jscc-parser
Version:
A LALR(1) Parser Generator for JavaScript written in JavaScript.
555 lines (503 loc) • 20.5 kB
JavaScript
/**
* @license text 2.0.15 Copyright jQuery Foundation and other contributors.
* Released under MIT license, http://github.com/requirejs/text/LICENSE
*/
/*jslint regexp: true */
/*global require, XMLHttpRequest, ActiveXObject,
define, window, process, Packages,
java, location, Components, FileUtils */
/**
* @typedef {function(string, string)}
*/
var WriteFunction;
var writeFunctionProperties =
/**
* @lends {WriteFunction}
*/
{
/**
* @param {string} moduleName
* @param {string} fileName
* @param {string} text
*/
asModule: function(moduleName, fileName, text) {
}
};
/**
* @typedef {function((string|Array<string>), function(string)=)}
*/
var ReqFunction;
var reqFunctionProperties =
/**
* @lends {ReqFunction}
*/
{
/**
* @param {string} moduleResource
* @returns {string}
*/
toUrl: function(moduleResource) {
return "";
},
/**
* @param {string} moduleName
* @returns {boolean}
*/
defined: function(moduleName) {
return false;
},
/**
* @param {string} moduleName
* @returns {boolean}
*/
specified: function(moduleName) {
return false;
}
};
/**
* @typedef {function(string=)}
*/
var OnLoadFunction;
var onLoadFunctionProperties =
/**
* @lends {OnLoadFunction}
*/
{
/**
* @param {Error=} e
*/
error: function(e) {
}
};
define(['module'], function (/** @type {{children: Array, config: function(): Config, exports: Object, filename: string, id: string, loaded: boolean, parent: Object}} */ module) {
'use strict';
var text, fs, Cc, Ci, xpcIsWindows,
progIds = ['Msxml2.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.4.0'],
xmlRegExp = /^\s*<\?xml(\s)+version=[\'\"](\d)*.(\d)*[\'\"](\s)*\?>/im,
bodyRegExp = /<body[^>]*>\s*([\s\S]+)\s*<\/body>/im,
hasLocation = typeof location !== 'undefined' && location.href,
defaultProtocol = /** @type {(string|undefined)} */ (hasLocation && location.protocol && location.protocol.replace(/\:/, '')),
defaultHostName = /** @type {(string|undefined)} */ (hasLocation && location.hostname),
defaultPort = hasLocation && (location.port || undefined),
buildMap = {},
masterConfig = /** @type {Config} */ ((module.config && module.config()) || {});
/**
* @param {(T|undefined)} value
* @param {T} defaultValue
* @returns {T}
* @template T
*/
function useDefault(value, defaultValue) {
return value === undefined || value === '' ? defaultValue : value;
}
//Allow for default ports for http and https.
/**
* @param {string} protocol1
* @param {string} port1
* @param {string=} protocol2
* @param {string=} port2
* @returns {boolean}
*/
function isSamePort(protocol1, port1, protocol2, port2) {
if (port1 === port2) {
return true;
} else if (protocol1 === protocol2) {
if (protocol1 === 'http') {
return useDefault(port1, '80') === useDefault(port2, '80');
} else if (protocol1 === 'https') {
return useDefault(port1, '443') === useDefault(port2, '443');
}
}
return false;
}
text = {
/**
* @type {string}
* @const
*/
version: '2.0.15',
/**
* @param {string} content
* @returns {string}
*/
strip: function (content) {
//Strips <?xml ...?> declarations so that external SVG and XML
//documents can be added to a document without worry. Also, if the string
//is an HTML document, only the part inside the body tag is returned.
if (content) {
content = content.replace(xmlRegExp, "");
var matches = content.match(bodyRegExp);
if (matches) {
content = matches[1];
}
} else {
content = "";
}
return content;
},
/**
*
* @param {string} content
* @returns {string}
*/
jsEscape: function (content) {
return content.replace(/(['\\])/g, '\\$1')
.replace(/[\f]/g, "\\f")
.replace(/[\b]/g, "\\b")
.replace(/[\n]/g, "\\n")
.replace(/[\t]/g, "\\t")
.replace(/[\r]/g, "\\r")
.replace(/[\u2028]/g, "\\u2028")
.replace(/[\u2029]/g, "\\u2029");
},
/**
* @type {function():(XMLHttpRequest|ActiveXObject)}
*/
createXhr: masterConfig.createXhr || function () {
//Would love to dump the ActiveX crap in here. Need IE 6 to die first.
var xhr, i, progId;
if (typeof XMLHttpRequest !== "undefined") {
return new XMLHttpRequest();
} else if (typeof ActiveXObject !== "undefined") {
for (i = 0; i < 3; i += 1) {
progId = progIds[i];
try {
xhr = new ActiveXObject(progId);
} catch (e) {}
if (xhr) {
progIds = [progId]; // so faster next time
break;
}
}
}
return xhr;
},
/**
* Parses a resource name into its component parts. Resource names
* look like: module/name.ext!strip, where the !strip part is
* optional.
* @param {string} name the resource name
* @returns {{moduleName: string, ext: (string|undefined), strip: boolean}} with properties "moduleName", "ext" and "strip"
* where strip is a boolean.
*/
parseName: function (name) {
var modName, ext, temp,
strip = false,
index = name.lastIndexOf("."),
isRelative = name.indexOf('./') === 0 ||
name.indexOf('../') === 0;
if (index !== -1 && (!isRelative || index > 1)) {
modName = name.substring(0, index);
ext = name.substring(index + 1);
} else {
modName = name;
}
temp = ext || modName;
index = temp.indexOf("!");
if (index !== -1) {
//Pull off the strip arg.
strip = temp.substring(index + 1) === "strip";
temp = temp.substring(0, index);
if (ext) {
ext = temp;
} else {
modName = temp;
}
}
return {
moduleName: modName,
ext: ext,
strip: strip
};
},
/**
* @type {!RegExp}
* @const
*/
xdRegExp: /^((\w+)\:)?\/\/([^\/\\]+)/,
/**
* Is an URL on another domain. Only works for browser use, returns
* false in non-browser environments. Only used to know if an
* optimized .js version of a text resource should be loaded
* instead.
* @param {string} url
* @param {string=} protocol
* @param {string=} hostname
* @param {string=} port
* @returns {boolean}
*/
useXhr: function (url, protocol, hostname, port) {
var uProtocol, uHostName, uPort,
match = text.xdRegExp.exec(url);
if (!match) {
return true;
}
uProtocol = match[2];
uHostName = match[3];
uHostName = uHostName.split(':');
uPort = uHostName[1];
uHostName = uHostName[0];
return (!uProtocol || uProtocol === protocol) &&
(!uHostName || uHostName.toLowerCase() === hostname.toLowerCase()) &&
((!uPort && !uHostName) || isSamePort(uProtocol, uPort, protocol, port));
},
/**
* @param {string} name
* @param {boolean} strip
* @param {string} content
* @param {OnLoadFunction} onLoad
*/
finishLoad: function (name, strip, content, onLoad) {
content = strip ? text.strip(content) : content;
if (masterConfig.isBuild) {
buildMap[name] = content;
}
onLoad(content);
},
/**
* @param {string} name
* @param {ReqFunction} req
* @param {OnLoadFunction} onLoad
* @param {Config=} config
*/
load: function (name, req, onLoad, config) {
//Name has format: some.module.filext!strip
//The strip part is optional.
//if strip is present, then that means only get the string contents
//inside a body tag in an HTML string. For XML/SVG content it means
//removing the <?xml ...?> declarations so the content can be inserted
//into the current doc without problems.
// Do not bother with the work if a build and text will
// not be inlined.
if (config && config.isBuild && !config.inlineText) {
onLoad();
return;
}
masterConfig.isBuild = /** @type {boolean} */ (config && config.isBuild);
var parsed = text.parseName(name),
nonStripName = parsed.moduleName +
(parsed.ext ? '.' + parsed.ext : ''),
url = req.toUrl(nonStripName),
useXhr = /** @type {function(string, string=, string=, string=):boolean} */ ((masterConfig.useXhr) ||
text.useXhr);
// Do not load if it is an empty: url
if (url.indexOf('empty:') === 0) {
onLoad();
return;
}
//Load the text. Use XHR if possible and in a browser.
if (!hasLocation || useXhr(url, defaultProtocol, defaultHostName, defaultPort)) {
text.get(url, function (content) {
text.finishLoad(name, parsed.strip, content, onLoad);
}, function (err) {
if (onLoad.error) {
onLoad.error(err);
}
});
} else {
//Need to fetch the resource across domains. Assume
//the resource has been optimized into a JS module. Fetch
//by the module name + extension, but do not include the
//!strip part to avoid file system issues.
req([nonStripName], function (content) {
text.finishLoad(parsed.moduleName + '.' + parsed.ext,
parsed.strip, /** @type {string} */ (content), onLoad);
});
}
},
/**
* @param {string} pluginName
* @param {string} moduleName
* @param {WriteFunction} write
*/
write: function (pluginName, moduleName, write) {
if (buildMap.hasOwnProperty(moduleName)) {
var content = text.jsEscape(buildMap[moduleName]);
write.asModule(pluginName + "!" + moduleName,
"define(function () { return '" +
content +
"';});\n");
}
},
/**
* @param {string} pluginName
* @param {string} moduleName
* @param {ReqFunction} req
* @param {function(string, string)} write
* @param {Config=} config
*/
writeFile: function (pluginName, moduleName, req, write, config) {
var parsed = text.parseName(moduleName),
extPart = parsed.ext ? '.' + parsed.ext : '',
nonStripName = parsed.moduleName + extPart,
//Use a '.js' file name so that it indicates it is a
//script that can be loaded across domains.
fileName = req.toUrl(parsed.moduleName + extPart) + '.js';
//Leverage own load() method to load plugin value, but only
//write out values that do not have the strip argument,
//to avoid any potential issues with ! in file names.
text.load(nonStripName, req, function (value) {
//Use own write() method to construct full module value.
//But need to create shell that translates writeFile's
//write() to the right interface.
var textWrite = function (contents) {
return write(fileName, contents);
};
textWrite.asModule = function (moduleName, contents) {
return write.asModule(moduleName, fileName, contents);
};
text.write(pluginName, nonStripName, textWrite);
}, config);
}
};
if (masterConfig.env === 'node' || (!masterConfig.env &&
typeof process !== "undefined" &&
process.versions &&
!!process.versions.node &&
!process.versions['node-webkit'] &&
!process.versions['atom-shell'])) {
//Using special require.nodeRequire, something added by r.js.
fs = /** @type {fs} */ (require.nodeRequire('fs'));
/**
* @param {string} url
* @param {function(string)} callback
* @param {function((string|Error))=} errback
* @param {Object<string, string>=} headers
*/
text.get = function (url, callback, errback, headers) {
try {
var file = /** @type{string} */ (fs.readFileSync(url, 'utf8'));
//Remove BOM (Byte Mark Order) from utf8 files if it is there.
if (file[0] === '\uFEFF') {
file = file.substring(1);
}
callback(file);
} catch (e) {
if (errback) {
errback(e);
}
}
};
} else if (masterConfig.env === 'xhr' || (!masterConfig.env &&
text.createXhr())) {
/**
* @param {string} url
* @param {function(string)} callback
* @param {function((string|Error))=} errback
* @param {Object<string, string>=} headers
* @suppress {duplicate}
*/
text.get = function (url, callback, errback, headers) {
var xhr = text.createXhr(), header;
xhr.open('GET', url, true);
//Allow plugins direct access to xhr headers
if (headers) {
for (header in headers) {
if (headers.hasOwnProperty(header)) {
xhr.setRequestHeader(header.toLowerCase(), headers[header]);
}
}
}
//Allow overrides specified in config
if (masterConfig.onXhr) {
masterConfig.onXhr(xhr, url);
}
xhr.onreadystatechange = function (evt) {
var status, err;
//Do not explicitly handle errors, those should be
//visible via console output in the browser.
if (xhr.readyState === 4) {
status = xhr.status || 0;
if (status > 399 && status < 600) {
//An http 4xx or 5xx error. Signal an error.
err = new Error(url + ' HTTP status: ' + status);
err.xhr = xhr;
if (errback) {
errback(err);
}
} else {
callback(xhr.responseText);
}
if (masterConfig.onXhrComplete) {
masterConfig.onXhrComplete(xhr, url);
}
}
};
xhr.send(null);
};
} else if (masterConfig.env === 'rhino' || (!masterConfig.env &&
typeof Packages !== 'undefined' && typeof java !== 'undefined')) {
//Why Java, why is this so awkward?
text.get = function (url, callback) {
var stringBuffer,
/** @type {java.lang.String} */
line,
encoding = "utf-8",
file = new java.io.File(url),
lineSeparator = java.lang.System.getProperty("line.separator"),
input = new java.io.BufferedReader(new java.io.InputStreamReader(new java.io.FileInputStream(file), encoding)),
content = '';
try {
stringBuffer = new java.lang.StringBuffer();
// amdclean
line = /** @type {java.lang.String} */ (input.readLine());
// Byte Order Mark (BOM) - The Unicode Standard, version 3.0, page 324
// http://www.unicode.org/faq/utf_bom.html
// Note that when we use utf-8, the BOM should appear as "EF BB BF", but it doesn't due to this bug in the JDK:
// http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4508058
if (line && line.length() && line.charAt(0) === 0xfeff) {
// Eat the BOM, since we've already found the encoding on this file,
// and we plan to concatenating this buffer with others; the BOM should
// only appear at the top of a file.
line = line.substring(1);
}
if (line !== null) {
stringBuffer.append(line);
}
while ((line = input.readLine()) !== null) {
stringBuffer.append(lineSeparator);
stringBuffer.append(line);
}
//Make sure we return a JavaScript string and not a Java string.
content = String(stringBuffer.toString()); //String
} finally {
input.close();
}
callback(content);
};
} else if (masterConfig.env === 'xpconnect' || (!masterConfig.env &&
typeof Components !== 'undefined' && Components.classes &&
Components.interfaces)) {
//Avert your gaze!
Cc = Components.classes;
Ci = Components.interfaces;
Components.utils['import']('resource://gre/modules/FileUtils.jsm');
xpcIsWindows = ('@mozilla.org/windows-registry-key;1' in Cc);
text.get = function (url, callback) {
var inStream, convertStream, fileObj,
/** @type {{value: ?string}} */
readData = { value: null };
if (xpcIsWindows) {
url = url.replace(/\//g, '\\');
}
fileObj = new FileUtils.File(url);
//XPCOM, you so crazy
try {
inStream = Cc['@mozilla.org/network/file-input-stream;1']
.createInstance(Ci.nsIFileInputStream);
inStream.init(fileObj, 1, 0, false);
convertStream = Cc['@mozilla.org/intl/converter-input-stream;1']
.createInstance(Ci.nsIConverterInputStream);
convertStream.init(inStream, "utf-8", inStream.available(),
Ci.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER);
convertStream.readString(inStream.available(), readData);
convertStream.close();
inStream.close();
callback(readData.value);
} catch (e) {
throw new Error((fileObj && fileObj.path || '') + ': ' + e);
}
};
}
return text;
});