rem: var a = this.split(sep); 
add: var a = str.split(sep); 
context: qx.lang.String.add = function(v, sep){  if (this == v)  {    return this;  }  else if (this == qx.Const.CORE_EMPTY)  {    return v;  }  else  {    if (qx.util.Validation.isInvalid(sep)) {      sep = qx.Const.CORE_COMMA;    };    var a = this.split(sep);    if (a.indexOf(v) == -1)    {      a.push(v);      return a.join(sep);    }    else    {      return this;    };  };};
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/43bb8a2d1e2723941e77b812d2052457453de4a1/String.js/clean/qooxdoo/source/script/lang/String.js