 0;
      var res = [];
      for (var i = 0; i < lines.length; i++) {
        count += lines[i].length + 1;
        if (count >= start) {
          for (var j = i - range; j <= i + range || end > count; j++) {
            if (j < 0 || j >= lines.length) { continue }
            res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
            var lineLength = lines[j].length;
            if (j === i) {
              // push underline
              var pad = start - (count - lineLength) + 1;
              var length = end > count ? lineLength - pad : end - start;
              res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
            } else if (j > i) {
              if (end > count) {
                var length$1 = Math.min(end - count, lineLength);
                res.push("   |  " + repeat$1("^", length$1));
              }
              count += lineLength + 1;
            }
          }
          break
        }
      }
      return res.join('\n')
    }
  
    function repeat$1 (str, n) {
      var result = '';
      if (n > 0) {
        while (true) { // eslint-disable-line
          if (n & 1) { result += str; }
          n >>>= 1;
          if (n <= 0) { break }
          str += str;
        }
      }
      return result
    }
  
    /*  */
  
  
  
    function createFunction (code, errors) {
      try {
        return new Function(code)
      } catch (err) {
        errors.push({ err: err, code: code });
        return noop
      }
    }
  
    function createCompileToFunctionFn (compile) {
      var cache = Object.create(null);
  
      return function compileToFunctions (
        template,
        options,
        vm
      ) {
        options = extend({}, options);
        var warn$$1 = options.warn || warn;
        delete options.warn;
  
        /* istanbul ignore if */
        {
          // detect possible CSP restriction
          try {
            new Function('return 1');
          } catch (e) {
            if (e.toString().match(/unsafe-eval|CSP/)) {
              warn$$1(
                'It seems you are using the standalone build of Vue.js in an ' +
                'environment with Content Security Policy that prohibits unsafe-eval. ' +
                'The template compiler cannot work in this environment. Consider ' +
                'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
                'templates into render functions.'
              );
            }
          }
        }
  
        // check cache
        var key = options.delimiters
          ? String(options.delimiters) + template
          : template;
        if (cache[key]) {
          return cache[key]
        }
  
        // compile
        var compiled = compile(template, options);
  
        // check compilation errors/tips
        {
          if (compiled.errors && compiled.errors.length) {
            if (options.outputSourceRange) {
              compiled.errors.forEach(function (e) {
                warn$$1(
                  "Error compiling template:\n\n" + (e.msg) + "\n\n" +
                  generateCodeFrame(template, e.start, e.end),
                  vm
                );
              });
            } else {
              warn$$1(
                "Error compiling template:\n\n" + template + "\n\n" +
                compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
                vm
              );
            }
          }
          if (compiled.tips && compiled.tips.length) {
            if (options.outputSourceRange) {
              compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
            } else {
              compiled.tips.forEach(function (msg) { return tip(msg, vm); });
            }
          }
        }
  
        // turn code into functions
        var res = {};
        var fnGenErrors = [];
        res.render = createFunction(compiled.render, fnGenErrors);
        res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
          return createFunction(code, fnGenErrors)
        });
  
        // check function generation errors.
        // this should only happen if there is a bug in the compiler itself.
        // mostly for codegen development use
        /* istanbul ignore if */
        {
          if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
            warn$$1(
              "Failed to generate render function:\n\n" +
              fnGenErrors.map(function (ref) {
                var err = ref.err;
                var code = ref.code;
  
                return ((err.toString()) + " in\n\n" + code + "\n");
            }).join('\n'),
              vm
            );
          }
        }
  
        return (cache[key] = res)
      }
    }
  
    /*  */
  
    function createCompilerCreator (baseCompile) {
      return function createCompiler (baseOptions) {
        function compile (
          template,
          options
        ) {
          var finalOptions = Object.create(baseOptions);
          var errors = [];
          var tips = [];
  
          var warn = function (msg, range, tip) {
            (tip ? tips : errors).push(msg);
          };
  
          if (options) {
            if (options.outputSourceRange) {
              // $flow-disable-line
              var leadingSpaceLength = template.match(/^\s*/)[0].length;
  
              warn = function (msg, range, tip) {
                var data = { msg: msg };
                if (range) {
                  if (range.start != null) {
                    data.start = range.start + leadingSpaceLength;
                  }
                  if (range.end != null) {
                    data.end = range.end + leadingSpaceLength;
                  }
                }
                (tip ? tips : errors).push(data);
              };
            }
            // merge custom modules
            if (options.modules) {
              finalOptions.modules =
                (baseOptions.modules || []).concat(options.modules);
            }
            // merge custom directives
            if (options.directives) {
              finalOptions.directives = extend(
                Object.create(baseOptions.directives || null),
                options.directives
              );
            }
            // copy other options
            for (var key in options) {
              if (key !== 'modules' && key !== 'directives') {
                finalOptions[key] = options[key];
              }
            }
          }
  
          finalOptions.warn = warn;
  
          var compiled = baseCompile(template.trim(), finalOptions);
          {
            detectErrors(compiled.ast, warn);
          }
          compiled.errors = errors;
          compiled.tips = tips;
          return compiled
        }
  
        return {
          compile: compile,
          compileToFunctions: createCompileToFunctionFn(compile)
        }
      }
    }
  
    /*  */
  
    // `createCompilerCreator` allows creating compilers that use alternative
    // parser/optimizer/codegen, e.g the SSR optimizing compiler.
    // Here we just export a default compiler using the default parts.
    var createCompiler = createCompilerCreator(function baseCompile (
      template,
      options
    ) {
      var ast = parse(template.trim(), options);
      if (options.optimize !== false) {
        optimize(ast, options);
      }
      var code = generate(ast, options);
      return {
        ast: ast,
        render: code.render,
        staticRenderFns: code.staticRenderFns
      }
    });
  
    /*  */
  
    var ref$1 = createCompiler(baseOptions);
    var compile = ref$1.compile;
    var compileToFunctions = ref$1.compileToFunctions;
  
    /*  */
  
    // check whether current browser encodes a char inside attribute values
    var div;
    function getShouldDecode (href) {
      div = div || document.createElement('div');
      div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
      return div.innerHTML.indexOf('&#10;') > 0
    }
  
    // #3663: IE encodes newlines inside attribute values while other browsers don't
    var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
    // #6828: chrome encodes content in a[href]
    var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
  
    /*  */
  
    var idToTemplate = cached(function (id) {
      var el = query(id);
      return el && el.innerHTML
    });
  
    var mount = Vue.prototype.$mount;
    Vue.prototype.$mount = function (
      el,
      hydrating
    ) {
      el = el && query(el);
  
      /* istanbul ignore if */
      if (el === document.body || el === document.documentElement) {
        warn(
          "Do not mount Vue to <html> or <body> - mount to normal elements instead."
        );
        return this
      }
  
      var options = this.$options;
      // resolve template/el and convert to render function
      if (!options.render) {
        var template = options.template;
        if (template) {
          if (typeof template === 'string') {
            if (template.charAt(0) === '#') {
              template = idToTemplate(template);
              /* istanbul ignore if */
              if (!template) {
                warn(
                  ("Template element not found or is empty: " + (options.template)),
                  this
                );
              }
            }
          } else if (template.nodeType) {
            template = template.innerHTML;
          } else {
            {
              warn('invalid template option:' + template, this);
            }
            return this
          }
        } else if (el) {
          template = getOuterHTML(el);
        }
        if (template) {
          /* istanbul ignore if */
          if (config.performance && mark) {
            mark('compile');
          }
  
          var ref = compileToFunctions(template, {
            outputSourceRange: "development" !== 'production',
            shouldDecodeNewlines: shouldDecodeNewlines,
            shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
            delimiters: options.delimiters,
            comments: options.comments
          }, this);
          var render = ref.render;
          var staticRenderFns = ref.staticRenderFns;
          options.render = render;
          options.staticRenderFns = staticRenderFns;
  
          /* istanbul ignore if */
          if (config.performance && mark) {
            mark('compile end');
            measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
          }
        }
      }
      return mount.call(this, el, hydrating)
    };
  
    /**
     * Get outerHTML of elements, taking care
     * of SVG elements in IE as well.
     */
    function getOuterHTML (el) {
      if (el.outerHTML) {
        return el.outerHTML
      } else {
        var container = document.createElement('div');
        container.appendChild(el.cloneNode(true));
        return container.innerHTML
      }
    }
  
    Vue.compile = compileToFunctions;

    return Vue;
  
  });
  

//Included:lib/003.simplest-db-v1.0.3.part.js
/*lib:simplest-db@1.0.3 + modifications*/
(function (root, factory) {
    const scope = (typeof window === 'object') ? window : global;
    if(typeof scope === "undefined") return;
    if("SimplestDB" in scope) return scope.SimplestDB;
    const output = factory();
    if(typeof module === 'object' && typeof module.exports === 'object')
        module.exports = output;
    if(typeof define === 'function' && define.amd)
        define([], factory);
    if(typeof exports === 'object')
        exports["SimplestDB"] = output;
    scope["SimplestDB"] = output;
})(this, function() {

    class SimplestDB {

        static create(...args) {
            return new this(...args);
        }

        static getFS() {
            if(this.$fs) {
                return this.$fs;
            }
            this.$fs = new SimplestDB({
                schema: "system",
                tables: {
                    "fs": {
                        columns: {
                            "path": { is_type: "string" },
                            "contents": { is_type: "string" },
                            "metadata": { is_type: "object" },
                        }
                    }
                }
            });
            return this.$fs;
        }

        static getCache() {
            if(this.$cache) {
                return this.$cache;
            }
            this.$cache = new SimplestDB({
                schema: "system",
                tables: {
                    "cache": {
                        columns: {
                            "key": { is_type: "string" },
                            "value": { is_type: "string" },
                        }
                    }
                }
            });
            return this.$cache;
        }

        constructor(schema = {}, noValidate = false) {
            if(typeof schema !== "object") throw new Error("Required «schema» to be an object, found «" + typeof(schema) + "» [0301]");
            if(typeof schema.schema !== "string") schema.schema = "system";
            if(!("attributes" in schema)) {Object.assign(schema, {attributes:{}})}
            if(!("tables" in schema)) {Object.assign(schema, {tables:{}})}
            this.schema = this.validateSchema(schema);
            this.noValidate = noValidate;
            this.baseDir = (typeof schema.baseDir === "string" ? schema.baseDir.replace(/^\/+/g, "").replace(/\/+$/g, "") : "./sdb_modules") + "/";
            if(typeof global === "object") {
                const fs = require("fs");
                const hasBaseDir = fs.existsSync(this.baseDir) && fs.lstatSync(this.baseDir).isDirectory();
                if(!hasBaseDir) {
                    fs.mkdirSync(this.baseDir);
                }
            }
        }

        validateTable(tableId) {
            if(typeof tableId !== "string") throw new Error("Required parameter table «" + tableId + "» to be a string, found «" + typeof(tableId) + "» [0101]");
            if(this.noValidate) return this.schema.tables[tableId];
            if(!(tableId in this.schema.tables)) throw new Error("Required parameter table «" + tableId + "» to exist as table in schema, only accepted: «" + Object.keys(this.schema.tables).join("», «") + "» [0402]");
            return this.schema.tables[tableId];
        }
        
        validateRow(tableId, value) {
            if(typeof tableId !== "string") throw new Error("Required parameter table «" + tableId + "» to be a string, found «" + typeof(tableId) + "» [0801]");
            if(this.noValidate) return this.schema.tables[tableId];
            if(!(tableId in this.schema.tables)) throw new Error("Required parameter table «" + tableId + "» to exist as table in schema, only accepted: «" + Object.keys(this.schema.tables).join("», «") + "» [0802]");
            return true;
        }

        validateSchema(schema) {
            if(typeof schema !== "object") throw new Error("Required «schema» to be an object, found «" + typeof(schema) + "» [0301]");
            if(typeof schema.schema !== "string") throw new Error("Required «schema.schema» to be a string, found «" + typeof(schema) + "» [0302]");
            if(typeof schema.attributes === "undefined") schema.attributes = {};
            if(typeof schema.attributes !== "object") throw new Error("Required «schema.attributes» to be an object, found «" + typeof(attributes) + "» [0303]");
            if(typeof schema.tables === "undefined") schema.tables = {};
            if(typeof schema.tables !== "object") throw new Error("Required «schema.tables» to be an object, found «" + typeof(tables) + "» [0304]");
            const tableIds = Object.keys(schema.tables);
            for(let indexTable = 0; indexTable < tableIds.length; indexTable++) {
                const tableId = tableIds[indexTable];
                if(typeof schema.tables[tableId] !== "object") throw new Error("Required «schema.tables[" + JSON.stringify(tableId) + "]» to be an object, found «" + typeof(schema.tables[tableId]) + "» [0305]");
                if(typeof schema.tables[tableId].attributes === "undefined") schema.tables[tableId].attributes = {};
                if(typeof schema.tables[tableId].attributes !== "object") throw new Error("Required «schema.tables[" + JSON.stringify(tableId) + "].attributes» to be an object, found «" + typeof(attributes) + "» [0306]");
                if(typeof schema.tables[tableId].columns === "undefined") schema.tables[tableId].columns = {};
                if(typeof schema.tables[tableId].columns !== "object") throw new Error("Required «schema.tables[" + JSON.stringify(tableId) + "].columns» to be an object, found «" + typeof(columns) + "» [0307]");
                const tableData = schema.tables[tableId];
                const columnIds = Object.keys(tableData.columns);
                for(let indexColumn = 0; indexColumn < columnIds.length; indexColumn++) {
                    const columnId = columnIds[indexColumn];
                    const columnData = tableData.columns[columnId];
                    if(typeof columnData !== "object") throw new Error("Required «schema.tables[" + JSON.stringify(tableId) + "].columns[" + JSON.stringify(columnId) + "]»")
                    if(typeof columnData.attributes === "undefined") columnData.attributes = {};
                    if(typeof columnData.attributes !== "object") throw new Error("Required «schema.tables[" + JSON.stringify(tableId) + "].columns[" + JSON.stringify(columnId) + "].attributes»")
                    if(typeof columnData.is_type !== "string") throw new Error("Required «schema.tables[" + JSON.stringify(tableId) + "].columns[" + JSON.stringify(columnId) + "].is_type»")
                }
            }
            return schema;
        }

        setSchema(schema) {
            this.schema = this.validateSchema(schema);
        }

        consumeIdOf(tableId) {
            if(typeof tableId !== "string") throw new Error("Required «tableId» to be an object, found «" + typeof(tableId) + "» [0901]");
            this.validateTable(tableId);
            if(typeof window === "object") {
                const storageId = "SDB_STORAGE_FOR_" + this.schema.schema;
                if(!(storageId in localStorage)) {
                    localStorage[storageId] = JSON.stringify({$KEYS:{[tableId]:1},[tableId]:{}});
                    return 1;
                }
                const storageJson = localStorage[storageId];
                const storageData = JSON.parse(storageJson);
                const tableLastId = storageData.$KEYS[tableId]++;
                localStorage[storageId] = JSON.stringify(storageData);
                return tableLastId;
            } else if(typeof global === "object") {
                const storageId = this.baseDir + this.schema.schema + ".data.json";
                const fs = require("fs");
                if(!fs.existsSync(storageId)) {
                    fs.writeFileSync(storageId, JSON.stringify({$KEYS:{[tableId]:1},[tableId]:{}}));
                    return 1;
                }
                const storageJson = fs.readFileSync(storageId).toString();
                const storageData = JSON.parse(storageJson);
                const tableLastId = storageData.$KEYS[tableId]++;
                fs.writeFileSync(storageId, JSON.stringify(storageData), "utf8");
                return tableLastId;
            }
        }

        getData(tableId) {
            if(typeof tableId !== "string") throw new Error("Required «tableId» to be an object, found «" + typeof(tableId) + "» [0401]");
            this.validateTable(tableId);
            if(typeof window === "object") {
                const storageId = "SDB_STORAGE_FOR_" + this.schema.schema;
                if(!(storageId in localStorage)) {
                    localStorage[storageId] = JSON.stringify({$KEYS:{}});
                }
                const storageJson = localStorage[storageId];
                const storageData = JSON.parse(storageJson);
                if(!(tableId in storageData)) {
                    return {};
                    throw new Error("Required model «" + tableId + "» to exist in database and not only in schema «" + this.schema.schema + "» [0402]");
                }
                return storageData[tableId];
            } else if(typeof global === "object") {
                const storageId = this.baseDir + this.schema.schema + ".data.json";
                const fs = require("fs");
                if(!fs.existsSync(storageId)) {
                    fs.writeFileSync(storageId, JSON.stringify({$KEYS:{}}), "utf8");
                }
                const storageJson = fs.readFileSync(storageId).toString();
                const storageData = JSON.parse(storageJson);
                if(!(tableId in storageData)) {
                    return {};
                    throw new Error("Required model «" + tableId + "» to exist in database and not only in schema «" + this.schema.schema + "» [0403]");
                }
                return Object.assign({}, storageData[tableId]);
            }
        }
        
        setData(tableId, modelId, data) {
            if(typeof window === "object") {
                if(typeof tableId !== "string") throw new Error("Required «tableId» to be a string, found «" + typeof(tableId) + "» [0501]");
                if(typeof modelId !== "number") throw new Error("Required «modelId» to be an number, found «" + typeof(modelId) + "» [0502]");
                if(typeof data === "undefined") {}
                else if(typeof data !== "object") throw new Error("Required «data» to be an object, found «" + typeof(data) + "» [0503]");
                this.validateTable(tableId);
                const storageId = "SDB_STORAGE_FOR_" + this.schema.schema;
                if(!(storageId in localStorage)) {
                    localStorage[storageId] = JSON.stringify({$KEYS:{}});
                }
                const storageJson = localStorage[storageId];
                const storageData = JSON.parse(storageJson);
                if(!(tableId in storageData)) {
                    storageData[tableId] = {};
                    storageData.$KEYS[tableId] = 1;
                }
                let operation = "update";
                let selectedId = (modelId === 0) ? storageData.$KEYS[tableId]++ : modelId; 
                if(!(selectedId in storageData[tableId])) {
                    if(modelId !== 0) {
                        throw new Error("Required parameter modelId «" + modelId + "» to be 0 or to exist as id in table «" + storageId + ":" + tableId + "» [0504]")
                    } else operation = "insert";
                }
                if(typeof data === "undefined") {
                    delete storageData[tableId][selectedId];
                } else {
                    if(operation === "insert") {
                        data.id = selectedId;
                    }
                    storageData[tableId][selectedId] = Object.assign({}, storageData[tableId][selectedId] || {}, data);
                }
                const json = JSON.stringify(storageData);
                localStorage[storageId] = json;
                return selectedId;
            } else if(typeof global === "object") {
                if(typeof tableId !== "string") throw new Error("Required «tableId» to be a string, found «" + typeof(tableId) + "» [1101]");
                if(typeof modelId !== "number") throw new Error("Required «modelId» to be an number, found «" + typeof(modelId) + "» [1102]");
                if(typeof data === "undefined") {}
                else if(typeof data !== "object") throw new Error("Required «data» to be an object, found «" + typeof(data) + "» [1103]");
                this.validateTable(tableId);
                const fs = require("fs");
                const storageId = this.baseDir + this.schema.schema + ".data.json";
                if(!fs.existsSync(storageId)) {
                    fs.writeFileSync(storageId, JSON.stringify({[tableId]:{},$KEYS:{[tableId]:1}}), "utf8");
                }
                const storageJson0 = fs.readFileSync(storageId).toString();
                const storageData = JSON.parse(storageJson0);
                if(!(tableId in storageData)) {
                    storageData[tableId] = {};
                    storageData.$KEYS[tableId] = 1;
                }
                let operation = "update";
                let selectedId = modelId === 0 ? storageData.$KEYS[tableId]++ : modelId; 
                if(!(selectedId in storageData[tableId])) {
                    if(modelId !== 0) {
                        throw new Error("Required id «" + modelId + "» to be 0 (insert) or to exist as id in table «" + storageId + ":" + tableId + "#" + modelId + "» [1104]")
                    } else operation = "insert";
                }
                if(typeof data === "undefined") {
                    delete storageData[tableId][selectedId];
                } else {
                    if(operation === "insert") {
                        data.id = selectedId;
                    }
                    storageData[tableId][selectedId] = Object.assign({}, storageData[tableId][selectedId] || {}, data);
                }
                const json = JSON.stringify(storageData);
                fs.writeFileSync(storageId, json, "utf8");
                return selectedId;
            }
        }

        select(tableId, filter) {
            if(typeof tableId !== "string") throw new Error("Required «tableId» to be a string, found «" + typeof(tableId) + "» [0601]");
            this.validateTable(tableId);
            const data = this.getData(tableId);
            if(typeof filter === "function") {
                return Object.values(data).filter(filter).reduce((output, item) => {
                    try {
                        output[item.id] = item;
                        return output;
                    } catch (error) {
                        return false;
                    }
                }, {});
            } else if(typeof filter === "undefined") {
                return data;
            } else {
                throw new Error("Required «filter» to be a valid, found «" + typeof(filter) + "» type [0602]");
            }
        }

        insert(tableId, value) {
            if(typeof tableId !== "string") throw new Error("Required «tableId» to be a string, found «" + typeof(tableId) + "» [0701]");
            if(typeof value !== "object") throw new Error("Required «value» to be an object, found «" + typeof(value) + "» [0702]");
            this.validateRow(tableId, value);
            return this.setData(tableId, 0, value);
        }

        update(tableId, instanceId, value) {
            if(typeof tableId !== "string") throw new Error("Required «tableId» to be a string, found «" + typeof(tableId) + "» [1201]");
            if(typeof instanceId !== "number") throw new Error("Required «instanceId» to be an number, found «" + typeof(instanceId) + "» [1202]");
            if(typeof value !== "object") throw new Error("Required «value» to be an object, found «" + typeof(value) + "» [1203]");
            this.validateRow(tableId, value);
            return this.setData(tableId, instanceId, value);
        }

        delete(tableId, instanceId) {
            if(typeof tableId !== "string") throw new Error("Required «tableId» to be a string, found «" + typeof(tableId) + "» [1401]");
            if(typeof instanceId !== "number") throw new Error("Required «instanceId» to be an number, found «" + typeof(instanceId) + "» [1402]");
            this.validateTable(tableId);
            return this.setData(tableId, instanceId, undefined);
        }
    }
  
    SimplestDB.default = SimplestDB;

    return SimplestDB;

}, this);

//Included:lib/004.ejs.part.js
(function (f) {
  if (typeof define === "function" && define.amd) {
    define([], f)
  }
  const o = f();
  if (typeof exports === "object" && typeof module !== "undefined") {
    module.exports = o
  }
  var g;
  if (typeof window !== "undefined") {
    g = window
  } else if (typeof global !== "undefined") {
    g = global
  } else if (typeof self !== "undefined") {
    g = self
  } else {
    g = this
  }
  g.ejs = o;
})(function () {
  var define, module, exports; return (function () { function r(e, n, t) { function o(i, f) { if (!n[i]) { if (!e[i]) { var c = "function" == typeof require && require; if (!f && c) return c(i, !0); if (u) return u(i, !0); var a = new Error("Cannot find module '" + i + "'"); throw a.code = "MODULE_NOT_FOUND", a } var p = n[i] = { exports: {} }; e[i][0].call(p.exports, function (r) { var n = e[i][1][r]; return o(n || r) }, p, p.exports, r, e, n, t) } return n[i].exports } for (var u = "function" == typeof require && require, i = 0; i < t.length; i++)o(t[i]); return o } return r })()({
    1: [function (require, module, exports) {
      /*
       * EJS Embedded JavaScript templates (v3.1.6)
       * Copyright 2112 Matthew Eernisse (mde@fleegix.org)
       *
       * Licensed under the Apache License, Version 2.0 (the "License");
       * you may not use this file except in compliance with the License.
       * You may obtain a copy of the License at
       *
       *         http://www.apache.org/licenses/LICENSE-2.0
       *
       * Unless required by applicable law or agreed to in writing, software
       * distributed under the License is distributed on an "AS IS" BASIS,
       * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       * See the License for the specific language governing permissions and
       * limitations under the License.
       *
      */

      'use strict';

      /**
       * @file Embedded JavaScript templating engine. {@link http://ejs.co}
       * @author Matthew Eernisse <mde@fleegix.org>
       * @author Tiancheng "Timothy" Gu <timothygu99@gmail.com>
       * @project EJS
       * @license {@link http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0}
       */

      /**
       * EJS internal functions.
       *
       * Technically this "module" lies in the same file as {@link module:ejs}, for
       * the sake of organization all the private functions re grouped into this
       * module.
       *
       * @module ejs-internal
       * @private
       */

      /**
       * Embedded JavaScript templating engine.
       *
       * @module ejs
       * @public
       */

      var fs = require('fs');
      var path = require('path');
      var utils = require('./utils');

      var scopeOptionWarned = false;
      /** @type {string} */
      var _VERSION_STRING = require('../package.json').version;
      var _DEFAULT_OPEN_DELIMITER = '<';
      var _DEFAULT_CLOSE_DELIMITER = '>';
      var _DEFAULT_DELIMITER = '%';
      var _DEFAULT_LOCALS_NAME = 'locals';
      var _NAME = 'ejs';
      var _REGEX_STRING = '(<%%|%%>|<%=|<%-|<%_|<%#|<%|%>|-%>|_%>)';
      var _OPTS_PASSABLE_WITH_DATA = ['delimiter', 'scope', 'context', 'debug', 'compileDebug',
        'client', '_with', 'rmWhitespace', 'strict', 'filename', 'async'];
      // We don't allow 'cache' option to be passed in the data obj for
      // the normal `render` call, but this is where Express 2 & 3 put it
      // so we make an exception for `renderFile`
      var _OPTS_PASSABLE_WITH_DATA_EXPRESS = _OPTS_PASSABLE_WITH_DATA.concat('cache');
      var _BOM = /^\uFEFF/;

      /**
       * EJS template function cache. This can be a LRU object from lru-cache NPM
       * module. By default, it is {@link module:utils.cache}, a simple in-process
       * cache that grows continuously.
       *
       * @type {Cache}
       */

      exports.cache = utils.cache;

      /**
       * Custom file loader. Useful for template preprocessing or restricting access
       * to a certain part of the filesystem.
       *
       * @type {fileLoader}
       */

      exports.fileLoader = fs.readFileSync;

      /**
       * Name of the object containing the locals.
       *
       * This variable is overridden by {@link Options}`.localsName` if it is not
       * `undefined`.
       *
       * @type {String}
       * @public
       */

      exports.localsName = _DEFAULT_LOCALS_NAME;

      /**
       * Promise implementation -- defaults to the native implementation if available
       * This is mostly just for testability
       *
       * @type {PromiseConstructorLike}
       * @public
       */

      exports.promiseImpl = (new Function('return this;'))().Promise;

      /**
       * Get the path to the included file from the parent file path and the
       * specified path.
       *
       * @param {String}  name     specified path
       * @param {String}  filename parent file path
       * @param {Boolean} [isDir=false] whether the parent file path is a directory
       * @return {String}
       */
      exports.resolveInclude = function (name, filename, isDir) {
        var dirname = path.dirname;
        var extname = path.extname;
        var resolve = path.resolve;
        var includePath = resolve(isDir ? filename : dirname(filename), name);
        var ext = extname(name);
        if (!ext) {
          includePath += '.ejs';
        }
        return includePath;
      };

      /**
       * Try to resolve file path on multiple directories
       *
       * @param  {String}        name  specified path
       * @param  {Array<String>} paths list of possible parent directory paths
       * @return {String}
       */
      function resolvePaths(name, paths) {
        var filePath;
        if (paths.some(function (v) {
          filePath = exports.resolveInclude(name, v, true);
          return fs.existsSync(filePath);
        })) {
          return filePath;
        }
      }

      /**
       * Get the path to the included file by Options
       *
       * @param  {String}  path    specified path
       * @param  {Options} options compilation options
       * @return {String}
       */
      function getIncludePath(path, options) {
        var includePath;
        var filePath;
        var views = options.views;
        var match = /^[A-Za-z]+:\\|^\//.exec(path);

        // Abs path
        if (match && match.length) {
          path = path.replace(/^\/*/, '');
          if (Array.isArray(options.root)) {
            includePath = resolvePaths(path, options.root);
          } else {
            includePath = exports.resolveInclude(path, options.root || '/', true);
          }
        }
        // Relative paths
        else {
          // Look relative to a passed filename first
          if (options.filename) {
            filePath = exports.resolveInclude(path, options.filename);
            if (fs.existsSync(filePath)) {
              includePath = filePath;
            }
          }
          // Then look in any views directories
          if (!includePath && Array.isArray(views)) {
            includePath = resolvePaths(path, views);
          }
          if (!includePath && typeof options.includer !== 'function') {
            throw new Error('Could not find the include file "' +
              options.escapeFunction(path) + '"');
          }
        }
        return includePath;
      }

      /**
       * Get the template from a string or a file, either compiled on-the-fly or
       * read from cache (if enabled), and cache the template if needed.
       *
       * If `template` is not set, the file specified in `options.filename` will be
       * read.
       *
       * If `options.cache` is true, this function reads the file from
       * `options.filename` so it must be set prior to calling this function.
       *
       * @memberof module:ejs-internal
       * @param {Options} options   compilation options
       * @param {String} [template] template source
       * @return {(TemplateFunction|ClientFunction)}
       * Depending on the value of `options.client`, either type might be returned.
       * @static
       */

      function handleCache(options, template) {
        var func;
        var filename = options.filename;
        var hasTemplate = arguments.length > 1;

        if (options.cache) {
          if (!filename) {
            throw new Error('cache option requires a filename');
          }
          func = exports.cache.get(filename);
          if (func) {
            return func;
          }
          if (!hasTemplate) {
            template = fileLoader(filename).toString().replace(_BOM, '');
          }
        }
        else if (!hasTemplate) {
          // istanbul ignore if: should not happen at all
          if (!filename) {
            throw new Error('Internal EJS error: no file name or template '
              + 'provided');
          }
          template = fileLoader(filename).toString().replace(_BOM, '');
        }
        func = exports.compile(template, options);
        if (options.cache) {
          exports.cache.set(filename, func);
        }
        return func;
      }

      /**
       * Try calling handleCache with the given options and data and call the
       * callback with the result. If an error occurs, call the callback with
       * the error. Used by renderFile().
       *
       * @memberof module:ejs-internal
       * @param {Options} options    compilation options
       * @param {Object} data        template data
       * @param {RenderFileCallback} cb callback
       * @static
       */

      function tryHandleCache(options, data, cb) {
        var result;
        if (!cb) {
          if (typeof exports.promiseImpl == 'function') {
            return new exports.promiseImpl(function (resolve, reject) {
              try {
                result = handleCache(options)(data);
                resolve(result);
              }
              catch (err) {
                reject(err);
              }
            });
          }
          else {
            throw new Error('Please provide a callback function');
          }
        }
        else {
          try {
            result = handleCache(options)(data);
          }
          catch (err) {
            return cb(err);
          }

          cb(null, result);
        }
      }

      /**
       * fileLoader is independent
       *
       * @param {String} filePath ejs file path.
       * @return {String} The contents of the specified file.
       * @static
       */

      function fileLoader(filePath) {
        return exports.fileLoader(filePath);
      }

      /**
       * Get the template function.
       *
       * If `options.cache` is `true`, then the template is cached.
       *
       * @memberof module:ejs-internal
       * @param {String}  path    path for the specified file
       * @param {Options} options compilation options
       * @return {(TemplateFunction|ClientFunction)}
       * Depending on the value of `options.client`, either type might be returned
       * @static
       */

      function includeFile(path, options) {
        var opts = utils.shallowCopy({}, options);
        opts.filename = getIncludePath(path, opts);
        if (typeof options.includer === 'function') {
          var includerResult = options.includer(path, opts.filename);
          if (includerResult) {
            if (includerResult.filename) {
              opts.filename = includerResult.filename;
            }
            if (includerResult.template) {
              return handleCache(opts, includerResult.template);
            }
          }
        }
        return handleCache(opts);
      }

      /**
       * Re-throw the given `err` in context to the `str` of ejs, `filename`, and
       * `lineno`.
       *
       * @implements {RethrowCallback}
       * @memberof module:ejs-internal
       * @param {Error}  err      Error object
       * @param {String} str      EJS source
       * @param {String} flnm     file name of the EJS file
       * @param {Number} lineno   line number of the error
       * @param {EscapeCallback} esc
       * @static
       */

      function rethrow(err, str, flnm, lineno, esc) {
        var lines = str.split('\n');
        var start = Math.max(lineno - 3, 0);
        var end = Math.min(lines.length, lineno + 3);
        var filename = esc(flnm);
        // Error context
        var context = lines.slice(start, end).map(function (line, i) {
          var curr = i + start + 1;
          return (curr == lineno ? ' >> ' : '    ')
            + curr
            + '| '
            + line;
        }).join('\n');

        // Alter exception message
        err.path = filename;
        err.message = (filename || 'ejs') + ':'
          + lineno + '\n'
          + context + '\n\n'
          + err.message;

        throw err;
      }

      function stripSemi(str) {
        return str.replace(/;(\s*$)/, '$1');
      }

      /**
       * Compile the given `str` of ejs into a template function.
       *
       * @param {String}  template EJS template
       *
       * @param {Options} [opts] compilation options
       *
       * @return {(TemplateFunction|ClientFunction)}
       * Depending on the value of `opts.client`, either type might be returned.
       * Note that the return type of the function also depends on the value of `opts.async`.
       * @public
       */

      exports.compile = function compile(template, opts) {
        var templ;

        // v1 compat
        // 'scope' is 'context'
        // FIXME: Remove this in a future version
        if (opts && opts.scope) {
          if (!scopeOptionWarned) {
            console.warn('`scope` option is deprecated and will be removed in EJS 3');
            scopeOptionWarned = true;
          }
          if (!opts.context) {
            opts.context = opts.scope;
          }
          delete opts.scope;
        }
        templ = new Template(template, opts);
        return templ.compile();
      };

      /**
       * Render the given `template` of ejs.
       *
       * If you would like to include options but not data, you need to explicitly
       * call this function with `data` being an empty object or `null`.
       *
       * @param {String}   template EJS template
       * @param {Object}  [data={}] template data
       * @param {Options} [opts={}] compilation and rendering options
       * @return {(String|Promise<String>)}
       * Return value type depends on `opts.async`.
       * @public
       */

      exports.render = function (template, d, o) {
        var data = d || {};
        var opts = o || {};

        // No options object -- if there are optiony names
        // in the data, copy them to options
        if (arguments.length == 2) {
          utils.shallowCopyFromList(opts, data, _OPTS_PASSABLE_WITH_DATA);
        }

        return handleCache(opts, template)(data);
      };

      /**
       * Render an EJS file at the given `path` and callback `cb(err, str)`.
       *
       * If you would like to include options but not data, you need to explicitly
       * call this function with `data` being an empty object or `null`.
       *
       * @param {String}             path     path to the EJS file
       * @param {Object}            [data={}] template data
       * @param {Options}           [opts={}] compilation and rendering options
       * @param {RenderFileCallback} cb callback
       * @public
       */

      exports.renderFile = function () {
        var args = Array.prototype.slice.call(arguments);
        var filename = args.shift();
        var cb;
        var opts = { filename: filename };
        var data;
        var viewOpts;

        // Do we have a callback?
        if (typeof arguments[arguments.length - 1] == 'function') {
          cb = args.pop();
        }
        // Do we have data/opts?
        if (args.length) {
          // Should always have data obj
          data = args.shift();
          // Normal passed opts (data obj + opts obj)
          if (args.length) {
            // Use shallowCopy so we don't pollute passed in opts obj with new vals
            utils.shallowCopy(opts, args.pop());
          }
          // Special casing for Express (settings + opts-in-data)
          else {
            // Express 3 and 4
            if (data.settings) {
              // Pull a few things from known locations
              if (data.settings.views) {
                opts.views = data.settings.views;
              }
              if (data.settings['view cache']) {
                opts.cache = true;
              }
              // Undocumented after Express 2, but still usable, esp. for
              // items that are unsafe to be passed along with data, like `root`
              viewOpts = data.settings['view options'];
              if (viewOpts) {
                utils.shallowCopy(opts, viewOpts);
              }
            }
            // Express 2 and lower, values set in app.locals, or people who just
            // want to pass options in their data. NOTE: These values will override
            // anything previously set in settings  or settings['view options']
            utils.shallowCopyFromList(opts, data, _OPTS_PASSABLE_WITH_DATA_EXPRESS);
          }
          opts.filename = filename;
        }
        else {
          data = {};
        }

        return tryHandleCache(opts, data, cb);
      };

      /**
       * Clear intermediate JavaScript cache. Calls {@link Cache#reset}.
       * @public
       */

      /**
       * EJS template class
       * @public
       */
      exports.Template = Template;

      exports.clearCache = function () {
        exports.cache.reset();
      };

      function Template(text, opts) {
        opts = opts || {};
        var options = {};
        this.templateText = text;
        /** @type {string | null} */
        this.mode = null;
        this.truncate = false;
        this.currentLine = 1;
        this.source = '';
        options.client = opts.client || false;
        options.escapeFunction = opts.escape || opts.escapeFunction || utils.escapeXML;
        options.compileDebug = opts.compileDebug !== false;
        options.debug = !!opts.debug;
        options.filename = opts.filename;
        options.openDelimiter = opts.openDelimiter || exports.openDelimiter || _DEFAULT_OPEN_DELIMITER;
        options.closeDelimiter = opts.closeDelimiter || exports.closeDelimiter || _DEFAULT_CLOSE_DELIMITER;
        options.delimiter = opts.delimiter || exports.delimiter || _DEFAULT_DELIMITER;
        options.strict = opts.strict || false;
        options.context = opts.context;
        options.cache = opts.cache || false;
        options.rmWhitespace = opts.rmWhitespace;
        options.root = opts.root;
        options.includer = opts.includer;
        options.outputFunctionName = opts.outputFunctionName;
        options.localsName = opts.localsName || exports.localsName || _DEFAULT_LOCALS_NAME;
        options.views = opts.views;
        options.async = opts.async;
        options.destructuredLocals = opts.destructuredLocals;
        options.legacyInclude = typeof opts.legacyInclude != 'undefined' ? !!opts.legacyInclude : true;

        if (options.strict) {
          options._with = false;
        }
        else {
          options._with = typeof opts._with != 'undefined' ? opts._with : true;
        }

        this.opts = options;

        this.regex = this.createRegex();
      }

      Template.modes = {
        EVAL: 'eval',
        ESCAPED: 'escaped',
        RAW: 'raw',
        COMMENT: 'comment',
        LITERAL: 'literal'
      };

      Template.prototype = {
        createRegex: function () {
          var str = _REGEX_STRING;
          var delim = utils.escapeRegExpChars(this.opts.delimiter);
          var open = utils.escapeRegExpChars(this.opts.openDelimiter);
          var close = utils.escapeRegExpChars(this.opts.closeDelimiter);
          str = str.replace(/%/g, delim)
            .replace(/</g, open)
            .replace(/>/g, close);
          return new RegExp(str);
        },

        compile: function () {
          /** @type {string} */
          var src;
          /** @type {ClientFunction} */
          var fn;
          var opts = this.opts;
          var prepended = '';
          var appended = '';
          /** @type {EscapeCallback} */
          var escapeFn = opts.escapeFunction;
          /** @type {FunctionConstructor} */
          var ctor;
          /** @type {string} */
          var sanitizedFilename = opts.filename ? JSON.stringify(opts.filename) : 'undefined';

          if (!this.source) {
            this.generateSource();
            prepended +=
              '  var __output = "";\n' +
              '  function __append(s) { if (s !== undefined && s !== null) __output += s }\n';
            if (opts.outputFunctionName) {
              prepended += '  var ' + opts.outputFunctionName + ' = __append;' + '\n';
            }
            if (opts.destructuredLocals && opts.destructuredLocals.length) {
              var destructuring = '  var __locals = (' + opts.localsName + ' || {}),\n';
              for (var i = 0; i < opts.destructuredLocals.length; i++) {
                var name = opts.destructuredLocals[i];
                if (i > 0) {
                  destructuring += ',\n  ';
                }
                destructuring += name + ' = __locals.' + name;
              }
              prepended += destructuring + ';\n';
            }
            if (opts._with !== false) {
              prepended += '  with (' + opts.localsName + ' || {}) {' + '\n';
              appended += '  }' + '\n';
            }
            appended += '  return __output;' + '\n';
            this.source = prepended + this.source + appended;
          }

          if (opts.compileDebug) {
            src = 'var __line = 1' + '\n'
              + '  , __lines = ' + JSON.stringify(this.templateText) + '\n'
              + '  , __filename = ' + sanitizedFilename + ';' + '\n'
              + 'try {' + '\n'
              + this.source
              + '} catch (e) {' + '\n'
              + '  rethrow(e, __lines, __filename, __line, escapeFn);' + '\n'
              + '}' + '\n';
          }
          else {
            src = this.source;
          }

          if (opts.client) {
            src = 'escapeFn = escapeFn || ' + escapeFn.toString() + ';' + '\n' + src;
            if (opts.compileDebug) {
              src = 'rethrow = rethrow || ' + rethrow.toString() + ';' + '\n' + src;
            }
          }

          if (opts.strict) {
            src = '"use strict";\n' + src;
          }
          if (opts.debug) {
            console.log(src);
          }
          if (opts.compileDebug && opts.filename) {
            src = src + '\n'
              + '//# sourceURL=' + sanitizedFilename + '\n';
          }

          try {
            if (opts.async) {
              // Have to use generated function for this, since in envs without support,
              // it breaks in parsing
              try {
                ctor = (new Function('return (async function(){}).constructor;'))();
              }
              catch (e) {
                if (e instanceof SyntaxError) {
                  throw new Error('This environment does not support async/await');
                }
                else {
                  throw e;
                }
              }
            }
            else {
              ctor = Function;
            }
            fn = new ctor(opts.localsName + ', escapeFn, include, rethrow', src);
          }
          catch (e) {
            // istanbul ignore else
            if (e instanceof SyntaxError) {
              if (opts.filename) {
                e.message += ' in ' + opts.filename;
              }
              e.message += ' while compiling ejs\n\n';
              e.message += 'If the above error is not helpful, you may want to try EJS-Lint:\n';
              e.message += 'https://github.com/RyanZim/EJS-Lint';
              if (!opts.async) {
                e.message += '\n';
                e.message += 'Or, if you meant to create an async function, pass `async: true` as an option.';
              }
            }
            throw e;
          }

          // Return a callable function which will execute the function
          // created by the source-code, with the passed data as locals
          // Adds a local `include` function which allows full recursive include
          var returnedFn = opts.client ? fn : function anonymous(data) {
            var include = function (path, includeData) {
              var d = utils.shallowCopy({}, data);
              if (includeData) {
                d = utils.shallowCopy(d, includeData);
              }
              return includeFile(path, opts)(d);
            };
            return fn.apply(opts.context, [data || {}, escapeFn, include, rethrow]);
          };
          if (opts.filename && typeof Object.defineProperty === 'function') {
            var filename = opts.filename;
            var basename = path.basename(filename, path.extname(filename));
            try {
              Object.defineProperty(returnedFn, 'name', {
                value: basename,
                writable: false,
                enumerable: false,
                configurable: true
              });
            } catch (e) {/* ignore */ }
          }
          return returnedFn;
        },

        generateSource: function () {
          var opts = this.opts;

          if (opts.rmWhitespace) {
            // Have to use two separate replace here as `^` and `$` operators don't
            // work well with `\r` and empty lines don't work well with the `m` flag.
            this.templateText =
              this.templateText.replace(/[\r\n]+/g, '\n').replace(/^\s+|\s+$/gm, '');
          }

          // Slurp spaces and tabs before <%_ and after _%>
          this.templateText =
            this.templateText.replace(/[ \t]*<%_/gm, '<%_').replace(/_%>[ \t]*/gm, '_%>');

          var self = this;
          var matches = this.parseTemplateText();
          var d = this.opts.delimiter;
          var o = this.opts.openDelimiter;
          var c = this.opts.closeDelimiter;

          if (matches && matches.length) {
            matches.forEach(function (line, index) {
              var closing;
              // If this is an opening tag, check for closing tags
              // FIXME: May end up with some false positives here
              // Better to store modes as k/v with openDelimiter + delimiter as key
              // Then this can simply check against the map
              if (line.indexOf(o + d) === 0        // If it is a tag
                && line.indexOf(o + d + d) !== 0) { // and is not escaped
                closing = matches[index + 2];
                if (!(closing == d + c || closing == '-' + d + c || closing == '_' + d + c)) {
                  throw new Error('Could not find matching close tag for "' + line + '".');
                }
              }
              self.scanLine(line);
            });
          }

        },

        parseTemplateText: function () {
          var str = this.templateText;
          var pat = this.regex;
          var result = pat.exec(str);
          var arr = [];
          var firstPos;

          while (result) {
            firstPos = result.index;

            if (firstPos !== 0) {
              arr.push(str.substring(0, firstPos));
              str = str.slice(firstPos);
            }

            arr.push(result[0]);
            str = str.slice(result[0].length);
            result = pat.exec(str);
          }

          if (str) {
            arr.push(str);
          }

          return arr;
        },

        _addOutput: function (line) {
          if (this.truncate) {
            // Only replace single leading linebreak in the line after
            // -%> tag -- this is the single, trailing linebreak
            // after the tag that the truncation mode replaces
            // Handle Win / Unix / old Mac linebreaks -- do the \r\n
            // combo first in the regex-or
            line = line.replace(/^(?:\r\n|\r|\n)/, '');
            this.truncate = false;
          }
          if (!line) {
            return line;
          }

          // Preserve literal slashes
          line = line.replace(/\\/g, '\\\\');

          // Convert linebreaks
          line = line.replace(/\n/g, '\\n');
          line = line.replace(/\r/g, '\\r');

          // Escape double-quotes
          // - this will be the delimiter during execution
          line = line.replace(/"/g, '\\"');
          this.source += '    ; __append("' + line + '")' + '\n';
        },

        scanLine: function (line) {
          var self = this;
          var d = this.opts.delimiter;
          var o = this.opts.openDelimiter;
          var c = this.opts.closeDelimiter;
          var newLineCount = 0;

          newLineCount = (line.split('\n').length - 1);

          switch (line) {
            case o + d:
            case o + d + '_':
              this.mode = Template.modes.EVAL;
              break;
            case o + d + '=':
              this.mode = Template.modes.ESCAPED;
              break;
            case o + d + '-':
              this.mode = Template.modes.RAW;
              break;
            case o + d + '#':
              this.mode = Template.modes.COMMENT;
              break;
            case o + d + d:
              this.mode = Template.modes.LITERAL;
              this.source += '    ; __append("' + line.replace(o + d + d, o + d) + '")' + '\n';
              break;
            case d + d + c:
              this.mode = Template.modes.LITERAL;
              this.source += '    ; __append("' + line.replace(d + d + c, d + c) + '")' + '\n';
              break;
            case d + c:
            case '-' + d + c:
            case '_' + d + c:
              if (this.mode == Template.modes.LITERAL) {
                this._addOutput(line);
              }

              this.mode = null;
              this.truncate = line.indexOf('-') === 0 || line.indexOf('_') === 0;
              break;
            default:
              // In script mode, depends on type of tag
              if (this.mode) {
                // If '//' is found without a line break, add a line break.
                switch (this.mode) {
                  case Template.modes.EVAL:
                  case Template.modes.ESCAPED:
                  case Template.modes.RAW:
                    if (line.lastIndexOf('//') > line.lastIndexOf('\n')) {
                      line += '\n';
                    }
                }
                switch (this.mode) {
                  // Just executing code
                  case Template.modes.EVAL:
                    this.source += '    ; ' + line + '\n';
                    break;
                  // Exec, esc, and output
                  case Template.modes.ESCAPED:
                    this.source += '    ; __append(escapeFn(' + stripSemi(line) + '))' + '\n';
                    break;
                  // Exec and output
                  case Template.modes.RAW:
                    this.source += '    ; __append(' + stripSemi(line) + ')' + '\n';
                    break;
                  case Template.modes.COMMENT:
                    // Do nothing
                    break;
                  // Literal <%% mode, append as raw output
                  case Template.modes.LITERAL:
                    this._addOutput(line);
                    break;
                }
              }
              // In string mode, just add the output
              else {
                this._addOutput(line);
              }
          }

          if (self.opts.compileDebug && newLineCount) {
            this.currentLine += newLineCount;
            this.source += '    ; __line = ' + this.currentLine + '\n';
          }
        }
      };

      /**
       * Escape characters reserved in XML.
       *
       * This is simply an export of {@link module:utils.escapeXML}.
       *
       * If `markup` is `undefined` or `null`, the empty string is returned.
       *
       * @param {String} markup Input string
       * @return {String} Escaped string
       * @public
       * @func
       * */
      exports.escapeXML = utils.escapeXML;

      /**
       * Express.js support.
       *
       * This is an alias for {@link module:ejs.renderFile}, in order to support
       * Express.js out-of-the-box.
       *
       * @func
       */

      exports.__express = exports.renderFile;

      /**
       * Version of EJS.
       *
       * @readonly
       * @type {String}
       * @public
       */

      exports.VERSION = _VERSION_STRING;

      /**
       * Name for detection of EJS.
       *
       * @readonly
       * @type {String}
       * @public
       */

      exports.name = _NAME;

      /* istanbul ignore if */
      if (typeof window != 'undefined') {
        window.ejs = exports;
      }

    }, { "../package.json": 6, "./utils": 2, "fs": 3, "path": 4 }], 2: [function (require, module, exports) {
      /*
       * EJS Embedded JavaScript templates
       * Copyright 2112 Matthew Eernisse (mde@fleegix.org)
       *
       * Licensed under the Apache License, Version 2.0 (the "License");
       * you may not use this file except in compliance with the License.
       * You may obtain a copy of the License at
       *
       *         http://www.apache.org/licenses/LICENSE-2.0
       *
       * Unless required by applicable law or agreed to in writing, software
       * distributed under the License is distributed on an "AS IS" BASIS,
       * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       * See the License for the specific language governing permissions and
       * limitations under the License.
       *
      */

      /**
       * Private utility functions
       * @module utils
       * @private
       */

      'use strict';

      var regExpChars = /[|\\{}()[\]^$+*?.]/g;

      /**
       * Escape characters reserved in regular expressions.
       *
       * If `string` is `undefined` or `null`, the empty string is returned.
       *
       * @param {String} string Input string
       * @return {String} Escaped string
       * @static
       * @private
       */
      exports.escapeRegExpChars = function (string) {
        // istanbul ignore if
        if (!string) {
          return '';
        }
        return String(string).replace(regExpChars, '\\$&');
      };

      var _ENCODE_HTML_RULES = {
        '&': '&amp;',
        '<': '&lt;',
        '>': '&gt;',
        '"': '&#34;',
        "'": '&#39;'
      };
      var _MATCH_HTML = /[&<>'"]/g;

      function encode_char(c) {
        return _ENCODE_HTML_RULES[c] || c;
      }

      /**
       * Stringified version of constants used by {@link module:utils.escapeXML}.
       *
       * It is used in the process of generating {@link ClientFunction}s.
       *
       * @readonly
       * @type {String}
       */

      var escapeFuncStr =
        'var _ENCODE_HTML_RULES = {\n'
        + '      "&": "&amp;"\n'
        + '    , "<": "&lt;"\n'
        + '    , ">": "&gt;"\n'
        + '    , \'"\': "&#34;"\n'
        + '    , "\'": "&#39;"\n'
        + '    }\n'
        + '  , _MATCH_HTML = /[&<>\'"]/g;\n'
        + 'function encode_char(c) {\n'
        + '  return _ENCODE_HTML_RULES[c] || c;\n'
        + '};\n';

      /**
       * Escape characters reserved in XML.
       *
       * If `markup` is `undefined` or `null`, the empty string is returned.
       *
       * @implements {EscapeCallback}
       * @param {String} markup Input string
       * @return {String} Escaped string
       * @static
       * @private
       */

      exports.escapeXML = function (markup) {
        return markup == undefined
          ? ''
          : String(markup)
            .replace(_MATCH_HTML, encode_char);
      };
      exports.escapeXML.toString = function () {
        return Function.prototype.toString.call(this) + ';\n' + escapeFuncStr;
      };

      /**
       * Naive copy of properties from one object to another.
       * Does not recurse into non-scalar properties
       * Does not check to see if the property has a value before copying
       *
       * @param  {Object} to   Destination object
       * @param  {Object} from Source object
       * @return {Object}      Destination object
       * @static
       * @private
       */
      exports.shallowCopy = function (to, from) {
        from = from || {};
        for (var p in from) {
          to[p] = from[p];
        }
        return to;
      };

      /**
       * Naive copy of a list of key names, from one object to another.
       * Only copies property if it is actually defined
       * Does not recurse into non-scalar properties
       *
       * @param  {Object} to   Destination object
       * @param  {Object} from Source object
       * @param  {Array} list List of properties to copy
       * @return {Object}      Destination object
       * @static
       * @private
       */
      exports.shallowCopyFromList = function (to, from, list) {
        for (var i = 0; i < list.length; i++) {
          var p = list[i];
          if (typeof from[p] != 'undefined') {
            to[p] = from[p];
          }
        }
        return to;
      };

      /**
       * Simple in-process cache implementation. Does not implement limits of any
       * sort.
       *
       * @implements {Cache}
       * @static
       * @private
       */
      exports.cache = {
        _data: {},
        set: function (key, val) {
          this._data[key] = val;
        },
        get: function (key) {
          return this._data[key];
        },
        remove: function (key) {
          delete this._data[key];
        },
        reset: function () {
          this._data = {};
        }
      };

      /**
       * Transforms hyphen case variable into camel case.
       *
       * @param {String} string Hyphen case string
       * @return {String} Camel case string
       * @static
       * @private
       */
      exports.hyphenToCamel = function (str) {
        return str.replace(/-[a-z]/g, function (match) { return match[1].toUpperCase(); });
      };

    }, {}], 3: [function (require, module, exports) {

    }, {}], 4: [function (require, module, exports) {
      (function (process) {
        // .dirname, .basename, and .extname methods are extracted from Node.js v8.11.1,
        // backported and transplited with Babel, with backwards-compat fixes

        // Copyright Joyent, Inc. and other Node contributors.
        //
        // Permission is hereby granted, free of charge, to any person obtaining a
        // copy of this software and associated documentation files (the
        // "Software"), to deal in the Software without restriction, including
        // without limitation the rights to use, copy, modify, merge, publish,
        // distribute, sublicense, and/or sell copies of the Software, and to permit
        // persons to whom the Software is furnished to do so, subject to the
        // following conditions:
        //
        // The above copyright notice and this permission notice shall be included
        // in all copies or substantial portions of the Software.
        //
        // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
        // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
        // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
        // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
        // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
        // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
        // USE OR OTHER DEALINGS IN THE SOFTWARE.

        // resolves . and .. elements in a path array with directory names there
        // must be no slashes, empty elements, or device names (c:\) in the array
        // (so also no leading and trailing slashes - it does not distinguish
        // relative and absolute paths)
        function normalizeArray(parts, allowAboveRoot) {
          // if the path tries to go above the root, `up` ends up > 0
          var up = 0;
          for (var i = parts.length - 1; i >= 0; i--) {
            var last = parts[i];
            if (last === '.') {
              parts.splice(i, 1);
            } else if (last === '..') {
              parts.splice(i, 1);
              up++;
            } else if (up) {
              parts.splice(i, 1);
              up--;
            }
          }

          // if the path is allowed to go above the root, restore leading ..s
          if (allowAboveRoot) {
            for (; up--; up) {
              parts.unshift('..');
            }
          }

          return parts;
        }

        // path.resolve([from ...], to)
        // posix version
        exports.resolve = function () {
          var resolvedPath = '',
            resolvedAbsolute = false;

          for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
            var path = (i >= 0) ? arguments[i] : process.cwd();

            // Skip empty and invalid entries
            if (typeof path !== 'string') {
              throw new TypeError('Arguments to path.resolve must be strings');
            } else if (!path) {
              continue;
            }

            resolvedPath = path + '/' + resolvedPath;
            resolvedAbsolute = path.charAt(0) === '/';
          }

          // At this point the path should be resolved to a full absolute path, but
          // handle relative paths to be safe (might happen when process.cwd() fails)

          // Normalize the path
          resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function (p) {
            return !!p;
          }), !resolvedAbsolute).join('/');

          return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
        };

        // path.normalize(path)
        // posix version
        exports.normalize = function (path) {
          var isAbsolute = exports.isAbsolute(path),
            trailingSlash = substr(path, -1) === '/';

          // Normalize the path
          path = normalizeArray(filter(path.split('/'), function (p) {
            return !!p;
          }), !isAbsolute).join('/');

          if (!path && !isAbsolute) {
            path = '.';
          }
          if (path && trailingSlash) {
            path += '/';
          }

          return (isAbsolute ? '/' : '') + path;
        };

        // posix version
        exports.isAbsolute = function (path) {
          return path.charAt(0) === '/';
        };

        // posix version
        exports.join = function () {
          var paths = Array.prototype.slice.call(arguments, 0);
          return exports.normalize(filter(paths, function (p, index) {
            if (typeof p !== 'string') {
              throw new TypeError('Arguments to path.join must be strings');
            }
            return p;
          }).join('/'));
        };


        // path.relative(from, to)
        // posix version
        exports.relative = function (from, to) {
          from = exports.resolve(from).substr(1);
          to = exports.resolve(to).substr(1);

          function trim(arr) {
            var start = 0;
            for (; start < arr.length; start++) {
              if (arr[start] !== '') break;
            }

            var end = arr.length - 1;
            for (; end >= 0; end--) {
              if (arr[end] !== '') break;
            }

            if (start > end) return [];
            return arr.slice(start, end - start + 1);
          }

          var fromParts = trim(from.split('/'));
          var toParts = trim(to.split('/'));

          var length = Math.min(fromParts.length, toParts.length);
          var samePartsLength = length;
          for (var i = 0; i < length; i++) {
            if (fromParts[i] !== toParts[i]) {
              samePartsLength = i;
              break;
            }
          }

          var outputParts = [];
          for (var i = samePartsLength; i < fromParts.length; i++) {
            outputParts.push('..');
          }

          outputParts = outputParts.concat(toParts.slice(samePartsLength));

          return outputParts.join('/');
        };

        exports.sep = '/';
        exports.delimiter = ':';

        exports.dirname = function (path) {
          if (typeof path !== 'string') path = path + '';
          if (path.length === 0) return '.';
          var code = path.charCodeAt(0);
          var hasRoot = code === 47 /*/*/;
          var end = -1;
          var matchedSlash = true;
          for (var i = path.length - 1; i >= 1; --i) {
            code = path.charCodeAt(i);
            if (code === 47 /*/*/) {
              if (!matchedSlash) {
                end = i;
                break;
              }
            } else {
              // We saw the first non-path separator
              matchedSlash = false;
            }
          }

          if (end === -1) return hasRoot ? '/' : '.';
          if (hasRoot && end === 1) {
            // return '//';
            // Backwards-compat fix:
            return '/';
          }
          return path.slice(0, end);
        };

        function basename(path) {
          if (typeof path !== 'string') path = path + '';

          var start = 0;
          var end = -1;
          var matchedSlash = true;
          var i;

          for (i = path.length - 1; i >= 0; --i) {
            if (path.charCodeAt(i) === 47 /*/*/) {
              // If we reached a path separator that was not part of a set of path
              // separators at the end of the string, stop now
              if (!matchedSlash) {
                start = i + 1;
                break;
              }
            } else if (end === -1) {
              // We saw the first non-path separator, mark this as the end of our
              // path component
              matchedSlash = false;
              end = i + 1;
            }
          }

          if (end === -1) return '';
          return path.slice(start, end);
        }

        // Uses a mixed approach for backwards-compatibility, as ext behavior changed
        // in new Node.js versions, so only basename() above is backported here
        exports.basename = function (path, ext) {
          var f = basename(path);
          if (ext && f.substr(-1 * ext.length) === ext) {
            f = f.substr(0, f.length - ext.length);
          }
          return f;
        };

        exports.extname = function (path) {
          if (typeof path !== 'string') path = path + '';
          var startDot = -1;
          var startPart = 0;
          var end = -1;
          var matchedSlash = true;
          // Track the state of characters (if any) we see before our first dot and
          // after any path separator we find
          var preDotState = 0;
          for (var i = path.length - 1; i >= 0; --i) {
            var code = path.charCodeAt(i);
            if (code === 47 /*/*/) {
              // If we reached a path separator that was not part of a set of path
              // separators at the end of the string, stop now
              if (!matchedSlash) {
                startPart = i + 1;
                break;
              }
              continue;
            }
            if (end === -1) {
              // We saw the first non-path separator, mark this as the end of our
              // extension
              matchedSlash = false;
              end = i + 1;
            }
            if (code === 46 /*.*/) {
              // If this is our first dot, mark it as the start of our extension
              if (startDot === -1)
                startDot = i;
              else if (preDotState !== 1)
                preDotState = 1;
            } else if (startDot !== -1) {
              // We saw a non-dot and non-path separator before our dot, so we should
              // have a good chance at having a non-empty extension
              preDotState = -1;
            }
          }

          if (startDot === -1 || end === -1 ||
            // We saw a non-dot character immediately before the dot
            preDotState === 0 ||
            // The (right-most) trimmed path component is exactly '..'
            preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {
            return '';
          }
          return path.slice(startDot, end);
        };

        function filter(xs, f) {
          if (xs.filter) return xs.filter(f);
          var res = [];
          for (var i = 0; i < xs.length; i++) {
            if (f(xs[i], i, xs)) res.push(xs[i]);
          }
          return res;
        }

        // String.prototype.substr - negative index don't work in IE8
        var substr = 'ab'.substr(-1) === 'b'
          ? function (str, start, len) { return str.substr(start, len) }
          : function (str, start, len) {
            if (start < 0) start = str.length + start;
            return str.substr(start, len);
          }
          ;

      }).call(this, require('_process'))
    }, { "_process": 5 }], 5: [function (require, module, exports) {
      // shim for using process in browser
      var process = module.exports = {};

      // cached from whatever global is present so that test runners that stub it
      // don't break things.  But we need to wrap it in a try catch in case it is
      // wrapped in strict mode code which doesn't define any globals.  It's inside a
      // function because try/catches deoptimize in certain engines.

      var cachedSetTimeout;
      var cachedClearTimeout;

      function defaultSetTimout() {
        throw new Error('setTimeout has not been defined');
      }
      function defaultClearTimeout() {
        throw new Error('clearTimeout has not been defined');
      }
      (function () {
        try {
          if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
          } else {
            cachedSetTimeout = defaultSetTimout;
          }
        } catch (e) {
          cachedSetTimeout = defaultSetTimout;
        }
        try {
          if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
          } else {
            cachedClearTimeout = defaultClearTimeout;
          }
        } catch (e) {
          cachedClearTimeout = defaultClearTimeout;
        }
      }())
      function runTimeout(fun) {
        if (cachedSetTimeout === setTimeout) {
          //normal enviroments in sane situations
          return setTimeout(fun, 0);
        }
        // if setTimeout wasn't available but was latter defined
        if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
          cachedSetTimeout = setTimeout;
          return setTimeout(fun, 0);
        }
        try {
          // when when somebody has screwed with setTimeout but no I.E. maddness
          return cachedSetTimeout(fun, 0);
        } catch (e) {
          try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
          } catch (e) {
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
          }
        }


      }
      function runClearTimeout(marker) {
        if (cachedClearTimeout === clearTimeout) {
          //normal enviroments in sane situations
          return clearTimeout(marker);
        }
        // if clearTimeout wasn't available but was latter defined
        if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
          cachedClearTimeout = clearTimeout;
          return clearTimeout(marker);
        }
        try {
          // when when somebody has screwed with setTimeout but no I.E. maddness
          return cachedClearTimeout(marker);
        } catch (e) {
          try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
          } catch (e) {
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
          }
        }



      }
      var queue = [];
      var draining = false;
      var currentQueue;
      var queueIndex = -1;

      function cleanUpNextTick() {
        if (!draining || !currentQueue) {
          return;
        }
        draining = false;
        if (currentQueue.length) {
          queue = currentQueue.concat(queue);
        } else {
          queueIndex = -1;
        }
        if (queue.length) {
          drainQueue();
        }
      }

      function drainQueue() {
        if (draining) {
          return;
        }
        var timeout = runTimeout(cleanUpNextTick);
        draining = true;

        var len = queue.length;
        while (len) {
          currentQueue = queue;
          queue = [];
          while (++queueIndex < len) {
            if (currentQueue) {
              currentQueue[queueIndex].run();
            }
          }
          queueIndex = -1;
          len = queue.length;
        }
        currentQueue = null;
        draining = false;
        runClearTimeout(timeout);
      }

      process.nextTick = function (fun) {
        var args = new Array(arguments.length - 1);
        if (arguments.length > 1) {
          for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
          }
        }
        queue.push(new Item(fun, args));
        if (queue.length === 1 && !draining) {
          runTimeout(drainQueue);
        }
      };

      // v8 likes predictible objects
      function Item(fun, array) {
        this.fun = fun;
        this.array = array;
      }
      Item.prototype.run = function () {
        this.fun.apply(null, this.array);
      };
      process.title = 'browser';
      process.browser = true;
      process.env = {};
      process.argv = [];
      process.version = ''; // empty string to avoid regexp issues
      process.versions = {};

      function noop() { }

      process.on = noop;
      process.addListener = noop;
      process.once = noop;
      process.off = noop;
      process.removeListener = noop;
      process.removeAllListeners = noop;
      process.emit = noop;
      process.prependListener = noop;
      process.prependOnceListener = noop;

      process.listeners = function (name) { return [] }

      process.binding = function (name) {
        throw new Error('process.binding is not supported');
      };

      process.cwd = function () { return '/' };
      process.chdir = function (dir) {
        throw new Error('process.chdir is not supported');
      };
      process.umask = function () { return 0; };

    }, {}], 6: [function (require, module, exports) {
      module.exports = {
        "name": "ejs",
        "description": "Embedded JavaScript templates",
        "keywords": [
          "template",
          "engine",
          "ejs"
        ],
        "version": "3.1.6",
        "author": "Matthew Eernisse <mde@fleegix.org> (http://fleegix.org)",
        "license": "Apache-2.0",
        "bin": {
          "ejs": "./bin/cli.js"
        },
        "main": "./lib/ejs.js",
        "jsdelivr": "ejs.min.js",
        "unpkg": "ejs.min.js",
        "repository": {
          "type": "git",
          "url": "git://github.com/mde/ejs.git"
        },
        "bugs": "https://github.com/mde/ejs/issues",
        "homepage": "https://github.com/mde/ejs",
        "dependencies": {
          "jake": "^10.6.1"
        },
        "devDependencies": {
          "browserify": "^16.5.1",
          "eslint": "^6.8.0",
          "git-directory-deploy": "^1.5.1",
          "jsdoc": "^3.6.4",
          "lru-cache": "^4.0.1",
          "mocha": "^7.1.1",
          "uglify-js": "^3.3.16"
        },
        "engines": {
          "node": ">=0.10.0"
        },
        "scripts": {
          "test": "mocha"
        }
      }

    }, {}]
  }, {}, [1])(1)
});


//Included:lib/005.d3-v7.4.4.part.js
// https://d3js.org v7.4.4 Copyright 2010-2022 Mike Bostock
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r=2*n[t],i=2*n[t+1],o=2*n[t+2];if((e[o]-e[r])*(e[i+1]-e[r+1])-(e[i]-e[r])*(e[o+1]-e[r+1])>1e-10)return!1}return!0}(t)){this.collinear=Int32Array.from({length:n.length/2},((t,n)=>n)).sort(((t,e)=>n[2*t]-n[2*e]||n[2*t+1]-n[2*e+1]));const t=this.collinear[0],e=this.collinear[this.collinear.length-1],r=[n[2*t],n[2*t+1],n[2*e],n[2*e+1]],i=1e-8*Math.hypot(r[3]-r[1],r[2]-r[0]);for(let t=0,e=n.length/2;t<e;++t){const e=mu(n[2*t],n[2*t+1],i);n[2*t]=e[0],n[2*t+1]=e[1]}this._delaunator=new iu(n)}else delete this.collinear;const e=this.halfedges=this._delaunator.halfedges,r=this.hull=this._delaunator.hull,i=this.triangles=this._delaunator.triangles,o=this.inedges.fill(-1),a=this._hullIndex.fill(-1);for(let t=0,n=e.length;t<n;++t){const n=i[t%3==2?t-2:t+1];-1!==e[t]&&-1!==o[n]||(o[n]=t)}for(let t=0,n=r.length;t<n;++t)a[r[t]]=t;r.length<=2&&r.length>0&&(this.triangles=new Int32Array(3).fill(-1),this.halfedges=new 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t?t:Xb(+t),u):r},u.y=function(t){return arguments.length?(i="function"==typeof t?t:Xb(+t),u):i},u.context=function(n){return arguments.length?(null==n?o=a=null:a=t(o=n),u):o},u}const Um=Jb(3);var Im={draw(t,n){const e=.59436*Jb(n+Kb(n/28,.75)),r=e/2,i=r*Um;t.moveTo(0,e),t.lineTo(0,-e),t.moveTo(-i,-r),t.lineTo(i,r),t.moveTo(-i,r),t.lineTo(i,-r)}},Bm={draw(t,n){const e=Jb(n/nm);t.moveTo(e,0),t.arc(0,0,e,0,rm)}},Ym={draw(t,n){const e=Jb(n/5)/2;t.moveTo(-3*e,-e),t.lineTo(-e,-e),t.lineTo(-e,-3*e),t.lineTo(e,-3*e),t.lineTo(e,-e),t.lineTo(3*e,-e),t.lineTo(3*e,e),t.lineTo(e,e),t.lineTo(e,3*e),t.lineTo(-e,3*e),t.lineTo(-e,e),t.lineTo(-3*e,e),t.closePath()}};const Lm=Jb(1/3),jm=2*Lm;var $m={draw(t,n){const e=Jb(n/jm),r=e*Lm;t.moveTo(0,-e),t.lineTo(r,0),t.lineTo(0,e),t.lineTo(-r,0),t.closePath()}},Hm={draw(t,n){const e=.62625*Jb(n);t.moveTo(0,-e),t.lineTo(e,0),t.lineTo(0,e),t.lineTo(-e,0),t.closePath()}},Xm={draw(t,n){const e=.87559*Jb(n-Kb(n/7,2));t.moveTo(-e,0),t.lineTo(e,0),t.moveTo(0,e),t.lineTo(0,-e)}},Gm={draw(t,n){const e=Jb(n),r=-e/2;t.rect(r,r,e,e)}},Vm={draw(t,n){const e=.4431*Jb(n);t.moveTo(e,e),t.lineTo(e,-e),t.lineTo(-e,-e),t.lineTo(-e,e),t.closePath()}};const Wm=Qb(nm/10)/Qb(7*nm/10),Zm=Qb(rm/10)*Wm,Km=-Wb(rm/10)*Wm;var Qm={draw(t,n){const e=Jb(.8908130915292852*n),r=Zm*e,i=Km*e;t.moveTo(0,-e),t.lineTo(r,i);for(let n=1;n<5;++n){const o=rm*n/5,a=Wb(o),u=Qb(o);t.lineTo(u*e,-a*e),t.lineTo(a*r-u*i,u*r+a*i)}t.closePath()}};const Jm=Jb(3);var tx={draw(t,n){const e=-Jb(n/(3*Jm));t.moveTo(0,2*e),t.lineTo(-Jm*e,-e),t.lineTo(Jm*e,-e),t.closePath()}};const nx=Jb(3);var ex={draw(t,n){const e=.6824*Jb(n),r=e/2,i=e*nx/2;t.moveTo(0,-e),t.lineTo(i,r),t.lineTo(-i,r),t.closePath()}};const rx=-.5,ix=Jb(3)/2,ox=1/Jb(12),ax=3*(ox/2+1);var ux={draw(t,n){const e=Jb(n/ax),r=e/2,i=e*ox,o=r,a=e*ox+e,u=-o,c=a;t.moveTo(r,i),t.lineTo(o,a),t.lineTo(u,c),t.lineTo(rx*r-ix*i,ix*r+rx*i),t.lineTo(rx*o-ix*a,ix*o+rx*a),t.lineTo(rx*u-ix*c,ix*u+rx*c),t.lineTo(rx*r+ix*i,rx*i-ix*r),t.lineTo(rx*o+ix*a,rx*a-ix*o),t.lineTo(rx*u+ix*c,rx*c-ix*u),t.closePath()}},cx={draw(t,n){const e=.6189*Jb(n-Kb(n/6,1.7));t.moveTo(-e,-e),t.lineTo(e,e),t.moveTo(-e,e),t.lineTo(e,-e)}};const fx=[Bm,Ym,$m,Gm,Qm,tx,ux],sx=[Bm,Xm,cx,ex,Im,Vm,Hm];function lx(){}function hx(t,n,e){t._context.bezierCurveTo((2*t._x0+t._x1)/3,(2*t._y0+t._y1)/3,(t._x0+2*t._x1)/3,(t._y0+2*t._y1)/3,(t._x0+4*t._x1+n)/6,(t._y0+4*t._y1+e)/6)}function dx(t){this._context=t}function px(t){this._context=t}function gx(t){this._context=t}function yx(t,n){this._basis=new dx(t),this._beta=n}dx.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){switch(this._point){case 3:hx(this,this._x1,this._y1);case 2:this._context.lineTo(this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,this._context.lineTo((5*this._x0+this._x1)/6,(5*this._y0+this._y1)/6);default:hx(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},px.prototype={areaStart:lx,areaEnd:lx,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._y0=this._y1=this._y2=this._y3=this._y4=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x2,this._y2),this._context.closePath();break;case 2:this._context.moveTo((this._x2+2*this._x3)/3,(this._y2+2*this._y3)/3),this._context.lineTo((this._x3+2*this._x2)/3,(this._y3+2*this._y2)/3),this._context.closePath();break;case 3:this.point(this._x2,this._y2),this.point(this._x3,this._y3),this.point(this._x4,this._y4)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x2=t,this._y2=n;break;case 1:this._point=2,this._x3=t,this._y3=n;break;case 2:this._point=3,this._x4=t,this._y4=n,this._context.moveTo((this._x0+4*this._x1+t)/6,(this._y0+4*this._y1+n)/6);break;default:hx(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},gx.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3;var e=(this._x0+4*this._x1+t)/6,r=(this._y0+4*this._y1+n)/6;this._line?this._context.lineTo(e,r):this._context.moveTo(e,r);break;case 3:this._point=4;default:hx(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},yx.prototype={lineStart:function(){this._x=[],this._y=[],this._basis.lineStart()},lineEnd:function(){var t=this._x,n=this._y,e=t.length-1;if(e>0)for(var r,i=t[0],o=n[0],a=t[e]-i,u=n[e]-o,c=-1;++c<=e;)r=c/e,this._basis.point(this._beta*t[c]+(1-this._beta)*(i+r*a),this._beta*n[c]+(1-this._beta)*(o+r*u));this._x=this._y=null,this._basis.lineEnd()},point:function(t,n){this._x.push(+t),this._y.push(+n)}};var vx=function t(n){function e(t){return 1===n?new dx(t):new yx(t,n)}return e.beta=function(n){return t(+n)},e}(.85);function _x(t,n,e){t._context.bezierCurveTo(t._x1+t._k*(t._x2-t._x0),t._y1+t._k*(t._y2-t._y0),t._x2+t._k*(t._x1-n),t._y2+t._k*(t._y1-e),t._x2,t._y2)}function bx(t,n){this._context=t,this._k=(1-n)/6}bx.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:_x(this,this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2,this._x1=t,this._y1=n;break;case 2:this._point=3;default:_x(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var mx=function t(n){function e(t){return new bx(t,n)}return e.tension=function(n){return t(+n)},e}(0);function 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//Included:lib/006.castelog.part.js


//Included:lib/007.socket.io.part.js


//Included:lib/008.socket.io-client-v4.4.1.part.js
/*!
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                var base = _superPropBase(target, property);

                if (!base) return;
                var desc = Object.getOwnPropertyDescriptor(base, property);

                if (desc.get) {
                    return desc.get.call(receiver);
                }

                return desc.value;
            };
        }

        return _get(target, property, receiver || target);
    }

    function _unsupportedIterableToArray(o, minLen) {
        if (!o) return;
        if (typeof o === "string") return _arrayLikeToArray(o, minLen);
        var n = Object.prototype.toString.call(o).slice(8, -1);
        if (n === "Object" && o.constructor) n = o.constructor.name;
        if (n === "Map" || n === "Set") return Array.from(o);
        if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
    }

    function _arrayLikeToArray(arr, len) {
        if (len == null || len > arr.length) len = arr.length;

        for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

        return arr2;
    }

    function _createForOfIteratorHelper(o, allowArrayLike) {
        var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];

        if (!it) {
            if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
                if (it) o = it;
                var i = 0;

                var F = function () { };

                return {
                    s: F,
                    n: function () {
                        if (i >= o.length) return {
                            done: true
                        };
                        return {
                            done: false,
                            value: o[i++]
                        };
                    },
                    e: function (e) {
                        throw e;
                    },
                    f: F
                };
            }

            throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
        }

        var normalCompletion = true,
            didErr = false,
            err;
        return {
            s: function () {
                it = it.call(o);
            },
            n: function () {
                var step = it.next();
                normalCompletion = step.done;
                return step;
            },
            e: function (e) {
                didErr = true;
                err = e;
            },
            f: function () {
                try {
                    if (!normalCompletion && it.return != null) it.return();
                } finally {
                    if (didErr) throw err;
                }
            }
        };
    }

    /**
     * Parses an URI
     *
     * @author Steven Levithan <stevenlevithan.com> (MIT license)
     * @api private
     */
    var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
    var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'];

    var parseuri = function parseuri(str) {
        var src = str,
            b = str.indexOf('['),
            e = str.indexOf(']');

        if (b != -1 && e != -1) {
            str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
        }

        var m = re.exec(str || ''),
            uri = {},
            i = 14;

        while (i--) {
            uri[parts[i]] = m[i] || '';
        }

        if (b != -1 && e != -1) {
            uri.source = src;
            uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
            uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
            uri.ipv6uri = true;
        }

        uri.pathNames = pathNames(uri, uri['path']);
        uri.queryKey = queryKey(uri, uri['query']);
        return uri;
    };

    function pathNames(obj, path) {
        var regx = /\/{2,9}/g,
            names = path.replace(regx, "/").split("/");

        if (path.substr(0, 1) == '/' || path.length === 0) {
            names.splice(0, 1);
        }

        if (path.substr(path.length - 1, 1) == '/') {
            names.splice(names.length - 1, 1);
        }

        return names;
    }

    function queryKey(uri, query) {
        var data = {};
        query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {
            if ($1) {
                data[$1] = $2;
            }
        });
        return data;
    }

    /**
     * URL parser.
     *
     * @param uri - url
     * @param path - the request path of the connection
     * @param loc - An object meant to mimic window.location.
     *        Defaults to window.location.
     * @public
     */

    function url(uri) {
        var path = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "";
        var loc = arguments.length > 2 ? arguments[2] : undefined;
        var obj = uri; // default to window.location

        loc = loc || typeof location !== "undefined" && location;
        if (null == uri) uri = loc.protocol + "//" + loc.host; // relative path support

        if (typeof uri === "string") {
            if ("/" === uri.charAt(0)) {
                if ("/" === uri.charAt(1)) {
                    uri = loc.protocol + uri;
                } else {
                    uri = loc.host + uri;
                }
            }

            if (!/^(https?|wss?):\/\//.test(uri)) {
                if ("undefined" !== typeof loc) {
                    uri = loc.protocol + "//" + uri;
                } else {
                    uri = "https://" + uri;
                }
            } // parse


            obj = parseuri(uri);
        } // make sure we treat `localhost:80` and `localhost` equally


        if (!obj.port) {
            if (/^(http|ws)$/.test(obj.protocol)) {
                obj.port = "80";
            } else if (/^(http|ws)s$/.test(obj.protocol)) {
                obj.port = "443";
            }
        }

        obj.path = obj.path || "/";
        var ipv6 = obj.host.indexOf(":") !== -1;
        var host = ipv6 ? "[" + obj.host + "]" : obj.host; // define unique id

        obj.id = obj.protocol + "://" + host + ":" + obj.port + path; // define href

        obj.href = obj.protocol + "://" + host + (loc && loc.port === obj.port ? "" : ":" + obj.port);
        return obj;
    }

    var hasCors = { exports: {} };

    /**
     * Module exports.
     *
     * Logic borrowed from Modernizr:
     *
     *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
     */

    try {
        hasCors.exports = typeof XMLHttpRequest !== 'undefined' && 'withCredentials' in new XMLHttpRequest();
    } catch (err) {
        // if XMLHttp support is disabled in IE then it will throw
        // when trying to create
        hasCors.exports = false;
    }

    var hasCORS = hasCors.exports;

    var globalThis = (function () {
        if (typeof self !== "undefined") {
            return self;
        } else if (typeof window !== "undefined") {
            return window;
        } else {
            return Function("return this")();
        }
    })();

    // browser shim for xmlhttprequest module
    function XMLHttpRequest$1(opts) {
        var xdomain = opts.xdomain; // XMLHttpRequest can be disabled on IE

        try {
            if ("undefined" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
                return new XMLHttpRequest();
            }
        } catch (e) { }

        if (!xdomain) {
            try {
                return new globalThis[["Active"].concat("Object").join("X")]("Microsoft.XMLHTTP");
            } catch (e) { }
        }
    }

    function pick(obj) {
        for (var _len = arguments.length, attr = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
            attr[_key - 1] = arguments[_key];
        }

        return attr.reduce(function (acc, k) {
            if (obj.hasOwnProperty(k)) {
                acc[k] = obj[k];
            }

            return acc;
        }, {});
    } // Keep a reference to the real timeout functions so they can be used when overridden

    var NATIVE_SET_TIMEOUT = setTimeout;
    var NATIVE_CLEAR_TIMEOUT = clearTimeout;
    function installTimerFunctions(obj, opts) {
        if (opts.useNativeTimers) {
            obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis);
            obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis);
        } else {
            obj.setTimeoutFn = setTimeout.bind(globalThis);
            obj.clearTimeoutFn = clearTimeout.bind(globalThis);
        }
    }

    /**
     * Expose `Emitter`.
     */

    var Emitter_1 = Emitter;
    /**
     * Initialize a new `Emitter`.
     *
     * @api public
     */

    function Emitter(obj) {
        if (obj) return mixin(obj);
    }
    /**
     * Mixin the emitter properties.
     *
     * @param {Object} obj
     * @return {Object}
     * @api private
     */


    function mixin(obj) {
        for (var key in Emitter.prototype) {
            obj[key] = Emitter.prototype[key];
        }

        return obj;
    }
    /**
     * Listen on the given `event` with `fn`.
     *
     * @param {String} event
     * @param {Function} fn
     * @return {Emitter}
     * @api public
     */


    Emitter.prototype.on = Emitter.prototype.addEventListener = function (event, fn) {
        this._callbacks = this._callbacks || {};
        (this._callbacks['$' + event] = this._callbacks['$' + event] || []).push(fn);
        return this;
    };
    /**
     * Adds an `event` listener that will be invoked a single
     * time then automatically removed.
     *
     * @param {String} event
     * @param {Function} fn
     * @return {Emitter}
     * @api public
     */


    Emitter.prototype.once = function (event, fn) {
        function on() {
            this.off(event, on);
            fn.apply(this, arguments);
        }

        on.fn = fn;
        this.on(event, on);
        return this;
    };
    /**
     * Remove the given callback for `event` or all
     * registered callbacks.
     *
     * @param {String} event
     * @param {Function} fn
     * @return {Emitter}
     * @api public
     */


    Emitter.prototype.off = Emitter.prototype.removeListener = Emitter.prototype.removeAllListeners = Emitter.prototype.removeEventListener = function (event, fn) {
        this._callbacks = this._callbacks || {}; // all

        if (0 == arguments.length) {
            this._callbacks = {};
            return this;
        } // specific event


        var callbacks = this._callbacks['$' + event];
        if (!callbacks) return this; // remove all handlers

        if (1 == arguments.length) {
            delete this._callbacks['$' + event];
            return this;
        } // remove specific handler


        var cb;

        for (var i = 0; i < callbacks.length; i++) {
            cb = callbacks[i];

            if (cb === fn || cb.fn === fn) {
                callbacks.splice(i, 1);
                break;
            }
        } // Remove event specific arrays for event types that no
        // one is subscribed for to avoid memory leak.


        if (callbacks.length === 0) {
            delete this._callbacks['$' + event];
        }

        return this;
    };
    /**
     * Emit `event` with the given args.
     *
     * @param {String} event
     * @param {Mixed} ...
     * @return {Emitter}
     */


    Emitter.prototype.emit = function (event) {
        this._callbacks = this._callbacks || {};
        var args = new Array(arguments.length - 1),
            callbacks = this._callbacks['$' + event];

        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }

        if (callbacks) {
            callbacks = callbacks.slice(0);

            for (var i = 0, len = callbacks.length; i < len; ++i) {
                callbacks[i].apply(this, args);
            }
        }

        return this;
    }; // alias used for reserved events (protected method)


    Emitter.prototype.emitReserved = Emitter.prototype.emit;
    /**
     * Return array of callbacks for `event`.
     *
     * @param {String} event
     * @return {Array}
     * @api public
     */

    Emitter.prototype.listeners = function (event) {
        this._callbacks = this._callbacks || {};
        return this._callbacks['$' + event] || [];
    };
    /**
     * Check if this emitter has `event` handlers.
     *
     * @param {String} event
     * @return {Boolean}
     * @api public
     */


    Emitter.prototype.hasListeners = function (event) {
        return !!this.listeners(event).length;
    };

    var PACKET_TYPES = Object.create(null); // no Map = no polyfill

    PACKET_TYPES["open"] = "0";
    PACKET_TYPES["close"] = "1";
    PACKET_TYPES["ping"] = "2";
    PACKET_TYPES["pong"] = "3";
    PACKET_TYPES["message"] = "4";
    PACKET_TYPES["upgrade"] = "5";
    PACKET_TYPES["noop"] = "6";
    var PACKET_TYPES_REVERSE = Object.create(null);
    Object.keys(PACKET_TYPES).forEach(function (key) {
        PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;
    });
    var ERROR_PACKET = {
        type: "error",
        data: "parser error"
    };

    var withNativeBlob$1 = typeof Blob === "function" || typeof Blob !== "undefined" && Object.prototype.toString.call(Blob) === "[object BlobConstructor]";
    var withNativeArrayBuffer$2 = typeof ArrayBuffer === "function"; // ArrayBuffer.isView method is not defined in IE10

    var isView$1 = function isView(obj) {
        return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj && obj.buffer instanceof ArrayBuffer;
    };

    var encodePacket = function encodePacket(_ref, supportsBinary, callback) {
        var type = _ref.type,
            data = _ref.data;

        if (withNativeBlob$1 && data instanceof Blob) {
            if (supportsBinary) {
                return callback(data);
            } else {
                return encodeBlobAsBase64(data, callback);
            }
        } else if (withNativeArrayBuffer$2 && (data instanceof ArrayBuffer || isView$1(data))) {
            if (supportsBinary) {
                return callback(data);
            } else {
                return encodeBlobAsBase64(new Blob([data]), callback);
            }
        } // plain string


        return callback(PACKET_TYPES[type] + (data || ""));
    };

    var encodeBlobAsBase64 = function encodeBlobAsBase64(data, callback) {
        var fileReader = new FileReader();

        fileReader.onload = function () {
            var content = fileReader.result.split(",")[1];
            callback("b" + content);
        };

        return fileReader.readAsDataURL(data);
    };

    /*
     * base64-arraybuffer 1.0.1 <https://github.com/niklasvh/base64-arraybuffer>
     * Copyright (c) 2021 Niklas von Hertzen <https://hertzen.com>
     * Released under MIT License
     */
    var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; // Use a lookup table to find the index.

    var lookup$1 = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);

    for (var i$1 = 0; i$1 < chars.length; i$1++) {
        lookup$1[chars.charCodeAt(i$1)] = i$1;
    }

    var decode$1 = function decode(base64) {
        var bufferLength = base64.length * 0.75,
            len = base64.length,
            i,
            p = 0,
            encoded1,
            encoded2,
            encoded3,
            encoded4;

        if (base64[base64.length - 1] === '=') {
            bufferLength--;

            if (base64[base64.length - 2] === '=') {
                bufferLength--;
            }
        }

        var arraybuffer = new ArrayBuffer(bufferLength),
            bytes = new Uint8Array(arraybuffer);

        for (i = 0; i < len; i += 4) {
            encoded1 = lookup$1[base64.charCodeAt(i)];
            encoded2 = lookup$1[base64.charCodeAt(i + 1)];
            encoded3 = lookup$1[base64.charCodeAt(i + 2)];
            encoded4 = lookup$1[base64.charCodeAt(i + 3)];
            bytes[p++] = encoded1 << 2 | encoded2 >> 4;
            bytes[p++] = (encoded2 & 15) << 4 | encoded3 >> 2;
            bytes[p++] = (encoded3 & 3) << 6 | encoded4 & 63;
        }

        return arraybuffer;
    };

    var withNativeArrayBuffer$1 = typeof ArrayBuffer === "function";

    var decodePacket = function decodePacket(encodedPacket, binaryType) {
        if (typeof encodedPacket !== "string") {
            return {
                type: "message",
                data: mapBinary(encodedPacket, binaryType)
            };
        }

        var type = encodedPacket.charAt(0);

        if (type === "b") {
            return {
                type: "message",
                data: decodeBase64Packet(encodedPacket.substring(1), binaryType)
            };
        }

        var packetType = PACKET_TYPES_REVERSE[type];

        if (!packetType) {
            return ERROR_PACKET;
        }

        return encodedPacket.length > 1 ? {
            type: PACKET_TYPES_REVERSE[type],
            data: encodedPacket.substring(1)
        } : {
            type: PACKET_TYPES_REVERSE[type]
        };
    };

    var decodeBase64Packet = function decodeBase64Packet(data, binaryType) {
        if (withNativeArrayBuffer$1) {
            var decoded = decode$1(data);
            return mapBinary(decoded, binaryType);
        } else {
            return {
                base64: true,
                data: data
            }; // fallback for old browsers
        }
    };

    var mapBinary = function mapBinary(data, binaryType) {
        switch (binaryType) {
            case "blob":
                return data instanceof ArrayBuffer ? new Blob([data]) : data;

            case "arraybuffer":
            default:
                return data;
            // assuming the data is already an ArrayBuffer
        }
    };

    var SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text

    var encodePayload = function encodePayload(packets, callback) {
        // some packets may be added to the array while encoding, so the initial length must be saved
        var length = packets.length;
        var encodedPackets = new Array(length);
        var count = 0;
        packets.forEach(function (packet, i) {
            // force base64 encoding for binary packets
            encodePacket(packet, false, function (encodedPacket) {
                encodedPackets[i] = encodedPacket;

                if (++count === length) {
                    callback(encodedPackets.join(SEPARATOR));
                }
            });
        });
    };

    var decodePayload = function decodePayload(encodedPayload, binaryType) {
        var encodedPackets = encodedPayload.split(SEPARATOR);
        var packets = [];

        for (var i = 0; i < encodedPackets.length; i++) {
            var decodedPacket = decodePacket(encodedPackets[i], binaryType);
            packets.push(decodedPacket);

            if (decodedPacket.type === "error") {
                break;
            }
        }

        return packets;
    };

    var protocol$1 = 4;

    var Transport = /*#__PURE__*/function (_Emitter) {
        _inherits(Transport, _Emitter);

        var _super = _createSuper(Transport);

        /**
         * Transport abstract constructor.
         *
         * @param {Object} options.
         * @api private
         */
        function Transport(opts) {
            var _this;

            _classCallCheck(this, Transport);

            _this = _super.call(this);
            _this.writable = false;
            installTimerFunctions(_assertThisInitialized(_this), opts);
            _this.opts = opts;
            _this.query = opts.query;
            _this.readyState = "";
            _this.socket = opts.socket;
            return _this;
        }
        /**
         * Emits an error.
         *
         * @param {String} str
         * @return {Transport} for chaining
         * @api protected
         */


        _createClass(Transport, [{
            key: "onError",
            value: function onError(msg, desc) {
                var err = new Error(msg); // @ts-ignore

                err.type = "TransportError"; // @ts-ignore

                err.description = desc;

                _get(_getPrototypeOf(Transport.prototype), "emit", this).call(this, "error", err);

                return this;
            }
            /**
             * Opens the transport.
             *
             * @api public
             */

        }, {
            key: "open",
            value: function open() {
                if ("closed" === this.readyState || "" === this.readyState) {
                    this.readyState = "opening";
                    this.doOpen();
                }

                return this;
            }
            /**
             * Closes the transport.
             *
             * @api public
             */

        }, {
            key: "close",
            value: function close() {
                if ("opening" === this.readyState || "open" === this.readyState) {
                    this.doClose();
                    this.onClose();
                }

                return this;
            }
            /**
             * Sends multiple packets.
             *
             * @param {Array} packets
             * @api public
             */

        }, {
            key: "send",
            value: function send(packets) {
                if ("open" === this.readyState) {
                    this.write(packets);
                }
            }
            /**
             * Called upon open
             *
             * @api protected
             */

        }, {
            key: "onOpen",
            value: function onOpen() {
                this.readyState = "open";
                this.writable = true;

                _get(_getPrototypeOf(Transport.prototype), "emit", this).call(this, "open");
            }
            /**
             * Called with data.
             *
             * @param {String} data
             * @api protected
             */

        }, {
            key: "onData",
            value: function onData(data) {
                var packet = decodePacket(data, this.socket.binaryType);
                this.onPacket(packet);
            }
            /**
             * Called with a decoded packet.
             *
             * @api protected
             */

        }, {
            key: "onPacket",
            value: function onPacket(packet) {
                _get(_getPrototypeOf(Transport.prototype), "emit", this).call(this, "packet", packet);
            }
            /**
             * Called upon close.
             *
             * @api protected
             */

        }, {
            key: "onClose",
            value: function onClose() {
                this.readyState = "closed";

                _get(_getPrototypeOf(Transport.prototype), "emit", this).call(this, "close");
            }
        }]);

        return Transport;
    }(Emitter_1);

    var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''),
        length = 64,
        map = {},
        seed = 0,
        i = 0,
        prev;
    /**
     * Return a string representing the specified number.
     *
     * @param {Number} num The number to convert.
     * @returns {String} The string representation of the number.
     * @api public
     */

    function encode(num) {
        var encoded = '';

        do {
            encoded = alphabet[num % length] + encoded;
            num = Math.floor(num / length);
        } while (num > 0);

        return encoded;
    }
    /**
     * Return the integer value specified by the given string.
     *
     * @param {String} str The string to convert.
     * @returns {Number} The integer value represented by the string.
     * @api public
     */


    function decode(str) {
        var decoded = 0;

        for (i = 0; i < str.length; i++) {
            decoded = decoded * length + map[str.charAt(i)];
        }

        return decoded;
    }
    /**
     * Yeast: A tiny growing id generator.
     *
     * @returns {String} A unique id.
     * @api public
     */


    function yeast() {
        var now = encode(+new Date());
        if (now !== prev) return seed = 0, prev = now;
        return now + '.' + encode(seed++);
    } //
    // Map each character to its index.
    //


    for (; i < length; i++) {
        map[alphabet[i]] = i;
    } //
    // Expose the `yeast`, `encode` and `decode` functions.
    //


    yeast.encode = encode;
    yeast.decode = decode;
    var yeast_1 = yeast;

    var parseqs = {};

    /**
     * Compiles a querystring
     * Returns string representation of the object
     *
     * @param {Object}
     * @api private
     */

    parseqs.encode = function (obj) {
        var str = '';

        for (var i in obj) {
            if (obj.hasOwnProperty(i)) {
                if (str.length) str += '&';
                str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
            }
        }

        return str;
    };
    /**
     * Parses a simple querystring into an object
     *
     * @param {String} qs
     * @api private
     */


    parseqs.decode = function (qs) {
        var qry = {};
        var pairs = qs.split('&');

        for (var i = 0, l = pairs.length; i < l; i++) {
            var pair = pairs[i].split('=');
            qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
        }

        return qry;
    };

    var Polling = /*#__PURE__*/function (_Transport) {
        _inherits(Polling, _Transport);

        var _super = _createSuper(Polling);

        function Polling() {
            var _this;

            _classCallCheck(this, Polling);

            _this = _super.apply(this, arguments);
            _this.polling = false;
            return _this;
        }
        /**
         * Transport name.
         */


        _createClass(Polling, [{
            key: "name",
            get: function get() {
                return "polling";
            }
            /**
             * Opens the socket (triggers polling). We write a PING message to determine
             * when the transport is open.
             *
             * @api private
             */

        }, {
            key: "doOpen",
            value: function doOpen() {
                this.poll();
            }
            /**
             * Pauses polling.
             *
             * @param {Function} callback upon buffers are flushed and transport is paused
             * @api private
             */

        }, {
            key: "pause",
            value: function pause(onPause) {
                var _this2 = this;

                this.readyState = "pausing";

                var pause = function pause() {
                    _this2.readyState = "paused";
                    onPause();
                };

                if (this.polling || !this.writable) {
                    var total = 0;

                    if (this.polling) {
                        total++;
                        this.once("pollComplete", function () {
                            --total || pause();
                        });
                    }

                    if (!this.writable) {
                        total++;
                        this.once("drain", function () {
                            --total || pause();
                        });
                    }
                } else {
                    pause();
                }
            }
            /**
             * Starts polling cycle.
             *
             * @api public
             */

        }, {
            key: "poll",
            value: function poll() {
                this.polling = true;
                this.doPoll();
                this.emit("poll");
            }
            /**
             * Overloads onData to detect payloads.
             *
             * @api private
             */

        }, {
            key: "onData",
            value: function onData(data) {
                var _this3 = this;

                var callback = function callback(packet) {
                    // if its the first message we consider the transport open
                    if ("opening" === _this3.readyState && packet.type === "open") {
                        _this3.onOpen();
                    } // if its a close packet, we close the ongoing requests


                    if ("close" === packet.type) {
                        _this3.onClose();

                        return false;
                    } // otherwise bypass onData and handle the message


                    _this3.onPacket(packet);
                }; // decode payload


                decodePayload(data, this.socket.binaryType).forEach(callback); // if an event did not trigger closing

                if ("closed" !== this.readyState) {
                    // if we got data we're not polling
                    this.polling = false;
                    this.emit("pollComplete");

                    if ("open" === this.readyState) {
                        this.poll();
                    }
                }
            }
            /**
             * For polling, send a close packet.
             *
             * @api private
             */

        }, {
            key: "doClose",
            value: function doClose() {
                var _this4 = this;

                var close = function close() {
                    _this4.write([{
                        type: "close"
                    }]);
                };

                if ("open" === this.readyState) {
                    close();
                } else {
                    // in case we're trying to close while
                    // handshaking is in progress (GH-164)
                    this.once("open", close);
                }
            }
            /**
             * Writes a packets payload.
             *
             * @param {Array} data packets
             * @param {Function} drain callback
             * @api private
             */

        }, {
            key: "write",
            value: function write(packets) {
                var _this5 = this;

                this.writable = false;
                encodePayload(packets, function (data) {
                    _this5.doWrite(data, function () {
                        _this5.writable = true;

                        _this5.emit("drain");
                    });
                });
            }
            /**
             * Generates uri for connection.
             *
             * @api private
             */

        }, {
            key: "uri",
            value: function uri() {
                var query = this.query || {};
                var schema = this.opts.secure ? "https" : "http";
                var port = ""; // cache busting is forced

                if (false !== this.opts.timestampRequests) {
                    query[this.opts.timestampParam] = yeast_1();
                }

                if (!this.supportsBinary && !query.sid) {
                    query.b64 = 1;
                } // avoid port if default for schema


                if (this.opts.port && ("https" === schema && Number(this.opts.port) !== 443 || "http" === schema && Number(this.opts.port) !== 80)) {
                    port = ":" + this.opts.port;
                }

                var encodedQuery = parseqs.encode(query);
                var ipv6 = this.opts.hostname.indexOf(":") !== -1;
                return schema + "://" + (ipv6 ? "[" + this.opts.hostname + "]" : this.opts.hostname) + port + this.opts.path + (encodedQuery.length ? "?" + encodedQuery : "");
            }
        }]);

        return Polling;
    }(Transport);

    /**
     * Empty function
     */

    function empty() { }

    var hasXHR2 = function () {
        var xhr = new XMLHttpRequest$1({
            xdomain: false
        });
        return null != xhr.responseType;
    }();

    var XHR = /*#__PURE__*/function (_Polling) {
        _inherits(XHR, _Polling);

        var _super = _createSuper(XHR);

        /**
         * XHR Polling constructor.
         *
         * @param {Object} opts
         * @api public
         */
        function XHR(opts) {
            var _this;

            _classCallCheck(this, XHR);

            _this = _super.call(this, opts);

            if (typeof location !== "undefined") {
                var isSSL = "https:" === location.protocol;
                var port = location.port; // some user agents have empty `location.port`

                if (!port) {
                    port = isSSL ? "443" : "80";
                }

                _this.xd = typeof location !== "undefined" && opts.hostname !== location.hostname || port !== opts.port;
                _this.xs = opts.secure !== isSSL;
            }
            /**
             * XHR supports binary
             */


            var forceBase64 = opts && opts.forceBase64;
            _this.supportsBinary = hasXHR2 && !forceBase64;
            return _this;
        }
        /**
         * Creates a request.
         *
         * @param {String} method
         * @api private
         */


        _createClass(XHR, [{
            key: "request",
            value: function request() {
                var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

                _extends(opts, {
                    xd: this.xd,
                    xs: this.xs
                }, this.opts);

                return new Request(this.uri(), opts);
            }
            /**
             * Sends data.
             *
             * @param {String} data to send.
             * @param {Function} called upon flush.
             * @api private
             */

        }, {
            key: "doWrite",
            value: function doWrite(data, fn) {
                var _this2 = this;

                var req = this.request({
                    method: "POST",
                    data: data
                });
                req.on("success", fn);
                req.on("error", function (err) {
                    _this2.onError("xhr post error", err);
                });
            }
            /**
             * Starts a poll cycle.
             *
             * @api private
             */

        }, {
            key: "doPoll",
            value: function doPoll() {
                var _this3 = this;

                var req = this.request();
                req.on("data", this.onData.bind(this));
                req.on("error", function (err) {
                    _this3.onError("xhr poll error", err);
                });
                this.pollXhr = req;
            }
        }]);

        return XHR;
    }(Polling);
    var Request = /*#__PURE__*/function (_Emitter) {
        _inherits(Request, _Emitter);

        var _super2 = _createSuper(Request);

        /**
         * Request constructor
         *
         * @param {Object} options
         * @api public
         */
        function Request(uri, opts) {
            var _this4;

            _classCallCheck(this, Request);

            _this4 = _super2.call(this);
            installTimerFunctions(_assertThisInitialized(_this4), opts);
            _this4.opts = opts;
            _this4.method = opts.method || "GET";
            _this4.uri = uri;
            _this4.async = false !== opts.async;
            _this4.data = undefined !== opts.data ? opts.data : null;

            _this4.create();

            return _this4;
        }
        /**
         * Creates the XHR object and sends the request.
         *
         * @api private
         */


        _createClass(Request, [{
            key: "create",
            value: function create() {
                var _this5 = this;

                var opts = pick(this.opts, "agent", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "autoUnref");
                opts.xdomain = !!this.opts.xd;
                opts.xscheme = !!this.opts.xs;
                var xhr = this.xhr = new XMLHttpRequest$1(opts);

                try {
                    xhr.open(this.method, this.uri, this.async);

                    try {
                        if (this.opts.extraHeaders) {
                            xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);

                            for (var i in this.opts.extraHeaders) {
                                if (this.opts.extraHeaders.hasOwnProperty(i)) {
                                    xhr.setRequestHeader(i, this.opts.extraHeaders[i]);
                                }
                            }
                        }
                    } catch (e) { }

                    if ("POST" === this.method) {
                        try {
                            xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
                        } catch (e) { }
                    }

                    try {
                        xhr.setRequestHeader("Accept", "*/*");
                    } catch (e) { } // ie6 check


                    if ("withCredentials" in xhr) {
                        xhr.withCredentials = this.opts.withCredentials;
                    }

                    if (this.opts.requestTimeout) {
                        xhr.timeout = this.opts.requestTimeout;
                    }

                    xhr.onreadystatechange = function () {
                        if (4 !== xhr.readyState) return;

                        if (200 === xhr.status || 1223 === xhr.status) {
                            _this5.onLoad();
                        } else {
                            // make sure the `error` event handler that's user-set
                            // does not throw in the same tick and gets caught here
                            _this5.setTimeoutFn(function () {
                                _this5.onError(typeof xhr.status === "number" ? xhr.status : 0);
                            }, 0);
                        }
                    };

                    xhr.send(this.data);
                } catch (e) {
                    // Need to defer since .create() is called directly from the constructor
                    // and thus the 'error' event can only be only bound *after* this exception
                    // occurs.  Therefore, also, we cannot throw here at all.
                    this.setTimeoutFn(function () {
                        _this5.onError(e);
                    }, 0);
                    return;
                }

                if (typeof document !== "undefined") {
                    this.index = Request.requestsCount++;
                    Request.requests[this.index] = this;
                }
            }
            /**
             * Called upon successful response.
             *
             * @api private
             */

        }, {
            key: "onSuccess",
            value: function onSuccess() {
                this.emit("success");
                this.cleanup();
            }
            /**
             * Called if we have data.
             *
             * @api private
             */

        }, {
            key: "onData",
            value: function onData(data) {
                this.emit("data", data);
                this.onSuccess();
            }
            /**
             * Called upon error.
             *
             * @api private
             */

        }, {
            key: "onError",
            value: function onError(err) {
                this.emit("error", err);
                this.cleanup(true);
            }
            /**
             * Cleans up house.
             *
             * @api private
             */

        }, {
            key: "cleanup",
            value: function cleanup(fromError) {
                if ("undefined" === typeof this.xhr || null === this.xhr) {
                    return;
                }

                this.xhr.onreadystatechange = empty;

                if (fromError) {
                    try {
                        this.xhr.abort();
                    } catch (e) { }
                }

                if (typeof document !== "undefined") {
                    delete Request.requests[this.index];
                }

                this.xhr = null;
            }
            /**
             * Called upon load.
             *
             * @api private
             */

        }, {
            key: "onLoad",
            value: function onLoad() {
                var data = this.xhr.responseText;

                if (data !== null) {
                    this.onData(data);
                }
            }
            /**
             * Aborts the request.
             *
             * @api public
             */

        }, {
            key: "abort",
            value: function abort() {
                this.cleanup();
            }
        }]);

        return Request;
    }(Emitter_1);
    Request.requestsCount = 0;
    Request.requests = {};
    /**
     * Aborts pending requests when unloading the window. This is needed to prevent
     * memory leaks (e.g. when using IE) and to ensure that no spurious error is
     * emitted.
     */

    if (typeof document !== "undefined") {
        // @ts-ignore
        if (typeof attachEvent === "function") {
            // @ts-ignore
            attachEvent("onunload", unloadHandler);
        } else if (typeof addEventListener === "function") {
            var terminationEvent = "onpagehide" in globalThis ? "pagehide" : "unload";
            addEventListener(terminationEvent, unloadHandler, false);
        }
    }

    function unloadHandler() {
        for (var i in Request.requests) {
            if (Request.requests.hasOwnProperty(i)) {
                Request.requests[i].abort();
            }
        }
    }

    var nextTick = function () {
        var isPromiseAvailable = typeof Promise === "function" && typeof Promise.resolve === "function";

        if (isPromiseAvailable) {
            return function (cb) {
                return Promise.resolve().then(cb);
            };
        } else {
            return function (cb, setTimeoutFn) {
                return setTimeoutFn(cb, 0);
            };
        }
    }();
    var WebSocket = globalThis.WebSocket || globalThis.MozWebSocket;
    var usingBrowserWebSocket = true;
    var defaultBinaryType = "arraybuffer";

    var isReactNative = typeof navigator !== "undefined" && typeof navigator.product === "string" && navigator.product.toLowerCase() === "reactnative";
    var WS = /*#__PURE__*/function (_Transport) {
        _inherits(WS, _Transport);

        var _super = _createSuper(WS);

        /**
         * WebSocket transport constructor.
         *
         * @api {Object} connection options
         * @api public
         */
        function WS(opts) {
            var _this;

            _classCallCheck(this, WS);

            _this = _super.call(this, opts);
            _this.supportsBinary = !opts.forceBase64;
            return _this;
        }
        /**
         * Transport name.
         *
         * @api public
         */


        _createClass(WS, [{
            key: "name",
            get: function get() {
                return "websocket";
            }
            /**
             * Opens socket.
             *
             * @api private
             */

        }, {
            key: "doOpen",
            value: function doOpen() {
                if (!this.check()) {
                    // let probe timeout
                    return;
                }

                var uri = this.uri();
                var protocols = this.opts.protocols; // React Native only supports the 'headers' option, and will print a warning if anything else is passed

                var opts = isReactNative ? {} : pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress", "protocolVersion", "origin", "maxPayload", "family", "checkServerIdentity");

                if (this.opts.extraHeaders) {
                    opts.headers = this.opts.extraHeaders;
                }

                try {
                    this.ws = usingBrowserWebSocket && !isReactNative ? protocols ? new WebSocket(uri, protocols) : new WebSocket(uri) : new WebSocket(uri, protocols, opts);
                } catch (err) {
                    return this.emit("error", err);
                }

                this.ws.binaryType = this.socket.binaryType || defaultBinaryType;
                this.addEventListeners();
            }
            /**
             * Adds event listeners to the socket
             *
             * @api private
             */

        }, {
            key: "addEventListeners",
            value: function addEventListeners() {
                var _this2 = this;

                this.ws.onopen = function () {
                    if (_this2.opts.autoUnref) {
                        _this2.ws._socket.unref();
                    }

                    _this2.onOpen();
                };

                this.ws.onclose = this.onClose.bind(this);

                this.ws.onmessage = function (ev) {
                    return _this2.onData(ev.data);
                };

                this.ws.onerror = function (e) {
                    return _this2.onError("websocket error", e);
                };
            }
            /**
             * Writes data to socket.
             *
             * @param {Array} array of packets.
             * @api private
             */

        }, {
            key: "write",
            value: function write(packets) {
                var _this3 = this;

                this.writable = false; // encodePacket efficient as it uses WS framing
                // no need for encodePayload

                var _loop = function _loop(i) {
                    var packet = packets[i];
                    var lastPacket = i === packets.length - 1;
                    encodePacket(packet, _this3.supportsBinary, function (data) {
                        // always create a new object (GH-437)
                        var opts = {};
                        // have a chance of informing us about it yet, in that case send will
                        // throw an error


                        try {
                            if (usingBrowserWebSocket) {
                                // TypeError is thrown when passing the second argument on Safari
                                _this3.ws.send(data);
                            }
                        } catch (e) { }

                        if (lastPacket) {
                            // fake drain
                            // defer to next tick to allow Socket to clear writeBuffer
                            nextTick(function () {
                                _this3.writable = true;

                                _this3.emit("drain");
                            }, _this3.setTimeoutFn);
                        }
                    });
                };

                for (var i = 0; i < packets.length; i++) {
                    _loop(i);
                }
            }
            /**
             * Closes socket.
             *
             * @api private
             */

        }, {
            key: "doClose",
            value: function doClose() {
                if (typeof this.ws !== "undefined") {
                    this.ws.close();
                    this.ws = null;
                }
            }
            /**
             * Generates uri for connection.
             *
             * @api private
             */

        }, {
            key: "uri",
            value: function uri() {
                var query = this.query || {};
                var schema = this.opts.secure ? "wss" : "ws";
                var port = ""; // avoid port if default for schema

                if (this.opts.port && ("wss" === schema && Number(this.opts.port) !== 443 || "ws" === schema && Number(this.opts.port) !== 80)) {
                    port = ":" + this.opts.port;
                } // append timestamp to URI


                if (this.opts.timestampRequests) {
                    query[this.opts.timestampParam] = yeast_1();
                } // communicate binary support capabilities


                if (!this.supportsBinary) {
                    query.b64 = 1;
                }

                var encodedQuery = parseqs.encode(query);
                var ipv6 = this.opts.hostname.indexOf(":") !== -1;
                return schema + "://" + (ipv6 ? "[" + this.opts.hostname + "]" : this.opts.hostname) + port + this.opts.path + (encodedQuery.length ? "?" + encodedQuery : "");
            }
            /**
             * Feature detection for WebSocket.
             *
             * @return {Boolean} whether this transport is available.
             * @api public
             */

        }, {
            key: "check",
            value: function check() {
                return !!WebSocket && !("__initialize" in WebSocket && this.name === WS.prototype.name);
            }
        }]);

        return WS;
    }(Transport);

    var transports = {
        websocket: WS,
        polling: XHR
    };

    var Socket$1 = /*#__PURE__*/function (_Emitter) {
        _inherits(Socket, _Emitter);

        var _super = _createSuper(Socket);

        /**
         * Socket constructor.
         *
         * @param {String|Object} uri or options
         * @param {Object} opts - options
         * @api public
         */
        function Socket(uri) {
            var _this;

            var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

            _classCallCheck(this, Socket);

            _this = _super.call(this);

            if (uri && "object" === _typeof(uri)) {
                opts = uri;
                uri = null;
            }

            if (uri) {
                uri = parseuri(uri);
                opts.hostname = uri.host;
                opts.secure = uri.protocol === "https" || uri.protocol === "wss";
                opts.port = uri.port;
                if (uri.query) opts.query = uri.query;
            } else if (opts.host) {
                opts.hostname = parseuri(opts.host).host;
            }

            installTimerFunctions(_assertThisInitialized(_this), opts);
            _this.secure = null != opts.secure ? opts.secure : typeof location !== "undefined" && "https:" === location.protocol;

            if (opts.hostname && !opts.port) {
                // if no port is specified manually, use the protocol default
                opts.port = _this.secure ? "443" : "80";
            }

            _this.hostname = opts.hostname || (typeof location !== "undefined" ? location.hostname : "localhost");
            _this.port = opts.port || (typeof location !== "undefined" && location.port ? location.port : _this.secure ? "443" : "80");
            _this.transports = opts.transports || ["polling", "websocket"];
            _this.readyState = "";
            _this.writeBuffer = [];
            _this.prevBufferLen = 0;
            _this.opts = _extends({
                path: "/engine.io",
                agent: false,
                withCredentials: false,
                upgrade: true,
                timestampParam: "t",
                rememberUpgrade: false,
                rejectUnauthorized: true,
                perMessageDeflate: {
                    threshold: 1024
                },
                transportOptions: {},
                closeOnBeforeunload: true
            }, opts);
            _this.opts.path = _this.opts.path.replace(/\/$/, "") + "/";

            if (typeof _this.opts.query === "string") {
                _this.opts.query = parseqs.decode(_this.opts.query);
            } // set on handshake


            _this.id = null;
            _this.upgrades = null;
            _this.pingInterval = null;
            _this.pingTimeout = null; // set on heartbeat

            _this.pingTimeoutTimer = null;

            if (typeof addEventListener === "function") {
                if (_this.opts.closeOnBeforeunload) {
                    // Firefox closes the connection when the "beforeunload" event is emitted but not Chrome. This event listener
                    // ensures every browser behaves the same (no "disconnect" event at the Socket.IO level when the page is
                    // closed/reloaded)
                    addEventListener("beforeunload", function () {
                        if (_this.transport) {
                            // silently close the transport
                            _this.transport.removeAllListeners();

                            _this.transport.close();
                        }
                    }, false);
                }

                if (_this.hostname !== "localhost") {
                    _this.offlineEventListener = function () {
                        _this.onClose("transport close");
                    };

                    addEventListener("offline", _this.offlineEventListener, false);
                }
            }

            _this.open();

            return _this;
        }
        /**
         * Creates transport of the given type.
         *
         * @param {String} transport name
         * @return {Transport}
         * @api private
         */


        _createClass(Socket, [{
            key: "createTransport",
            value: function createTransport(name) {
                var query = clone(this.opts.query); // append engine.io protocol identifier

                query.EIO = protocol$1; // transport name

                query.transport = name; // session id if we already have one

                if (this.id) query.sid = this.id;

                var opts = _extends({}, this.opts.transportOptions[name], this.opts, {
                    query: query,
                    socket: this,
                    hostname: this.hostname,
                    secure: this.secure,
                    port: this.port
                });

                return new transports[name](opts);
            }
            /**
             * Initializes transport to use and starts probe.
             *
             * @api private
             */

        }, {
            key: "open",
            value: function open() {
                var _this2 = this;

                var transport;

                if (this.opts.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf("websocket") !== -1) {
                    transport = "websocket";
                } else if (0 === this.transports.length) {
                    // Emit error on next tick so it can be listened to
                    this.setTimeoutFn(function () {
                        _this2.emitReserved("error", "No transports available");
                    }, 0);
                    return;
                } else {
                    transport = this.transports[0];
                }

                this.readyState = "opening"; // Retry with the next transport if the transport is disabled (jsonp: false)

                try {
                    transport = this.createTransport(transport);
                } catch (e) {
                    this.transports.shift();
                    this.open();
                    return;
                }

                transport.open();
                this.setTransport(transport);
            }
            /**
             * Sets the current transport. Disables the existing one (if any).
             *
             * @api private
             */

        }, {
            key: "setTransport",
            value: function setTransport(transport) {
                var _this3 = this;

                if (this.transport) {
                    this.transport.removeAllListeners();
                } // set up transport


                this.transport = transport; // set up transport listeners

                transport.on("drain", this.onDrain.bind(this)).on("packet", this.onPacket.bind(this)).on("error", this.onError.bind(this)).on("close", function () {
                    _this3.onClose("transport close");
                });
            }
            /**
             * Probes a transport.
             *
             * @param {String} transport name
             * @api private
             */

        }, {
            key: "probe",
            value: function probe(name) {
                var _this4 = this;

                var transport = this.createTransport(name);
                var failed = false;
                Socket.priorWebsocketSuccess = false;

                var onTransportOpen = function onTransportOpen() {
                    if (failed) return;
                    transport.send([{
                        type: "ping",
                        data: "probe"
                    }]);
                    transport.once("packet", function (msg) {
                        if (failed) return;

                        if ("pong" === msg.type && "probe" === msg.data) {
                            _this4.upgrading = true;

                            _this4.emitReserved("upgrading", transport);

                            if (!transport) return;
                            Socket.priorWebsocketSuccess = "websocket" === transport.name;

                            _this4.transport.pause(function () {
                                if (failed) return;
                                if ("closed" === _this4.readyState) return;
                                cleanup();

                                _this4.setTransport(transport);

                                transport.send([{
                                    type: "upgrade"
                                }]);

                                _this4.emitReserved("upgrade", transport);

                                transport = null;
                                _this4.upgrading = false;

                                _this4.flush();
                            });
                        } else {
                            var err = new Error("probe error"); // @ts-ignore

                            err.transport = transport.name;

                            _this4.emitReserved("upgradeError", err);
                        }
                    });
                };

                function freezeTransport() {
                    if (failed) return; // Any callback called by transport should be ignored since now

                    failed = true;
                    cleanup();
                    transport.close();
                    transport = null;
                } // Handle any error that happens while probing


                var onerror = function onerror(err) {
                    var error = new Error("probe error: " + err); // @ts-ignore

                    error.transport = transport.name;
                    freezeTransport();

                    _this4.emitReserved("upgradeError", error);
                };

                function onTransportClose() {
                    onerror("transport closed");
                } // When the socket is closed while we're probing


                function onclose() {
                    onerror("socket closed");
                } // When the socket is upgraded while we're probing


                function onupgrade(to) {
                    if (transport && to.name !== transport.name) {
                        freezeTransport();
                    }
                } // Remove all listeners on the transport and on self


                var cleanup = function cleanup() {
                    transport.removeListener("open", onTransportOpen);
                    transport.removeListener("error", onerror);
                    transport.removeListener("close", onTransportClose);

                    _this4.off("close", onclose);

                    _this4.off("upgrading", onupgrade);
                };

                transport.once("open", onTransportOpen);
                transport.once("error", onerror);
                transport.once("close", onTransportClose);
                this.once("close", onclose);
                this.once("upgrading", onupgrade);
                transport.open();
            }
            /**
             * Called when connection is deemed open.
             *
             * @api private
             */

        }, {
            key: "onOpen",
            value: function onOpen() {
                this.readyState = "open";
                Socket.priorWebsocketSuccess = "websocket" === this.transport.name;
                this.emitReserved("open");
                this.flush(); // we check for `readyState` in case an `open`
                // listener already closed the socket

                if ("open" === this.readyState && this.opts.upgrade && this.transport.pause) {
                    var i = 0;
                    var l = this.upgrades.length;

                    for (; i < l; i++) {
                        this.probe(this.upgrades[i]);
                    }
                }
            }
            /**
             * Handles a packet.
             *
             * @api private
             */

        }, {
            key: "onPacket",
            value: function onPacket(packet) {
                if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
                    this.emitReserved("packet", packet); // Socket is live - any packet counts

                    this.emitReserved("heartbeat");

                    switch (packet.type) {
                        case "open":
                            this.onHandshake(JSON.parse(packet.data));
                            break;

                        case "ping":
                            this.resetPingTimeout();
                            this.sendPacket("pong");
                            this.emitReserved("ping");
                            this.emitReserved("pong");
                            break;

                        case "error":
                            var err = new Error("server error"); // @ts-ignore

                            err.code = packet.data;
                            this.onError(err);
                            break;

                        case "message":
                            this.emitReserved("data", packet.data);
                            this.emitReserved("message", packet.data);
                            break;
                    }
                }
            }
            /**
             * Called upon handshake completion.
             *
             * @param {Object} data - handshake obj
             * @api private
             */

        }, {
            key: "onHandshake",
            value: function onHandshake(data) {
                this.emitReserved("handshake", data);
                this.id = data.sid;
                this.transport.query.sid = data.sid;
                this.upgrades = this.filterUpgrades(data.upgrades);
                this.pingInterval = data.pingInterval;
                this.pingTimeout = data.pingTimeout;
                this.onOpen(); // In case open handler closes socket

                if ("closed" === this.readyState) return;
                this.resetPingTimeout();
            }
            /**
             * Sets and resets ping timeout timer based on server pings.
             *
             * @api private
             */

        }, {
            key: "resetPingTimeout",
            value: function resetPingTimeout() {
                var _this5 = this;

                this.clearTimeoutFn(this.pingTimeoutTimer);
                this.pingTimeoutTimer = this.setTimeoutFn(function () {
                    _this5.onClose("ping timeout");
                }, this.pingInterval + this.pingTimeout);

                if (this.opts.autoUnref) {
                    this.pingTimeoutTimer.unref();
                }
            }
            /**
             * Called on `drain` event
             *
             * @api private
             */

        }, {
            key: "onDrain",
            value: function onDrain() {
                this.writeBuffer.splice(0, this.prevBufferLen); // setting prevBufferLen = 0 is very important
                // for example, when upgrading, upgrade packet is sent over,
                // and a nonzero prevBufferLen could cause problems on `drain`

                this.prevBufferLen = 0;

                if (0 === this.writeBuffer.length) {
                    this.emitReserved("drain");
                } else {
                    this.flush();
                }
            }
            /**
             * Flush write buffers.
             *
             * @api private
             */

        }, {
            key: "flush",
            value: function flush() {
                if ("closed" !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length) {
                    this.transport.send(this.writeBuffer); // keep track of current length of writeBuffer
                    // splice writeBuffer and callbackBuffer on `drain`

                    this.prevBufferLen = this.writeBuffer.length;
                    this.emitReserved("flush");
                }
            }
            /**
             * Sends a message.
             *
             * @param {String} message.
             * @param {Function} callback function.
             * @param {Object} options.
             * @return {Socket} for chaining.
             * @api public
             */

        }, {
            key: "write",
            value: function write(msg, options, fn) {
                this.sendPacket("message", msg, options, fn);
                return this;
            }
        }, {
            key: "send",
            value: function send(msg, options, fn) {
                this.sendPacket("message", msg, options, fn);
                return this;
            }
            /**
             * Sends a packet.
             *
             * @param {String} packet type.
             * @param {String} data.
             * @param {Object} options.
             * @param {Function} callback function.
             * @api private
             */

        }, {
            key: "sendPacket",
            value: function sendPacket(type, data, options, fn) {
                if ("function" === typeof data) {
                    fn = data;
                    data = undefined;
                }

                if ("function" === typeof options) {
                    fn = options;
                    options = null;
                }

                if ("closing" === this.readyState || "closed" === this.readyState) {
                    return;
                }

                options = options || {};
                options.compress = false !== options.compress;
                var packet = {
                    type: type,
                    data: data,
                    options: options
                };
                this.emitReserved("packetCreate", packet);
                this.writeBuffer.push(packet);
                if (fn) this.once("flush", fn);
                this.flush();
            }
            /**
             * Closes the connection.
             *
             * @api public
             */

        }, {
            key: "close",
            value: function close() {
                var _this6 = this;

                var close = function close() {
                    _this6.onClose("forced close");

                    _this6.transport.close();
                };

                var cleanupAndClose = function cleanupAndClose() {
                    _this6.off("upgrade", cleanupAndClose);

                    _this6.off("upgradeError", cleanupAndClose);

                    close();
                };

                var waitForUpgrade = function waitForUpgrade() {
                    // wait for upgrade to finish since we can't send packets while pausing a transport
                    _this6.once("upgrade", cleanupAndClose);

                    _this6.once("upgradeError", cleanupAndClose);
                };

                if ("opening" === this.readyState || "open" === this.readyState) {
                    this.readyState = "closing";

                    if (this.writeBuffer.length) {
                        this.once("drain", function () {
                            if (_this6.upgrading) {
                                waitForUpgrade();
                            } else {
                                close();
                            }
                        });
                    } else if (this.upgrading) {
                        waitForUpgrade();
                    } else {
                        close();
                    }
                }

                return this;
            }
            /**
             * Called upon transport error
             *
             * @api private
             */

        }, {
            key: "onError",
            value: function onError(err) {
                Socket.priorWebsocketSuccess = false;
                this.emitReserved("error", err);
                this.onClose("transport error", err);
            }
            /**
             * Called upon transport close.
             *
             * @api private
             */

        }, {
            key: "onClose",
            value: function onClose(reason, desc) {
                if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
                    // clear timers
                    this.clearTimeoutFn(this.pingTimeoutTimer); // stop event from firing again for transport

                    this.transport.removeAllListeners("close"); // ensure transport won't stay open

                    this.transport.close(); // ignore further transport communication

                    this.transport.removeAllListeners();

                    if (typeof removeEventListener === "function") {
                        removeEventListener("offline", this.offlineEventListener, false);
                    } // set ready state


                    this.readyState = "closed"; // clear session id

                    this.id = null; // emit close event

                    this.emitReserved("close", reason, desc); // clean buffers after, so users can still
                    // grab the buffers on `close` event

                    this.writeBuffer = [];
                    this.prevBufferLen = 0;
                }
            }
            /**
             * Filters upgrades, returning only those matching client transports.
             *
             * @param {Array} server upgrades
             * @api private
             *
             */

        }, {
            key: "filterUpgrades",
            value: function filterUpgrades(upgrades) {
                var filteredUpgrades = [];
                var i = 0;
                var j = upgrades.length;

                for (; i < j; i++) {
                    if (~this.transports.indexOf(upgrades[i])) filteredUpgrades.push(upgrades[i]);
                }

                return filteredUpgrades;
            }
        }]);

        return Socket;
    }(Emitter_1);
    Socket$1.protocol = protocol$1;

    function clone(obj) {
        var o = {};

        for (var i in obj) {
            if (obj.hasOwnProperty(i)) {
                o[i] = obj[i];
            }
        }

        return o;
    }

    var withNativeArrayBuffer = typeof ArrayBuffer === "function";

    var isView = function isView(obj) {
        return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj.buffer instanceof ArrayBuffer;
    };

    var toString = Object.prototype.toString;
    var withNativeBlob = typeof Blob === "function" || typeof Blob !== "undefined" && toString.call(Blob) === "[object BlobConstructor]";
    var withNativeFile = typeof File === "function" || typeof File !== "undefined" && toString.call(File) === "[object FileConstructor]";
    /**
     * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.
     *
     * @private
     */

    function isBinary(obj) {
        return withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)) || withNativeBlob && obj instanceof Blob || withNativeFile && obj instanceof File;
    }
    function hasBinary(obj, toJSON) {
        if (!obj || _typeof(obj) !== "object") {
            return false;
        }

        if (Array.isArray(obj)) {
            for (var i = 0, l = obj.length; i < l; i++) {
                if (hasBinary(obj[i])) {
                    return true;
                }
            }

            return false;
        }

        if (isBinary(obj)) {
            return true;
        }

        if (obj.toJSON && typeof obj.toJSON === "function" && arguments.length === 1) {
            return hasBinary(obj.toJSON(), true);
        }

        for (var key in obj) {
            if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
                return true;
            }
        }

        return false;
    }

    /**
     * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.
     *
     * @param {Object} packet - socket.io event packet
     * @return {Object} with deconstructed packet and list of buffers
     * @public
     */

    function deconstructPacket(packet) {
        var buffers = [];
        var packetData = packet.data;
        var pack = packet;
        pack.data = _deconstructPacket(packetData, buffers);
        pack.attachments = buffers.length; // number of binary 'attachments'

        return {
            packet: pack,
            buffers: buffers
        };
    }

    function _deconstructPacket(data, buffers) {
        if (!data) return data;

        if (isBinary(data)) {
            var placeholder = {
                _placeholder: true,
                num: buffers.length
            };
            buffers.push(data);
            return placeholder;
        } else if (Array.isArray(data)) {
            var newData = new Array(data.length);

            for (var i = 0; i < data.length; i++) {
                newData[i] = _deconstructPacket(data[i], buffers);
            }

            return newData;
        } else if (_typeof(data) === "object" && !(data instanceof Date)) {
            var _newData = {};

            for (var key in data) {
                if (data.hasOwnProperty(key)) {
                    _newData[key] = _deconstructPacket(data[key], buffers);
                }
            }

            return _newData;
        }

        return data;
    }
    /**
     * Reconstructs a binary packet from its placeholder packet and buffers
     *
     * @param {Object} packet - event packet with placeholders
     * @param {Array} buffers - binary buffers to put in placeholder positions
     * @return {Object} reconstructed packet
     * @public
     */


    function reconstructPacket(packet, buffers) {
        packet.data = _reconstructPacket(packet.data, buffers);
        packet.attachments = undefined; // no longer useful

        return packet;
    }

    function _reconstructPacket(data, buffers) {
        if (!data) return data;

        if (data && data._placeholder) {
            return buffers[data.num]; // appropriate buffer (should be natural order anyway)
        } else if (Array.isArray(data)) {
            for (var i = 0; i < data.length; i++) {
                data[i] = _reconstructPacket(data[i], buffers);
            }
        } else if (_typeof(data) === "object") {
            for (var key in data) {
                if (data.hasOwnProperty(key)) {
                    data[key] = _reconstructPacket(data[key], buffers);
                }
            }
        }

        return data;
    }

    /**
     * Protocol version.
     *
     * @public
     */

    var protocol = 5;
    var PacketType;

    (function (PacketType) {
        PacketType[PacketType["CONNECT"] = 0] = "CONNECT";
        PacketType[PacketType["DISCONNECT"] = 1] = "DISCONNECT";
        PacketType[PacketType["EVENT"] = 2] = "EVENT";
        PacketType[PacketType["ACK"] = 3] = "ACK";
        PacketType[PacketType["CONNECT_ERROR"] = 4] = "CONNECT_ERROR";
        PacketType[PacketType["BINARY_EVENT"] = 5] = "BINARY_EVENT";
        PacketType[PacketType["BINARY_ACK"] = 6] = "BINARY_ACK";
    })(PacketType || (PacketType = {}));
    /**
     * A socket.io Encoder instance
     */


    var Encoder = /*#__PURE__*/function () {
        function Encoder() {
            _classCallCheck(this, Encoder);
        }

        _createClass(Encoder, [{
            key: "encode",
            value:
                /**
                 * Encode a packet as a single string if non-binary, or as a
                 * buffer sequence, depending on packet type.
                 *
                 * @param {Object} obj - packet object
                 */
                function encode(obj) {
                    if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {
                        if (hasBinary(obj)) {
                            obj.type = obj.type === PacketType.EVENT ? PacketType.BINARY_EVENT : PacketType.BINARY_ACK;
                            return this.encodeAsBinary(obj);
                        }
                    }

                    return [this.encodeAsString(obj)];
                }
            /**
             * Encode packet as string.
             */

        }, {
            key: "encodeAsString",
            value: function encodeAsString(obj) {
                // first is type
                var str = "" + obj.type; // attachments if we have them

                if (obj.type === PacketType.BINARY_EVENT || obj.type === PacketType.BINARY_ACK) {
                    str += obj.attachments + "-";
                } // if we have a namespace other than `/`
                // we append it followed by a comma `,`


                if (obj.nsp && "/" !== obj.nsp) {
                    str += obj.nsp + ",";
                } // immediately followed by the id


                if (null != obj.id) {
                    str += obj.id;
                } // json data


                if (null != obj.data) {
                    str += JSON.stringify(obj.data);
                }

                return str;
            }
            /**
             * Encode packet as 'buffer sequence' by removing blobs, and
             * deconstructing packet into object with placeholders and
             * a list of buffers.
             */

        }, {
            key: "encodeAsBinary",
            value: function encodeAsBinary(obj) {
                var deconstruction = deconstructPacket(obj);
                var pack = this.encodeAsString(deconstruction.packet);
                var buffers = deconstruction.buffers;
                buffers.unshift(pack); // add packet info to beginning of data list

                return buffers; // write all the buffers
            }
        }]);

        return Encoder;
    }();
    /**
     * A socket.io Decoder instance
     *
     * @return {Object} decoder
     */

    var Decoder = /*#__PURE__*/function (_Emitter) {
        _inherits(Decoder, _Emitter);

        var _super = _createSuper(Decoder);

        function Decoder() {
            _classCallCheck(this, Decoder);

            return _super.call(this);
        }
        /**
         * Decodes an encoded packet string into packet JSON.
         *
         * @param {String} obj - encoded packet
         */


        _createClass(Decoder, [{
            key: "add",
            value: function add(obj) {
                var packet;

                if (typeof obj === "string") {
                    packet = this.decodeString(obj);

                    if (packet.type === PacketType.BINARY_EVENT || packet.type === PacketType.BINARY_ACK) {
                        // binary packet's json
                        this.reconstructor = new BinaryReconstructor(packet); // no attachments, labeled binary but no binary data to follow

                        if (packet.attachments === 0) {
                            _get(_getPrototypeOf(Decoder.prototype), "emitReserved", this).call(this, "decoded", packet);
                        }
                    } else {
                        // non-binary full packet
                        _get(_getPrototypeOf(Decoder.prototype), "emitReserved", this).call(this, "decoded", packet);
                    }
                } else if (isBinary(obj) || obj.base64) {
                    // raw binary data
                    if (!this.reconstructor) {
                        throw new Error("got binary data when not reconstructing a packet");
                    } else {
                        packet = this.reconstructor.takeBinaryData(obj);

                        if (packet) {
                            // received final buffer
                            this.reconstructor = null;

                            _get(_getPrototypeOf(Decoder.prototype), "emitReserved", this).call(this, "decoded", packet);
                        }
                    }
                } else {
                    throw new Error("Unknown type: " + obj);
                }
            }
            /**
             * Decode a packet String (JSON data)
             *
             * @param {String} str
             * @return {Object} packet
             */

        }, {
            key: "decodeString",
            value: function decodeString(str) {
                var i = 0; // look up type

                var p = {
                    type: Number(str.charAt(0))
                };

                if (PacketType[p.type] === undefined) {
                    throw new Error("unknown packet type " + p.type);
                } // look up attachments if type binary


                if (p.type === PacketType.BINARY_EVENT || p.type === PacketType.BINARY_ACK) {
                    var start = i + 1;

                    while (str.charAt(++i) !== "-" && i != str.length) { }

                    var buf = str.substring(start, i);

                    if (buf != Number(buf) || str.charAt(i) !== "-") {
                        throw new Error("Illegal attachments");
                    }

                    p.attachments = Number(buf);
                } // look up namespace (if any)


                if ("/" === str.charAt(i + 1)) {
                    var _start = i + 1;

                    while (++i) {
                        var c = str.charAt(i);
                        if ("," === c) break;
                        if (i === str.length) break;
                    }

                    p.nsp = str.substring(_start, i);
                } else {
                    p.nsp = "/";
                } // look up id


                var next = str.charAt(i + 1);

                if ("" !== next && Number(next) == next) {
                    var _start2 = i + 1;

                    while (++i) {
                        var _c = str.charAt(i);

                        if (null == _c || Number(_c) != _c) {
                            --i;
                            break;
                        }

                        if (i === str.length) break;
                    }

                    p.id = Number(str.substring(_start2, i + 1));
                } // look up json data


                if (str.charAt(++i)) {
                    var payload = tryParse(str.substr(i));

                    if (Decoder.isPayloadValid(p.type, payload)) {
                        p.data = payload;
                    } else {
                        throw new Error("invalid payload");
                    }
                }

                return p;
            }
        }, {
            key: "destroy",
            value:
                /**
                 * Deallocates a parser's resources
                 */
                function destroy() {
                    if (this.reconstructor) {
                        this.reconstructor.finishedReconstruction();
                    }
                }
        }], [{
            key: "isPayloadValid",
            value: function isPayloadValid(type, payload) {
                switch (type) {
                    case PacketType.CONNECT:
                        return _typeof(payload) === "object";

                    case PacketType.DISCONNECT:
                        return payload === undefined;

                    case PacketType.CONNECT_ERROR:
                        return typeof payload === "string" || _typeof(payload) === "object";

                    case PacketType.EVENT:
                    case PacketType.BINARY_EVENT:
                        return Array.isArray(payload) && payload.length > 0;

                    case PacketType.ACK:
                    case PacketType.BINARY_ACK:
                        return Array.isArray(payload);
                }
            }
        }]);

        return Decoder;
    }(Emitter_1);

    function tryParse(str) {
        try {
            return JSON.parse(str);
        } catch (e) {
            return false;
        }
    }
    /**
     * A manager of a binary event's 'buffer sequence'. Should
     * be constructed whenever a packet of type BINARY_EVENT is
     * decoded.
     *
     * @param {Object} packet
     * @return {BinaryReconstructor} initialized reconstructor
     */


    var BinaryReconstructor = /*#__PURE__*/function () {
        function BinaryReconstructor(packet) {
            _classCallCheck(this, BinaryReconstructor);

            this.packet = packet;
            this.buffers = [];
            this.reconPack = packet;
        }
        /**
         * Method to be called when binary data received from connection
         * after a BINARY_EVENT packet.
         *
         * @param {Buffer | ArrayBuffer} binData - the raw binary data received
         * @return {null | Object} returns null if more binary data is expected or
         *   a reconstructed packet object if all buffers have been received.
         */


        _createClass(BinaryReconstructor, [{
            key: "takeBinaryData",
            value: function takeBinaryData(binData) {
                this.buffers.push(binData);

                if (this.buffers.length === this.reconPack.attachments) {
                    // done with buffer list
                    var packet = reconstructPacket(this.reconPack, this.buffers);
                    this.finishedReconstruction();
                    return packet;
                }

                return null;
            }
            /**
             * Cleans up binary packet reconstruction variables.
             */

        }, {
            key: "finishedReconstruction",
            value: function finishedReconstruction() {
                this.reconPack = null;
                this.buffers = [];
            }
        }]);

        return BinaryReconstructor;
    }();

    var parser = /*#__PURE__*/Object.freeze({
        __proto__: null,
        protocol: protocol,
        get PacketType() { return PacketType; },
        Encoder: Encoder,
        Decoder: Decoder
    });

    function on(obj, ev, fn) {
        obj.on(ev, fn);
        return function subDestroy() {
            obj.off(ev, fn);
        };
    }

    /**
     * Internal events.
     * These events can't be emitted by the user.
     */

    var RESERVED_EVENTS = Object.freeze({
        connect: 1,
        connect_error: 1,
        disconnect: 1,
        disconnecting: 1,
        // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener
        newListener: 1,
        removeListener: 1
    });
    var Socket = /*#__PURE__*/function (_Emitter) {
        _inherits(Socket, _Emitter);

        var _super = _createSuper(Socket);

        /**
         * `Socket` constructor.
         *
         * @public
         */
        function Socket(io, nsp, opts) {
            var _this;

            _classCallCheck(this, Socket);

            _this = _super.call(this);
            _this.connected = false;
            _this.disconnected = true;
            _this.receiveBuffer = [];
            _this.sendBuffer = [];
            _this.ids = 0;
            _this.acks = {};
            _this.flags = {};
            _this.io = io;
            _this.nsp = nsp;

            if (opts && opts.auth) {
                _this.auth = opts.auth;
            }

            if (_this.io._autoConnect) _this.open();
            return _this;
        }
        /**
         * Subscribe to open, close and packet events
         *
         * @private
         */


        _createClass(Socket, [{
            key: "subEvents",
            value: function subEvents() {
                if (this.subs) return;
                var io = this.io;
                this.subs = [on(io, "open", this.onopen.bind(this)), on(io, "packet", this.onpacket.bind(this)), on(io, "error", this.onerror.bind(this)), on(io, "close", this.onclose.bind(this))];
            }
            /**
             * Whether the Socket will try to reconnect when its Manager connects or reconnects
             */

        }, {
            key: "active",
            get: function get() {
                return !!this.subs;
            }
            /**
             * "Opens" the socket.
             *
             * @public
             */

        }, {
            key: "connect",
            value: function connect() {
                if (this.connected) return this;
                this.subEvents();
                if (!this.io["_reconnecting"]) this.io.open(); // ensure open

                if ("open" === this.io._readyState) this.onopen();
                return this;
            }
            /**
             * Alias for connect()
             */

        }, {
            key: "open",
            value: function open() {
                return this.connect();
            }
            /**
             * Sends a `message` event.
             *
             * @return self
             * @public
             */

        }, {
            key: "send",
            value: function send() {
                for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
                    args[_key] = arguments[_key];
                }

                args.unshift("message");
                this.emit.apply(this, args);
                return this;
            }
            /**
             * Override `emit`.
             * If the event is in `events`, it's emitted normally.
             *
             * @return self
             * @public
             */

        }, {
            key: "emit",
            value: function emit(ev) {
                if (RESERVED_EVENTS.hasOwnProperty(ev)) {
                    throw new Error('"' + ev + '" is a reserved event name');
                }

                for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
                    args[_key2 - 1] = arguments[_key2];
                }

                args.unshift(ev);
                var packet = {
                    type: PacketType.EVENT,
                    data: args
                };
                packet.options = {};
                packet.options.compress = this.flags.compress !== false; // event ack callback

                if ("function" === typeof args[args.length - 1]) {
                    var id = this.ids++;
                    var ack = args.pop();

                    this._registerAckCallback(id, ack);

                    packet.id = id;
                }

                var isTransportWritable = this.io.engine && this.io.engine.transport && this.io.engine.transport.writable;
                var discardPacket = this.flags["volatile"] && (!isTransportWritable || !this.connected);

                if (discardPacket); else if (this.connected) {
                    this.packet(packet);
                } else {
                    this.sendBuffer.push(packet);
                }

                this.flags = {};
                return this;
            }
            /**
             * @private
             */

        }, {
            key: "_registerAckCallback",
            value: function _registerAckCallback(id, ack) {
                var _this2 = this;

                var timeout = this.flags.timeout;

                if (timeout === undefined) {
                    this.acks[id] = ack;
                    return;
                } // @ts-ignore


                var timer = this.io.setTimeoutFn(function () {
                    delete _this2.acks[id];

                    for (var i = 0; i < _this2.sendBuffer.length; i++) {
                        if (_this2.sendBuffer[i].id === id) {
                            _this2.sendBuffer.splice(i, 1);
                        }
                    }

                    ack.call(_this2, new Error("operation has timed out"));
                }, timeout);

                this.acks[id] = function () {
                    // @ts-ignore
                    _this2.io.clearTimeoutFn(timer);

                    for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
                        args[_key3] = arguments[_key3];
                    }

                    ack.apply(_this2, [null].concat(args));
                };
            }
            /**
             * Sends a packet.
             *
             * @param packet
             * @private
             */

        }, {
            key: "packet",
            value: function packet(_packet) {
                _packet.nsp = this.nsp;

                this.io._packet(_packet);
            }
            /**
             * Called upon engine `open`.
             *
             * @private
             */

        }, {
            key: "onopen",
            value: function onopen() {
                var _this3 = this;

                if (typeof this.auth == "function") {
                    this.auth(function (data) {
                        _this3.packet({
                            type: PacketType.CONNECT,
                            data: data
                        });
                    });
                } else {
                    this.packet({
                        type: PacketType.CONNECT,
                        data: this.auth
                    });
                }
            }
            /**
             * Called upon engine or manager `error`.
             *
             * @param err
             * @private
             */

        }, {
            key: "onerror",
            value: function onerror(err) {
                if (!this.connected) {
                    this.emitReserved("connect_error", err);
                }
            }
            /**
             * Called upon engine `close`.
             *
             * @param reason
             * @private
             */

        }, {
            key: "onclose",
            value: function onclose(reason) {
                this.connected = false;
                this.disconnected = true;
                delete this.id;
                this.emitReserved("disconnect", reason);
            }
            /**
             * Called with socket packet.
             *
             * @param packet
             * @private
             */

        }, {
            key: "onpacket",
            value: function onpacket(packet) {
                var sameNamespace = packet.nsp === this.nsp;
                if (!sameNamespace) return;

                switch (packet.type) {
                    case PacketType.CONNECT:
                        if (packet.data && packet.data.sid) {
                            var id = packet.data.sid;
                            this.onconnect(id);
                        } else {
                            this.emitReserved("connect_error", new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));
                        }

                        break;

                    case PacketType.EVENT:
                        this.onevent(packet);
                        break;

                    case PacketType.BINARY_EVENT:
                        this.onevent(packet);
                        break;

                    case PacketType.ACK:
                        this.onack(packet);
                        break;

                    case PacketType.BINARY_ACK:
                        this.onack(packet);
                        break;

                    case PacketType.DISCONNECT:
                        this.ondisconnect();
                        break;

                    case PacketType.CONNECT_ERROR:
                        this.destroy();
                        var err = new Error(packet.data.message); // @ts-ignore

                        err.data = packet.data.data;
                        this.emitReserved("connect_error", err);
                        break;
                }
            }
            /**
             * Called upon a server event.
             *
             * @param packet
             * @private
             */

        }, {
            key: "onevent",
            value: function onevent(packet) {
                var args = packet.data || [];

                if (null != packet.id) {
                    args.push(this.ack(packet.id));
                }

                if (this.connected) {
                    this.emitEvent(args);
                } else {
                    this.receiveBuffer.push(Object.freeze(args));
                }
            }
        }, {
            key: "emitEvent",
            value: function emitEvent(args) {
                if (this._anyListeners && this._anyListeners.length) {
                    var listeners = this._anyListeners.slice();

                    var _iterator = _createForOfIteratorHelper(listeners),
                        _step;

                    try {
                        for (_iterator.s(); !(_step = _iterator.n()).done;) {
                            var listener = _step.value;
                            listener.apply(this, args);
                        }
                    } catch (err) {
                        _iterator.e(err);
                    } finally {
                        _iterator.f();
                    }
                }

                _get(_getPrototypeOf(Socket.prototype), "emit", this).apply(this, args);
            }
            /**
             * Produces an ack callback to emit with an event.
             *
             * @private
             */

        }, {
            key: "ack",
            value: function ack(id) {
                var self = this;
                var sent = false;
                return function () {
                    // prevent double callbacks
                    if (sent) return;
                    sent = true;

                    for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
                        args[_key4] = arguments[_key4];
                    }

                    self.packet({
                        type: PacketType.ACK,
                        id: id,
                        data: args
                    });
                };
            }
            /**
             * Called upon a server acknowlegement.
             *
             * @param packet
             * @private
             */

        }, {
            key: "onack",
            value: function onack(packet) {
                var ack = this.acks[packet.id];

                if ("function" === typeof ack) {
                    ack.apply(this, packet.data);
                    delete this.acks[packet.id];
                }
            }
            /**
             * Called upon server connect.
             *
             * @private
             */

        }, {
            key: "onconnect",
            value: function onconnect(id) {
                this.id = id;
                this.connected = true;
                this.disconnected = false;
                this.emitBuffered();
                this.emitReserved("connect");
            }
            /**
             * Emit buffered events (received and emitted).
             *
             * @private
             */

        }, {
            key: "emitBuffered",
            value: function emitBuffered() {
                var _this4 = this;

                this.receiveBuffer.forEach(function (args) {
                    return _this4.emitEvent(args);
                });
                this.receiveBuffer = [];
                this.sendBuffer.forEach(function (packet) {
                    return _this4.packet(packet);
                });
                this.sendBuffer = [];
            }
            /**
             * Called upon server disconnect.
             *
             * @private
             */

        }, {
            key: "ondisconnect",
            value: function ondisconnect() {
                this.destroy();
                this.onclose("io server disconnect");
            }
            /**
             * Called upon forced client/server side disconnections,
             * this method ensures the manager stops tracking us and
             * that reconnections don't get triggered for this.
             *
             * @private
             */

        }, {
            key: "destroy",
            value: function destroy() {
                if (this.subs) {
                    // clean subscriptions to avoid reconnections
                    this.subs.forEach(function (subDestroy) {
                        return subDestroy();
                    });
                    this.subs = undefined;
                }

                this.io["_destroy"](this);
            }
            /**
             * Disconnects the socket manually.
             *
             * @return self
             * @public
             */

        }, {
            key: "disconnect",
            value: function disconnect() {
                if (this.connected) {
                    this.packet({
                        type: PacketType.DISCONNECT
                    });
                } // remove socket from pool


                this.destroy();

                if (this.connected) {
                    // fire events
                    this.onclose("io client disconnect");
                }

                return this;
            }
            /**
             * Alias for disconnect()
             *
             * @return self
             * @public
             */

        }, {
            key: "close",
            value: function close() {
                return this.disconnect();
            }
            /**
             * Sets the compress flag.
             *
             * @param compress - if `true`, compresses the sending data
             * @return self
             * @public
             */

        }, {
            key: "compress",
            value: function compress(_compress) {
                this.flags.compress = _compress;
                return this;
            }
            /**
             * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not
             * ready to send messages.
             *
             * @returns self
             * @public
             */

        }, {
            key: "volatile",
            get: function get() {
                this.flags["volatile"] = true;
                return this;
            }
            /**
             * Sets a modifier for a subsequent event emission that the callback will be called with an error when the
             * given number of milliseconds have elapsed without an acknowledgement from the server:
             *
             * ```
             * socket.timeout(5000).emit("my-event", (err) => {
             *   if (err) {
             *     // the server did not acknowledge the event in the given delay
             *   }
             * });
             * ```
             *
             * @returns self
             * @public
             */

        }, {
            key: "timeout",
            value: function timeout(_timeout) {
                this.flags.timeout = _timeout;
                return this;
            }
            /**
             * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
             * callback.
             *
             * @param listener
             * @public
             */

        }, {
            key: "onAny",
            value: function onAny(listener) {
                this._anyListeners = this._anyListeners || [];

                this._anyListeners.push(listener);

                return this;
            }
            /**
             * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
             * callback. The listener is added to the beginning of the listeners array.
             *
             * @param listener
             * @public
             */

        }, {
            key: "prependAny",
            value: function prependAny(listener) {
                this._anyListeners = this._anyListeners || [];

                this._anyListeners.unshift(listener);

                return this;
            }
            /**
             * Removes the listener that will be fired when any event is emitted.
             *
             * @param listener
             * @public
             */

        }, {
            key: "offAny",
            value: function offAny(listener) {
                if (!this._anyListeners) {
                    return this;
                }

                if (listener) {
                    var listeners = this._anyListeners;

                    for (var i = 0; i < listeners.length; i++) {
                        if (listener === listeners[i]) {
                            listeners.splice(i, 1);
                            return this;
                        }
                    }
                } else {
                    this._anyListeners = [];
                }

                return this;
            }
            /**
             * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
             * e.g. to remove listeners.
             *
             * @public
             */

        }, {
            key: "listenersAny",
            value: function listenersAny() {
                return this._anyListeners || [];
            }
        }]);

        return Socket;
    }(Emitter_1);

    /**
     * Expose `Backoff`.
     */

    var backo2 = Backoff;
    /**
     * Initialize backoff timer with `opts`.
     *
     * - `min` initial timeout in milliseconds [100]
     * - `max` max timeout [10000]
     * - `jitter` [0]
     * - `factor` [2]
     *
     * @param {Object} opts
     * @api public
     */

    function Backoff(opts) {
        opts = opts || {};
        this.ms = opts.min || 100;
        this.max = opts.max || 10000;
        this.factor = opts.factor || 2;
        this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
        this.attempts = 0;
    }
    /**
     * Return the backoff duration.
     *
     * @return {Number}
     * @api public
     */


    Backoff.prototype.duration = function () {
        var ms = this.ms * Math.pow(this.factor, this.attempts++);

        if (this.jitter) {
            var rand = Math.random();
            var deviation = Math.floor(rand * this.jitter * ms);
            ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;
        }

        return Math.min(ms, this.max) | 0;
    };
    /**
     * Reset the number of attempts.
     *
     * @api public
     */


    Backoff.prototype.reset = function () {
        this.attempts = 0;
    };
    /**
     * Set the minimum duration
     *
     * @api public
     */


    Backoff.prototype.setMin = function (min) {
        this.ms = min;
    };
    /**
     * Set the maximum duration
     *
     * @api public
     */


    Backoff.prototype.setMax = function (max) {
        this.max = max;
    };
    /**
     * Set the jitter
     *
     * @api public
     */


    Backoff.prototype.setJitter = function (jitter) {
        this.jitter = jitter;
    };

    var Manager = /*#__PURE__*/function (_Emitter) {
        _inherits(Manager, _Emitter);

        var _super = _createSuper(Manager);

        function Manager(uri, opts) {
            var _this;

            _classCallCheck(this, Manager);

            var _a;

            _this = _super.call(this);
            _this.nsps = {};
            _this.subs = [];

            if (uri && "object" === _typeof(uri)) {
                opts = uri;
                uri = undefined;
            }

            opts = opts || {};
            opts.path = opts.path || "/socket.io";
            _this.opts = opts;
            installTimerFunctions(_assertThisInitialized(_this), opts);

            _this.reconnection(opts.reconnection !== false);

            _this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);

            _this.reconnectionDelay(opts.reconnectionDelay || 1000);

            _this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);

            _this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);

            _this.backoff = new backo2({
                min: _this.reconnectionDelay(),
                max: _this.reconnectionDelayMax(),
                jitter: _this.randomizationFactor()
            });

            _this.timeout(null == opts.timeout ? 20000 : opts.timeout);

            _this._readyState = "closed";
            _this.uri = uri;

            var _parser = opts.parser || parser;

            _this.encoder = new _parser.Encoder();
            _this.decoder = new _parser.Decoder();
            _this._autoConnect = opts.autoConnect !== false;
            if (_this._autoConnect) _this.open();
            return _this;
        }

        _createClass(Manager, [{
            key: "reconnection",
            value: function reconnection(v) {
                if (!arguments.length) return this._reconnection;
                this._reconnection = !!v;
                return this;
            }
        }, {
            key: "reconnectionAttempts",
            value: function reconnectionAttempts(v) {
                if (v === undefined) return this._reconnectionAttempts;
                this._reconnectionAttempts = v;
                return this;
            }
        }, {
            key: "reconnectionDelay",
            value: function reconnectionDelay(v) {
                var _a;

                if (v === undefined) return this._reconnectionDelay;
                this._reconnectionDelay = v;
                (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);
                return this;
            }
        }, {
            key: "randomizationFactor",
            value: function randomizationFactor(v) {
                var _a;

                if (v === undefined) return this._randomizationFactor;
                this._randomizationFactor = v;
                (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);
                return this;
            }
        }, {
            key: "reconnectionDelayMax",
            value: function reconnectionDelayMax(v) {
                var _a;

                if (v === undefined) return this._reconnectionDelayMax;
                this._reconnectionDelayMax = v;
                (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);
                return this;
            }
        }, {
            key: "timeout",
            value: function timeout(v) {
                if (!arguments.length) return this._timeout;
                this._timeout = v;
                return this;
            }
            /**
             * Starts trying to reconnect if reconnection is enabled and we have not
             * started reconnecting yet
             *
             * @private
             */

        }, {
            key: "maybeReconnectOnOpen",
            value: function maybeReconnectOnOpen() {
                // Only try to reconnect if it's the first time we're connecting
                if (!this._reconnecting && this._reconnection && this.backoff.attempts === 0) {
                    // keeps reconnection from firing twice for the same reconnection loop
                    this.reconnect();
                }
            }
            /**
             * Sets the current transport `socket`.
             *
             * @param {Function} fn - optional, callback
             * @return self
             * @public
             */

        }, {
            key: "open",
            value: function open(fn) {
                var _this2 = this;

                if (~this._readyState.indexOf("open")) return this;
                this.engine = new Socket$1(this.uri, this.opts);
                var socket = this.engine;
                var self = this;
                this._readyState = "opening";
                this.skipReconnect = false; // emit `open`

                var openSubDestroy = on(socket, "open", function () {
                    self.onopen();
                    fn && fn();
                }); // emit `error`

                var errorSub = on(socket, "error", function (err) {
                    self.cleanup();
                    self._readyState = "closed";

                    _this2.emitReserved("error", err);

                    if (fn) {
                        fn(err);
                    } else {
                        // Only do this if there is no fn to handle the error
                        self.maybeReconnectOnOpen();
                    }
                });

                if (false !== this._timeout) {
                    var timeout = this._timeout;

                    if (timeout === 0) {
                        openSubDestroy(); // prevents a race condition with the 'open' event
                    } // set timer


                    var timer = this.setTimeoutFn(function () {
                        openSubDestroy();
                        socket.close(); // @ts-ignore

                        socket.emit("error", new Error("timeout"));
                    }, timeout);

                    if (this.opts.autoUnref) {
                        timer.unref();
                    }

                    this.subs.push(function subDestroy() {
                        clearTimeout(timer);
                    });
                }

                this.subs.push(openSubDestroy);
                this.subs.push(errorSub);
                return this;
            }
            /**
             * Alias for open()
             *
             * @return self
             * @public
             */

        }, {
            key: "connect",
            value: function connect(fn) {
                return this.open(fn);
            }
            /**
             * Called upon transport open.
             *
             * @private
             */

        }, {
            key: "onopen",
            value: function onopen() {
                // clear old subs
                this.cleanup(); // mark as open

                this._readyState = "open";
                this.emitReserved("open"); // add new subs

                var socket = this.engine;
                this.subs.push(on(socket, "ping", this.onping.bind(this)), on(socket, "data", this.ondata.bind(this)), on(socket, "error", this.onerror.bind(this)), on(socket, "close", this.onclose.bind(this)), on(this.decoder, "decoded", this.ondecoded.bind(this)));
            }
            /**
             * Called upon a ping.
             *
             * @private
             */

        }, {
            key: "onping",
            value: function onping() {
                this.emitReserved("ping");
            }
            /**
             * Called with data.
             *
             * @private
             */

        }, {
            key: "ondata",
            value: function ondata(data) {
                this.decoder.add(data);
            }
            /**
             * Called when parser fully decodes a packet.
             *
             * @private
             */

        }, {
            key: "ondecoded",
            value: function ondecoded(packet) {
                this.emitReserved("packet", packet);
            }
            /**
             * Called upon socket error.
             *
             * @private
             */

        }, {
            key: "onerror",
            value: function onerror(err) {
                this.emitReserved("error", err);
            }
            /**
             * Creates a new socket for the given `nsp`.
             *
             * @return {Socket}
             * @public
             */

        }, {
            key: "socket",
            value: function socket(nsp, opts) {
                var socket = this.nsps[nsp];

                if (!socket) {
                    socket = new Socket(this, nsp, opts);
                    this.nsps[nsp] = socket;
                }

                return socket;
            }
            /**
             * Called upon a socket close.
             *
             * @param socket
             * @private
             */

        }, {
            key: "_destroy",
            value: function _destroy(socket) {
                var nsps = Object.keys(this.nsps);

                for (var _i = 0, _nsps = nsps; _i < _nsps.length; _i++) {
                    var nsp = _nsps[_i];
                    var _socket = this.nsps[nsp];

                    if (_socket.active) {
                        return;
                    }
                }

                this._close();
            }
            /**
             * Writes a packet.
             *
             * @param packet
             * @private
             */

        }, {
            key: "_packet",
            value: function _packet(packet) {
                var encodedPackets = this.encoder.encode(packet);

                for (var i = 0; i < encodedPackets.length; i++) {
                    this.engine.write(encodedPackets[i], packet.options);
                }
            }
            /**
             * Clean up transport subscriptions and packet buffer.
             *
             * @private
             */

        }, {
            key: "cleanup",
            value: function cleanup() {
                this.subs.forEach(function (subDestroy) {
                    return subDestroy();
                });
                this.subs.length = 0;
                this.decoder.destroy();
            }
            /**
             * Close the current socket.
             *
             * @private
             */

        }, {
            key: "_close",
            value: function _close() {
                this.skipReconnect = true;
                this._reconnecting = false;
                this.onclose("forced close");
                if (this.engine) this.engine.close();
            }
            /**
             * Alias for close()
             *
             * @private
             */

        }, {
            key: "disconnect",
            value: function disconnect() {
                return this._close();
            }
            /**
             * Called upon engine close.
             *
             * @private
             */

        }, {
            key: "onclose",
            value: function onclose(reason) {
                this.cleanup();
                this.backoff.reset();
                this._readyState = "closed";
                this.emitReserved("close", reason);

                if (this._reconnection && !this.skipReconnect) {
                    this.reconnect();
                }
            }
            /**
             * Attempt a reconnection.
             *
             * @private
             */

        }, {
            key: "reconnect",
            value: function reconnect() {
                var _this3 = this;

                if (this._reconnecting || this.skipReconnect) return this;
                var self = this;

                if (this.backoff.attempts >= this._reconnectionAttempts) {
                    this.backoff.reset();
                    this.emitReserved("reconnect_failed");
                    this._reconnecting = false;
                } else {
                    var delay = this.backoff.duration();
                    this._reconnecting = true;
                    var timer = this.setTimeoutFn(function () {
                        if (self.skipReconnect) return;

                        _this3.emitReserved("reconnect_attempt", self.backoff.attempts); // check again for the case socket closed in above events


                        if (self.skipReconnect) return;
                        self.open(function (err) {
                            if (err) {
                                self._reconnecting = false;
                                self.reconnect();

                                _this3.emitReserved("reconnect_error", err);
                            } else {
                                self.onreconnect();
                            }
                        });
                    }, delay);

                    if (this.opts.autoUnref) {
                        timer.unref();
                    }

                    this.subs.push(function subDestroy() {
                        clearTimeout(timer);
                    });
                }
            }
            /**
             * Called upon successful reconnect.
             *
             * @private
             */

        }, {
            key: "onreconnect",
            value: function onreconnect() {
                var attempt = this.backoff.attempts;
                this._reconnecting = false;
                this.backoff.reset();
                this.emitReserved("reconnect", attempt);
            }
        }]);

        return Manager;
    }(Emitter_1);

    /**
     * Managers cache.
     */

    var cache = {};

    function lookup(uri, opts) {
        if (_typeof(uri) === "object") {
            opts = uri;
            uri = undefined;
        }

        opts = opts || {};
        var parsed = url(uri, opts.path || "/socket.io");
        var source = parsed.source;
        var id = parsed.id;
        var path = parsed.path;
        var sameNamespace = cache[id] && path in cache[id]["nsps"];
        var newConnection = opts.forceNew || opts["force new connection"] || false === opts.multiplex || sameNamespace;
        var io;

        if (newConnection) {
            io = new Manager(source, opts);
        } else {
            if (!cache[id]) {
                cache[id] = new Manager(source, opts);
            }

            io = cache[id];
        }

        if (parsed.query && !opts.query) {
            opts.query = parsed.queryKey;
        }

        return io.socket(parsed.path, opts);
    } // so that "lookup" can be used both as a function (e.g. `io(...)`) and as a
    // namespace (e.g. `io.connect(...)`), for backward compatibility


    _extends(lookup, {
        Manager: Manager,
        Socket: Socket,
        io: lookup,
        connect: lookup
    });

    return lookup;

}));
//# sourceMappingURL=socket.io.js.map


//Included:lib/009.vue-router-v3.5.1.part.js
/*!
  * vue-router v3.5.1
  * (c) 2021 Evan You
  * @license MIT
  */
(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
        typeof define === 'function' && define.amd ? define(factory) :
            (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.VueRouter = factory());
}(this, (function () {
    'use strict';

    /*  */

    function assert(condition, message) {
        if (!condition) {
            throw new Error(("[vue-router] " + message))
        }
    }

    function warn(condition, message) {
        if (!condition) {
            typeof console !== 'undefined' && console.warn(("[vue-router] " + message));
        }
    }

    function extend(a, b) {
        for (var key in b) {
            a[key] = b[key];
        }
        return a
    }

    /*  */

    var encodeReserveRE = /[!'()*]/g;
    var encodeReserveReplacer = function (c) { return '%' + c.charCodeAt(0).toString(16); };
    var commaRE = /%2C/g;

    // fixed encodeURIComponent which is more conformant to RFC3986:
    // - escapes [!'()*]
    // - preserve commas
    var encode = function (str) {
        return encodeURIComponent(str)
            .replace(encodeReserveRE, encodeReserveReplacer)
            .replace(commaRE, ',');
    };

    function decode(str) {
        try {
            return decodeURIComponent(str)
        } catch (err) {
            {
                warn(false, ("Error decoding \"" + str + "\". Leaving it intact."));
            }
        }
        return str
    }

    function resolveQuery(
        query,
        extraQuery,
        _parseQuery
    ) {
        if (extraQuery === void 0) extraQuery = {};

        var parse = _parseQuery || parseQuery;
        var parsedQuery;
        try {
            parsedQuery = parse(query || '');
        } catch (e) {
            warn(false, e.message);
            parsedQuery = {};
        }
        for (var key in extraQuery) {
            var value = extraQuery[key];
            parsedQuery[key] = Array.isArray(value)
                ? value.map(castQueryParamValue)
                : castQueryParamValue(value);
        }
        return parsedQuery
    }

    var castQueryParamValue = function (value) { return (value == null || typeof value === 'object' ? value : String(value)); };

    function parseQuery(query) {
        var res = {};

        query = query.trim().replace(/^(\?|#|&)/, '');

        if (!query) {
            return res
        }

        query.split('&').forEach(function (param) {
            var parts = param.replace(/\+/g, ' ').split('=');
            var key = decode(parts.shift());
            var val = parts.length > 0 ? decode(parts.join('=')) : null;

            if (res[key] === undefined) {
                res[key] = val;
            } else if (Array.isArray(res[key])) {
                res[key].push(val);
            } else {
                res[key] = [res[key], val];
            }
        });

        return res
    }

    function stringifyQuery(obj) {
        var res = obj
            ? Object.keys(obj)
                .map(function (key) {
                    var val = obj[key];

                    if (val === undefined) {
                        return ''
                    }

                    if (val === null) {
                        return encode(key)
                    }

                    if (Array.isArray(val)) {
                        var result = [];
                        val.forEach(function (val2) {
                            if (val2 === undefined) {
                                return
                            }
                            if (val2 === null) {
                                result.push(encode(key));
                            } else {
                                result.push(encode(key) + '=' + encode(val2));
                            }
                        });
                        return result.join('&')
                    }

                    return encode(key) + '=' + encode(val)
                })
                .filter(function (x) { return x.length > 0; })
                .join('&')
            : null;
        return res ? ("?" + res) : ''
    }

    /*  */

    var trailingSlashRE = /\/?$/;

    function createRoute(
        record,
        location,
        redirectedFrom,
        router
    ) {
        var stringifyQuery = router && router.options.stringifyQuery;

        var query = location.query || {};
        try {
            query = clone(query);
        } catch (e) { }

        var route = {
            name: location.name || (record && record.name),
            meta: (record && record.meta) || {},
            path: location.path || '/',
            hash: location.hash || '',
            query: query,
            params: location.params || {},
            fullPath: getFullPath(location, stringifyQuery),
            matched: record ? formatMatch(record) : []
        };
        if (redirectedFrom) {
            route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery);
        }
        return Object.freeze(route)
    }

    function clone(value) {
        if (Array.isArray(value)) {
            return value.map(clone)
        } else if (value && typeof value === 'object') {
            var res = {};
            for (var key in value) {
                res[key] = clone(value[key]);
            }
            return res
        } else {
            return value
        }
    }

    // the starting route that represents the initial state
    var START = createRoute(null, {
        path: '/'
    });

    function formatMatch(record) {
        var res = [];
        while (record) {
            res.unshift(record);
            record = record.parent;
        }
        return res
    }

    function getFullPath(
        ref,
        _stringifyQuery
    ) {
        var path = ref.path;
        var query = ref.query; if (query === void 0) query = {};
        var hash = ref.hash; if (hash === void 0) hash = '';

        var stringify = _stringifyQuery || stringifyQuery;
        return (path || '/') + stringify(query) + hash
    }

    function isSameRoute(a, b, onlyPath) {
        if (b === START) {
            return a === b
        } else if (!b) {
            return false
        } else if (a.path && b.path) {
            return a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') && (onlyPath ||
                a.hash === b.hash &&
                isObjectEqual(a.query, b.query))
        } else if (a.name && b.name) {
            return (
                a.name === b.name &&
                (onlyPath || (
                    a.hash === b.hash &&
                    isObjectEqual(a.query, b.query) &&
                    isObjectEqual(a.params, b.params))
                )
            )
        } else {
            return false
        }
    }

    function isObjectEqual(a, b) {
        if (a === void 0) a = {};
        if (b === void 0) b = {};

        // handle null value #1566
        if (!a || !b) { return a === b }
        var aKeys = Object.keys(a).sort();
        var bKeys = Object.keys(b).sort();
        if (aKeys.length !== bKeys.length) {
            return false
        }
        return aKeys.every(function (key, i) {
            var aVal = a[key];
            var bKey = bKeys[i];
            if (bKey !== key) { return false }
            var bVal = b[key];
            // query values can be null and undefined
            if (aVal == null || bVal == null) { return aVal === bVal }
            // check nested equality
            if (typeof aVal === 'object' && typeof bVal === 'object') {
                return isObjectEqual(aVal, bVal)
            }
            return String(aVal) === String(bVal)
        })
    }

    function isIncludedRoute(current, target) {
        return (
            current.path.replace(trailingSlashRE, '/').indexOf(
                target.path.replace(trailingSlashRE, '/')
            ) === 0 &&
            (!target.hash || current.hash === target.hash) &&
            queryIncludes(current.query, target.query)
        )
    }

    function queryIncludes(current, target) {
        for (var key in target) {
            if (!(key in current)) {
                return false
            }
        }
        return true
    }

    function handleRouteEntered(route) {
        for (var i = 0; i < route.matched.length; i++) {
            var record = route.matched[i];
            for (var name in record.instances) {
                var instance = record.instances[name];
                var cbs = record.enteredCbs[name];
                if (!instance || !cbs) { continue }
                delete record.enteredCbs[name];
                for (var i$1 = 0; i$1 < cbs.length; i$1++) {
                    if (!instance._isBeingDestroyed) { cbs[i$1](instance); }
                }
            }
        }
    }

    var View = {
        name: 'RouterView',
        functional: true,
        props: {
            name: {
                type: String,
                default: 'default'
            }
        },
        render: function render(_, ref) {
            var props = ref.props;
            var children = ref.children;
            var parent = ref.parent;
            var data = ref.data;

            // used by devtools to display a router-view badge
            data.routerView = true;

            // directly use parent context's createElement() function
            // so that components rendered by router-view can resolve named slots
            var h = parent.$createElement;
            var name = props.name;
            var route = parent.$route;
            var cache = parent._routerViewCache || (parent._routerViewCache = {});

            // determine current view depth, also check to see if the tree
            // has been toggled inactive but kept-alive.
            var depth = 0;
            var inactive = false;
            while (parent && parent._routerRoot !== parent) {
                var vnodeData = parent.$vnode ? parent.$vnode.data : {};
                if (vnodeData.routerView) {
                    depth++;
                }
                if (vnodeData.keepAlive && parent._directInactive && parent._inactive) {
                    inactive = true;
                }
                parent = parent.$parent;
            }
            data.routerViewDepth = depth;

            // render previous view if the tree is inactive and kept-alive
            if (inactive) {
                var cachedData = cache[name];
                var cachedComponent = cachedData && cachedData.component;
                if (cachedComponent) {
                    // #2301
                    // pass props
                    if (cachedData.configProps) {
                        fillPropsinData(cachedComponent, data, cachedData.route, cachedData.configProps);
                    }
                    return h(cachedComponent, data, children)
                } else {
                    // render previous empty view
                    return h()
                }
            }

            var matched = route.matched[depth];
            var component = matched && matched.components[name];

            // render empty node if no matched route or no config component
            if (!matched || !component) {
                cache[name] = null;
                return h()
            }

            // cache component
            cache[name] = { component: component };

            // attach instance registration hook
            // this will be called in the instance's injected lifecycle hooks
            data.registerRouteInstance = function (vm, val) {
                // val could be undefined for unregistration
                var current = matched.instances[name];
                if (
                    (val && current !== vm) ||
                    (!val && current === vm)
                ) {
                    matched.instances[name] = val;
                }
            }

                // also register instance in prepatch hook
                // in case the same component instance is reused across different routes
                ; (data.hook || (data.hook = {})).prepatch = function (_, vnode) {
                    matched.instances[name] = vnode.componentInstance;
                };

            // register instance in init hook
            // in case kept-alive component be actived when routes changed
            data.hook.init = function (vnode) {
                if (vnode.data.keepAlive &&
                    vnode.componentInstance &&
                    vnode.componentInstance !== matched.instances[name]
                ) {
                    matched.instances[name] = vnode.componentInstance;
                }

                // if the route transition has already been confirmed then we weren't
                // able to call the cbs during confirmation as the component was not
                // registered yet, so we call it here.
                handleRouteEntered(route);
            };

            var configProps = matched.props && matched.props[name];
            // save route and configProps in cache
            if (configProps) {
                extend(cache[name], {
                    route: route,
                    configProps: configProps
                });
                fillPropsinData(component, data, route, configProps);
            }

            return h(component, data, children)
        }
    };

    function fillPropsinData(component, data, route, configProps) {
        // resolve props
        var propsToPass = data.props = resolveProps(route, configProps);
        if (propsToPass) {
            // clone to prevent mutation
            propsToPass = data.props = extend({}, propsToPass);
            // pass non-declared props as attrs
            var attrs = data.attrs = data.attrs || {};
            for (var key in propsToPass) {
                if (!component.props || !(key in component.props)) {
                    attrs[key] = propsToPass[key];
                    delete propsToPass[key];
                }
            }
        }
    }

    function resolveProps(route, config) {
        switch (typeof config) {
            case 'undefined':
                return
            case 'object':
                return config
            case 'function':
                return config(route)
            case 'boolean':
                return config ? route.params : undefined
            default:
                {
                    warn(
                        false,
                        "props in \"" + (route.path) + "\" is a " + (typeof config) + ", " +
                        "expecting an object, function or boolean."
                    );
                }
        }
    }

    /*  */

    function resolvePath(
        relative,
        base,
        append
    ) {
        var firstChar = relative.charAt(0);
        if (firstChar === '/') {
            return relative
        }

        if (firstChar === '?' || firstChar === '#') {
            return base + relative
        }

        var stack = base.split('/');

        // remove trailing segment if:
        // - not appending
        // - appending to trailing slash (last segment is empty)
        if (!append || !stack[stack.length - 1]) {
            stack.pop();
        }

        // resolve relative path
        var segments = relative.replace(/^\//, '').split('/');
        for (var i = 0; i < segments.length; i++) {
            var segment = segments[i];
            if (segment === '..') {
                stack.pop();
            } else if (segment !== '.') {
                stack.push(segment);
            }
        }

        // ensure leading slash
        if (stack[0] !== '') {
            stack.unshift('');
        }

        return stack.join('/')
    }

    function parsePath(path) {
        var hash = '';
        var query = '';

        var hashIndex = path.indexOf('#');
        if (hashIndex >= 0) {
            hash = path.slice(hashIndex);
            path = path.slice(0, hashIndex);
        }

        var queryIndex = path.indexOf('?');
        if (queryIndex >= 0) {
            query = path.slice(queryIndex + 1);
            path = path.slice(0, queryIndex);
        }

        return {
            path: path,
            query: query,
            hash: hash
        }
    }

    function cleanPath(path) {
        return path.replace(/\/\//g, '/')
    }

    var isarray = Array.isArray || function (arr) {
        return Object.prototype.toString.call(arr) == '[object Array]';
    };

    /**
     * Expose `pathToRegexp`.
     */
    var pathToRegexp_1 = pathToRegexp;
    var parse_1 = parse;
    var compile_1 = compile;
    var tokensToFunction_1 = tokensToFunction;
    var tokensToRegExp_1 = tokensToRegExp;

    /**
     * The main path matching regexp utility.
     *
     * @type {RegExp}
     */
    var PATH_REGEXP = new RegExp([
        // Match escaped characters that would otherwise appear in future matches.
        // This allows the user to escape special characters that won't transform.
        '(\\\\.)',
        // Match Express-style parameters and un-named parameters with a prefix
        // and optional suffixes. Matches appear as:
        //
        // "/:test(\\d+)?" => ["/", "test", "\d+", undefined, "?", undefined]
        // "/route(\\d+)"  => [undefined, undefined, undefined, "\d+", undefined, undefined]
        // "/*"            => ["/", undefined, undefined, undefined, undefined, "*"]
        '([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?|(\\*))'
    ].join('|'), 'g');

    /**
     * Parse a string for the raw tokens.
     *
     * @param  {string}  str
     * @param  {Object=} options
     * @return {!Array}
     */
    function parse(str, options) {
        var tokens = [];
        var key = 0;
        var index = 0;
        var path = '';
        var defaultDelimiter = options && options.delimiter || '/';
        var res;

        while ((res = PATH_REGEXP.exec(str)) != null) {
            var m = res[0];
            var escaped = res[1];
            var offset = res.index;
            path += str.slice(index, offset);
            index = offset + m.length;

            // Ignore already escaped sequences.
            if (escaped) {
                path += escaped[1];
                continue
            }

            var next = str[index];
            var prefix = res[2];
            var name = res[3];
            var capture = res[4];
            var group = res[5];
            var modifier = res[6];
            var asterisk = res[7];

            // Push the current path onto the tokens.
            if (path) {
                tokens.push(path);
                path = '';
            }

            var partial = prefix != null && next != null && next !== prefix;
            var repeat = modifier === '+' || modifier === '*';
            var optional = modifier === '?' || modifier === '*';
            var delimiter = res[2] || defaultDelimiter;
            var pattern = capture || group;

            tokens.push({
                name: name || key++,
                prefix: prefix || '',
                delimiter: delimiter,
                optional: optional,
                repeat: repeat,
                partial: partial,
                asterisk: !!asterisk,
                pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')
            });
        }

        // Match any characters still remaining.
        if (index < str.length) {
            path += str.substr(index);
        }

        // If the path exists, push it onto the end.
        if (path) {
            tokens.push(path);
        }

        return tokens
    }

    /**
     * Compile a string to a template function for the path.
     *
     * @param  {string}             str
     * @param  {Object=}            options
     * @return {!function(Object=, Object=)}
     */
    function compile(str, options) {
        return tokensToFunction(parse(str, options), options)
    }

    /**
     * Prettier encoding of URI path segments.
     *
     * @param  {string}
     * @return {string}
     */
    function encodeURIComponentPretty(str) {
        return encodeURI(str).replace(/[\/?#]/g, function (c) {
            return '%' + c.charCodeAt(0).toString(16).toUpperCase()
        })
    }

    /**
     * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.
     *
     * @param  {string}
     * @return {string}
     */
    function encodeAsterisk(str) {
        return encodeURI(str).replace(/[?#]/g, function (c) {
            return '%' + c.charCodeAt(0).toString(16).toUpperCase()
        })
    }

    /**
     * Expose a method for transforming tokens into the path function.
     */
    function tokensToFunction(tokens, options) {
        // Compile all the tokens into regexps.
        var matches = new Array(tokens.length);

        // Compile all the patterns before compilation.
        for (var i = 0; i < tokens.length; i++) {
            if (typeof tokens[i] === 'object') {
                matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$', flags(options));
            }
        }

        return function (obj, opts) {
            var path = '';
            var data = obj || {};
            var options = opts || {};
            var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent;

            for (var i = 0; i < tokens.length; i++) {
                var token = tokens[i];

                if (typeof token === 'string') {
                    path += token;

                    continue
                }

                var value = data[token.name];
                var segment;

                if (value == null) {
                    if (token.optional) {
                        // Prepend partial segment prefixes.
                        if (token.partial) {
                            path += token.prefix;
                        }

                        continue
                    } else {
                        throw new TypeError('Expected "' + token.name + '" to be defined')
                    }
                }

                if (isarray(value)) {
                    if (!token.repeat) {
                        throw new TypeError('Expected "' + token.name + '" to not repeat, but received `' + JSON.stringify(value) + '`')
                    }

                    if (value.length === 0) {
                        if (token.optional) {
                            continue
                        } else {
                            throw new TypeError('Expected "' + token.name + '" to not be empty')
                        }
                    }

                    for (var j = 0; j < value.length; j++) {
                        segment = encode(value[j]);

                        if (!matches[i].test(segment)) {
                            throw new TypeError('Expected all "' + token.name + '" to match "' + token.pattern + '", but received `' + JSON.stringify(segment) + '`')
                        }

                        path += (j === 0 ? token.prefix : token.delimiter) + segment;
                    }

                    continue
                }

                segment = token.asterisk ? encodeAsterisk(value) : encode(value);

                if (!matches[i].test(segment)) {
                    throw new TypeError('Expected "' + token.name + '" to match "' + token.pattern + '", but received "' + segment + '"')
                }

                path += token.prefix + segment;
            }

            return path
        }
    }

    /**
     * Escape a regular expression string.
     *
     * @param  {string} str
     * @return {string}
     */
    function escapeString(str) {
        return str.replace(/([.+*?=^!:${}()[\]|\/\\])/g, '\\$1')
    }

    /**
     * Escape the capturing group by escaping special characters and meaning.
     *
     * @param  {string} group
     * @return {string}
     */
    function escapeGroup(group) {
        return group.replace(/([=!:$\/()])/g, '\\$1')
    }

    /**
     * Attach the keys as a property of the regexp.
     *
     * @param  {!RegExp} re
     * @param  {Array}   keys
     * @return {!RegExp}
     */
    function attachKeys(re, keys) {
        re.keys = keys;
        return re
    }

    /**
     * Get the flags for a regexp from the options.
     *
     * @param  {Object} options
     * @return {string}
     */
    function flags(options) {
        return options && options.sensitive ? '' : 'i'
    }

    /**
     * Pull out keys from a regexp.
     *
     * @param  {!RegExp} path
     * @param  {!Array}  keys
     * @return {!RegExp}
     */
    function regexpToRegexp(path, keys) {
        // Use a negative lookahead to match only capturing groups.
        var groups = path.source.match(/\((?!\?)/g);

        if (groups) {
            for (var i = 0; i < groups.length; i++) {
                keys.push({
                    name: i,
                    prefix: null,
                    delimiter: null,
                    optional: false,
                    repeat: false,
                    partial: false,
                    asterisk: false,
                    pattern: null
                });
            }
        }

        return attachKeys(path, keys)
    }

    /**
     * Transform an array into a regexp.
     *
     * @param  {!Array}  path
     * @param  {Array}   keys
     * @param  {!Object} options
     * @return {!RegExp}
     */
    function arrayToRegexp(path, keys, options) {
        var parts = [];

        for (var i = 0; i < path.length; i++) {
            parts.push(pathToRegexp(path[i], keys, options).source);
        }

        var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options));

        return attachKeys(regexp, keys)
    }

    /**
     * Create a path regexp from string input.
     *
     * @param  {string}  path
     * @param  {!Array}  keys
     * @param  {!Object} options
     * @return {!RegExp}
     */
    function stringToRegexp(path, keys, options) {
        return tokensToRegExp(parse(path, options), keys, options)
    }

    /**
     * Expose a function for taking tokens and returning a RegExp.
     *
     * @param  {!Array}          tokens
     * @param  {(Array|Object)=} keys
     * @param  {Object=}         options
     * @return {!RegExp}
     */
    function tokensToRegExp(tokens, keys, options) {
        if (!isarray(keys)) {
            options = /** @type {!Object} */ (keys || options);
            keys = [];
        }

        options = options || {};

        var strict = options.strict;
        var end = options.end !== false;
        var route = '';

        // Iterate over the tokens and create our regexp string.
        for (var i = 0; i < tokens.length; i++) {
            var token = tokens[i];

            if (typeof token === 'string') {
                route += escapeString(token);
            } else {
                var prefix = escapeString(token.prefix);
                var capture = '(?:' + token.pattern + ')';

                keys.push(token);

                if (token.repeat) {
                    capture += '(?:' + prefix + capture + ')*';
                }

                if (token.optional) {
                    if (!token.partial) {
                        capture = '(?:' + prefix + '(' + capture + '))?';
                    } else {
                        capture = prefix + '(' + capture + ')?';
                    }
                } else {
                    capture = prefix + '(' + capture + ')';
                }

                route += capture;
            }
        }

        var delimiter = escapeString(options.delimiter || '/');
        var endsWithDelimiter = route.slice(-delimiter.length) === delimiter;

        // In non-strict mode we allow a slash at the end of match. If the path to
        // match already ends with a slash, we remove it for consistency. The slash
        // is valid at the end of a path match, not in the middle. This is important
        // in non-ending mode, where "/test/" shouldn't match "/test//route".
        if (!strict) {
            route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?';
        }

        if (end) {
            route += '$';
        } else {
            // In non-ending mode, we need the capturing groups to match as much as
            // possible by using a positive lookahead to the end or next path segment.
            route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)';
        }

        return attachKeys(new RegExp('^' + route, flags(options)), keys)
    }

    /**
     * Normalize the given path string, returning a regular expression.
     *
     * An empty array can be passed in for the keys, which will hold the
     * placeholder key descriptions. For example, using `/user/:id`, `keys` will
     * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
     *
     * @param  {(string|RegExp|Array)} path
     * @param  {(Array|Object)=}       keys
     * @param  {Object=}               options
     * @return {!RegExp}
     */
    function pathToRegexp(path, keys, options) {
        if (!isarray(keys)) {
            options = /** @type {!Object} */ (keys || options);
            keys = [];
        }

        options = options || {};

        if (path instanceof RegExp) {
            return regexpToRegexp(path, /** @type {!Array} */(keys))
        }

        if (isarray(path)) {
            return arrayToRegexp(/** @type {!Array} */(path), /** @type {!Array} */(keys), options)
        }

        return stringToRegexp(/** @type {string} */(path), /** @type {!Array} */(keys), options)
    }
    pathToRegexp_1.parse = parse_1;
    pathToRegexp_1.compile = compile_1;
    pathToRegexp_1.tokensToFunction = tokensToFunction_1;
    pathToRegexp_1.tokensToRegExp = tokensToRegExp_1;

    /*  */

    // $flow-disable-line
    var regexpCompileCache = Object.create(null);

    function fillParams(
        path,
        params,
        routeMsg
    ) {
        params = params || {};
        try {
            var filler =
                regexpCompileCache[path] ||
                (regexpCompileCache[path] = pathToRegexp_1.compile(path));

            // Fix #2505 resolving asterisk routes { name: 'not-found', params: { pathMatch: '/not-found' }}
            // and fix #3106 so that you can work with location descriptor object having params.pathMatch equal to empty string
            if (typeof params.pathMatch === 'string') { params[0] = params.pathMatch; }

            return filler(params, { pretty: true })
        } catch (e) {
            {
                // Fix #3072 no warn if `pathMatch` is string
                warn(typeof params.pathMatch === 'string', ("missing param for " + routeMsg + ": " + (e.message)));
            }
            return ''
        } finally {
            // delete the 0 if it was added
            delete params[0];
        }
    }

    /*  */

    function normalizeLocation(
        raw,
        current,
        append,
        router
    ) {
        var next = typeof raw === 'string' ? { path: raw } : raw;
        // named target
        if (next._normalized) {
            return next
        } else if (next.name) {
            next = extend({}, raw);
            var params = next.params;
            if (params && typeof params === 'object') {
                next.params = extend({}, params);
            }
            return next
        }

        // relative params
        if (!next.path && next.params && current) {
            next = extend({}, next);
            next._normalized = true;
            var params$1 = extend(extend({}, current.params), next.params);
            if (current.name) {
                next.name = current.name;
                next.params = params$1;
            } else if (current.matched.length) {
                var rawPath = current.matched[current.matched.length - 1].path;
                next.path = fillParams(rawPath, params$1, ("path " + (current.path)));
            } else {
                warn(false, "relative params navigation requires a current route.");
            }
            return next
        }

        var parsedPath = parsePath(next.path || '');
        var basePath = (current && current.path) || '/';
        var path = parsedPath.path
            ? resolvePath(parsedPath.path, basePath, append || next.append)
            : basePath;

        var query = resolveQuery(
            parsedPath.query,
            next.query,
            router && router.options.parseQuery
        );

        var hash = next.hash || parsedPath.hash;
        if (hash && hash.charAt(0) !== '#') {
            hash = "#" + hash;
        }

        return {
            _normalized: true,
            path: path,
            query: query,
            hash: hash
        }
    }

    /*  */

    // work around weird flow bug
    var toTypes = [String, Object];
    var eventTypes = [String, Array];

    var noop = function () { };

    var warnedCustomSlot;
    var warnedTagProp;
    var warnedEventProp;

    var Link = {
        name: 'RouterLink',
        props: {
            to: {
                type: toTypes,
                required: true
            },
            tag: {
                type: String,
                default: 'a'
            },
            custom: Boolean,
            exact: Boolean,
            exactPath: Boolean,
            append: Boolean,
            replace: Boolean,
            activeClass: String,
            exactActiveClass: String,
            ariaCurrentValue: {
                type: String,
                default: 'page'
            },
            event: {
                type: eventTypes,
                default: 'click'
            }
        },
        render: function render(h) {
            var this$1 = this;

            var router = this.$router;
            var current = this.$route;
            var ref = router.resolve(
                this.to,
                current,
                this.append
            );
            var location = ref.location;
            var route = ref.route;
            var href = ref.href;

            var classes = {};
            var globalActiveClass = router.options.linkActiveClass;
            var globalExactActiveClass = router.options.linkExactActiveClass;
            // Support global empty active class
            var activeClassFallback =
                globalActiveClass == null ? 'router-link-active' : globalActiveClass;
            var exactActiveClassFallback =
                globalExactActiveClass == null
                    ? 'router-link-exact-active'
                    : globalExactActiveClass;
            var activeClass =
                this.activeClass == null ? activeClassFallback : this.activeClass;
            var exactActiveClass =
                this.exactActiveClass == null
                    ? exactActiveClassFallback
                    : this.exactActiveClass;

            var compareTarget = route.redirectedFrom
                ? createRoute(null, normalizeLocation(route.redirectedFrom), null, router)
                : route;

            classes[exactActiveClass] = isSameRoute(current, compareTarget, this.exactPath);
            classes[activeClass] = this.exact || this.exactPath
                ? classes[exactActiveClass]
                : isIncludedRoute(current, compareTarget);

            var ariaCurrentValue = classes[exactActiveClass] ? this.ariaCurrentValue : null;

            var handler = function (e) {
                if (guardEvent(e)) {
                    if (this$1.replace) {
                        router.replace(location, noop);
                    } else {
                        router.push(location, noop);
                    }
                }
            };

            var on = { click: guardEvent };
            if (Array.isArray(this.event)) {
                this.event.forEach(function (e) {
                    on[e] = handler;
                });
            } else {
                on[this.event] = handler;
            }

            var data = { class: classes };

            var scopedSlot =
                !this.$scopedSlots.$hasNormal &&
                this.$scopedSlots.default &&
                this.$scopedSlots.default({
                    href: href,
                    route: route,
                    navigate: handler,
                    isActive: classes[activeClass],
                    isExactActive: classes[exactActiveClass]
                });

            if (scopedSlot) {
                if (!this.custom) {
                    !warnedCustomSlot && warn(false, 'In Vue Router 4, the v-slot API will by default wrap its content with an <a> element. Use the custom prop to remove this warning:\n<router-link v-slot="{ navigate, href }" custom></router-link>\n');
                    warnedCustomSlot = true;
                }
                if (scopedSlot.length === 1) {
                    return scopedSlot[0]
                } else if (scopedSlot.length > 1 || !scopedSlot.length) {
                    {
                        warn(
                            false,
                            ("<router-link> with to=\"" + (this.to) + "\" is trying to use a scoped slot but it didn't provide exactly one child. Wrapping the content with a span element.")
                        );
                    }
                    return scopedSlot.length === 0 ? h() : h('span', {}, scopedSlot)
                }
            }

            {
                if ('tag' in this.$options.propsData && !warnedTagProp) {
                    warn(
                        false,
                        "<router-link>'s tag prop is deprecated and has been removed in Vue Router 4. Use the v-slot API to remove this warning: https://next.router.vuejs.org/guide/migration/#removal-of-event-and-tag-props-in-router-link."
                    );
                    warnedTagProp = true;
                }
                if ('event' in this.$options.propsData && !warnedEventProp) {
                    warn(
                        false,
                        "<router-link>'s event prop is deprecated and has been removed in Vue Router 4. Use the v-slot API to remove this warning: https://next.router.vuejs.org/guide/migration/#removal-of-event-and-tag-props-in-router-link."
                    );
                    warnedEventProp = true;
                }
            }

            if (this.tag === 'a') {
                data.on = on;
                data.attrs = { href: href, 'aria-current': ariaCurrentValue };
            } else {
                // find the first <a> child and apply listener and href
                var a = findAnchor(this.$slots.default);
                if (a) {
                    // in case the <a> is a static node
                    a.isStatic = false;
                    var aData = (a.data = extend({}, a.data));
                    aData.on = aData.on || {};
                    // transform existing events in both objects into arrays so we can push later
                    for (var event in aData.on) {
                        var handler$1 = aData.on[event];
                        if (event in on) {
                            aData.on[event] = Array.isArray(handler$1) ? handler$1 : [handler$1];
                        }
                    }
                    // append new listeners for router-link
                    for (var event$1 in on) {
                        if (event$1 in aData.on) {
                            // on[event] is always a function
                            aData.on[event$1].push(on[event$1]);
                        } else {
                            aData.on[event$1] = handler;
                        }
                    }

                    var aAttrs = (a.data.attrs = extend({}, a.data.attrs));
                    aAttrs.href = href;
                    aAttrs['aria-current'] = ariaCurrentValue;
                } else {
                    // doesn't have <a> child, apply listener to self
                    data.on = on;
                }
            }

            return h(this.tag, data, this.$slots.default)
        }
    };

    function guardEvent(e) {
        // don't redirect with control keys
        if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey) { return }
        // don't redirect when preventDefault called
        if (e.defaultPrevented) { return }
        // don't redirect on right click
        if (e.button !== undefined && e.button !== 0) { return }
        // don't redirect if `target="_blank"`
        if (e.currentTarget && e.currentTarget.getAttribute) {
            var target = e.currentTarget.getAttribute('target');
            if (/\b_blank\b/i.test(target)) { return }
        }
        // this may be a Weex event which doesn't have this method
        if (e.preventDefault) {
            e.preventDefault();
        }
        return true
    }

    function findAnchor(children) {
        if (children) {
            var child;
            for (var i = 0; i < children.length; i++) {
                child = children[i];
                if (child.tag === 'a') {
                    return child
                }
                if (child.children && (child = findAnchor(child.children))) {
                    return child
                }
            }
        }
    }

    var _Vue;

    function install(Vue) {
        if (install.installed && _Vue === Vue) { return }
        install.installed = true;

        _Vue = Vue;

        var isDef = function (v) { return v !== undefined; };

        var registerInstance = function (vm, callVal) {
            var i = vm.$options._parentVnode;
            if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {
                i(vm, callVal);
            }
        };

        Vue.mixin({
            beforeCreate: function beforeCreate() {
                if (isDef(this.$options.router)) {
                    this._routerRoot = this;
                    this._router = this.$options.router;
                    this._router.init(this);
                    Vue.util.defineReactive(this, '_route', this._router.history.current);
                } else {
                    this._routerRoot = (this.$parent && this.$parent._routerRoot) || this;
                }
                registerInstance(this, this);
            },
            destroyed: function destroyed() {
                registerInstance(this);
            }
        });

        Object.defineProperty(Vue.prototype, '$router', {
            get: function get() { return this._routerRoot._router }
        });

        Object.defineProperty(Vue.prototype, '$route', {
            get: function get() { return this._routerRoot._route }
        });

        Vue.component('RouterView', View);
        Vue.component('RouterLink', Link);

        var strats = Vue.config.optionMergeStrategies;
        // use the same hook merging strategy for route hooks
        strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created;
    }

    /*  */

    var inBrowser = typeof window !== 'undefined';

    /*  */

    function createRouteMap(
        routes,
        oldPathList,
        oldPathMap,
        oldNameMap,
        parentRoute
    ) {
        // the path list is used to control path matching priority
        var pathList = oldPathList || [];
        // $flow-disable-line
        var pathMap = oldPathMap || Object.create(null);
        // $flow-disable-line
        var nameMap = oldNameMap || Object.create(null);

        routes.forEach(function (route) {
            addRouteRecord(pathList, pathMap, nameMap, route, parentRoute);
        });

        // ensure wildcard routes are always at the end
        for (var i = 0, l = pathList.length; i < l; i++) {
            if (pathList[i] === '*') {
                pathList.push(pathList.splice(i, 1)[0]);
                l--;
                i--;
            }
        }

        {
            // warn if routes do not include leading slashes
            var found = pathList
                // check for missing leading slash
                .filter(function (path) { return path && path.charAt(0) !== '*' && path.charAt(0) !== '/'; });

            if (found.length > 0) {
                var pathNames = found.map(function (path) { return ("- " + path); }).join('\n');
                warn(false, ("Non-nested routes must include a leading slash character. Fix the following routes: \n" + pathNames));
            }
        }

        return {
            pathList: pathList,
            pathMap: pathMap,
            nameMap: nameMap
        }
    }

    function addRouteRecord(
        pathList,
        pathMap,
        nameMap,
        route,
        parent,
        matchAs
    ) {
        var path = route.path;
        var name = route.name;
        {
            assert(path != null, "\"path\" is required in a route configuration.");
            assert(
                typeof route.component !== 'string',
                "route config \"component\" for path: " + (String(
                    path || name
                )) + " cannot be a " + "string id. Use an actual component instead."
            );

            warn(
                // eslint-disable-next-line no-control-regex
                !/[^\u0000-\u007F]+/.test(path),
                "Route with path \"" + path + "\" contains unencoded characters, make sure " +
                "your path is correctly encoded before passing it to the router. Use " +
                "encodeURI to encode static segments of your path."
            );
        }

        var pathToRegexpOptions =
            route.pathToRegexpOptions || {};
        var normalizedPath = normalizePath(path, parent, pathToRegexpOptions.strict);

        if (typeof route.caseSensitive === 'boolean') {
            pathToRegexpOptions.sensitive = route.caseSensitive;
        }

        var record = {
            path: normalizedPath,
            regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),
            components: route.components || { default: route.component },
            alias: route.alias
                ? typeof route.alias === 'string'
                    ? [route.alias]
                    : route.alias
                : [],
            instances: {},
            enteredCbs: {},
            name: name,
            parent: parent,
            matchAs: matchAs,
            redirect: route.redirect,
            beforeEnter: route.beforeEnter,
            meta: route.meta || {},
            props:
                route.props == null
                    ? {}
                    : route.components
                        ? route.props
                        : { default: route.props }
        };

        if (route.children) {
            // Warn if route is named, does not redirect and has a default child route.
            // If users navigate to this route by name, the default child will
            // not be rendered (GH Issue #629)
            {
                if (
                    route.name &&
                    !route.redirect &&
                    route.children.some(function (child) { return /^\/?$/.test(child.path); })
                ) {
                    warn(
                        false,
                        "Named Route '" + (route.name) + "' has a default child route. " +
                        "When navigating to this named route (:to=\"{name: '" + (route.name) + "'\"), " +
                        "the default child route will not be rendered. Remove the name from " +
                        "this route and use the name of the default child route for named " +
                        "links instead."
                    );
                }
            }
            route.children.forEach(function (child) {
                var childMatchAs = matchAs
                    ? cleanPath((matchAs + "/" + (child.path)))
                    : undefined;
                addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs);
            });
        }

        if (!pathMap[record.path]) {
            pathList.push(record.path);
            pathMap[record.path] = record;
        }

        if (route.alias !== undefined) {
            var aliases = Array.isArray(route.alias) ? route.alias : [route.alias];
            for (var i = 0; i < aliases.length; ++i) {
                var alias = aliases[i];
                if (alias === path) {
                    warn(
                        false,
                        ("Found an alias with the same value as the path: \"" + path + "\". You have to remove that alias. It will be ignored in development.")
                    );
                    // skip in dev to make it work
                    continue
                }

                var aliasRoute = {
                    path: alias,
                    children: route.children
                };
                addRouteRecord(
                    pathList,
                    pathMap,
                    nameMap,
                    aliasRoute,
                    parent,
                    record.path || '/' // matchAs
                );
            }
        }

        if (name) {
            if (!nameMap[name]) {
                nameMap[name] = record;
            } else if (!matchAs) {
                warn(
                    false,
                    "Duplicate named routes definition: " +
                    "{ name: \"" + name + "\", path: \"" + (record.path) + "\" }"
                );
            }
        }
    }

    function compileRouteRegex(
        path,
        pathToRegexpOptions
    ) {
        var regex = pathToRegexp_1(path, [], pathToRegexpOptions);
        {
            var keys = Object.create(null);
            regex.keys.forEach(function (key) {
                warn(
                    !keys[key.name],
                    ("Duplicate param keys in route with path: \"" + path + "\"")
                );
                keys[key.name] = true;
            });
        }
        return regex
    }

    function normalizePath(
        path,
        parent,
        strict
    ) {
        if (!strict) { path = path.replace(/\/$/, ''); }
        if (path[0] === '/') { return path }
        if (parent == null) { return path }
        return cleanPath(((parent.path) + "/" + path))
    }

    /*  */



    function createMatcher(
        routes,
        router
    ) {
        var ref = createRouteMap(routes);
        var pathList = ref.pathList;
        var pathMap = ref.pathMap;
        var nameMap = ref.nameMap;

        function addRoutes(routes) {
            createRouteMap(routes, pathList, pathMap, nameMap);
        }

        function addRoute(parentOrRoute, route) {
            var parent = (typeof parentOrRoute !== 'object') ? nameMap[parentOrRoute] : undefined;
            // $flow-disable-line
            createRouteMap([route || parentOrRoute], pathList, pathMap, nameMap, parent);

            // add aliases of parent
            if (parent) {
                createRouteMap(
                    // $flow-disable-line route is defined if parent is
                    parent.alias.map(function (alias) { return ({ path: alias, children: [route] }); }),
                    pathList,
                    pathMap,
                    nameMap,
                    parent
                );
            }
        }

        function getRoutes() {
            return pathList.map(function (path) { return pathMap[path]; })
        }

        function match(
            raw,
            currentRoute,
            redirectedFrom
        ) {
            var location = normalizeLocation(raw, currentRoute, false, router);
            var name = location.name;

            if (name) {
                var record = nameMap[name];
                {
                    warn(record, ("Route with name '" + name + "' does not exist"));
                }
                if (!record) { return _createRoute(null, location) }
                var paramNames = record.regex.keys
                    .filter(function (key) { return !key.optional; })
                    .map(function (key) { return key.name; });

                if (typeof location.params !== 'object') {
                    location.params = {};
                }

                if (currentRoute && typeof currentRoute.params === 'object') {
                    for (var key in currentRoute.params) {
                        if (!(key in location.params) && paramNames.indexOf(key) > -1) {
                            location.params[key] = currentRoute.params[key];
                        }
                    }
                }

                location.path = fillParams(record.path, location.params, ("named route \"" + name + "\""));
                return _createRoute(record, location, redirectedFrom)
            } else if (location.path) {
                location.params = {};
                for (var i = 0; i < pathList.length; i++) {
                    var path = pathList[i];
                    var record$1 = pathMap[path];
                    if (matchRoute(record$1.regex, location.path, location.params)) {
                        return _createRoute(record$1, location, redirectedFrom)
                    }
                }
            }
            // no match
            return _createRoute(null, location)
        }

        function redirect(
            record,
            location
        ) {
            var originalRedirect = record.redirect;
            var redirect = typeof originalRedirect === 'function'
                ? originalRedirect(createRoute(record, location, null, router))
                : originalRedirect;

            if (typeof redirect === 'string') {
                redirect = { path: redirect };
            }

            if (!redirect || typeof redirect !== 'object') {
                {
                    warn(
                        false, ("invalid redirect option: " + (JSON.stringify(redirect)))
                    );
                }
                return _createRoute(null, location)
            }

            var re = redirect;
            var name = re.name;
            var path = re.path;
            var query = location.query;
            var hash = location.hash;
            var params = location.params;
            query = re.hasOwnProperty('query') ? re.query : query;
            hash = re.hasOwnProperty('hash') ? re.hash : hash;
            params = re.hasOwnProperty('params') ? re.params : params;

            if (name) {
                // resolved named direct
                var targetRecord = nameMap[name];
                {
                    assert(targetRecord, ("redirect failed: named route \"" + name + "\" not found."));
                }
                return match({
                    _normalized: true,
                    name: name,
                    query: query,
                    hash: hash,
                    params: params
                }, undefined, location)
            } else if (path) {
                // 1. resolve relative redirect
                var rawPath = resolveRecordPath(path, record);
                // 2. resolve params
                var resolvedPath = fillParams(rawPath, params, ("redirect route with path \"" + rawPath + "\""));
                // 3. rematch with existing query and hash
                return match({
                    _normalized: true,
                    path: resolvedPath,
                    query: query,
                    hash: hash
                }, undefined, location)
            } else {
                {
                    warn(false, ("invalid redirect option: " + (JSON.stringify(redirect))));
                }
                return _createRoute(null, location)
            }
        }

        function alias(
            record,
            location,
            matchAs
        ) {
            var aliasedPath = fillParams(matchAs, location.params, ("aliased route with path \"" + matchAs + "\""));
            var aliasedMatch = match({
                _normalized: true,
                path: aliasedPath
            });
            if (aliasedMatch) {
                var matched = aliasedMatch.matched;
                var aliasedRecord = matched[matched.length - 1];
                location.params = aliasedMatch.params;
                return _createRoute(aliasedRecord, location)
            }
            return _createRoute(null, location)
        }

        function _createRoute(
            record,
            location,
            redirectedFrom
        ) {
            if (record && record.redirect) {
                return redirect(record, redirectedFrom || location)
            }
            if (record && record.matchAs) {
                return alias(record, location, record.matchAs)
            }
            return createRoute(record, location, redirectedFrom, router)
        }

        return {
            match: match,
            addRoute: addRoute,
            getRoutes: getRoutes,
            addRoutes: addRoutes
        }
    }

    function matchRoute(
        regex,
        path,
        params
    ) {
        var m = path.match(regex);

        if (!m) {
            return false
        } else if (!params) {
            return true
        }

        for (var i = 1, len = m.length; i < len; ++i) {
            var key = regex.keys[i - 1];
            if (key) {
                // Fix #1994: using * with props: true generates a param named 0
                params[key.name || 'pathMatch'] = typeof m[i] === 'string' ? decode(m[i]) : m[i];
            }
        }

        return true
    }

    function resolveRecordPath(path, record) {
        return resolvePath(path, record.parent ? record.parent.path : '/', true)
    }

    /*  */

    // use User Timing api (if present) for more accurate key precision
    var Time =
        inBrowser && window.performance && window.performance.now
            ? window.performance
            : Date;

    function genStateKey() {
        return Time.now().toFixed(3)
    }

    var _key = genStateKey();

    function getStateKey() {
        return _key
    }

    function setStateKey(key) {
        return (_key = key)
    }

    /*  */

    var positionStore = Object.create(null);

    function setupScroll() {
        // Prevent browser scroll behavior on History popstate
        if ('scrollRestoration' in window.history) {
            window.history.scrollRestoration = 'manual';
        }
        // Fix for #1585 for Firefox
        // Fix for #2195 Add optional third attribute to workaround a bug in safari https://bugs.webkit.org/show_bug.cgi?id=182678
        // Fix for #2774 Support for apps loaded from Windows file shares not mapped to network drives: replaced location.origin with
        // window.location.protocol + '//' + window.location.host
        // location.host contains the port and location.hostname doesn't
        var protocolAndPath = window.location.protocol + '//' + window.location.host;
        var absolutePath = window.location.href.replace(protocolAndPath, '');
        // preserve existing history state as it could be overriden by the user
        var stateCopy = extend({}, window.history.state);
        stateCopy.key = getStateKey();
        window.history.replaceState(stateCopy, '', absolutePath);
        window.addEventListener('popstate', handlePopState);
        return function () {
            window.removeEventListener('popstate', handlePopState);
        }
    }

    function handleScroll(
        router,
        to,
        from,
        isPop
    ) {
        if (!router.app) {
            return
        }

        var behavior = router.options.scrollBehavior;
        if (!behavior) {
            return
        }

        {
            assert(typeof behavior === 'function', "scrollBehavior must be a function");
        }

        // wait until re-render finishes before scrolling
        router.app.$nextTick(function () {
            var position = getScrollPosition();
            var shouldScroll = behavior.call(
                router,
                to,
                from,
                isPop ? position : null
            );

            if (!shouldScroll) {
                return
            }

            if (typeof shouldScroll.then === 'function') {
                shouldScroll
                    .then(function (shouldScroll) {
                        scrollToPosition((shouldScroll), position);
                    })
                    .catch(function (err) {
                        {
                            assert(false, err.toString());
                        }
                    });
            } else {
                scrollToPosition(shouldScroll, position);
            }
        });
    }

    function saveScrollPosition() {
        var key = getStateKey();
        if (key) {
            positionStore[key] = {
                x: window.pageXOffset,
                y: window.pageYOffset
            };
        }
    }

    function handlePopState(e) {
        saveScrollPosition();
        if (e.state && e.state.key) {
            setStateKey(e.state.key);
        }
    }

    function getScrollPosition() {
        var key = getStateKey();
        if (key) {
            return positionStore[key]
        }
    }

    function getElementPosition(el, offset) {
        var docEl = document.documentElement;
        var docRect = docEl.getBoundingClientRect();
        var elRect = el.getBoundingClientRect();
        return {
            x: elRect.left - docRect.left - offset.x,
            y: elRect.top - docRect.top - offset.y
        }
    }

    function isValidPosition(obj) {
        return isNumber(obj.x) || isNumber(obj.y)
    }

    function normalizePosition(obj) {
        return {
            x: isNumber(obj.x) ? obj.x : window.pageXOffset,
            y: isNumber(obj.y) ? obj.y : window.pageYOffset
        }
    }

    function normalizeOffset(obj) {
        return {
            x: isNumber(obj.x) ? obj.x : 0,
            y: isNumber(obj.y) ? obj.y : 0
        }
    }

    function isNumber(v) {
        return typeof v === 'number'
    }

    var hashStartsWithNumberRE = /^#\d/;

    function scrollToPosition(shouldScroll, position) {
        var isObject = typeof shouldScroll === 'object';
        if (isObject && typeof shouldScroll.selector === 'string') {
            // getElementById would still fail if the selector contains a more complicated query like #main[data-attr]
            // but at the same time, it doesn't make much sense to select an element with an id and an extra selector
            var el = hashStartsWithNumberRE.test(shouldScroll.selector) // $flow-disable-line
                ? document.getElementById(shouldScroll.selector.slice(1)) // $flow-disable-line
                : document.querySelector(shouldScroll.selector);

            if (el) {
                var offset =
                    shouldScroll.offset && typeof shouldScroll.offset === 'object'
                        ? shouldScroll.offset
                        : {};
                offset = normalizeOffset(offset);
                position = getElementPosition(el, offset);
            } else if (isValidPosition(shouldScroll)) {
                position = normalizePosition(shouldScroll);
            }
        } else if (isObject && isValidPosition(shouldScroll)) {
            position = normalizePosition(shouldScroll);
        }

        if (position) {
            // $flow-disable-line
            if ('scrollBehavior' in document.documentElement.style) {
                window.scrollTo({
                    left: position.x,
                    top: position.y,
                    // $flow-disable-line
                    behavior: shouldScroll.behavior
                });
            } else {
                window.scrollTo(position.x, position.y);
            }
        }
    }

    /*  */

    var supportsPushState =
        inBrowser &&
        (function () {
            var ua = window.navigator.userAgent;

            if (
                (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&
                ua.indexOf('Mobile Safari') !== -1 &&
                ua.indexOf('Chrome') === -1 &&
                ua.indexOf('Windows Phone') === -1
            ) {
                return false
            }

            return window.history && typeof window.history.pushState === 'function'
        })();

    function pushState(url, replace) {
        saveScrollPosition();
        // try...catch the pushState call to get around Safari
        // DOM Exception 18 where it limits to 100 pushState calls
        var history = window.history;
        try {
            if (replace) {
                // preserve existing history state as it could be overriden by the user
                var stateCopy = extend({}, history.state);
                stateCopy.key = getStateKey();
                history.replaceState(stateCopy, '', url);
            } else {
                history.pushState({ key: setStateKey(genStateKey()) }, '', url);
            }
        } catch (e) {
            window.location[replace ? 'replace' : 'assign'](url);
        }
    }

    function replaceState(url) {
        pushState(url, true);
    }

    /*  */

    function runQueue(queue, fn, cb) {
        var step = function (index) {
            if (index >= queue.length) {
                cb();
            } else {
                if (queue[index]) {
                    fn(queue[index], function () {
                        step(index + 1);
                    });
                } else {
                    step(index + 1);
                }
            }
        };
        step(0);
    }

    // When changing thing, also edit router.d.ts
    var NavigationFailureType = {
        redirected: 2,
        aborted: 4,
        cancelled: 8,
        duplicated: 16
    };

    function createNavigationRedirectedError(from, to) {
        return createRouterError(
            from,
            to,
            NavigationFailureType.redirected,
            ("Redirected when going from \"" + (from.fullPath) + "\" to \"" + (stringifyRoute(
                to
            )) + "\" via a navigation guard.")
        )
    }

    function createNavigationDuplicatedError(from, to) {
        var error = createRouterError(
            from,
            to,
            NavigationFailureType.duplicated,
            ("Avoided redundant navigation to current location: \"" + (from.fullPath) + "\".")
        );
        // backwards compatible with the first introduction of Errors
        error.name = 'NavigationDuplicated';
        return error
    }

    function createNavigationCancelledError(from, to) {
        return createRouterError(
            from,
            to,
            NavigationFailureType.cancelled,
            ("Navigation cancelled from \"" + (from.fullPath) + "\" to \"" + (to.fullPath) + "\" with a new navigation.")
        )
    }

    function createNavigationAbortedError(from, to) {
        return createRouterError(
            from,
            to,
            NavigationFailureType.aborted,
            ("Navigation aborted from \"" + (from.fullPath) + "\" to \"" + (to.fullPath) + "\" via a navigation guard.")
        )
    }

    function createRouterError(from, to, type, message) {
        var error = new Error(message);
        error._isRouter = true;
        error.from = from;
        error.to = to;
        error.type = type;

        return error
    }

    var propertiesToLog = ['params', 'query', 'hash'];

    function stringifyRoute(to) {
        if (typeof to === 'string') { return to }
        if ('path' in to) { return to.path }
        var location = {};
        propertiesToLog.forEach(function (key) {
            if (key in to) { location[key] = to[key]; }
        });
        return JSON.stringify(location, null, 2)
    }

    function isError(err) {
        return Object.prototype.toString.call(err).indexOf('Error') > -1
    }

    function isNavigationFailure(err, errorType) {
        return (
            isError(err) &&
            err._isRouter &&
            (errorType == null || err.type === errorType)
        )
    }

    /*  */

    function resolveAsyncComponents(matched) {
        return function (to, from, next) {
            var hasAsync = false;
            var pending = 0;
            var error = null;

            flatMapComponents(matched, function (def, _, match, key) {
                // if it's a function and doesn't have cid attached,
                // assume it's an async component resolve function.
                // we are not using Vue's default async resolving mechanism because
                // we want to halt the navigation until the incoming component has been
                // resolved.
                if (typeof def === 'function' && def.cid === undefined) {
                    hasAsync = true;
                    pending++;

                    var resolve = once(function (resolvedDef) {
                        if (isESModule(resolvedDef)) {
                            resolvedDef = resolvedDef.default;
                        }
                        // save resolved on async factory in case it's used elsewhere
                        def.resolved = typeof resolvedDef === 'function'
                            ? resolvedDef
                            : _Vue.extend(resolvedDef);
                        match.components[key] = resolvedDef;
                        pending--;
                        if (pending <= 0) {
                            next();
                        }
                    });

                    var reject = once(function (reason) {
                        var msg = "Failed to resolve async component " + key + ": " + reason;
                        warn(false, msg);
                        if (!error) {
                            error = isError(reason)
                                ? reason
                                : new Error(msg);
                            next(error);
                        }
                    });

                    var res;
                    try {
                        res = def(resolve, reject);
                    } catch (e) {
                        reject(e);
                    }
                    if (res) {
                        if (typeof res.then === 'function') {
                            res.then(resolve, reject);
                        } else {
                            // new syntax in Vue 2.3
                            var comp = res.component;
                            if (comp && typeof comp.then === 'function') {
                                comp.then(resolve, reject);
                            }
                        }
                    }
                }
            });

            if (!hasAsync) { next(); }
        }
    }

    function flatMapComponents(
        matched,
        fn
    ) {
        return flatten(matched.map(function (m) {
            return Object.keys(m.components).map(function (key) {
                return fn(
                    m.components[key],
                    m.instances[key],
                    m, key
                );
            })
        }))
    }

    function flatten(arr) {
        return Array.prototype.concat.apply([], arr)
    }

    var hasSymbol =
        typeof Symbol === 'function' &&
        typeof Symbol.toStringTag === 'symbol';

    function isESModule(obj) {
        return obj.__esModule || (hasSymbol && obj[Symbol.toStringTag] === 'Module')
    }

    // in Webpack 2, require.ensure now also returns a Promise
    // so the resolve/reject functions may get called an extra time
    // if the user uses an arrow function shorthand that happens to
    // return that Promise.
    function once(fn) {
        var called = false;
        return function () {
            var args = [], len = arguments.length;
            while (len--) args[len] = arguments[len];

            if (called) { return }
            called = true;
            return fn.apply(this, args)
        }
    }

    /*  */

    var History = function History(router, base) {
        this.router = router;
        this.base = normalizeBase(base);
        // start with a route object that stands for "nowhere"
        this.current = START;
        this.pending = null;
        this.ready = false;
        this.readyCbs = [];
        this.readyErrorCbs = [];
        this.errorCbs = [];
        this.listeners = [];
    };

    History.prototype.listen = function listen(cb) {
        this.cb = cb;
    };

    History.prototype.onReady = function onReady(cb, errorCb) {
        if (this.ready) {
            cb();
        } else {
            this.readyCbs.push(cb);
            if (errorCb) {
                this.readyErrorCbs.push(errorCb);
            }
        }
    };

    History.prototype.onError = function onError(errorCb) {
        this.errorCbs.push(errorCb);
    };

    History.prototype.transitionTo = function transitionTo(
        location,
        onComplete,
        onAbort
    ) {
        var this$1 = this;

        var route;
        // catch redirect option https://github.com/vuejs/vue-router/issues/3201
        try {
            route = this.router.match(location, this.current);
        } catch (e) {
            this.errorCbs.forEach(function (cb) {
                cb(e);
            });
            // Exception should still be thrown
            throw e
        }
        var prev = this.current;
        this.confirmTransition(
            route,
            function () {
                this$1.updateRoute(route);
                onComplete && onComplete(route);
                this$1.ensureURL();
                this$1.router.afterHooks.forEach(function (hook) {
                    hook && hook(route, prev);
                });

                // fire ready cbs once
                if (!this$1.ready) {
                    this$1.ready = true;
                    this$1.readyCbs.forEach(function (cb) {
                        cb(route);
                    });
                }
            },
            function (err) {
                if (onAbort) {
                    onAbort(err);
                }
                if (err && !this$1.ready) {
                    // Initial redirection should not mark the history as ready yet
                    // because it's triggered by the redirection instead
                    // https://github.com/vuejs/vue-router/issues/3225
                    // https://github.com/vuejs/vue-router/issues/3331
                    if (!isNavigationFailure(err, NavigationFailureType.redirected) || prev !== START) {
                        this$1.ready = true;
                        this$1.readyErrorCbs.forEach(function (cb) {
                            cb(err);
                        });
                    }
                }
            }
        );
    };

    History.prototype.confirmTransition = function confirmTransition(route, onComplete, onAbort) {
        var this$1 = this;

        var current = this.current;
        this.pending = route;
        var abort = function (err) {
            // changed after adding errors with
            // https://github.com/vuejs/vue-router/pull/3047 before that change,
            // redirect and aborted navigation would produce an err == null
            if (!isNavigationFailure(err) && isError(err)) {
                if (this$1.errorCbs.length) {
                    this$1.errorCbs.forEach(function (cb) {
                        cb(err);
                    });
                } else {
                    warn(false, 'uncaught error during route navigation:');
                    console.error(err);
                }
            }
            onAbort && onAbort(err);
        };
        var lastRouteIndex = route.matched.length - 1;
        var lastCurrentIndex = current.matched.length - 1;
        if (
            isSameRoute(route, current) &&
            // in the case the route map has been dynamically appended to
            lastRouteIndex === lastCurrentIndex &&
            route.matched[lastRouteIndex] === current.matched[lastCurrentIndex]
        ) {
            this.ensureURL();
            return abort(createNavigationDuplicatedError(current, route))
        }

        var ref = resolveQueue(
            this.current.matched,
            route.matched
        );
        var updated = ref.updated;
        var deactivated = ref.deactivated;
        var activated = ref.activated;

        var queue = [].concat(
            // in-component leave guards
            extractLeaveGuards(deactivated),
            // global before hooks
            this.router.beforeHooks,
            // in-component update hooks
            extractUpdateHooks(updated),
            // in-config enter guards
            activated.map(function (m) { return m.beforeEnter; }),
            // async components
            resolveAsyncComponents(activated)
        );

        var iterator = function (hook, next) {
            if (this$1.pending !== route) {
                return abort(createNavigationCancelledError(current, route))
            }
            try {
                hook(route, current, function (to) {
                    if (to === false) {
                        // next(false) -> abort navigation, ensure current URL
                        this$1.ensureURL(true);
                        abort(createNavigationAbortedError(current, route));
                    } else if (isError(to)) {
                        this$1.ensureURL(true);
                        abort(to);
                    } else if (
                        typeof to === 'string' ||
                        (typeof to === 'object' &&
                            (typeof to.path === 'string' || typeof to.name === 'string'))
                    ) {
                        // next('/') or next({ path: '/' }) -> redirect
                        abort(createNavigationRedirectedError(current, route));
                        if (typeof to === 'object' && to.replace) {
                            this$1.replace(to);
                        } else {
                            this$1.push(to);
                        }
                    } else {
                        // confirm transition and pass on the value
                        next(to);
                    }
                });
            } catch (e) {
                abort(e);
            }
        };

        runQueue(queue, iterator, function () {
            // wait until async components are resolved before
            // extracting in-component enter guards
            var enterGuards = extractEnterGuards(activated);
            var queue = enterGuards.concat(this$1.router.resolveHooks);
            runQueue(queue, iterator, function () {
                if (this$1.pending !== route) {
                    return abort(createNavigationCancelledError(current, route))
                }
                this$1.pending = null;
                onComplete(route);
                if (this$1.router.app) {
                    this$1.router.app.$nextTick(function () {
                        handleRouteEntered(route);
                    });
                }
            });
        });
    };

    History.prototype.updateRoute = function updateRoute(route) {
        this.current = route;
        this.cb && this.cb(route);
    };

    History.prototype.setupListeners = function setupListeners() {
        // Default implementation is empty
    };

    History.prototype.teardown = function teardown() {
        // clean up event listeners
        // https://github.com/vuejs/vue-router/issues/2341
        this.listeners.forEach(function (cleanupListener) {
            cleanupListener();
        });
        this.listeners = [];

        // reset current history route
        // https://github.com/vuejs/vue-router/issues/3294
        this.current = START;
        this.pending = null;
    };

    function normalizeBase(base) {
        if (!base) {
            if (inBrowser) {
                // respect <base> tag
                var baseEl = document.querySelector('base');
                base = (baseEl && baseEl.getAttribute('href')) || '/';
                // strip full URL origin
                base = base.replace(/^https?:\/\/[^\/]+/, '');
            } else {
                base = '/';
            }
        }
        // make sure there's the starting slash
        if (base.charAt(0) !== '/') {
            base = '/' + base;
        }
        // remove trailing slash
        return base.replace(/\/$/, '')
    }

    function resolveQueue(
        current,
        next
    ) {
        var i;
        var max = Math.max(current.length, next.length);
        for (i = 0; i < max; i++) {
            if (current[i] !== next[i]) {
                break
            }
        }
        return {
            updated: next.slice(0, i),
            activated: next.slice(i),
            deactivated: current.slice(i)
        }
    }

    function extractGuards(
        records,
        name,
        bind,
        reverse
    ) {
        var guards = flatMapComponents(records, function (def, instance, match, key) {
            var guard = extractGuard(def, name);
            if (guard) {
                return Array.isArray(guard)
                    ? guard.map(function (guard) { return bind(guard, instance, match, key); })
                    : bind(guard, instance, match, key)
            }
        });
        return flatten(reverse ? guards.reverse() : guards)
    }

    function extractGuard(
        def,
        key
    ) {
        if (typeof def !== 'function') {
            // extend now so that global mixins are applied.
            def = _Vue.extend(def);
        }
        return def.options[key]
    }

    function extractLeaveGuards(deactivated) {
        return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true)
    }

    function extractUpdateHooks(updated) {
        return extractGuards(updated, 'beforeRouteUpdate', bindGuard)
    }

    function bindGuard(guard, instance) {
        if (instance) {
            return function boundRouteGuard() {
                return guard.apply(instance, arguments)
            }
        }
    }

    function extractEnterGuards(
        activated
    ) {
        return extractGuards(
            activated,
            'beforeRouteEnter',
            function (guard, _, match, key) {
                return bindEnterGuard(guard, match, key)
            }
        )
    }

    function bindEnterGuard(
        guard,
        match,
        key
    ) {
        return function routeEnterGuard(to, from, next) {
            return guard(to, from, function (cb) {
                if (typeof cb === 'function') {
                    if (!match.enteredCbs[key]) {
                        match.enteredCbs[key] = [];
                    }
                    match.enteredCbs[key].push(cb);
                }
                next(cb);
            })
        }
    }

    /*  */

    var HTML5History = /*@__PURE__*/(function (History) {
        function HTML5History(router, base) {
            History.call(this, router, base);

            this._startLocation = getLocation(this.base);
        }

        if (History) HTML5History.__proto__ = History;
        HTML5History.prototype = Object.create(History && History.prototype);
        HTML5History.prototype.constructor = HTML5History;

        HTML5History.prototype.setupListeners = function setupListeners() {
            var this$1 = this;

            if (this.listeners.length > 0) {
                return
            }

            var router = this.router;
            var expectScroll = router.options.scrollBehavior;
            var supportsScroll = supportsPushState && expectScroll;

            if (supportsScroll) {
                this.listeners.push(setupScroll());
            }

            var handleRoutingEvent = function () {
                var current = this$1.current;

                // Avoiding first `popstate` event dispatched in some browsers but first
                // history route not updated since async guard at the same time.
                var location = getLocation(this$1.base);
                if (this$1.current === START && location === this$1._startLocation) {
                    return
                }

                this$1.transitionTo(location, function (route) {
                    if (supportsScroll) {
                        handleScroll(router, route, current, true);
                    }
                });
            };
            window.addEventListener('popstate', handleRoutingEvent);
            this.listeners.push(function () {
                window.removeEventListener('popstate', handleRoutingEvent);
            });
        };

        HTML5History.prototype.go = function go(n) {
            window.history.go(n);
        };

        HTML5History.prototype.push = function push(location, onComplete, onAbort) {
            var this$1 = this;

            var ref = this;
            var fromRoute = ref.current;
            this.transitionTo(location, function (route) {
                pushState(cleanPath(this$1.base + route.fullPath));
                handleScroll(this$1.router, route, fromRoute, false);
                onComplete && onComplete(route);
            }, onAbort);
        };

        HTML5History.prototype.replace = function replace(location, onComplete, onAbort) {
            var this$1 = this;

            var ref = this;
            var fromRoute = ref.current;
            this.transitionTo(location, function (route) {
                replaceState(cleanPath(this$1.base + route.fullPath));
                handleScroll(this$1.router, route, fromRoute, false);
                onComplete && onComplete(route);
            }, onAbort);
        };

        HTML5History.prototype.ensureURL = function ensureURL(push) {
            if (getLocation(this.base) !== this.current.fullPath) {
                var current = cleanPath(this.base + this.current.fullPath);
                push ? pushState(current) : replaceState(current);
            }
        };

        HTML5History.prototype.getCurrentLocation = function getCurrentLocation() {
            return getLocation(this.base)
        };

        return HTML5History;
    }(History));

    function getLocation(base) {
        var path = window.location.pathname;
        if (base && path.toLowerCase().indexOf(base.toLowerCase()) === 0) {
            path = path.slice(base.length);
        }
        return (path || '/') + window.location.search + window.location.hash
    }

    /*  */

    var HashHistory = /*@__PURE__*/(function (History) {
        function HashHistory(router, base, fallback) {
            History.call(this, router, base);
            // check history fallback deeplinking
            if (fallback && checkFallback(this.base)) {
                return
            }
            ensureSlash();
        }

        if (History) HashHistory.__proto__ = History;
        HashHistory.prototype = Object.create(History && History.prototype);
        HashHistory.prototype.constructor = HashHistory;

        // this is delayed until the app mounts
        // to avoid the hashchange listener being fired too early
        HashHistory.prototype.setupListeners = function setupListeners() {
            var this$1 = this;

            if (this.listeners.length > 0) {
                return
            }

            var router = this.router;
            var expectScroll = router.options.scrollBehavior;
            var supportsScroll = supportsPushState && expectScroll;

            if (supportsScroll) {
                this.listeners.push(setupScroll());
            }

            var handleRoutingEvent = function () {
                var current = this$1.current;
                if (!ensureSlash()) {
                    return
                }
                this$1.transitionTo(getHash(), function (route) {
                    if (supportsScroll) {
                        handleScroll(this$1.router, route, current, true);
                    }
                    if (!supportsPushState) {
                        replaceHash(route.fullPath);
                    }
                });
            };
            var eventType = supportsPushState ? 'popstate' : 'hashchange';
            window.addEventListener(
                eventType,
                handleRoutingEvent
            );
            this.listeners.push(function () {
                window.removeEventListener(eventType, handleRoutingEvent);
            });
        };

        HashHistory.prototype.push = function push(location, onComplete, onAbort) {
            var this$1 = this;

            var ref = this;
            var fromRoute = ref.current;
            this.transitionTo(
                location,
                function (route) {
                    pushHash(route.fullPath);
                    handleScroll(this$1.router, route, fromRoute, false);
                    onComplete && onComplete(route);
                },
                onAbort
            );
        };

        HashHistory.prototype.replace = function replace(location, onComplete, onAbort) {
            var this$1 = this;

            var ref = this;
            var fromRoute = ref.current;
            this.transitionTo(
                location,
                function (route) {
                    replaceHash(route.fullPath);
                    handleScroll(this$1.router, route, fromRoute, false);
                    onComplete && onComplete(route);
                },
                onAbort
            );
        };

        HashHistory.prototype.go = function go(n) {
            window.history.go(n);
        };

        HashHistory.prototype.ensureURL = function ensureURL(push) {
            var current = this.current.fullPath;
            if (getHash() !== current) {
                push ? pushHash(current) : replaceHash(current);
            }
        };

        HashHistory.prototype.getCurrentLocation = function getCurrentLocation() {
            return getHash()
        };

        return HashHistory;
    }(History));

    function checkFallback(base) {
        var location = getLocation(base);
        if (!/^\/#/.test(location)) {
            window.location.replace(cleanPath(base + '/#' + location));
            return true
        }
    }

    function ensureSlash() {
        var path = getHash();
        if (path.charAt(0) === '/') {
            return true
        }
        replaceHash('/' + path);
        return false
    }

    function getHash() {
        // We can't use window.location.hash here because it's not
        // consistent across browsers - Firefox will pre-decode it!
        var href = window.location.href;
        var index = href.indexOf('#');
        // empty path
        if (index < 0) { return '' }

        href = href.slice(index + 1);

        return href
    }

    function getUrl(path) {
        var href = window.location.href;
        var i = href.indexOf('#');
        var base = i >= 0 ? href.slice(0, i) : href;
        return (base + "#" + path)
    }

    function pushHash(path) {
        if (supportsPushState) {
            pushState(getUrl(path));
        } else {
            window.location.hash = path;
        }
    }

    function replaceHash(path) {
        if (supportsPushState) {
            replaceState(getUrl(path));
        } else {
            window.location.replace(getUrl(path));
        }
    }

    /*  */

    var AbstractHistory = /*@__PURE__*/(function (History) {
        function AbstractHistory(router, base) {
            History.call(this, router, base);
            this.stack = [];
            this.index = -1;
        }

        if (History) AbstractHistory.__proto__ = History;
        AbstractHistory.prototype = Object.create(History && History.prototype);
        AbstractHistory.prototype.constructor = AbstractHistory;

        AbstractHistory.prototype.push = function push(location, onComplete, onAbort) {
            var this$1 = this;

            this.transitionTo(
                location,
                function (route) {
                    this$1.stack = this$1.stack.slice(0, this$1.index + 1).concat(route);
                    this$1.index++;
                    onComplete && onComplete(route);
                },
                onAbort
            );
        };

        AbstractHistory.prototype.replace = function replace(location, onComplete, onAbort) {
            var this$1 = this;

            this.transitionTo(
                location,
                function (route) {
                    this$1.stack = this$1.stack.slice(0, this$1.index).concat(route);
                    onComplete && onComplete(route);
                },
                onAbort
            );
        };

        AbstractHistory.prototype.go = function go(n) {
            var this$1 = this;

            var targetIndex = this.index + n;
            if (targetIndex < 0 || targetIndex >= this.stack.length) {
                return
            }
            var route = this.stack[targetIndex];
            this.confirmTransition(
                route,
                function () {
                    var prev = this$1.current;
                    this$1.index = targetIndex;
                    this$1.updateRoute(route);
                    this$1.router.afterHooks.forEach(function (hook) {
                        hook && hook(route, prev);
                    });
                },
                function (err) {
                    if (isNavigationFailure(err, NavigationFailureType.duplicated)) {
                        this$1.index = targetIndex;
                    }
                }
            );
        };

        AbstractHistory.prototype.getCurrentLocation = function getCurrentLocation() {
            var current = this.stack[this.stack.length - 1];
            return current ? current.fullPath : '/'
        };

        AbstractHistory.prototype.ensureURL = function ensureURL() {
            // noop
        };

        return AbstractHistory;
    }(History));

    /*  */

    var VueRouter = function VueRouter(options) {
        if (options === void 0) options = {};

        this.app = null;
        this.apps = [];
        this.options = options;
        this.beforeHooks = [];
        this.resolveHooks = [];
        this.afterHooks = [];
        this.matcher = createMatcher(options.routes || [], this);

        var mode = options.mode || 'hash';
        this.fallback =
            mode === 'history' && !supportsPushState && options.fallback !== false;
        if (this.fallback) {
            mode = 'hash';
        }
        if (!inBrowser) {
            mode = 'abstract';
        }
        this.mode = mode;

        switch (mode) {
            case 'history':
                this.history = new HTML5History(this, options.base);
                break
            case 'hash':
                this.history = new HashHistory(this, options.base, this.fallback);
                break
            case 'abstract':
                this.history = new AbstractHistory(this, options.base);
                break
            default:
                {
                    assert(false, ("invalid mode: " + mode));
                }
        }
    };

    var prototypeAccessors = { currentRoute: { configurable: true } };

    VueRouter.prototype.match = function match(raw, current, redirectedFrom) {
        return this.matcher.match(raw, current, redirectedFrom)
    };

    prototypeAccessors.currentRoute.get = function () {
        return this.history && this.history.current
    };

    VueRouter.prototype.init = function init(app /* Vue component instance */) {
        var this$1 = this;


        assert(
            install.installed,
            "not installed. Make sure to call `Vue.use(VueRouter)` " +
            "before creating root instance."
        );

        this.apps.push(app);

        // set up app destroyed handler
        // https://github.com/vuejs/vue-router/issues/2639
        app.$once('hook:destroyed', function () {
            // clean out app from this.apps array once destroyed
            var index = this$1.apps.indexOf(app);
            if (index > -1) { this$1.apps.splice(index, 1); }
            // ensure we still have a main app or null if no apps
            // we do not release the router so it can be reused
            if (this$1.app === app) { this$1.app = this$1.apps[0] || null; }

            if (!this$1.app) { this$1.history.teardown(); }
        });

        // main app previously initialized
        // return as we don't need to set up new history listener
        if (this.app) {
            return
        }

        this.app = app;

        var history = this.history;

        if (history instanceof HTML5History || history instanceof HashHistory) {
            var handleInitialScroll = function (routeOrError) {
                var from = history.current;
                var expectScroll = this$1.options.scrollBehavior;
                var supportsScroll = supportsPushState && expectScroll;

                if (supportsScroll && 'fullPath' in routeOrError) {
                    handleScroll(this$1, routeOrError, from, false);
                }
            };
            var setupListeners = function (routeOrError) {
                history.setupListeners();
                handleInitialScroll(routeOrError);
            };
            history.transitionTo(
                history.getCurrentLocation(),
                setupListeners,
                setupListeners
            );
        }

        history.listen(function (route) {
            this$1.apps.forEach(function (app) {
                app._route = route;
            });
        });
    };

    VueRouter.prototype.beforeEach = function beforeEach(fn) {
        return registerHook(this.beforeHooks, fn)
    };

    VueRouter.prototype.beforeResolve = function beforeResolve(fn) {
        return registerHook(this.resolveHooks, fn)
    };

    VueRouter.prototype.afterEach = function afterEach(fn) {
        return registerHook(this.afterHooks, fn)
    };

    VueRouter.prototype.onReady = function onReady(cb, errorCb) {
        this.history.onReady(cb, errorCb);
    };

    VueRouter.prototype.onError = function onError(errorCb) {
        this.history.onError(errorCb);
    };

    VueRouter.prototype.push = function push(location, onComplete, onAbort) {
        var this$1 = this;

        // $flow-disable-line
        if (!onComplete && !onAbort && typeof Promise !== 'undefined') {
            return new Promise(function (resolve, reject) {
                this$1.history.push(location, resolve, reject);
            })
        } else {
            this.history.push(location, onComplete, onAbort);
        }
    };

    VueRouter.prototype.replace = function replace(location, onComplete, onAbort) {
        var this$1 = this;

        // $flow-disable-line
        if (!onComplete && !onAbort && typeof Promise !== 'undefined') {
            return new Promise(function (resolve, reject) {
                this$1.history.replace(location, resolve, reject);
            })
        } else {
            this.history.replace(location, onComplete, onAbort);
        }
    };

    VueRouter.prototype.go = function go(n) {
        this.history.go(n);
    };

    VueRouter.prototype.back = function back() {
        this.go(-1);
    };

    VueRouter.prototype.forward = function forward() {
        this.go(1);
    };

    VueRouter.prototype.getMatchedComponents = function getMatchedComponents(to) {
        var route = to
            ? to.matched
                ? to
                : this.resolve(to).route
            : this.currentRoute;
        if (!route) {
            return []
        }
        return [].concat.apply(
            [],
            route.matched.map(function (m) {
                return Object.keys(m.components).map(function (key) {
                    return m.components[key]
                })
            })
        )
    };

    VueRouter.prototype.resolve = function resolve(
        to,
        current,
        append
    ) {
        current = current || this.history.current;
        var location = normalizeLocation(to, current, append, this);
        var route = this.match(location, current);
        var fullPath = route.redirectedFrom || route.fullPath;
        var base = this.history.base;
        var href = createHref(base, fullPath, this.mode);
        return {
            location: location,
            route: route,
            href: href,
            // for backwards compat
            normalizedTo: location,
            resolved: route
        }
    };

    VueRouter.prototype.getRoutes = function getRoutes() {
        return this.matcher.getRoutes()
    };

    VueRouter.prototype.addRoute = function addRoute(parentOrRoute, route) {
        this.matcher.addRoute(parentOrRoute, route);
        if (this.history.current !== START) {
            this.history.transitionTo(this.history.getCurrentLocation());
        }
    };

    VueRouter.prototype.addRoutes = function addRoutes(routes) {
        {
            warn(false, 'router.addRoutes() is deprecated and has been removed in Vue Router 4. Use router.addRoute() instead.');
        }
        this.matcher.addRoutes(routes);
        if (this.history.current !== START) {
            this.history.transitionTo(this.history.getCurrentLocation());
        }
    };

    Object.defineProperties(VueRouter.prototype, prototypeAccessors);

    function registerHook(list, fn) {
        list.push(fn);
        return function () {
            var i = list.indexOf(fn);
            if (i > -1) { list.splice(i, 1); }
        }
    }

    function createHref(base, fullPath, mode) {
        var path = mode === 'hash' ? '#' + fullPath : fullPath;
        return base ? cleanPath(base + '/' + path) : path
    }

    VueRouter.install = install;
    VueRouter.version = '3.5.1';
    VueRouter.isNavigationFailure = isNavigationFailure;
    VueRouter.NavigationFailureType = NavigationFailureType;
    VueRouter.START_LOCATION = START;

    if (inBrowser && window.Vue) {
        window.Vue.use(VueRouter);
    }

    return VueRouter;

})));


//Included:lib/010.i18next-v21.8.0.js
!function (e, t) { "object" == typeof exports && "undefined" != typeof module ? module.exports = t() : "function" == typeof define && define.amd ? define(t) : (e = "undefined" != typeof globalThis ? globalThis : e || self).i18next = t() }(this, function () { "use strict"; function e(t) { return (e = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (e) { return typeof e } : function (e) { return e && "function" == typeof Symbol && e.constructor === Symbol && e !== Symbol.prototype ? "symbol" : typeof e })(t) } function t(e, t) { if (!(e instanceof t)) throw new TypeError("Cannot call a class as a function") } function n(e, t) { for (var n = 0; n < t.length; n++) { var r = t[n]; r.enumerable = r.enumerable || !1, r.configurable = !0, "value" in r && (r.writable = !0), Object.defineProperty(e, r.key, r) } } function r(e, t, r) { return t && n(e.prototype, t), r && n(e, r), Object.defineProperty(e, "prototype", { writable: !1 }), e } function o(e) { if (void 0 === e) throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); return e } function i(e, t) { return (i = Object.setPrototypeOf || function (e, t) { return e.__proto__ = t, e })(e, t) } function a(e, t) { if ("function" != typeof t && null !== t) throw new TypeError("Super expression must either be null or a function"); e.prototype = Object.create(t && t.prototype, { constructor: { value: e, writable: !0, configurable: !0 } }), Object.defineProperty(e, "prototype", { writable: !1 }), t && i(e, t) } function s(t, n) { if (n && ("object" === e(n) || "function" == typeof n)) return n; if (void 0 !== n) throw new TypeError("Derived constructors may only return object or undefined"); return o(t) } function u(e) { return (u = Object.setPrototypeOf ? Object.getPrototypeOf : function (e) { return e.__proto__ || Object.getPrototypeOf(e) })(e) } function c(e, t, n) { return t in e ? Object.defineProperty(e, t, { value: n, enumerable: !0, configurable: !0, writable: !0 }) : e[t] = n, e } function l(e, t) { var n = Object.keys(e); if (Object.getOwnPropertySymbols) { var r = Object.getOwnPropertySymbols(e); t && (r = r.filter(function (t) { return Object.getOwnPropertyDescriptor(e, t).enumerable })), n.push.apply(n, r) } return n } function f(e) { for (var t = 1; t < arguments.length; t++) { var n = null != arguments[t] ? arguments[t] : {}; t % 2 ? l(Object(n), !0).forEach(function (t) { c(e, t, n[t]) }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(n)) : l(Object(n)).forEach(function (t) { Object.defineProperty(e, t, Object.getOwnPropertyDescriptor(n, t)) }) } return e } var p = { type: "logger", log: function (e) { this.output("log", e) }, warn: function (e) { this.output("warn", e) }, error: function (e) { this.output("error", e) }, output: function (e, t) { console && console[e] && console[e].apply(console, t) } }, g = new (function () { function e(n) { var r = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {}; t(this, e), this.init(n, r) } return r(e, [{ key: "init", value: function (e) { var t = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {}; this.prefix = t.prefix || "i18next:", this.logger = e || p, this.options = t, this.debug = t.debug } }, { key: "setDebug", value: function (e) { this.debug = e } }, { key: "log", value: function () { for (var e = arguments.length, t = new Array(e), n = 0; n < e; n++)t[n] = arguments[n]; return this.forward(t, "log", "", !0) } }, { key: "warn", value: function () { for (var e = arguments.length, t = new Array(e), n = 0; n < e; n++)t[n] = arguments[n]; return this.forward(t, "warn", "", !0) } }, { key: "error", value: function () { for (var e = arguments.length, t = new Array(e), n = 0; n < e; n++)t[n] = arguments[n]; return this.forward(t, "error", "") } }, { key: "deprecate", value: function () { for (var e = arguments.length, t = new Array(e), n = 0; n < e; n++)t[n] = arguments[n]; return this.forward(t, "warn", "WARNING DEPRECATED: ", !0) } }, { key: "forward", value: function (e, t, n, r) { return r && !this.debug ? null : ("string" == typeof e[0] && (e[0] = "".concat(n).concat(this.prefix, " ").concat(e[0])), this.logger[t](e)) } }, { key: "create", value: function (t) { return new e(this.logger, f(f({}, { prefix: "".concat(this.prefix, ":").concat(t, ":") }), this.options)) } }]), e }()), h = function () { function e() { t(this, e), this.observers = {} } return r(e, [{ key: "on", value: function (e, t) { var n = this; return e.split(" ").forEach(function (e) { n.observers[e] = n.observers[e] || [], n.observers[e].push(t) }), this } }, { key: "off", value: function (e, t) { this.observers[e] && (t ? this.observers[e] = this.observers[e].filter(function (e) { return e !== t }) : delete this.observers[e]) } }, { key: "emit", value: function (e) { for (var t = arguments.length, n = new Array(t > 1 ? t - 1 : 0), r = 1; r < t; r++)n[r - 1] = arguments[r]; this.observers[e] && [].concat(this.observers[e]).forEach(function (e) { e.apply(void 0, n) }); this.observers["*"] && [].concat(this.observers["*"]).forEach(function (t) { t.apply(t, [e].concat(n)) }) } }]), e }(); function d() { var e, t, n = new Promise(function (n, r) { e = n, t = r }); return n.resolve = e, n.reject = t, n } function v(e) { return null == e ? "" : "" + e } function y(e, t, n) { function r(e) { return e && e.indexOf("###") > -1 ? e.replace(/###/g, ".") : e } function o() { return !e || "string" == typeof e } for (var i = "string" != typeof t ? [].concat(t) : t.split("."); i.length > 1;) { if (o()) return {}; var a = r(i.shift()); !e[a] && n && (e[a] = new n), e = Object.prototype.hasOwnProperty.call(e, a) ? e[a] : {} } return o() ? {} : { obj: e, k: r(i.shift()) } } function m(e, t, n) { var r = y(e, t, Object); r.obj[r.k] = n } function b(e, t) { var n = y(e, t), r = n.obj, o = n.k; if (r) return r[o] } function O(e, t, n) { var r = b(e, n); return void 0 !== r ? r : b(t, n) } function k(e) { return e.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&") } var w = { "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;", "/": "&#x2F;" }; function x(e) { return "string" == typeof e ? e.replace(/[&<>"'\/]/g, function (e) { return w[e] }) : e } var S = "undefined" != typeof window && window.navigator && window.navigator.userAgent && window.navigator.userAgent.indexOf("MSIE") > -1, j = [" ", ",", "?", "!", ";"]; function P(e, t) { var n = Object.keys(e); if (Object.getOwnPropertySymbols) { var r = Object.getOwnPropertySymbols(e); t && (r = r.filter(function (t) { return Object.getOwnPropertyDescriptor(e, t).enumerable })), n.push.apply(n, r) } return n } function L(e) { for (var t = 1; t < arguments.length; t++) { var n = null != arguments[t] ? arguments[t] : {}; t % 2 ? P(Object(n), !0).forEach(function (t) { c(e, t, n[t]) }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(n)) : P(Object(n)).forEach(function (t) { Object.defineProperty(e, t, Object.getOwnPropertyDescriptor(n, t)) }) } return e } function R(e) { var t = function () { if ("undefined" == typeof Reflect || !Reflect.construct) return !1; if (Reflect.construct.sham) return !1; if ("function" == typeof Proxy) return !0; try { return Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () { })), !0 } catch (e) { return !1 } }(); return function () { var n, r = u(e); if (t) { var o = u(this).constructor; n = Reflect.construct(r, arguments, o) } else n = r.apply(this, arguments); return s(this, n) } } var N = function (e) { a(i, h); var n = R(i); function i(e) { var r, a = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : { ns: ["translation"], defaultNS: "translation" }; return t(this, i), r = n.call(this), S && h.call(o(r)), r.data = e || {}, r.options = a, void 0 === r.options.keySeparator && (r.options.keySeparator = "."), void 0 === r.options.ignoreJSONStructure && (r.options.ignoreJSONStructure = !0), r } return r(i, [{ key: "addNamespaces", value: function (e) { this.options.ns.indexOf(e) < 0 && this.options.ns.push(e) } }, { key: "removeNamespaces", value: function (e) { var t = this.options.ns.indexOf(e); t > -1 && this.options.ns.splice(t, 1) } }, { key: "getResource", value: function (e, t, n) { var r = arguments.length > 3 && void 0 !== arguments[3] ? arguments[3] : {}, o = void 0 !== r.keySeparator ? r.keySeparator : this.options.keySeparator, i = void 0 !== r.ignoreJSONStructure ? r.ignoreJSONStructure : this.options.ignoreJSONStructure, a = [e, t]; n && "string" != typeof n && (a = a.concat(n)), n && "string" == typeof n && (a = a.concat(o ? n.split(o) : n)), e.indexOf(".") > -1 && (a = e.split(".")); var s = b(this.data, a); return s || !i || "string" != typeof n ? s : function e(t, n) { var r = arguments.length > 2 && void 0 !== arguments[2] ? arguments[2] : "."; if (t) { if (t[n]) return t[n]; for (var o = n.split(r), i = t, a = 0; a < o.length; ++a) { if (!i) return; if ("string" == typeof i[o[a]] && a + 1 < o.length) return; if (void 0 === i[o[a]]) { for (var s = 2, u = o.slice(a, a + s).join(r), c = i[u]; void 0 === c && o.length > a + s;)s++, c = i[u = o.slice(a, a + s).join(r)]; if (void 0 === c) return; if (n.endsWith(u)) { if ("string" == typeof c) return c; if (u && "string" == typeof c[u]) return c[u] } var l = o.slice(a + s).join(r); return l ? e(c, l, r) : void 0 } i = i[o[a]] } return i } }(this.data && this.data[e] && this.data[e][t], n, o) } }, { key: "addResource", value: function (e, t, n, r) { var o = arguments.length > 4 && void 0 !== arguments[4] ? arguments[4] : { silent: !1 }, i = this.options.keySeparator; void 0 === i && (i = "."); var a = [e, t]; n && (a = a.concat(i ? n.split(i) : n)), e.indexOf(".") > -1 && (r = t, t = (a = e.split("."))[1]), this.addNamespaces(t), m(this.data, a, r), o.silent || this.emit("added", e, t, n, r) } }, { key: "addResources", value: function (e, t, n) { var r = arguments.length > 3 && void 0 !== arguments[3] ? arguments[3] : { silent: !1 }; for (var o in n) "string" != typeof n[o] && "[object Array]" !== Object.prototype.toString.apply(n[o]) || this.addResource(e, t, o, n[o], { silent: !0 }); r.silent || this.emit("added", e, t, n) } }, { key: "addResourceBundle", value: function (e, t, n, r, o) { var i = arguments.length > 5 && void 0 !== arguments[5] ? arguments[5] : { silent: !1 }, a = [e, t]; e.indexOf(".") > -1 && (r = n, n = t, t = (a = e.split("."))[1]), this.addNamespaces(t); var s = b(this.data, a) || {}; r ? function e(t, n, r) { for (var o in n) "__proto__" !== o && "constructor" !== o && (o in t ? "string" == typeof t[o] || t[o] instanceof String || "string" == typeof n[o] || n[o] instanceof String ? r && (t[o] = n[o]) : e(t[o], n[o], r) : t[o] = n[o]); return t }(s, n, o) : s = L(L({}, s), n), m(this.data, a, s), i.silent || this.emit("added", e, t, n) } }, { key: "removeResourceBundle", value: function (e, t) { this.hasResourceBundle(e, t) && delete this.data[e][t], this.removeNamespaces(t), this.emit("removed", e, t) } }, { key: "hasResourceBundle", value: function (e, t) { return void 0 !== this.getResource(e, t) } }, { key: "getResourceBundle", value: function (e, t) { return t || (t = this.options.defaultNS), "v1" === this.options.compatibilityAPI ? L(L({}, {}), this.getResource(e, t)) : this.getResource(e, t) } }, { key: "getDataByLanguage", value: function (e) { return this.data[e] } }, { key: "hasLanguageSomeTranslations", value: function (e) { var t = this.getDataByLanguage(e); return !!(t && Object.keys(t) || []).find(function (e) { return t[e] && Object.keys(t[e]).length > 0 }) } }, { key: "toJSON", value: function () { return this.data } }]), i }(), C = { processors: {}, addPostProcessor: function (e) { this.processors[e.name] = e }, handle: function (e, t, n, r, o) { var i = this; return e.forEach(function (e) { i.processors[e] && (t = i.processors[e].process(t, n, r, o)) }), t } }; function E(e, t) { var n = Object.keys(e); if (Object.getOwnPropertySymbols) { var r = Object.getOwnPropertySymbols(e); t && (r = r.filter(function (t) { return Object.getOwnPropertyDescriptor(e, t).enumerable })), n.push.apply(n, r) } return n } function D(e) { for (var t = 1; t < arguments.length; t++) { var n = null != arguments[t] ? arguments[t] : {}; t % 2 ? E(Object(n), !0).forEach(function (t) { c(e, t, n[t]) }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(n)) : E(Object(n)).forEach(function (t) { Object.defineProperty(e, t, Object.getOwnPropertyDescriptor(n, t)) }) } return e } function F(e) { var t = function () { if ("undefined" == typeof Reflect || !Reflect.construct) return !1; if (Reflect.construct.sham) return !1; if ("function" == typeof Proxy) return !0; try { return Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () { })), !0 } catch (e) { return !1 } }(); return function () { var n, r = u(e); if (t) { var o = u(this).constructor; n = Reflect.construct(r, arguments, o) } else n = r.apply(this, arguments); return s(this, n) } } var I = {}, A = function (n) { a(s, h); var i = F(s); function s(e) { var n, r, a, u, c = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {}; return t(this, s), n = i.call(this), S && h.call(o(n)), r = ["resourceStore", "languageUtils", "pluralResolver", "interpolator", "backendConnector", "i18nFormat", "utils"], a = e, u = o(n), r.forEach(function (e) { a[e] && (u[e] = a[e]) }), n.options = c, void 0 === n.options.keySeparator && (n.options.keySeparator = "."), n.logger = g.create("translator"), n } return r(s, [{ key: "changeLanguage", value: function (e) { e && (this.language = e) } }, { key: "exists", value: function (e) { var t = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : { interpolation: {} }; if (null == e) return !1; var n = this.resolve(e, t); return n && void 0 !== n.res } }, { key: "extractFromKey", value: function (e, t) { var n = void 0 !== t.nsSeparator ? t.nsSeparator : this.options.nsSeparator; void 0 === n && (n = ":"); var r = void 0 !== t.keySeparator ? t.keySeparator : this.options.keySeparator, o = t.ns || this.options.defaultNS || [], i = n && e.indexOf(n) > -1, a = !(this.options.userDefinedKeySeparator || t.keySeparator || this.options.userDefinedNsSeparator || t.nsSeparator || function (e, t, n) { t = t || "", n = n || ""; var r = j.filter(function (e) { return t.indexOf(e) < 0 && n.indexOf(e) < 0 }); if (0 === r.length) return !0; var o = new RegExp("(".concat(r.map(function (e) { return "?" === e ? "\\?" : e }).join("|"), ")")), i = !o.test(e); if (!i) { var a = e.indexOf(n); a > 0 && !o.test(e.substring(0, a)) && (i = !0) } return i }(e, n, r)); if (i && !a) { var s = e.match(this.interpolator.nestingRegexp); if (s && s.length > 0) return { key: e, namespaces: o }; var u = e.split(n); (n !== r || n === r && this.options.ns.indexOf(u[0]) > -1) && (o = u.shift()), e = u.join(r) } return "string" == typeof o && (o = [o]), { key: e, namespaces: o } } }, { key: "translate", value: function (t, n, r) { var o = this; if ("object" !== e(n) && this.options.overloadTranslationOptionHandler && (n = this.options.overloadTranslationOptionHandler(arguments)), n || (n = {}), null == t) return ""; Array.isArray(t) || (t = [String(t)]); var i = void 0 !== n.returnDetails ? n.returnDetails : this.options.returnDetails, a = void 0 !== n.keySeparator ? n.keySeparator : this.options.keySeparator, u = this.extractFromKey(t[t.length - 1], n), c = u.key, l = u.namespaces, f = l[l.length - 1], p = n.lng || this.language, g = n.appendNamespaceToCIMode || this.options.appendNamespaceToCIMode; if (p && "cimode" === p.toLowerCase()) { if (g) { var h = n.nsSeparator || this.options.nsSeparator; return i ? (d.res = "".concat(f).concat(h).concat(c), d) : "".concat(f).concat(h).concat(c) } return i ? (d.res = c, d) : c } var d = this.resolve(t, n), v = d && d.res, y = d && d.usedKey || c, m = d && d.exactUsedKey || c, b = Object.prototype.toString.apply(v), O = void 0 !== n.joinArrays ? n.joinArrays : this.options.joinArrays, k = !this.i18nFormat || this.i18nFormat.handleAsObject; if (k && v && ("string" != typeof v && "boolean" != typeof v && "number" != typeof v) && ["[object Number]", "[object Function]", "[object RegExp]"].indexOf(b) < 0 && ("string" != typeof O || "[object Array]" !== b)) { if (!n.returnObjects && !this.options.returnObjects) { this.options.returnedObjectHandler || this.logger.warn("accessing an object - but returnObjects options is not enabled!"); var w = this.options.returnedObjectHandler ? this.options.returnedObjectHandler(y, v, D(D({}, n), {}, { ns: l })) : "key '".concat(c, " (").concat(this.language, ")' returned an object instead of string."); return i ? (d.res = w, d) : w } if (a) { var x = "[object Array]" === b, S = x ? [] : {}, j = x ? m : y; for (var P in v) if (Object.prototype.hasOwnProperty.call(v, P)) { var L = "".concat(j).concat(a).concat(P); S[P] = this.translate(L, D(D({}, n), { joinArrays: !1, ns: l })), S[P] === L && (S[P] = v[P]) } v = S } } else if (k && "string" == typeof O && "[object Array]" === b) (v = v.join(O)) && (v = this.extendTranslation(v, t, n, r)); else { var R = !1, N = !1, C = void 0 !== n.count && "string" != typeof n.count, E = s.hasDefaultValue(n), F = C ? this.pluralResolver.getSuffix(p, n.count, n) : "", I = n["defaultValue".concat(F)] || n.defaultValue; !this.isValidLookup(v) && E && (R = !0, v = I), this.isValidLookup(v) || (N = !0, v = c); var A = (n.missingKeyNoValueFallbackToKey || this.options.missingKeyNoValueFallbackToKey) && N ? void 0 : v, V = E && I !== v && this.options.updateMissing; if (N || R || V) { if (this.logger.log(V ? "updateKey" : "missingKey", p, f, c, V ? I : v), a) { var T = this.resolve(c, D(D({}, n), {}, { keySeparator: !1 })); T && T.res && this.logger.warn("Seems the loaded translations were in flat JSON format instead of nested. Either set keySeparator: false on init or make sure your translations are published in nested format.") } var U = [], B = this.languageUtils.getFallbackCodes(this.options.fallbackLng, n.lng || this.language); if ("fallback" === this.options.saveMissingTo && B && B[0]) for (var K = 0; K < B.length; K++)U.push(B[K]); else "all" === this.options.saveMissingTo ? U = this.languageUtils.toResolveHierarchy(n.lng || this.language) : U.push(n.lng || this.language); var M = function (e, t, r) { var i = E && r !== v ? r : A; o.options.missingKeyHandler ? o.options.missingKeyHandler(e, f, t, i, V, n) : o.backendConnector && o.backendConnector.saveMissing && o.backendConnector.saveMissing(e, f, t, i, V, n), o.emit("missingKey", e, f, t, v) }; this.options.saveMissing && (this.options.saveMissingPlurals && C ? U.forEach(function (e) { o.pluralResolver.getSuffixes(e, n).forEach(function (t) { M([e], c + t, n["defaultValue".concat(t)] || I) }) }) : M(U, c, I)) } v = this.extendTranslation(v, t, n, d, r), N && v === c && this.options.appendNamespaceToMissingKey && (v = "".concat(f, ":").concat(c)), (N || R) && this.options.parseMissingKeyHandler && (v = "v1" !== this.options.compatibilityAPI ? this.options.parseMissingKeyHandler(c, R ? v : void 0) : this.options.parseMissingKeyHandler(v)) } return i ? (d.res = v, d) : v } }, { key: "extendTranslation", value: function (e, t, n, r, o) { var i = this; if (this.i18nFormat && this.i18nFormat.parse) e = this.i18nFormat.parse(e, D(D({}, this.options.interpolation.defaultVariables), n), r.usedLng, r.usedNS, r.usedKey, { resolved: r }); else if (!n.skipInterpolation) { n.interpolation && this.interpolator.init(D(D({}, n), { interpolation: D(D({}, this.options.interpolation), n.interpolation) })); var a, s = "string" == typeof e && (n && n.interpolation && void 0 !== n.interpolation.skipOnVariables ? n.interpolation.skipOnVariables : this.options.interpolation.skipOnVariables); if (s) { var u = e.match(this.interpolator.nestingRegexp); a = u && u.length } var c = n.replace && "string" != typeof n.replace ? n.replace : n; if (this.options.interpolation.defaultVariables && (c = D(D({}, this.options.interpolation.defaultVariables), c)), e = this.interpolator.interpolate(e, c, n.lng || this.language, n), s) { var l = e.match(this.interpolator.nestingRegexp); a < (l && l.length) && (n.nest = !1) } !1 !== n.nest && (e = this.interpolator.nest(e, function () { for (var e = arguments.length, r = new Array(e), a = 0; a < e; a++)r[a] = arguments[a]; return o && o[0] === r[0] && !n.context ? (i.logger.warn("It seems you are nesting recursively key: ".concat(r[0], " in key: ").concat(t[0])), null) : i.translate.apply(i, r.concat([t])) }, n)), n.interpolation && this.interpolator.reset() } var f = n.postProcess || this.options.postProcess, p = "string" == typeof f ? [f] : f; return null != e && p && p.length && !1 !== n.applyPostProcessor && (e = C.handle(p, e, t, this.options && this.options.postProcessPassResolved ? D({ i18nResolved: r }, n) : n, this)), e } }, { key: "resolve", value: function (e) { var t, n, r, o, i, a = this, s = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {}; return "string" == typeof e && (e = [e]), e.forEach(function (e) { if (!a.isValidLookup(t)) { var u = a.extractFromKey(e, s), c = u.key; n = c; var l = u.namespaces; a.options.fallbackNS && (l = l.concat(a.options.fallbackNS)); var f = void 0 !== s.count && "string" != typeof s.count, p = f && !s.ordinal && 0 === s.count && a.pluralResolver.shouldUseIntlApi(), g = void 0 !== s.context && ("string" == typeof s.context || "number" == typeof s.context) && "" !== s.context, h = s.lngs ? s.lngs : a.languageUtils.toResolveHierarchy(s.lng || a.language, s.fallbackLng); l.forEach(function (e) { a.isValidLookup(t) || (i = e, !I["".concat(h[0], "-").concat(e)] && a.utils && a.utils.hasLoadedNamespace && !a.utils.hasLoadedNamespace(i) && (I["".concat(h[0], "-").concat(e)] = !0, a.logger.warn('key "'.concat(n, '" for languages "').concat(h.join(", "), '" won\'t get resolved as namespace "').concat(i, '" was not yet loaded'), "This means something IS WRONG in your setup. You access the t function before i18next.init / i18next.loadNamespace / i18next.changeLanguage was done. Wait for the callback or Promise to resolve before accessing it!!!")), h.forEach(function (n) { if (!a.isValidLookup(t)) { o = n; var i, u = [c]; if (a.i18nFormat && a.i18nFormat.addLookupKeys) a.i18nFormat.addLookupKeys(u, c, n, e, s); else { var l; f && (l = a.pluralResolver.getSuffix(n, s.count, s)); if (f && (u.push(c + l), p && u.push(c + "_zero")), g) { var h = "".concat(c).concat(a.options.contextSeparator).concat(s.context); u.push(h), f && (u.push(h + l), p && u.push(h + "_zero")) } } for (; i = u.pop();)a.isValidLookup(t) || (r = i, t = a.getResource(n, e, i, s)) } })) }) } }), { res: t, usedKey: n, exactUsedKey: r, usedLng: o, usedNS: i } } }, { key: "isValidLookup", value: function (e) { return !(void 0 === e || !this.options.returnNull && null === e || !this.options.returnEmptyString && "" === e) } }, { key: "getResource", value: function (e, t, n) { var r = arguments.length > 3 && void 0 !== arguments[3] ? arguments[3] : {}; return this.i18nFormat && this.i18nFormat.getResource ? this.i18nFormat.getResource(e, t, n, r) : this.resourceStore.getResource(e, t, n, r) } }], [{ key: "hasDefaultValue", value: function (e) { for (var t in e) if (Object.prototype.hasOwnProperty.call(e, t) && "defaultValue" === t.substring(0, "defaultValue".length) && void 0 !== e[t]) return !0; return !1 } }]), s }(); function V(e) { return e.charAt(0).toUpperCase() + e.slice(1) } var T = function () { function e(n) { t(this, e), this.options = n, this.supportedLngs = this.options.supportedLngs || !1, this.logger = g.create("languageUtils") } return r(e, [{ key: "getScriptPartFromCode", value: function (e) { if (!e || e.indexOf("-") < 0) return null; var t = e.split("-"); return 2 === t.length ? null : (t.pop(), "x" === t[t.length - 1].toLowerCase() ? null : this.formatLanguageCode(t.join("-"))) } }, { key: "getLanguagePartFromCode", value: function (e) { if (!e || e.indexOf("-") < 0) return e; var t = e.split("-"); return this.formatLanguageCode(t[0]) } }, { key: "formatLanguageCode", value: function (e) { if ("string" == typeof e && e.indexOf("-") > -1) { var t = ["hans", "hant", "latn", "cyrl", "cans", "mong", "arab"], n = e.split("-"); return this.options.lowerCaseLng ? n = n.map(function (e) { return e.toLowerCase() }) : 2 === n.length ? (n[0] = n[0].toLowerCase(), n[1] = n[1].toUpperCase(), t.indexOf(n[1].toLowerCase()) > -1 && (n[1] = V(n[1].toLowerCase()))) : 3 === n.length && (n[0] = n[0].toLowerCase(), 2 === n[1].length && (n[1] = n[1].toUpperCase()), "sgn" !== n[0] && 2 === n[2].length && (n[2] = n[2].toUpperCase()), t.indexOf(n[1].toLowerCase()) > -1 && (n[1] = V(n[1].toLowerCase())), t.indexOf(n[2].toLowerCase()) > -1 && (n[2] = V(n[2].toLowerCase()))), n.join("-") } return this.options.cleanCode || this.options.lowerCaseLng ? e.toLowerCase() : e } }, { key: "isSupportedCode", value: function (e) { return ("languageOnly" === this.options.load || this.options.nonExplicitSupportedLngs) && (e = this.getLanguagePartFromCode(e)), !this.supportedLngs || !this.supportedLngs.length || this.supportedLngs.indexOf(e) > -1 } }, { key: "getBestMatchFromCodes", value: function (e) { var t, n = this; return e ? (e.forEach(function (e) { if (!t) { var r = n.formatLanguageCode(e); n.options.supportedLngs && !n.isSupportedCode(r) || (t = r) } }), !t && this.options.supportedLngs && e.forEach(function (e) { if (!t) { var r = n.getLanguagePartFromCode(e); if (n.isSupportedCode(r)) return t = r; t = n.options.supportedLngs.find(function (e) { if (0 === e.indexOf(r)) return e }) } }), t || (t = this.getFallbackCodes(this.options.fallbackLng)[0]), t) : null } }, { key: "getFallbackCodes", value: function (e, t) { if (!e) return []; if ("function" == typeof e && (e = e(t)), "string" == typeof e && (e = [e]), "[object Array]" === Object.prototype.toString.apply(e)) return e; if (!t) return e.default || []; var n = e[t]; return n || (n = e[this.getScriptPartFromCode(t)]), n || (n = e[this.formatLanguageCode(t)]), n || (n = e[this.getLanguagePartFromCode(t)]), n || (n = e.default), n || [] } }, { key: "toResolveHierarchy", value: function (e, t) { var n = this, r = this.getFallbackCodes(t || this.options.fallbackLng || [], e), o = [], i = function (e) { e && (n.isSupportedCode(e) ? o.push(e) : n.logger.warn("rejecting language code not found in supportedLngs: ".concat(e))) }; return "string" == typeof e && e.indexOf("-") > -1 ? ("languageOnly" !== this.options.load && i(this.formatLanguageCode(e)), "languageOnly" !== this.options.load && "currentOnly" !== this.options.load && i(this.getScriptPartFromCode(e)), "currentOnly" !== this.options.load && i(this.getLanguagePartFromCode(e))) : "string" == typeof e && i(this.formatLanguageCode(e)), r.forEach(function (e) { o.indexOf(e) < 0 && i(n.formatLanguageCode(e)) }), o } }]), e }(), U = [{ lngs: ["ach", "ak", "am", "arn", "br", "fil", "gun", "ln", "mfe", "mg", "mi", "oc", "pt", "pt-BR", "tg", "tl", "ti", "tr", "uz", "wa"], nr: [1, 2], fc: 1 }, { lngs: ["af", "an", "ast", "az", "bg", "bn", "ca", "da", "de", "dev", "el", "en", "eo", "es", "et", "eu", "fi", "fo", "fur", "fy", "gl", "gu", "ha", "hi", "hu", "hy", "ia", "it", "kk", "kn", "ku", "lb", "mai", "ml", "mn", "mr", "nah", "nap", "nb", "ne", "nl", "nn", "no", "nso", "pa", "pap", "pms", "ps", "pt-PT", "rm", "sco", "se", "si", "so", "son", "sq", "sv", "sw", "ta", "te", "tk", "ur", "yo"], nr: [1, 2], fc: 2 }, { lngs: ["ay", "bo", "cgg", "fa", "ht", "id", "ja", "jbo", "ka", "km", "ko", "ky", "lo", "ms", "sah", "su", "th", "tt", "ug", "vi", "wo", "zh"], nr: [1], fc: 3 }, { lngs: ["be", "bs", "cnr", "dz", "hr", "ru", "sr", "uk"], nr: [1, 2, 5], fc: 4 }, { lngs: ["ar"], nr: [0, 1, 2, 3, 11, 100], fc: 5 }, { lngs: ["cs", "sk"], nr: [1, 2, 5], fc: 6 }, { lngs: ["csb", "pl"], nr: [1, 2, 5], fc: 7 }, { lngs: ["cy"], nr: [1, 2, 3, 8], fc: 8 }, { lngs: ["fr"], nr: [1, 2], fc: 9 }, { lngs: ["ga"], nr: [1, 2, 3, 7, 11], fc: 10 }, { lngs: ["gd"], nr: [1, 2, 3, 20], fc: 11 }, { lngs: ["is"], nr: [1, 2], fc: 12 }, { lngs: ["jv"], nr: [0, 1], fc: 13 }, { lngs: ["kw"], nr: [1, 2, 3, 4], fc: 14 }, { lngs: ["lt"], nr: [1, 2, 10], fc: 15 }, { lngs: ["lv"], nr: [1, 2, 0], fc: 16 }, { lngs: ["mk"], nr: [1, 2], fc: 17 }, { lngs: ["mnk"], nr: [0, 1, 2], fc: 18 }, { lngs: ["mt"], nr: [1, 2, 11, 20], fc: 19 }, { lngs: ["or"], nr: [2, 1], fc: 2 }, { lngs: ["ro"], nr: [1, 2, 20], fc: 20 }, { lngs: ["sl"], nr: [5, 1, 2, 3], fc: 21 }, { lngs: ["he", "iw"], nr: [1, 2, 20, 21], fc: 22 }], B = { 1: function (e) { return Number(e > 1) }, 2: function (e) { return Number(1 != e) }, 3: function (e) { return 0 }, 4: function (e) { return Number(e % 10 == 1 && e % 100 != 11 ? 0 : e % 10 >= 2 && e % 10 <= 4 && (e % 100 < 10 || e % 100 >= 20) ? 1 : 2) }, 5: function (e) { return Number(0 == e ? 0 : 1 == e ? 1 : 2 == e ? 2 : e % 100 >= 3 && e % 100 <= 10 ? 3 : e % 100 >= 11 ? 4 : 5) }, 6: function (e) { return Number(1 == e ? 0 : e >= 2 && e <= 4 ? 1 : 2) }, 7: function (e) { return Number(1 == e ? 0 : e % 10 >= 2 && e % 10 <= 4 && (e % 100 < 10 || e % 100 >= 20) ? 1 : 2) }, 8: function (e) { return Number(1 == e ? 0 : 2 == e ? 1 : 8 != e && 11 != e ? 2 : 3) }, 9: function (e) { return Number(e >= 2) }, 10: function (e) { return Number(1 == e ? 0 : 2 == e ? 1 : e < 7 ? 2 : e < 11 ? 3 : 4) }, 11: function (e) { return Number(1 == e || 11 == e ? 0 : 2 == e || 12 == e ? 1 : e > 2 && e < 20 ? 2 : 3) }, 12: function (e) { return Number(e % 10 != 1 || e % 100 == 11) }, 13: function (e) { return Number(0 !== e) }, 14: function (e) { return Number(1 == e ? 0 : 2 == e ? 1 : 3 == e ? 2 : 3) }, 15: function (e) { return Number(e % 10 == 1 && e % 100 != 11 ? 0 : e % 10 >= 2 && (e % 100 < 10 || e % 100 >= 20) ? 1 : 2) }, 16: function (e) { return Number(e % 10 == 1 && e % 100 != 11 ? 0 : 0 !== e ? 1 : 2) }, 17: function (e) { return Number(1 == e || e % 10 == 1 && e % 100 != 11 ? 0 : 1) }, 18: function (e) { return Number(0 == e ? 0 : 1 == e ? 1 : 2) }, 19: function (e) { return Number(1 == e ? 0 : 0 == e || e % 100 > 1 && e % 100 < 11 ? 1 : e % 100 > 10 && e % 100 < 20 ? 2 : 3) }, 20: function (e) { return Number(1 == e ? 0 : 0 == e || e % 100 > 0 && e % 100 < 20 ? 1 : 2) }, 21: function (e) { return Number(e % 100 == 1 ? 1 : e % 100 == 2 ? 2 : e % 100 == 3 || e % 100 == 4 ? 3 : 0) }, 22: function (e) { return Number(1 == e ? 0 : 2 == e ? 1 : (e < 0 || e > 10) && e % 10 == 0 ? 2 : 3) } }, K = ["v1", "v2", "v3"], M = { zero: 0, one: 1, two: 2, few: 3, many: 4, other: 5 }; var H = function () { function e(n) { var r, o = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {}; t(this, e), this.languageUtils = n, this.options = o, this.logger = g.create("pluralResolver"), this.options.compatibilityJSON && "v4" !== this.options.compatibilityJSON || "undefined" != typeof Intl && Intl.PluralRules || (this.options.compatibilityJSON = "v3", this.logger.error("Your environment seems not to be Intl API compatible, use an Intl.PluralRules polyfill. Will fallback to the compatibilityJSON v3 format handling.")), this.rules = (r = {}, U.forEach(function (e) { e.lngs.forEach(function (t) { r[t] = { numbers: e.nr, plurals: B[e.fc] } }) }), r) } return r(e, [{ key: "addRule", value: function (e, t) { this.rules[e] = t } }, { key: "getRule", value: function (e) { var t = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {}; if (this.shouldUseIntlApi()) try { return new Intl.PluralRules(e, { type: t.ordinal ? "ordinal" : "cardinal" }) } catch (e) { return } return this.rules[e] || this.rules[this.languageUtils.getLanguagePartFromCode(e)] } }, { key: "needsPlural", value: function (e) { var t = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {}, n = this.getRule(e, t); return this.shouldUseIntlApi() ? n && n.resolvedOptions().pluralCategories.length > 1 : n && n.numbers.length > 1 } }, { key: "getPluralFormsOfKey", value: function (e, t) { var n = arguments.length > 2 && void 0 !== arguments[2] ? arguments[2] : {}; return this.getSuffixes(e, n).map(function (e) { return "".concat(t).concat(e) }) } }, { key: "getSuffixes", value: function (e) { var t = this, n = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {}, r = this.getRule(e, n); return r ? this.shouldUseIntlApi() ? r.resolvedOptions().pluralCategories.sort(function (e, t) { return M[e] - M[t] }).map(function (e) { return "".concat(t.options.prepend).concat(e) }) : r.numbers.map(function (r) { return t.getSuffix(e, r, n) }) : [] } }, { key: "getSuffix", value: function (e, t) { var n = arguments.length > 2 && void 0 !== arguments[2] ? arguments[2] : {}, r = this.getRule(e, n); return r ? this.shouldUseIntlApi() ? "".concat(this.options.prepend).concat(r.select(t)) : this.getSuffixRetroCompatible(r, t) : (this.logger.warn("no plural rule found for: ".concat(e)), "") } }, { key: "getSuffixRetroCompatible", value: function (e, t) { var n = this, r = e.noAbs ? e.plurals(t) : e.plurals(Math.abs(t)), o = e.numbers[r]; this.options.simplifyPluralSuffix && 2 === e.numbers.length && 1 === e.numbers[0] && (2 === o ? o = "plural" : 1 === o && (o = "")); var i = function () { return n.options.prepend && o.toString() ? n.options.prepend + o.toString() : o.toString() }; return "v1" === this.options.compatibilityJSON ? 1 === o ? "" : "number" == typeof o ? "_plural_".concat(o.toString()) : i() : "v2" === this.options.compatibilityJSON ? i() : this.options.simplifyPluralSuffix && 2 === e.numbers.length && 1 === e.numbers[0] ? i() : this.options.prepend && r.toString() ? this.options.prepend + r.toString() : r.toString() } }, { key: "shouldUseIntlApi", value: function () { return !K.includes(this.options.compatibilityJSON) } }]), e }(); function z(e, t) { var n = Object.keys(e); if (Object.getOwnPropertySymbols) { var r = Object.getOwnPropertySymbols(e); t && (r = r.filter(function (t) { return Object.getOwnPropertyDescriptor(e, t).enumerable })), n.push.apply(n, r) } return n } function J(e) { for (var t = 1; t < arguments.length; t++) { var n = null != arguments[t] ? arguments[t] : {}; t % 2 ? z(Object(n), !0).forEach(function (t) { c(e, t, n[t]) }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(n)) : z(Object(n)).forEach(function (t) { Object.defineProperty(e, t, Object.getOwnPropertyDescriptor(n, t)) }) } return e } var _ = function () { function e() { var n = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : {}; t(this, e), this.logger = g.create("interpolator"), this.options = n, this.format = n.interpolation && n.interpolation.format || function (e) { return e }, this.init(n) } return r(e, [{ key: "init", value: function () { var e = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : {}; e.interpolation || (e.interpolation = { escapeValue: !0 }); var t = e.interpolation; this.escape = void 0 !== t.escape ? t.escape : x, this.escapeValue = void 0 === t.escapeValue || t.escapeValue, this.useRawValueToEscape = void 0 !== t.useRawValueToEscape && t.useRawValueToEscape, this.prefix = t.prefix ? k(t.prefix) : t.prefixEscaped || "{{", this.suffix = t.suffix ? k(t.suffix) : t.suffixEscaped || "}}", this.formatSeparator = t.formatSeparator ? t.formatSeparator : t.formatSeparator || ",", this.unescapePrefix = t.unescapeSuffix ? "" : t.unescapePrefix || "-", this.unescapeSuffix = this.unescapePrefix ? "" : t.unescapeSuffix || "", this.nestingPrefix = t.nestingPrefix ? k(t.nestingPrefix) : t.nestingPrefixEscaped || k("$t("), this.nestingSuffix = t.nestingSuffix ? k(t.nestingSuffix) : t.nestingSuffixEscaped || k(")"), this.nestingOptionsSeparator = t.nestingOptionsSeparator ? t.nestingOptionsSeparator : t.nestingOptionsSeparator || ",", this.maxReplaces = t.maxReplaces ? t.maxReplaces : 1e3, this.alwaysFormat = void 0 !== t.alwaysFormat && t.alwaysFormat, this.resetRegExp() } }, { key: "reset", value: function () { this.options && this.init(this.options) } }, { key: "resetRegExp", value: function () { var e = "".concat(this.prefix, "(.+?)").concat(this.suffix); this.regexp = new RegExp(e, "g"); var t = "".concat(this.prefix).concat(this.unescapePrefix, "(.+?)").concat(this.unescapeSuffix).concat(this.suffix); this.regexpUnescape = new RegExp(t, "g"); var n = "".concat(this.nestingPrefix, "(.+?)").concat(this.nestingSuffix); this.nestingRegexp = new RegExp(n, "g") } }, { key: "interpolate", value: function (e, t, n, r) { var o, i, a, s = this, u = this.options && this.options.interpolation && this.options.interpolation.defaultVariables || {}; function c(e) { return e.replace(/\$/g, "$$$$") } var l = function (e) { if (e.indexOf(s.formatSeparator) < 0) { var o = O(t, u, e); return s.alwaysFormat ? s.format(o, void 0, n, J(J(J({}, r), t), {}, { interpolationkey: e })) : o } var i = e.split(s.formatSeparator), a = i.shift().trim(), c = i.join(s.formatSeparator).trim(); return s.format(O(t, u, a), c, n, J(J(J({}, r), t), {}, { interpolationkey: a })) }; this.resetRegExp(); var f = r && r.missingInterpolationHandler || this.options.missingInterpolationHandler, p = r && r.interpolation && void 0 !== r.interpolation.skipOnVariables ? r.interpolation.skipOnVariables : this.options.interpolation.skipOnVariables; return [{ regex: this.regexpUnescape, safeValue: function (e) { return c(e) } }, { regex: this.regexp, safeValue: function (e) { return s.escapeValue ? c(s.escape(e)) : c(e) } }].forEach(function (t) { for (a = 0; o = t.regex.exec(e);) { var n = o[1].trim(); if (void 0 === (i = l(n))) if ("function" == typeof f) { var u = f(e, o, r); i = "string" == typeof u ? u : "" } else if (r && r.hasOwnProperty(n)) i = ""; else { if (p) { i = o[0]; continue } s.logger.warn("missed to pass in variable ".concat(n, " for interpolating ").concat(e)), i = "" } else "string" == typeof i || s.useRawValueToEscape || (i = v(i)); var c = t.safeValue(i); if (e = e.replace(o[0], c), p ? (t.regex.lastIndex += c.length, t.regex.lastIndex -= o[0].length) : t.regex.lastIndex = 0, ++a >= s.maxReplaces) break } }), e } }, { key: "nest", value: function (e, t) { var n, r, o = this, i = arguments.length > 2 && void 0 !== arguments[2] ? arguments[2] : {}, a = J({}, i); function s(e, t) { var n = this.nestingOptionsSeparator; if (e.indexOf(n) < 0) return e; var r = e.split(new RegExp("".concat(n, "[ ]*{"))), o = "{".concat(r[1]); e = r[0], o = (o = this.interpolate(o, a)).replace(/'/g, '"'); try { a = JSON.parse(o), t && (a = J(J({}, t), a)) } catch (t) { return this.logger.warn("failed parsing options string in nesting for key ".concat(e), t), "".concat(e).concat(n).concat(o) } return delete a.defaultValue, e } for (a.applyPostProcessor = !1, delete a.defaultValue; n = this.nestingRegexp.exec(e);) { var u = [], c = !1; if (-1 !== n[0].indexOf(this.formatSeparator) && !/{.*}/.test(n[1])) { var l = n[1].split(this.formatSeparator).map(function (e) { return e.trim() }); n[1] = l.shift(), u = l, c = !0 } if ((r = t(s.call(this, n[1].trim(), a), a)) && n[0] === e && "string" != typeof r) return r; "string" != typeof r && (r = v(r)), r || (this.logger.warn("missed to resolve ".concat(n[1], " for nesting ").concat(e)), r = ""), c && (r = u.reduce(function (e, t) { return o.format(e, t, i.lng, J(J({}, i), {}, { interpolationkey: n[1].trim() })) }, r.trim())), e = e.replace(n[0], r), this.regexp.lastIndex = 0 } return e } }]), e }(); function q(e, t) { (null == t || t > e.length) && (t = e.length); for (var n = 0, r = new Array(t); n < t; n++)r[n] = e[n]; return r } function $(e) { return function (e) { if (Array.isArray(e)) return e }(e) || function (e) { if ("undefined" != typeof Symbol && null != e[Symbol.iterator] || null != e["@@iterator"]) return Array.from(e) }(e) || function (e, t) { if (e) { if ("string" == typeof e) return q(e, t); var n = Object.prototype.toString.call(e).slice(8, -1); return "Object" === n && e.constructor && (n = e.constructor.name), "Map" === n || "Set" === n ? Array.from(e) : "Arguments" === n || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n) ? q(e, t) : void 0 } }(e) || function () { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.") }() } function W(e, t) { var n = Object.keys(e); if (Object.getOwnPropertySymbols) { var r = Object.getOwnPropertySymbols(e); t && (r = r.filter(function (t) { return Object.getOwnPropertyDescriptor(e, t).enumerable })), n.push.apply(n, r) } return n } function Y(e) { for (var t = 1; t < arguments.length; t++) { var n = null != arguments[t] ? arguments[t] : {}; t % 2 ? W(Object(n), !0).forEach(function (t) { c(e, t, n[t]) }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(n)) : W(Object(n)).forEach(function (t) { Object.defineProperty(e, t, Object.getOwnPropertyDescriptor(n, t)) }) } return e } var G = function () { function e() { var n = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : {}; t(this, e), this.logger = g.create("formatter"), this.options = n, this.formats = { number: function (e, t, n) { return new Intl.NumberFormat(t, n).format(e) }, currency: function (e, t, n) { return new Intl.NumberFormat(t, Y(Y({}, n), {}, { style: "currency" })).format(e) }, datetime: function (e, t, n) { return new Intl.DateTimeFormat(t, Y({}, n)).format(e) }, relativetime: function (e, t, n) { return new Intl.RelativeTimeFormat(t, Y({}, n)).format(e, n.range || "day") }, list: function (e, t, n) { return new Intl.ListFormat(t, Y({}, n)).format(e) } }, this.init(n) } return r(e, [{ key: "init", value: function (e) { var t = (arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : { interpolation: {} }).interpolation; this.formatSeparator = t.formatSeparator ? t.formatSeparator : t.formatSeparator || "," } }, { key: "add", value: function (e, t) { this.formats[e.toLowerCase().trim()] = t } }, { key: "format", value: function (e, t, n, r) { var o = this; return t.split(this.formatSeparator).reduce(function (e, t) { var i = function (e) { var t = e.toLowerCase().trim(), n = {}; if (e.indexOf("(") > -1) { var r = e.split("("); t = r[0].toLowerCase().trim(); var o = r[1].substring(0, r[1].length - 1); "currency" === t && o.indexOf(":") < 0 ? n.currency || (n.currency = o.trim()) : "relativetime" === t && o.indexOf(":") < 0 ? n.range || (n.range = o.trim()) : o.split(";").forEach(function (e) { if (e) { var t = $(e.split(":")), r = t[0], o = t.slice(1).join(":"); n[r.trim()] || (n[r.trim()] = o.trim()), "false" === o.trim() && (n[r.trim()] = !1), "true" === o.trim() && (n[r.trim()] = !0), isNaN(o.trim()) || (n[r.trim()] = parseInt(o.trim(), 10)) } }) } return { formatName: t, formatOptions: n } }(t), a = i.formatName, s = i.formatOptions; if (o.formats[a]) { var u = e; try { var c = r && r.formatParams && r.formatParams[r.interpolationkey] || {}, l = c.locale || c.lng || r.locale || r.lng || n; u = o.formats[a](e, l, Y(Y(Y({}, s), r), c)) } catch (e) { o.logger.warn(e) } return u } return o.logger.warn("there was no format function for ".concat(a)), e }, e) } }]), e }(); function Q(e, t) { var n = Object.keys(e); if (Object.getOwnPropertySymbols) { var r = Object.getOwnPropertySymbols(e); t && (r = r.filter(function (t) { return Object.getOwnPropertyDescriptor(e, t).enumerable })), n.push.apply(n, r) } return n } function X(e) { for (var t = 1; t < arguments.length; t++) { var n = null != arguments[t] ? arguments[t] : {}; t % 2 ? Q(Object(n), !0).forEach(function (t) { c(e, t, n[t]) }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(n)) : Q(Object(n)).forEach(function (t) { Object.defineProperty(e, t, Object.getOwnPropertyDescriptor(n, t)) }) } return e } function Z(e) { var t = function () { if ("undefined" == typeof Reflect || !Reflect.construct) return !1; if (Reflect.construct.sham) return !1; if ("function" == typeof Proxy) return !0; try { return Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () { })), !0 } catch (e) { return !1 } }(); return function () { var n, r = u(e); if (t) { var o = u(this).constructor; n = Reflect.construct(r, arguments, o) } else n = r.apply(this, arguments); return s(this, n) } } var ee = function (e) { a(i, h); var n = Z(i); function i(e, r, a) { var s, u = arguments.length > 3 && void 0 !== arguments[3] ? arguments[3] : {}; return t(this, i), s = n.call(this), S && h.call(o(s)), s.backend = e, s.store = r, s.services = a, s.languageUtils = a.languageUtils, s.options = u, s.logger = g.create("backendConnector"), s.waitingReads = [], s.maxParallelReads = u.maxParallelReads || 10, s.readingCalls = 0, s.state = {}, s.queue = [], s.backend && s.backend.init && s.backend.init(a, u.backend, u), s } return r(i, [{ key: "queueLoad", value: function (e, t, n, r) { var o = this, i = {}, a = {}, s = {}, u = {}; return e.forEach(function (e) { var r = !0; t.forEach(function (t) { var s = "".concat(e, "|").concat(t); !n.reload && o.store.hasResourceBundle(e, t) ? o.state[s] = 2 : o.state[s] < 0 || (1 === o.state[s] ? void 0 !== a[s] && (a[s] = !0) : (o.state[s] = 1, r = !1, a[s] = !0, i[s] = !0, u[t] = !0)) }), r || (s[e] = !0) }), (Object.keys(i).length || Object.keys(a).length) && this.queue.push({ pending: a, pendingCount: Object.keys(a).length, loaded: {}, errors: [], callback: r }), { toLoad: Object.keys(i), pending: Object.keys(a), toLoadLanguages: Object.keys(s), toLoadNamespaces: Object.keys(u) } } }, { key: "loaded", value: function (e, t, n) { var r = e.split("|"), o = r[0], i = r[1]; t && this.emit("failedLoading", o, i, t), n && this.store.addResourceBundle(o, i, n), this.state[e] = t ? -1 : 2; var a = {}; this.queue.forEach(function (n) { var r, s, u, c, l, f; r = n.loaded, s = i, c = y(r, [o], Object), l = c.obj, f = c.k, l[f] = l[f] || [], u && (l[f] = l[f].concat(s)), u || l[f].push(s), function (e, t) { delete e.pending[t], e.pendingCount-- }(n, e), t && n.errors.push(t), 0 !== n.pendingCount || n.done || (Object.keys(n.loaded).forEach(function (e) { a[e] || (a[e] = {}); var t = Object.keys(a[e]); t.length && t.forEach(function (n) { void 0 !== t[n] && (a[e][n] = !0) }) }), n.done = !0, n.errors.length ? n.callback(n.errors) : n.callback()) }), this.emit("loaded", a), this.queue = this.queue.filter(function (e) { return !e.done }) } }, { key: "read", value: function (e, t, n) { var r = this, o = arguments.length > 3 && void 0 !== arguments[3] ? arguments[3] : 0, i = arguments.length > 4 && void 0 !== arguments[4] ? arguments[4] : 350, a = arguments.length > 5 ? arguments[5] : void 0; return e.length ? this.readingCalls >= this.maxParallelReads ? void this.waitingReads.push({ lng: e, ns: t, fcName: n, tried: o, wait: i, callback: a }) : (this.readingCalls++, this.backend[n](e, t, function (s, u) { if (s && u && o < 5) setTimeout(function () { r.read.call(r, e, t, n, o + 1, 2 * i, a) }, i); else { if (r.readingCalls--, r.waitingReads.length > 0) { var c = r.waitingReads.shift(); r.read(c.lng, c.ns, c.fcName, c.tried, c.wait, c.callback) } a(s, u) } })) : a(null, {}) } }, { key: "prepareLoading", value: function (e, t) { var n = this, r = arguments.length > 2 && void 0 !== arguments[2] ? arguments[2] : {}, o = arguments.length > 3 ? arguments[3] : void 0; if (!this.backend) return this.logger.warn("No backend was added via i18next.use. Will not load resources."), o && o(); "string" == typeof e && (e = this.languageUtils.toResolveHierarchy(e)), "string" == typeof t && (t = [t]); var i = this.queueLoad(e, t, r, o); if (!i.toLoad.length) return i.pending.length || o(), null; i.toLoad.forEach(function (e) { n.loadOne(e) }) } }, { key: "load", value: function (e, t, n) { this.prepareLoading(e, t, {}, n) } }, { key: "reload", value: function (e, t, n) { this.prepareLoading(e, t, { reload: !0 }, n) } }, { key: "loadOne", value: function (e) { var t = this, n = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : "", r = e.split("|"), o = r[0], i = r[1]; this.read(o, i, "read", void 0, void 0, function (r, a) { r && t.logger.warn("".concat(n, "loading namespace ").concat(i, " for language ").concat(o, " failed"), r), !r && a && t.logger.log("".concat(n, "loaded namespace ").concat(i, " for language ").concat(o), a), t.loaded(e, r, a) }) } }, { key: "saveMissing", value: function (e, t, n, r, o) { var i = arguments.length > 5 && void 0 !== arguments[5] ? arguments[5] : {}; this.services.utils && this.services.utils.hasLoadedNamespace && !this.services.utils.hasLoadedNamespace(t) ? this.logger.warn('did not save key "'.concat(n, '" as the namespace "').concat(t, '" was not yet loaded'), "This means something IS WRONG in your setup. You access the t function before i18next.init / i18next.loadNamespace / i18next.changeLanguage was done. Wait for the callback or Promise to resolve before accessing it!!!") : null != n && "" !== n && (this.backend && this.backend.create && this.backend.create(e, t, n, r, null, X(X({}, i), {}, { isUpdate: o })), e && e[0] && this.store.addResource(e[0], t, n, r)) } }]), i }(); function te(e) { return "string" == typeof e.ns && (e.ns = [e.ns]), "string" == typeof e.fallbackLng && (e.fallbackLng = [e.fallbackLng]), "string" == typeof e.fallbackNS && (e.fallbackNS = [e.fallbackNS]), e.supportedLngs && e.supportedLngs.indexOf("cimode") < 0 && (e.supportedLngs = e.supportedLngs.concat(["cimode"])), e } function ne(e, t) { var n = Object.keys(e); if (Object.getOwnPropertySymbols) { var r = Object.getOwnPropertySymbols(e); t && (r = r.filter(function (t) { return Object.getOwnPropertyDescriptor(e, t).enumerable })), n.push.apply(n, r) } return n } function re(e) { for (var t = 1; t < arguments.length; t++) { var n = null != arguments[t] ? arguments[t] : {}; t % 2 ? ne(Object(n), !0).forEach(function (t) { c(e, t, n[t]) }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(n)) : ne(Object(n)).forEach(function (t) { Object.defineProperty(e, t, Object.getOwnPropertyDescriptor(n, t)) }) } return e } function oe(e) { var t = function () { if ("undefined" == typeof Reflect || !Reflect.construct) return !1; if (Reflect.construct.sham) return !1; if ("function" == typeof Proxy) return !0; try { return Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () { })), !0 } catch (e) { return !1 } }(); return function () { var n, r = u(e); if (t) { var o = u(this).constructor; n = Reflect.construct(r, arguments, o) } else n = r.apply(this, arguments); return s(this, n) } } function ie() { } var ae = function (n) { a(u, h); var i = oe(u); function u() { var e, n, r = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : {}, a = arguments.length > 1 ? arguments[1] : void 0; if (t(this, u), e = i.call(this), S && h.call(o(e)), e.options = te(r), e.services = {}, e.logger = g, e.modules = { external: [] }, n = o(e), Object.getOwnPropertyNames(Object.getPrototypeOf(n)).forEach(function (e) { "function" == typeof n[e] && (n[e] = n[e].bind(n)) }), a && !e.isInitialized && !r.isClone) { if (!e.options.initImmediate) return e.init(r, a), s(e, o(e)); setTimeout(function () { e.init(r, a) }, 0) } return e } return r(u, [{ key: "init", value: function () { var t = this, n = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : {}, r = arguments.length > 1 ? arguments[1] : void 0; "function" == typeof n && (r = n, n = {}), !n.defaultNS && n.ns && ("string" == typeof n.ns ? n.defaultNS = n.ns : n.ns.indexOf("translation") < 0 && (n.defaultNS = n.ns[0])); var o = { debug: !1, initImmediate: !0, ns: ["translation"], defaultNS: ["translation"], fallbackLng: ["dev"], fallbackNS: !1, supportedLngs: !1, nonExplicitSupportedLngs: !1, load: "all", preload: !1, simplifyPluralSuffix: !0, keySeparator: ".", nsSeparator: ":", pluralSeparator: "_", contextSeparator: "_", partialBundledLanguages: !1, saveMissing: !1, updateMissing: !1, saveMissingTo: "fallback", saveMissingPlurals: !0, missingKeyHandler: !1, missingInterpolationHandler: !1, postProcess: !1, postProcessPassResolved: !1, returnNull: !0, returnEmptyString: !0, returnObjects: !1, joinArrays: !1, returnedObjectHandler: !1, parseMissingKeyHandler: !1, appendNamespaceToMissingKey: !1, appendNamespaceToCIMode: !1, overloadTranslationOptionHandler: function (t) { var n = {}; if ("object" === e(t[1]) && (n = t[1]), "string" == typeof t[1] && (n.defaultValue = t[1]), "string" == typeof t[2] && (n.tDescription = t[2]), "object" === e(t[2]) || "object" === e(t[3])) { var r = t[3] || t[2]; Object.keys(r).forEach(function (e) { n[e] = r[e] }) } return n }, interpolation: { escapeValue: !0, format: function (e, t, n, r) { return e }, prefix: "{{", suffix: "}}", formatSeparator: ",", unescapePrefix: "-", nestingPrefix: "$t(", nestingSuffix: ")", nestingOptionsSeparator: ",", maxReplaces: 1e3, skipOnVariables: !0 } }; function i(e) { return e ? "function" == typeof e ? new e : e : null } if (this.options = re(re(re({}, o), this.options), te(n)), "v1" !== this.options.compatibilityAPI && (this.options.interpolation = re(re({}, o.interpolation), this.options.interpolation)), void 0 !== n.keySeparator && (this.options.userDefinedKeySeparator = n.keySeparator), void 0 !== n.nsSeparator && (this.options.userDefinedNsSeparator = n.nsSeparator), !this.options.isClone) { var a; this.modules.logger ? g.init(i(this.modules.logger), this.options) : g.init(null, this.options), this.modules.formatter ? a = this.modules.formatter : "undefined" != typeof Intl && (a = G); var s = new T(this.options); this.store = new N(this.options.resources, this.options); var u = this.services; u.logger = g, u.resourceStore = this.store, u.languageUtils = s, u.pluralResolver = new H(s, { prepend: this.options.pluralSeparator, compatibilityJSON: this.options.compatibilityJSON, simplifyPluralSuffix: this.options.simplifyPluralSuffix }), !a || this.options.interpolation.format && this.options.interpolation.format !== o.interpolation.format || (u.formatter = i(a), u.formatter.init(u, this.options), this.options.interpolation.format = u.formatter.format.bind(u.formatter)), u.interpolator = new _(this.options), u.utils = { hasLoadedNamespace: this.hasLoadedNamespace.bind(this) }, u.backendConnector = new ee(i(this.modules.backend), u.resourceStore, u, this.options), u.backendConnector.on("*", function (e) { for (var n = arguments.length, r = new Array(n > 1 ? n - 1 : 0), o = 1; o < n; o++)r[o - 1] = arguments[o]; t.emit.apply(t, [e].concat(r)) }), this.modules.languageDetector && (u.languageDetector = i(this.modules.languageDetector), u.languageDetector.init(u, this.options.detection, this.options)), this.modules.i18nFormat && (u.i18nFormat = i(this.modules.i18nFormat), u.i18nFormat.init && u.i18nFormat.init(this)), this.translator = new A(this.services, this.options), this.translator.on("*", function (e) { for (var n = arguments.length, r = new Array(n > 1 ? n - 1 : 0), o = 1; o < n; o++)r[o - 1] = arguments[o]; t.emit.apply(t, [e].concat(r)) }), this.modules.external.forEach(function (e) { e.init && e.init(t) }) } if (this.format = this.options.interpolation.format, r || (r = ie), this.options.fallbackLng && !this.services.languageDetector && !this.options.lng) { var c = this.services.languageUtils.getFallbackCodes(this.options.fallbackLng); c.length > 0 && "dev" !== c[0] && (this.options.lng = c[0]) } this.services.languageDetector || this.options.lng || this.logger.warn("init: no languageDetector is used and no lng is defined");["getResource", "hasResourceBundle", "getResourceBundle", "getDataByLanguage"].forEach(function (e) { t[e] = function () { var n; return (n = t.store)[e].apply(n, arguments) } });["addResource", "addResources", "addResourceBundle", "removeResourceBundle"].forEach(function (e) { t[e] = function () { var n; return (n = t.store)[e].apply(n, arguments), t } }); var l = d(), f = function () { var e = function (e, n) { t.isInitialized && !t.initializedStoreOnce && t.logger.warn("init: i18next is already initialized. You should call init just once!"), t.isInitialized = !0, t.options.isClone || t.logger.log("initialized", t.options), t.emit("initialized", t.options), l.resolve(n), r(e, n) }; if (t.languages && "v1" !== t.options.compatibilityAPI && !t.isInitialized) return e(null, t.t.bind(t)); t.changeLanguage(t.options.lng, e) }; return this.options.resources || !this.options.initImmediate ? f() : setTimeout(f, 0), l } }, { key: "loadResources", value: function (e) { var t = this, n = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : ie, r = "string" == typeof e ? e : this.language; if ("function" == typeof e && (n = e), !this.options.resources || this.options.partialBundledLanguages) { if (r && "cimode" === r.toLowerCase()) return n(); var o = [], i = function (e) { e && t.services.languageUtils.toResolveHierarchy(e).forEach(function (e) { o.indexOf(e) < 0 && o.push(e) }) }; if (r) i(r); else this.services.languageUtils.getFallbackCodes(this.options.fallbackLng).forEach(function (e) { return i(e) }); this.options.preload && this.options.preload.forEach(function (e) { return i(e) }), this.services.backendConnector.load(o, this.options.ns, function (e) { e || t.resolvedLanguage || !t.language || t.setResolvedLanguage(t.language), n(e) }) } else n(null) } }, { key: "reloadResources", value: function (e, t, n) { var r = d(); return e || (e = this.languages), t || (t = this.options.ns), n || (n = ie), this.services.backendConnector.reload(e, t, function (e) { r.resolve(), n(e) }), r } }, { key: "use", value: function (e) { if (!e) throw new Error("You are passing an undefined module! Please check the object you are passing to i18next.use()"); if (!e.type) throw new Error("You are passing a wrong module! Please check the object you are passing to i18next.use()"); return "backend" === e.type && (this.modules.backend = e), ("logger" === e.type || e.log && e.warn && e.error) && (this.modules.logger = e), "languageDetector" === e.type && (this.modules.languageDetector = e), "i18nFormat" === e.type && (this.modules.i18nFormat = e), "postProcessor" === e.type && C.addPostProcessor(e), "formatter" === e.type && (this.modules.formatter = e), "3rdParty" === e.type && this.modules.external.push(e), this } }, { key: "setResolvedLanguage", value: function (e) { if (e && this.languages && !(["cimode", "dev"].indexOf(e) > -1)) for (var t = 0; t < this.languages.length; t++) { var n = this.languages[t]; if (!(["cimode", "dev"].indexOf(n) > -1) && this.store.hasLanguageSomeTranslations(n)) { this.resolvedLanguage = n; break } } } }, { key: "changeLanguage", value: function (e, t) { var n = this; this.isLanguageChangingTo = e; var r = d(); this.emit("languageChanging", e); var o = function (e) { n.language = e, n.languages = n.services.languageUtils.toResolveHierarchy(e), n.resolvedLanguage = void 0, n.setResolvedLanguage(e) }, i = function (i) { e || i || !n.services.languageDetector || (i = []); var a = "string" == typeof i ? i : n.services.languageUtils.getBestMatchFromCodes(i); a && (n.language || o(a), n.translator.language || n.translator.changeLanguage(a), n.services.languageDetector && n.services.languageDetector.cacheUserLanguage(a)), n.loadResources(a, function (e) { !function (e, i) { i ? (o(i), n.translator.changeLanguage(i), n.isLanguageChangingTo = void 0, n.emit("languageChanged", i), n.logger.log("languageChanged", i)) : n.isLanguageChangingTo = void 0, r.resolve(function () { return n.t.apply(n, arguments) }), t && t(e, function () { return n.t.apply(n, arguments) }) }(e, a) }) }; return e || !this.services.languageDetector || this.services.languageDetector.async ? !e && this.services.languageDetector && this.services.languageDetector.async ? this.services.languageDetector.detect(i) : i(e) : i(this.services.languageDetector.detect()), r } }, { key: "getFixedT", value: function (t, n, r) { var o = this, i = function t(n, i) { var a; if ("object" !== e(i)) { for (var s = arguments.length, u = new Array(s > 2 ? s - 2 : 0), c = 2; c < s; c++)u[c - 2] = arguments[c]; a = o.options.overloadTranslationOptionHandler([n, i].concat(u)) } else a = re({}, i); a.lng = a.lng || t.lng, a.lngs = a.lngs || t.lngs, a.ns = a.ns || t.ns; var l = o.options.keySeparator || ".", f = r ? "".concat(r).concat(l).concat(n) : n; return o.t(f, a) }; return "string" == typeof t ? i.lng = t : i.lngs = t, i.ns = n, i.keyPrefix = r, i } }, { key: "t", value: function () { var e; return this.translator && (e = this.translator).translate.apply(e, arguments) } }, { key: "exists", value: function () { var e; return this.translator && (e = this.translator).exists.apply(e, arguments) } }, { key: "setDefaultNamespace", value: function (e) { this.options.defaultNS = e } }, { key: "hasLoadedNamespace", value: function (e) { var t = this, n = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {}; if (!this.isInitialized) return this.logger.warn("hasLoadedNamespace: i18next was not initialized", this.languages), !1; if (!this.languages || !this.languages.length) return this.logger.warn("hasLoadedNamespace: i18n.languages were undefined or empty", this.languages), !1; var r = this.resolvedLanguage || this.languages[0], o = !!this.options && this.options.fallbackLng, i = this.languages[this.languages.length - 1]; if ("cimode" === r.toLowerCase()) return !0; var a = function (e, n) { var r = t.services.backendConnector.state["".concat(e, "|").concat(n)]; return -1 === r || 2 === r }; if (n.precheck) { var s = n.precheck(this, a); if (void 0 !== s) return s } return !!this.hasResourceBundle(r, e) || (!(this.services.backendConnector.backend && (!this.options.resources || this.options.partialBundledLanguages)) || !(!a(r, e) || o && !a(i, e))) } }, { key: "loadNamespaces", value: function (e, t) { var n = this, r = d(); return this.options.ns ? ("string" == typeof e && (e = [e]), e.forEach(function (e) { n.options.ns.indexOf(e) < 0 && n.options.ns.push(e) }), this.loadResources(function (e) { r.resolve(), t && t(e) }), r) : (t && t(), Promise.resolve()) } }, { key: "loadLanguages", value: function (e, t) { var n = d(); "string" == typeof e && (e = [e]); var r = this.options.preload || [], o = e.filter(function (e) { return r.indexOf(e) < 0 }); return o.length ? (this.options.preload = r.concat(o), this.loadResources(function (e) { n.resolve(), t && t(e) }), n) : (t && t(), Promise.resolve()) } }, { key: "dir", value: function (e) { if (e || (e = this.resolvedLanguage || (this.languages && this.languages.length > 0 ? this.languages[0] : this.language)), !e) return "rtl"; return ["ar", "shu", "sqr", "ssh", "xaa", "yhd", "yud", "aao", "abh", "abv", "acm", "acq", "acw", "acx", "acy", "adf", "ads", "aeb", "aec", "afb", "ajp", "apc", "apd", "arb", "arq", "ars", "ary", "arz", "auz", "avl", "ayh", "ayl", "ayn", "ayp", "bbz", "pga", "he", "iw", "ps", "pbt", "pbu", "pst", "prp", "prd", "ug", "ur", "ydd", "yds", "yih", "ji", "yi", "hbo", "men", "xmn", "fa", "jpr", "peo", "pes", "prs", "dv", "sam", "ckb"].indexOf(this.services.languageUtils.getLanguagePartFromCode(e)) > -1 || e.toLowerCase().indexOf("-arab") > 1 ? "rtl" : "ltr" } }, { key: "cloneInstance", value: function () { var e = this, t = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : {}, n = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : ie, r = re(re(re({}, this.options), t), { isClone: !0 }), o = new u(r); return ["store", "services", "language"].forEach(function (t) { o[t] = e[t] }), o.services = re({}, this.services), o.services.utils = { hasLoadedNamespace: o.hasLoadedNamespace.bind(o) }, o.translator = new A(o.services, o.options), o.translator.on("*", function (e) { for (var t = arguments.length, n = new Array(t > 1 ? t - 1 : 0), r = 1; r < t; r++)n[r - 1] = arguments[r]; o.emit.apply(o, [e].concat(n)) }), o.init(r, n), o.translator.options = o.options, o.translator.backendConnector.services.utils = { hasLoadedNamespace: o.hasLoadedNamespace.bind(o) }, o } }, { key: "toJSON", value: function () { return { options: this.options, store: this.store, language: this.language, languages: this.languages, resolvedLanguage: this.resolvedLanguage } } }]), u }(); c(ae, "createInstance", function () { var e = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : {}, t = arguments.length > 1 ? arguments[1] : void 0; return new ae(e, t) }); var se = ae.createInstance(); return se.createInstance = ae.createInstance, se });


//Included:lib/011.vue-i18next-v0.15.2.js
(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
        typeof define === 'function' && define.amd ? define(factory) :
            (global.VueI18next = factory());
}(this, (function () {
    'use strict';

    var isMergeableObject = function isMergeableObject(value) {
        return isNonNullObject(value)
            && !isSpecial(value)
    };

    function isNonNullObject(value) {
        return !!value && typeof value === 'object'
    }

    function isSpecial(value) {
        var stringValue = Object.prototype.toString.call(value);

        return stringValue === '[object RegExp]'
            || stringValue === '[object Date]'
            || isReactElement(value)
    }

    // see https://github.com/facebook/react/blob/b5ac963fb791d1298e7f396236383bc955f916c1/src/isomorphic/classic/element/ReactElement.js#L21-L25
    var canUseSymbol = typeof Symbol === 'function' && Symbol.for;
    var REACT_ELEMENT_TYPE = canUseSymbol ? Symbol.for('react.element') : 0xeac7;

    function isReactElement(value) {
        return value.$$typeof === REACT_ELEMENT_TYPE
    }

    function emptyTarget(val) {
        return Array.isArray(val) ? [] : {}
    }

    function cloneUnlessOtherwiseSpecified(value, options) {
        return (options.clone !== false && options.isMergeableObject(value))
            ? deepmerge(emptyTarget(value), value, options)
            : value
    }

    function defaultArrayMerge(target, source, options) {
        return target.concat(source).map(function (element) {
            return cloneUnlessOtherwiseSpecified(element, options)
        })
    }

    function mergeObject(target, source, options) {
        var destination = {};
        if (options.isMergeableObject(target)) {
            Object.keys(target).forEach(function (key) {
                destination[key] = cloneUnlessOtherwiseSpecified(target[key], options);
            });
        }
        Object.keys(source).forEach(function (key) {
            if (!options.isMergeableObject(source[key]) || !target[key]) {
                destination[key] = cloneUnlessOtherwiseSpecified(source[key], options);
            } else {
                destination[key] = deepmerge(target[key], source[key], options);
            }
        });
        return destination
    }

    function deepmerge(target, source, options) {
        options = options || {};
        options.arrayMerge = options.arrayMerge || defaultArrayMerge;
        options.isMergeableObject = options.isMergeableObject || isMergeableObject;

        var sourceIsArray = Array.isArray(source);
        var targetIsArray = Array.isArray(target);
        var sourceAndTargetTypesMatch = sourceIsArray === targetIsArray;

        if (!sourceAndTargetTypesMatch) {
            return cloneUnlessOtherwiseSpecified(source, options)
        } else if (sourceIsArray) {
            return options.arrayMerge(target, source, options)
        } else {
            return mergeObject(target, source, options)
        }
    }

    deepmerge.all = function deepmergeAll(array, options) {
        if (!Array.isArray(array)) {
            throw new Error('first argument should be an array')
        }

        return array.reduce(function (prev, next) {
            return deepmerge(prev, next, options)
        }, {})
    };

    var deepmerge_1 = deepmerge;

    var component = {
        name: 'i18next',
        functional: true,
        props: {
            tag: {
                type: String,
                default: 'span'
            },
            path: {
                type: String,
                required: true
            },
            options: {
                type: Object
            }
        },
        render: function render(h, ref) {
            var props = ref.props;
            var data = ref.data;
            var children = ref.children;
            var parent = ref.parent;

            var i18next = parent.$i18n;
            var $t = parent.$t.bind(parent);
            if (!i18next || !$t) {
                return h(props.tag, data, children);
            }

            var path = props.path;
            var options = props.options || {};

            var REGEXP = i18next.i18next.services.interpolator.regexp;
            var i18nextOptions = Object.assign({}, options,
                { interpolation: { prefix: '#$?', suffix: '?$#' } });
            var format = $t(path, i18nextOptions);
            var tchildren = [];

            format.split(REGEXP).reduce(function (memo, match, index) {
                var child;
                if (index % 2 === 0) {
                    if (match.length === 0) { return memo; }

                    child = match;
                } else {
                    var place = match.trim();
                    // eslint-disable-next-line no-restricted-globals
                    if (isNaN(parseFloat(place)) || !isFinite(place)) {
                        children.forEach(function (e) {
                            if (
                                !child &&
                                e.data.attrs &&
                                e.data.attrs.place &&
                                e.data.attrs.place === place
                            ) {
                                child = e;
                            }
                        });
                    } else {
                        child = children[parseInt(match, 10)];
                    }
                }

                memo.push(child);
                return memo;
            }, tchildren);

            return h(props.tag, data, tchildren);
        }
    };

    /* eslint-disable import/prefer-default-export */

    function log(message) {
        if (typeof console !== 'undefined') {
            console.warn(message); // eslint-disable-line no-console
        }
    }

    function warn(message) {
        log(("[vue-i18next warn]: " + message));
    }

    function deprecate(message) {
        log(("[vue-i18next deprecated]: " + message));
    }

    /* eslint-disable no-param-reassign, no-unused-vars */

    function equalLanguage(el, vnode) {
        var vm = vnode.context;
        return el._i18nLanguage === vm.$i18n.i18next.language;
    }

    function equalValue(value, oldValue) {
        if (value === oldValue) {
            return true;
        }
        if (value && oldValue) {
            return (
                value.path === oldValue.path &&
                value.language === oldValue.language &&
                value.args === oldValue.args
            );
        }
    }

    function assert(vnode) {
        var vm = vnode.context;

        if (!vm.$i18n) {
            warn('No VueI18Next instance found in the Vue instance');
            return false;
        }

        return true;
    }

    function parseValue(value) {
        var assign;

        var path;
        var language;
        var args;

        if (typeof value === 'string') {
            path = value;
        } else if (toString.call(value) === '[object Object]') {
            ((assign = value, path = assign.path, language = assign.language, args = assign.args));
        }

        return { path: path, language: language, args: args };
    }

    function t(el, binding, vnode) {
        var value = binding.value;

        var ref = parseValue(value);
        var path = ref.path;
        var language = ref.language;
        var args = ref.args;
        if (!path && !language && !args) {
            warn('v-t: invalid value');
            return;
        }

        if (!path) {
            warn('v-t: "path" is required');
            return;
        }

        if (language) {
            deprecate("v-t: \"language\" is deprecated.Use the \"lng\" property in args.\n      https://www.i18next.com/overview/configuration-options#configuration-options");
        }

        var vm = vnode.context;
        el.textContent = vm.$i18n.i18next.t(path, Object.assign({}, (language ? { lng: language } : {}),
            args));

        el._i18nLanguage = vm.$i18n.i18next.language;
    }

    function bind(el, binding, vnode) {
        if (!assert(vnode)) {
            return;
        }

        t(el, binding, vnode);
    }

    function update(el, binding, vnode, oldVNode) {
        if (equalLanguage(el, vnode) && equalValue(binding.value, binding.oldValue)) {
            return;
        }

        t(el, binding, vnode);
    }

    var directive = {
        bind: bind,
        update: update
    };

    /* eslint-disable no-param-reassign, no-unused-vars */

    function assert$1(vnode) {
        var vm = vnode.context;

        if (!vm.$i18n) {
            warn('No VueI18Next instance found in the Vue instance');
            return false;
        }

        return true;
    }

    function waitForIt(el, vnode) {
        if (vnode.context.$i18n.i18next.isInitialized) {
            el.hidden = false;
        } else {
            el.hidden = true;
            var initialized = function () {
                vnode.context.$forceUpdate();
                // due to emitter removing issue in i18next we need to delay remove
                setTimeout(function () {
                    if (vnode.context && vnode.context.$i18n) {
                        vnode.context.$i18n.i18next.off('initialized', initialized);
                    }
                }, 1000);
            };
            vnode.context.$i18n.i18next.on('initialized', initialized);
        }
    }

    function bind$1(el, binding, vnode) {
        if (!assert$1(vnode)) {
            return;
        }

        waitForIt(el, vnode);
    }

    function update$1(el, binding, vnode, oldVNode) {
        if (vnode.context.$i18n.i18next.isInitialized) {
            el.hidden = false;
        }
    }

    var waitDirective = {
        bind: bind$1,
        update: update$1
    };

    /* eslint-disable import/no-mutable-exports */

    var Vue;

    function install(_Vue) {
        if (install.installed) {
            return;
        }
        install.installed = true;

        Vue = _Vue;

        var getByKey = function (i18nOptions, i18nextOptions) {
            return function (key) {
                if (
                    i18nOptions &&
                    i18nOptions.keyPrefix &&
                    !key.includes(i18nextOptions.nsSeparator)
                ) {
                    return ((i18nOptions.keyPrefix) + "." + key);
                }
                return key;
            };
        };

        var getComponentNamespace = function (vm) {
            var namespace = vm.$options.name || vm.$options._componentTag;
            if (namespace) {
                return {
                    namespace: namespace,
                    loadNamespace: true
                };
            }

            return {
                namespace: ("" + (Math.random()))
            };
        };

        Vue.mixin({
            beforeCreate: function beforeCreate() {
                var this$1 = this;

                var options = this.$options;
                if (options.i18n) {
                    this._i18n = options.i18n;
                } else if (options.parent && options.parent.$i18n) {
                    this._i18n = options.parent.$i18n;
                }
                var inlineTranslations = {};

                if (this._i18n) {
                    var getNamespace =
                        this._i18n.options.getComponentNamespace || getComponentNamespace;
                    var ref = getNamespace(this);
                    var namespace = ref.namespace;
                    var loadNamespace = ref.loadNamespace;

                    if (options.__i18n) {
                        options.__i18n.forEach(function (resource) {
                            inlineTranslations = deepmerge_1(
                                inlineTranslations,
                                JSON.parse(resource)
                            );
                        });
                    }

                    if (options.i18nOptions) {
                        var ref$1 = this.$options.i18nOptions;
                        var lng = ref$1.lng; if (lng === void 0) lng = null;
                        var keyPrefix = ref$1.keyPrefix; if (keyPrefix === void 0) keyPrefix = null;
                        var messages = ref$1.messages;
                        var ref$2 = this.$options.i18nOptions;
                        var namespaces = ref$2.namespaces;
                        namespaces = namespaces || this._i18n.i18next.options.defaultNS;

                        if (typeof namespaces === 'string') { namespaces = [namespaces]; }
                        var namespacesToLoad = namespaces.concat([namespace]);

                        if (messages) {
                            inlineTranslations = deepmerge_1(inlineTranslations, messages);
                        }

                        this._i18nOptions = { lng: lng, namespaces: namespacesToLoad, keyPrefix: keyPrefix };
                        this._i18n.i18next.loadNamespaces(namespaces);
                    } else if (options.parent && options.parent._i18nOptions) {
                        this._i18nOptions = Object.assign({}, options.parent._i18nOptions);
                        this._i18nOptions.namespaces = [
                            namespace].concat(this._i18nOptions.namespaces
                            );
                    } else if (options.__i18n) {
                        this._i18nOptions = { namespaces: [namespace] };
                    }

                    if (loadNamespace && this._i18n.options.loadComponentNamespace) {
                        this._i18n.i18next.loadNamespaces([namespace]);
                    }

                    var languages = Object.keys(inlineTranslations);
                    languages.forEach(function (lang) {
                        this$1._i18n.i18next.addResourceBundle(
                            lang,
                            namespace,
                            Object.assign({}, inlineTranslations[lang]),
                            true,
                            false
                        );
                    });
                }

                var getKey = getByKey(
                    this._i18nOptions,
                    this._i18n ? this._i18n.i18next.options : {}
                );

                if (this._i18nOptions && this._i18nOptions.namespaces) {
                    var ref$3 = this._i18nOptions;
                    var lng$1 = ref$3.lng;
                    var namespaces$1 = ref$3.namespaces;

                    var fixedT = this._i18n.i18next.getFixedT(lng$1, namespaces$1);
                    this._getI18nKey = function (key, i18nextOptions) { return fixedT(getKey(key), i18nextOptions, this$1._i18n.i18nLoadedAt); };
                } else {
                    this._getI18nKey = function (key, i18nextOptions) { return this$1._i18n.t(getKey(key), i18nextOptions, this$1._i18n.i18nLoadedAt); };
                }
            }
        });

        // extend Vue.js
        if (!Object.prototype.hasOwnProperty.call(Vue.prototype, '$i18n')) {
            Object.defineProperty(Vue.prototype, '$i18n', {
                get: function get() {
                    return this._i18n;
                }
            });
        }

        Vue.prototype.$t = function t(key, options) {
            return this._getI18nKey(key, options);
        };

        Vue.component(component.name, component);
        Vue.directive('t', directive);
        Vue.directive('waitForT', waitDirective);
    }

    var VueI18n = function VueI18n(i18next, opts) {
        if (opts === void 0) opts = {};

        var options = Object.assign({}, {
            bindI18n: 'languageChanged loaded',
            bindStore: 'added removed',
            loadComponentNamespace: false
        },
            opts);

        this._vm = null;
        this.i18next = i18next;
        this.options = options;

        this.onI18nChanged = this.onI18nChanged.bind(this);

        if (options.bindI18n) {
            this.i18next.on(options.bindI18n, this.onI18nChanged);
        }
        if (options.bindStore && this.i18next.store) {
            this.i18next.store.on(options.bindStore, this.onI18nChanged);
        }

        this.resetVM({ i18nLoadedAt: new Date() });
    };

    var prototypeAccessors = { i18nLoadedAt: { configurable: true } };

    VueI18n.prototype.resetVM = function resetVM(data) {
        var oldVM = this._vm;
        var ref = Vue.config;
        var silent = ref.silent;
        Vue.config.silent = true;
        this._vm = new Vue({ data: data });
        Vue.config.silent = silent;
        if (oldVM) {
            Vue.nextTick(function () { return oldVM.$destroy(); });
        }
    };

    prototypeAccessors.i18nLoadedAt.get = function () {
        return this._vm.$data.i18nLoadedAt;
    };

    prototypeAccessors.i18nLoadedAt.set = function (date) {
        this._vm.$set(this._vm, 'i18nLoadedAt', date);
    };

    VueI18n.prototype.t = function t(key, options) {
        return this.i18next.t(key, options);
    };

    VueI18n.prototype.onI18nChanged = function onI18nChanged() {
        this.i18nLoadedAt = new Date();
    };

    Object.defineProperties(VueI18n.prototype, prototypeAccessors);

    VueI18n.install = install;
    VueI18n.version = "0.15.2";

    /* istanbul ignore if */
    if (typeof window !== 'undefined' && window.Vue) {
        window.Vue.use(VueI18n);
    }

    return VueI18n;

})));


//Included:lib/500.castelog.v1.inicializacion.part.js
/*lib:castelog@0.0.1*/
const Castelog = (function(factory, scope) {
    const output = factory.call(scope);
    if(typeof window === "object") {
        window["Castelog"] = output;
    }
    if(typeof global === "object") {
        global["Castelog"] = output;
    }
    if(typeof module === "object") {
        module.exports = output;
    }
    return output;
})(function() {
    if((typeof(window) !== "undefined") && (typeof(window.Castelog) !== "undefined")) {
        return window.Castelog;
    }
    if((typeof(global) !== "undefined") && (typeof(global.Castelog) !== "undefined")) {
        return global.Castelog;
    }
    
    const globalmente = (typeof(window) !== "undefined") ? window : (typeof(global) !== "undefined") ? global : this;
    const Castelog = {
        globalmente,
        metodos: {},
        modulos: {},
        variables: {
            noop: function() {},
            SimplestDB: globalmente.SimplestDB,
            axios: globalmente.axios,
            ejs: globalmente.ejs,
        },
        compilacion: {
  "ruta_del_sistema": "/home/carlos/Escritorio/Castelog/official",
  "sistema_operativo": "",
  "fecha": "2022/50/27 16:60.33.680"
}
    };

    return Castelog;
}, this);

//Included:lib/501.castelog.v1.metodos.una_peticion_http.part.js
Castelog.variables.cliente_http = Castelog.variables.axios.create();

Castelog.metodos.una_peticion_http = function (url, method_p, data, headers, client = Castelog.variables.cliente_http, en_errores = console.log) {
    const errorHandler = (typeof en_errores === "function") ? en_errores : error => console.log("Error en petición HTTP:", error);
    const requests_client = ((typeof client === "object") && (client instanceof Castelog.variables.axios)) ? client : Castelog.variables.cliente_http;
    try {
        const method = method_p ? method_p.toLowerCase() : "get";
        return requests_client[method](url, data, { headers }).catch(errorHandler);
    } catch (error) {
        return errorHandler(error);
    }
};

//Included:lib/502.castelog.v1.metodos.un_cacheo.part.js
Castelog.metodos.un_cacheo = function(clave, valor, condicion) {
    let condicionFinal = condicion;
    if(typeof condicion === "function") {
        condicionFinal = condicion();
    }
    NoSeRefresca:
    if(!condicionFinal) {
        const cacheDB = Castelog.variables.SimplestDB.getCache();
        const coincidencias = cacheDB.select("cache", item => item.key === clave);
        const coincidenciasIds = Object.keys(coincidencias);
        if (coincidenciasIds.length === 0) {
            break NoSeRefresca;
        } else if (coincidenciasIds.length > 1) {
            throw new Error("Clave de cacheo «" + clave + "» corrupta por concurrencia de " + coincidenciasIds.length + " registros (0001).");
        }
        return coincidencias[coincidenciasIds[0]].value;
    }
    let valorFinal = valor;
    if (typeof valor === "function") {
        valorFinal = valor();
    }
    const cacheDB = Castelog.variables.SimplestDB.getCache();
    const coincidencias = cacheDB.select("cache", item => item.key === clave);
    const coincidenciasIds = Object.keys(coincidencias);
    if(coincidenciasIds.length === 0) {
        const item = cacheDB.insert("cache", { key: clave, value: valorFinal });
        return item.value;
    } else if(coincidenciasIds.length > 1) {
        throw new Error("Clave de cacheo «" + clave + "» corrupta por concurrencia de " + coincidenciasIds.length + " registros (0002).");
    }
    const coincidencia = coincidencias[coincidenciasIds[0]];
    cacheDB.update("cache", coincidencia.id, { valor: valorFinal });
    return valorFinal;
};

//Included:lib/503.castelog.v1.metodos.un_modulo_importado.part.js
Castelog.metodos.un_modulo_importado = function(id, file_dir = undefined, process_dir = undefined) {
    try {
        console.log("0. iniciando importacion de: " + id);
        // Intento 1. De la cache propia:
        console.log("intento 1: de la cache propia");
        if(id in Castelog.modulos) {
            console.log("Funcionó el método 1.");
            return Castelog.modulos[id].value;
        }
        // Intento 2. Del require normal:
        console.log("intento 2: del require normal");
        if(typeof(Castelog.globalmente.require) === "function") {
            try {
                const modulix = Castelog.globalmente.require(id);
                console.log("Funcionó el método 2.");
                return modulix;
            } catch (error) {
                // noop.
            }
        }
        // Intento 3. Cambiando las rutas + de la cache propia:
        console.log("intento 3: cambiando rutas + de la cache propia");
        let id2 = id;
        if(id.startsWith("./") && file_dir) {
            id2 = id.replace(/^\.\//g, file_dir.replace(/\/$/g, "") + "/");
        } else if(id.startsWith("@/") && process_dir) {
            id2 = id.replace(/^\.\//g, process_dir.replace(/\/$/g, "") + "/");
        }
        if(id2 in Castelog.modulos) {
            const mod = Castelog.modulos[id2].value;
            console.log("Funcionó el método 3 con: " + id2);
            return mod;
        }
        // Intento 4. Cambiando las rutas + del require normal:
        console.log("intento 4: cambiando rutas + del require normal");
        if(typeof(Castelog.globalmente.require) === "function") {
            try {
                const mod = require(id2);
                console.log("Funcionó el método 4 con: " + id2);
                return mod;
            } catch (error) {
                // Ya no hay más intentos, se lanza error:
                throw error;
            }
        }
        throw new Error(`No se pudo importar módulo porque no existe «${id2}» importable con «require(...)» ni tampoco en «Castelog.modulos»`);
    } catch (error) {
        console.log("Error al importar módulo: " + id);
        throw error;
    }
};

//Included:lib/504.castelog.v1.metodos.un_modulo_exportado.part.js
Castelog.metodos.un_modulo_exportado = function(id, modulo, factory = undefined, file_dir = undefined, process_dir = undefined) {
    console.log("0. iniciando exportacion de: " + id);
    // Persistencia 1. En la cache propia:
    console.log("1. persistencia en cache propia: ");
    Castelog.modulos[id] = { value: modulo, factory };
    // Persistencia 2. En el module.exports normal:
    if(typeof(module) !== "undefined") {
        console.log("2. persistencia en module.exports normal: ");
        try {
            module.exports = modulo;
        } catch (error) {
            // noop.
        }
    }
    // Persistencia 3. Cambiando las rutas + cache propia:
    if(process_dir) {
        if(id.startsWith(process_dir)) {
            const path_relative_to_process = id.replace(process_dir, "@/").replace(/\/+/g, "/");
            Castelog.modulos[path_relative_to_process] = { value: modulo, factory };
        }
    }
    // Ya no hay más persistencias, se retorna el módulo con ruta original:
    return Castelog.modulos[id].value;
};

//Included:lib/504.castelog.v1.metodos.una_plantilla.js
Castelog.variables.plantillas_config_por_defecto = {};
Castelog.variables.plantillas_settings_por_defecto = { delimiter: ":", async: false };

Castelog.metodos.una_plantilla = function(fn, defaultConfig = {}, defaultSettings = {}) {
    if(typeof fn === "string") {
        return (config_p, settings_p) => {
            const config = Object.assign({}, Castelog.variables.plantillas_config_por_defecto, defaultConfig, config_p);
            const settings = Object.assign({}, Castelog.variables.plantillas_settings_por_defecto, defaultSettings, settings_p);
            const parameters = { config };
            return Castelog.variables.ejs.render(fn, parameters, settings);
        };
    } else if(typeof fn === "function") {
        return (config, settings) => {
            return fn(
                Object.assign({}, defaultConfig, config),
                Object.assign({}, defaultSettings, settings),
            );
        };
    } else throw new Error("Tipo de plantilla no identificado (válidos:'string' y 'function'");
};

//Included:lib/505.castelog.v1.metodos.una_lectura_de_fichero.js
Castelog.metodos.una_lectura_de_fichero = function(file, codificacion = "utf8", modelId_ = "fs", fsSystem = "simplestdb.fs") {
    if(fsSystem === "simplestdb.fs") {
        let modelId = modelId_;
        if(modelId_ === null) {
            modelId = "fs";
        } else if(typeof modelId_ === "undefined") {
            modelId = "fs";
        }
        const sdb_fs = Castelog.variables.SimplestDB.getFS();
        const previous_files = sdb_fs.select(modelId, item => item.path === file);
        const keys = Object.keys(previous_files);
        if(!keys.length) {
            return undefined;
        } else if(keys.length > 1) {
            throw new Error("Fichero corrupto por duplicidad de ruta al leer: " + file + " [00909]");
        }
        return previous_files[keys[0]].contents;
    } else if(fsSystem === "node.fs") {
        return require("fs").readFileSync(file, codificacion);
    } else {
        throw new Error("Modalidad de sistema de ficheros «" + fsSystem + "» no identificada. Solo disponibles: 'simplestdb.fs' y 'node.fs'. [0001]");
    }
};

//Included:lib/506.castelog.v1.metodos.una_escritura_de_fichero.js
Castelog.metodos.una_escritura_de_fichero = function (file, contents, codificacion, modelId_ = "fs", fsSystem = "simplestdb.fs") {
    if (fsSystem === "simplestdb.fs") {
        let modelId = modelId_;
        if(modelId_ === null) {
            modelId = "fs";
        } else if(typeof modelId_ === "undefined") {
            modelId = "fs";
        }
        const sdb_fs = Castelog.variables.SimplestDB.getFS();
        const previous_files = sdb_fs.select(modelId, item => item.path === file);
        const keys = Object.keys(previous_files);
        if(!keys.length) {
            return sdb_fs.insert(modelId, { path: file, contents: contents || "" });
        } else if(keys.length > 1) {
            throw new Error("Fichero corrupto por duplicidad de ruta al escribir: " + file + " [00808]");
        }
        sdb_fs.update(modelId, previous_files[keys[0]].id, { contents });
        return previous_files[keys[0]];
    } else if (fsSystem === "node.fs") {
        return require("fs").writeFileSync(file, contents, codificacion);
    } else {
        throw new Error("Modalidad de sistema de ficheros «" + fsSystem + "» no identificada. Solo disponibles: 'simplestdb.fs' y 'node.fs'. [0002]");
    }
};

//Included:lib/508.castelog.v1.metodos.una_seleccion_de_base_de_datos.js
Castelog.metodos.una_seleccion = function(modelo, filtrando, ordenando, agrupando, paginando, bd = "system") {
    const db = Castelog.variables.SimplestDB.create({ schema: bd }, true);
    const resultOriginal = db.select(modelo, filtrando ? filtrando : i => i);
    let result = Object.keys(resultOriginal).reduce((output, key) => {
        output.push([key, resultOriginal[key]]);
        return output;
    }, []);
    if(agrupando) {
        // result = result.sort(ordenando);
    }
    if(ordenando) {
        if(typeof ordenando === "function") {
            result = result.sort(ordenando);
        } else if(Array.isArray(ordenando)) {
            result = result.sort(function(a, b) {
                for(let index = 0; index < ordenando.length; index++) {
                    const ordenacion = ordenando[index];
                    const aHas = ordenacion in a;
                    const bHas = ordenacion in b;
                    if(aHas && bHas) {
                        if(a[ordenacion] < b[ordenacion]) {
                            return -1;
                        } else if(a[ordenacion] > b[ordenacion]) {
                            return 1;
                        }
                    } else if (aHas) {
                        return -1;
                    } else if(bHas) {
                        return 1;
                    }
                }
                return -1;
            });
        } else {
            throw new Error("Parámetro «ordenando» debe ser una función o un array. [0001]");
        }
    }
    if(paginando) {
        if(typeof paginando !== "object") {
            throw new Error("Parámetro «paginando» debe ser un objeto. [0001]");
        }
        const { pagina, items } = paginando;
        const itemsNumber = parseInt(items) || 20;
        const paginaNumber = parseInt(pagina) || 0;
        let indexPagina = 0;
        let indexItem = 0;
        let result2 = [];
        for(let indexRow = 0; indexRow < result.length; indexRow++) {
            const row = result[indexRow];
            indexItem++;
            if(indexItem >= itemsNumber) {
                indexPagina++;
                indexItem = 0;
            }
            if(indexPagina === paginaNumber) {
                result2.push(row);
            }
        }
        result = result2;
    }
    if(Array.isArray(result)) {
        result = result.reduce((output, item) => {
            const [ key, value ] = item;
            output[key] = value;
            return output;
        }, {});
    }
    return result;
};

//Included:lib/509.castelog.v1.metodos.una_actualizacion_de_base_de_datos.js
Castelog.metodos.una_actualizacion = function(modelo, id, datos, bd = "system") {
    const db = Castelog.variables.SimplestDB.create({ schema: bd }, true);
    return db.update(modelo, id, datos);
};

//Included:lib/509.castelog.v1.metodos.una_eliminacion_de_base_de_datos.js
Castelog.metodos.una_eliminacion = function(modelo, id, bd = "system") {
    const db = Castelog.variables.SimplestDB.create({ schema: bd }, true);
    return db.delete(modelo, id);
};

//Included:lib/509.castelog.v1.metodos.una_insercion_de_base_de_datos.js
Castelog.metodos.una_insercion = function(modelo, datos, bd = "system") {
    const db = Castelog.variables.SimplestDB.create({ schema: bd }, true);
    return db.insert(modelo, datos);
};

//Included:lib/510.castelog.v1.metodos.una_notificacion.js
Castelog.metodos.una_notificacion = function(mensaje) {
    if(typeof window === "object") {
        return window.alert(mensaje);
    } else if(typeof global === "object") {
        console.log(mensaje);
    }
};

//Included:lib/511.castelog.v1.metodos.una_pregunta.js
Castelog.metodos.una_pregunta = function(mensaje, defecto) {
    if(typeof window === "object") {
        return window.prompt(mensaje, defecto);
    } else if(typeof global === "object") {
        return new Promise(ok => {
            const reader = require("readline").createInterface({
                input: process.stdin,
                output: process.stdout,
            });
            reader.question(mensaje + "\n«Respuesta:» ", answer => {
                reader.close();
                if(!answer) {
                    return ok(defecto);
                }
                return ok(answer);
            });
        });
    }
};

//Included:lib/512.castelog.v1.metodos.una_confirmacion.js
Castelog.metodos.una_confirmacion = function(mensaje, defecto) {
    if(typeof window === "object") {
        return window.prompt(mensaje, defecto);
    } else if(typeof global === "object") {
        const readline = require("readline");
        const reader = readline.createInterface({
            input: process.stdin,
            output: process.stdout,
        });
        return new Promise(ok => {
            const ask = () => {
                reader.question(mensaje + ( defecto ? " (S/n = por defecto «sí»)" : " (s/N = por defecto «no»)" ), answer => {
                    reader.close();
                    if(!answer) {
                        return ok(defecto);
                    }
                    return ok(answer);
                });
            };
            ask();
        });
    }
};

//Included:lib/513.castelog.v1.metodos.un_componente_vue2.js
Castelog.metodos.un_componente_vue2 = function(id, plantilla, logica, estilos, parametros_de_estilos = {}) {
    if(typeof window === "object") {
        const vue_global = (typeof window.Vue !== "undefined") ? window.Vue :
            (typeof window.vue !== "undefined") ? window.vue : undefined;
        if(typeof vue_global === "undefined") {
            throw new Error("Castelog no pudo encontrar Vue en el entorno vía 'window.vue' o 'window.Vue'");
        }
        const componente_base_original = { template: plantilla };
        const definicion_logica_de_componente = logica ? logica(componente_base_original) : {};
        const componente_base = Object.assign({}, componente_base_original, definicion_logica_de_componente);
        const componente_clase_base = vue_global.component(id, componente_base);
        const uniqueId = "castelog-style-tag-" + id;
        const foundElement = document.getElementById(uniqueId);
        if(estilos && !foundElement) {
            const styleTag = document.createElement("style");
            styleTag.id = uniqueId;
            styleTag.textContent = Castelog.metodos.una_plantilla(estilos, {
                estilo_uid: uniqueId,
                componente: componente_base,
                componente_id: id,
                componente_clase: componente_clase_base,
                ...parametros_de_estilos,
            })();
            document.head.appendChild(styleTag);
        }
        return componente_clase_base;
    } else if(typeof global === "object") {
        return;
    }
};

//Included:lib/514.castelog.v1.metodos.estoy_en.js
Castelog.metodos.estoy_en = function(expresion) {
    // Esta función está por completarse/parchearse.
    // Actualmente solo determina correctamente si:
    //   - estoy en navegador: tiene en cuenta window.
    //   - estoy en sistema: tiene en cuenta global y require.
    //   - estoy en windows: funciona bien en node.js solamente (en sistema).
    //   - estoy en linux: funciona bien solo si consideras linux a todo lo que no sea windows.
    if(expresion === "estoy en navegador") {
        return (typeof window !== "undefined") && (typeof document !== "undefined");
    } else if(expresion === "estoy en sistema") {
        return (typeof global !== "undefined") && (typeof require !== "undefined");
    } else if(expresion === "estoy en windows") {
        return (typeof global !== "undefined") && (typeof require !== "undefined") && (require("os").platform().indexOf("win") === 0);
    } else if(expresion === "estoy en linux") {
        return (typeof global !== "undefined") && (typeof require !== "undefined") && (require("os").platform().indexOf("win") !== 0);
    } else if(expresion === "estoy en mac") {
        return undefined;
    } else if(expresion === "estoy en chrome") {
        return undefined;
    } else if(expresion === "estoy en firefox") {
        return undefined;
    } else if(expresion === "estoy en opera") {
        return undefined;
    } else if(expresion === "estoy en safari") {
        return undefined;
    } else if(expresion === "estoy en ios") {
        return undefined;
    } else if(expresion === "estoy en android") {
        return undefined;
    } else if(expresion === "estoy en móvil") {
        return undefined;
    } else if(expresion === "estoy en tablet") {
        return undefined;
    } else if(expresion === "estoy en ordenador") {
        return undefined;
    } else {
        throw new Error("Expresión de detección de entorno no identificada: "+ expresion);
    }
    return true;
};

//Included:lib/514.castelog.v1.metodos.un_comando_de_consola.js
Castelog.metodos.un_comando_de_consola = function(comando, opciones) {
    if(typeof window === "object") {
        return false;
    } else if(typeof global === "object") {
        return require("child_process").execSync(comando, opciones);
    }
};

//Included:lib/515.castelog.v1.metodos.un_elemento_html.js
Castelog.metodos.un_elemento_html = function(codigo) {
    if(typeof window === "object") {
        const parent = document.createElement("div");
        parent.innerHTML = codigo;
        return parent.children[0];
    } else if(typeof global === "object") {
        throw new Error("El entorno no soporta la carga de elementos HTML nativa. Suele funcionar en navegadores.");
    }
};

//Included:lib/516.castelog.v1.metodos.una_compilacion_estandar_de_parametros_de_consola.js
Castelog.metodos.una_compilacion_estandar_de_parametros_de_consola = function(parametros) {
    if(!Array.isArray(parametros)) {
        throw new Error("Se requiere que «parametros» sea un array");
    }
    const compilados = {};
    let propiedadSeleccionada = "_";
    for(let index = 0; index < parametros.length; index++) {
        const parametro = parametros[index];
        if (parametro.match(/^\-\-/g)) {
            propiedadSeleccionada = parametro.replace(/^\-\-/g, "");
        } else if(parametro.match(/^\-/g)) {
            propiedadSeleccionada = parametro.replace(/^\-/g, "");
        } else {
            if (!Array.isArray(compilados[propiedadSeleccionada])) {
                compilados[propiedadSeleccionada] = [];
            }
            compilados[propiedadSeleccionada].push(parametro);
        }
    }
    return compilados;
};

//Included:lib/517.castelog.v1.metodos.un_servidor_http.js
Castelog.metodos.un_servidor_http = function(controlador, opciones) {
    if(typeof window === "object") {
        return;
    } else if(typeof global === "object") {
        return require("http").createServer(controlador, opciones);
    }
};

//Included:lib/518.castelog.v1.metodos.un_servidor_https.js
Castelog.metodos.un_servidor_https = function(controlador, opciones_seguras, opciones) {
    if(typeof window === "object") {
        return;
    } else if(typeof global === "object") {
        return require("https").createServer(controlador, opciones_seguras, opciones);
    }
};

//Included:lib/519.castelog.v1.metodos.un_servidor_socket_io.js
Castelog.metodos.un_servidor_socket_io = function(controlador, opciones_seguras, opciones) {
    if(typeof window === "object") {
        return;
    } else if(typeof global === "object") {
        throw new Error("no implementado todavía!");
    }
};

//Included:lib/520.castelog.v1.metodos.un_cliente_socket_io.js
Castelog.metodos.un_cliente_socket_io = function(controlador, opciones_seguras, opciones) {
    if(typeof window === "object") {
        throw new Error("no implementado todavía!");
    } else if(typeof global === "object") {
        throw new Error("no implementado todavía!");
    }
};

//Included:lib/521.castelog.v1.metodos.una_exportacion_de_modulo_universal_estandar.js
Castelog.metodos.una_exportacion_de_modulo_universal_estandar = function(id, mod, is_factory = true, is_async = false) {
    if(id in Castelog.modulos) {
        throw new Error("No se puede sobreescribir el módulo estándar universal «" + id + "»")
    }
    let mod_result;
    if(is_factory && (typeof mod === "function")) {
        mod_result = mod();
    } else {
        mod_result = mod;
    }
    if(is_async && (mod_result instanceof Promise)) {
        mod_result.then(data => {
            return Castelog.modulos[id] = data;
        });
    } else {
        Castelog.modulos[id] = mod_result;
    }
    return mod_result;
};

//Included:lib/522.castelog.v1.metodos.una_aplicacion_vue2.js
Castelog.metodos.una_aplicacion_vue2 = function (id, plantilla, logica, estilos, rutas = [], traducciones = [], montada = null, parametros_de_estilos = {}) {
    if(typeof window === "object") {
        const vue_global = (typeof window.Vue !== "undefined") ? window.Vue :
            (typeof window.vue !== "undefined") ? window.vue : undefined;
        if(typeof vue_global === "undefined") {
            throw new Error("Castelog no pudo encontrar Vue en el entorno vía 'window.vue' o 'window.Vue'");
        }
        vue_global.use(VueI18next);
        const componente_base_original = { template: plantilla };
        const definicion_logica_de_componente = logica ? logica(componente_base_original) : {};
        const componente_base = Object.assign({}, componente_base_original, definicion_logica_de_componente);
        const uniqueId = "castelog-style-tag-" + id;
        const foundElement = document.getElementById(uniqueId);
        if(estilos && !foundElement) {
            const styleTag = document.createElement("style");
            styleTag.id = uniqueId;
            styleTag.textContent = Castelog.metodos.una_plantilla(estilos, {
                estilo_uid: uniqueId,
                componente: componente_base,
                componente_id: id,
                ...parametros_de_estilos,
            })();
            document.head.appendChild(styleTag);
        }
        const userPreferredLocale = window.navigator.language;
        const userPreferredIso = userPreferredLocale.split("-")[0];
        const localeIds = Object.keys(traducciones);
        const localePosition = localeIds.indexOf(userPreferredIso);
        const currentLocale = (localePosition === -1) ? localeIds[localePosition] : "en";
        i18next.init({
            lng: currentLocale,
            resources: traducciones ? Object.keys(traducciones).reduce(function(out, key) {
                if(!(key in out)) {
                    out[key] = {
                        translation: traducciones[key]
                    };
                }
                return out;
            }, {}) : {}
        });
        const instancia_base = new vue_global({
            ...componente_base,
            router: new VueRouter({
                routes: rutas
            }),
            i18n: new VueI18next(i18next),
        });
        if(typeof(montada) === "string") {
            window.addEventListener("load", function() {
                instancia_base.$mount(montada);
            });
        } else {
            console.log("montada:", montada);
            console.log("id:", id);
            console.log("plantilla:", plantilla);
            console.log("logica:", logica);
            console.log("estilos:", estilos);
            console.log("rutas:", rutas);
            console.log("traducciones:", traducciones);
        }
        return instancia_base;
    } else if(typeof global === "object") {
        return;
    }
};

//Included:lib/999.finalizacion.part.js
// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////// Aquí termina el script de Castelog //

const todos_los_animales_con_nombre = Castelog.metodos.una_seleccion("animal", function(animal) {return (!(typeof animal.nombre === 'undefined'));}, ["nombre", "apellido", "edad"], ["edad"], [1, 20], "animales");
Castelog.metodos.una_insercion("animal", {nombre:"Rata", apellido:"ratifolia", edad:30}, "animales");
Castelog.metodos.una_actualizacion("animal", 1, {es_primero:true}, "animales");
Castelog.metodos.una_eliminacion("animal", 2, null);