preprocessor.js

// Generated by CoffeeScript 1.4.0
(function() {
  var PreProcessor;

  PreProcessor = (function() {
    /*
      from: https://github.com/sockjs/sockjs-node/commit/e0e7113f0f8bd8e5fea25e1eb2a8b1fe1413da2c
      from: https://github.com/sockjs/sockjs-client/blob/a571c94e051de7af489b4fc541194956e1d171fe/lib/utils.js
    */

    function PreProcessor() {
      this.escapable = /[\x00-\x1f\ud800-\udfff\ufffe\uffff\u0300-\u0333\u033d-\u0346\u034a-\u034c\u0350-\u0352\u0357-\u0358\u035c-\u0362\u0374\u037e\u0387\u0591-\u05af\u05c4\u0610-\u0617\u0653-\u0654\u0657-\u065b\u065d-\u065e\u06df-\u06e2\u06eb-\u06ec\u0730\u0732-\u0733\u0735-\u0736\u073a\u073d\u073f-\u0741\u0743\u0745\u0747\u07eb-\u07f1\u0951\u0958-\u095f\u09dc-\u09dd\u09df\u0a33\u0a36\u0a59-\u0a5b\u0a5e\u0b5c-\u0b5d\u0e38-\u0e39\u0f43\u0f4d\u0f52\u0f57\u0f5c\u0f69\u0f72-\u0f76\u0f78\u0f80-\u0f83\u0f93\u0f9d\u0fa2\u0fa7\u0fac\u0fb9\u1939-\u193a\u1a17\u1b6b\u1cda-\u1cdb\u1dc0-\u1dcf\u1dfc\u1dfe\u1f71\u1f73\u1f75\u1f77\u1f79\u1f7b\u1f7d\u1fbb\u1fbe\u1fc9\u1fcb\u1fd3\u1fdb\u1fe3\u1feb\u1fee-\u1fef\u1ff9\u1ffb\u1ffd\u2000-\u2001\u20d0-\u20d1\u20d4-\u20d7\u20e7-\u20e9\u2126\u212a-\u212b\u2329-\u232a\u2adc\u302b-\u302c\uaab2-\uaab3\uf900-\ufa0d\ufa10\ufa12\ufa15-\ufa1e\ufa20\ufa22\ufa25-\ufa26\ufa2a-\ufa2d\ufa30-\ufa6d\ufa70-\ufad9\ufb1d\ufb1f\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40-\ufb41\ufb43-\ufb44\ufb46-\ufb4e]/g;
      this.lookup = this.unroll_lookup();
    }

    PreProcessor.prototype.unroll_lookup = function() {
      var c, i, unrolled;
      unrolled = {};
      c = (function() {
        var _i, _results;
        _results = [];
        for (i = _i = 0; _i < 65536; i = ++_i) {
          _results.push(String.fromCharCode(i));
        }
        return _results;
      })();
      this.escapable.lastIndex = 0;
      c.join('').replace(this.escapable, function(a) {
        unrolled[a] = '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
        return '';
      });
      return unrolled;
    };

    PreProcessor.prototype.prepare = function(data) {
      var expanded, obj, quoted;
      quoted = JSON.stringify(data);
      obj = this;
      expanded = quoted.replace(this.escapable, function(a) {
        return obj.lookup[a];
      });
      return expanded;
    };

    return PreProcessor;

  })();

  module.exports = PreProcessor;

}).call(this);