includes/clientside/static/json.js
author Dan
Thu, 31 Jan 2008 22:28:12 -0500
changeset 281 881b77f880fb
parent 40 723bb7acf914
permissions -rw-r--r--
Fixed jBox menus failing to appear when window scrolled down
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/*
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    json.js
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    2007-03-20
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    All of the code contained within this file is released into
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    the public domain. Optionally, you may distribute this code
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    under the terms of the GNU General Public License as well
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    (public domain licensing allows this).
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*/
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function toJSONString(input)
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{
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  var m = {
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          '\b': '\\b',
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          '\t': '\\t',
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          '\n': '\\n',
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          '\f': '\\f',
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          '\r': '\\r',
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          '"' : '\\"',
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          '\\': '\\\\'
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          };
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  var t = typeof(input);
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  switch(t)
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  {
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    case 'string':
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      if (/["\\\x00-\x1f]/.test(input))
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      {
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          return '"' + input.replace(/([\x00-\x1f\\"])/g, function(a, b)
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            {
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              var c = m[b];
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              if (c) {
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                  return c;
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              }
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              c = b.charCodeAt();
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              return '\\u00' +
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                  Math.floor(c / 16).toString(16) +
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                  (c % 16).toString(16);
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          }) + '"';
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      }
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      return '"' + input + '"';
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      break;
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    case 'array':
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      var a = ['['],  
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            b,          
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            i,          
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            l = input.length,
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            v;          
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        var p = function (s) {
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            if (b) {
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                a.push(',');
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            }
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            a.push(s);
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            b = true;
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        }
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        for (i = 0; i < l; i += 1) {
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            v = input[i];
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            switch (typeof v) {
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            case 'object':
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              if (v) {
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                p(toJSONString(v));
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              } else {
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                p("null");
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              }
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              break;
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            case 'array':
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            case 'string':
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            case 'number':
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            case 'boolean':
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                p(toJSONString(v));
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            }
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        }
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        a.push(']');
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        return a.join('');
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      break;
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    case 'date':
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      var f = function (n)
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      {
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        return n < 10 ? '0' + n : n;
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      }
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      return '"' + input.getFullYear() + '-' +
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                 f(input.getMonth() + 1) + '-' +
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                 f(input.getDate()) + 'T' +
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                 f(input.getHours()) + ':' +
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                 f(input.getMinutes()) + ':' +
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                 f(input.getSeconds()) + '"';
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    case 'boolean':
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      return String(input);
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      break;
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    case 'number':
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      return isFinite(input) ? String(input) : "null";
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      break;
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    case 'object':
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      var a = ['{'],  
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          b,          
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          k,          
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          v;          
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      var p = function (s)
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      {
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        if (b)
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        {
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          a.push(',');
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        }
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        a.push(toJSONString(k), ':', s);
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        b = true;
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      }
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      for (k in input) 
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      {
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        if (input.hasOwnProperty(k))
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        {
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          v = input[k];
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          switch (typeof v) {
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            case 'object':
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              if (v) {
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                p(toJSONString(v));
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              } else {
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                p("null");
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              }
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              break;
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            case 'string':
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            case 'number':
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            case 'boolean':
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              p(toJSONString(v));
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              break;
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          }
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        }
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      }
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      a.push('}');
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      return a.join('');
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      break;
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  }
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}
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function parseJSON(string, filter)
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{
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  try {
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    if (/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t])+?$/.
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            test(string))
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    {
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        var j = eval('(' + string + ')');
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        if (typeof filter === 'function') {
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            function walk(k, v) {
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                if (v && typeof v === 'object') {
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                    for (var i in v) {
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                        if (v.hasOwnProperty(i)) {
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                            v[i] = walk(i, v[i]);
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                        }
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                    }
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                }
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                return filter(k, v);
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            }
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            j = walk('', j);
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        }
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        return j;
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    }
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  } catch (e) {
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  }
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  throw new SyntaxError("parseJSON");
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}