libphonenumber-js/es6/findNumbers/RegExpCache.js

A simpler (and smaller) rewrite of Google Android's libphonenumber library in javascript

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }

import LRUCache from './LRUCache.js'; // A cache for frequently used country-specific regular expressions. Set to 32 to cover ~2-3
// countries being used for the same doc with ~10 patterns for each country. Some pages will have
// a lot more countries in use, but typically fewer numbers for each so expanding the cache for
// that use-case won't have a lot of benefit.

var RegExpCache = /*#__PURE__*/function () {
  function RegExpCache(size) {
    _classCallCheck(this, RegExpCache);

    this.cache = new LRUCache(size);
  }

  _createClass(RegExpCache, [{
    key: "getPatternForRegExp",
    value: function getPatternForRegExp(pattern) {
      var regExp = this.cache.get(pattern);

      if (!regExp) {
        regExp = new RegExp('^' + pattern);
        this.cache.put(pattern, regExp);
      }

      return regExp;
    }
  }]);

  return RegExpCache;
}();

export { RegExpCache as default };
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