SOURCE CODE: Uize.Parse.Xml.TagAttributes (view docs)

/*______________
|       ______  |   U I Z E    J A V A S C R I P T    F R A M E W O R K
|     /      /  |   ---------------------------------------------------
|    /    O /   |    MODULE : Uize.Parse.Xml.TagAttributes Class
|   /    / /    |
|  /    / /  /| |    ONLINE : http://www.uize.com
| /____/ /__/_| | COPYRIGHT : (c)2014-2016 UIZE
|          /___ |   LICENSE : Available under MIT License or GNU General Public License
|_______________|             http://www.uize.com/license.html
*/

/* Module Meta Data
  type: Class
  importance: 4
  codeCompleteness: 100
  docCompleteness: 2
*/

/*?
  Introduction
    The =Uize.Parse.Xml.TagAttributes= module provides methods for parsing and serializing tag attributes lists of XML tags.

    *DEVELOPERS:* `Chris van Rensburg`
*/

Uize.module ({
  name:'Uize.Parse.Xml.TagAttributes',
  superclass:'Uize.Parse.Base',
  required:[
    'Uize.Str.Whitespace',
    'Uize.Parse.Xml.TagAttribute'
  ],
  builder:function (_superclass) {
    'use strict';

    var
      /*** Variables for Performance Optimization ***/
        _Uize_Util_Xml_TagAttribute = Uize.Parse.Xml.TagAttribute,
        _indexOfNonWhitespace = Uize.Str.Whitespace.indexOfNonWhitespace
    ;

    return _superclass.subclass ({
      constructor:function () {
        var m = this;
        m._attributes = m.attributes = [];
        _superclass.apply (m,arguments);
      },

      instanceMethods:{
        parse:function (_source,_index) {
          function _eatWhitespace () {
            _index = (_indexOfNonWhitespace (_source,_index) + 1 || _sourceLength + 1) - 1;
          }
          var
            m = this,
            _attributes = m._attributes,
            _attribute,
            _sourceLength = (m.source = _source).length
          ;
          m.isValid = true;
          m.index = _index || (_index = 0);
          _attributes.length = 0;
          while (_index < _sourceLength) {
            _eatWhitespace ();
            if (_index < _sourceLength) {
              if ((_attribute = new _Uize_Util_Xml_TagAttribute (_source,_index)).isValid) {
                _attributes.push (_attribute);
                _index += _attribute.length;
              } else {
                break;
              }
            }
          }
          m.length = _index - m.index;
        },

        serialize:function () {
          return this.isValid ? Uize.map (this._attributes,'value.serialize ()').join (' ') : '';
        }
      }
    });
  }
});