amatch/shim/browser/amatch.js

Namespace string matcher

/**
 * Simple matcher
 * @function amatch
 * @param {string} patterns
 * @returns {function}
 */
'use strict';

/** @lends amatch */

var _assign = require('babel-runtime/core-js/object/assign');

var _assign2 = _interopRequireDefault(_assign);

var _getIterator2 = require('babel-runtime/core-js/get-iterator');

var _getIterator3 = _interopRequireDefault(_getIterator2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function amatch() {
  var patterns = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';

  var _amatch$parse = amatch.parse(patterns),
      rejects = _amatch$parse.rejects,
      accepts = _amatch$parse.accepts;

  return function matches(value) {
    var _iteratorNormalCompletion = true;
    var _didIteratorError = false;
    var _iteratorError = undefined;

    try {
      for (var _iterator = (0, _getIterator3.default)(rejects), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
        var reject = _step.value;

        if (reject.test(value)) {
          return false;
        }
      }
    } catch (err) {
      _didIteratorError = true;
      _iteratorError = err;
    } finally {
      try {
        if (!_iteratorNormalCompletion && _iterator.return) {
          _iterator.return();
        }
      } finally {
        if (_didIteratorError) {
          throw _iteratorError;
        }
      }
    }

    var _iteratorNormalCompletion2 = true;
    var _didIteratorError2 = false;
    var _iteratorError2 = undefined;

    try {
      for (var _iterator2 = (0, _getIterator3.default)(accepts), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
        var accept = _step2.value;

        if (accept.test(value)) {
          return true;
        }
      }
    } catch (err) {
      _didIteratorError2 = true;
      _iteratorError2 = err;
    } finally {
      try {
        if (!_iteratorNormalCompletion2 && _iterator2.return) {
          _iterator2.return();
        }
      } finally {
        if (_didIteratorError2) {
          throw _iteratorError2;
        }
      }
    }

    return false;
  };
}

(0, _assign2.default)(amatch, {
  parse: function parse(patterns) {
    var rejects = [];
    var accepts = [];
    var _iteratorNormalCompletion3 = true;
    var _didIteratorError3 = false;
    var _iteratorError3 = undefined;

    try {
      for (var _iterator3 = (0, _getIterator3.default)(patterns.split(/[\s,]+/)), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
        var pattern = _step3.value;

        if (!pattern) {
          continue;
        }
        var converted = pattern.replace(/[\\^$+?.()|[\]{}]/g, '\\$&').replace(/\*/g, '.*?');
        if (converted[0] === '-') {
          rejects.push(new RegExp('^' + converted.substr(1) + '$'));
        } else {
          accepts.push(new RegExp('^' + converted + '$'));
        }
      }
    } catch (err) {
      _didIteratorError3 = true;
      _iteratorError3 = err;
    } finally {
      try {
        if (!_iteratorNormalCompletion3 && _iterator3.return) {
          _iterator3.return();
        }
      } finally {
        if (_didIteratorError3) {
          throw _iteratorError3;
        }
      }
    }

    return { rejects: rejects, accepts: accepts };
  }
});

module.exports = amatch;
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