code: function(str) {
              var line;
              var lines = OpenLayers.String.trim(str).split(this.regExes.parenComma);
              var components = [];
              for(var i=0, len=lines.length; i<len; ++i) {
                  line = lines[i].replace(this.regExes.trimParens, '$1');
                  components.push(this.parse.linestring.apply(this, [line]).geometry);
              }
              return new OpenLayers.Feature.Vector(
                  new OpenLayers.Geometry.MultiLineString(components)
              );
          }
docs: Return a multilinestring feature given a multilinestring WKT fragment.
  @param {String} str A WKT fragment representing the multilinestring
  @returns {OpenLayers.Feature.Vector} A multilinestring feature
  @private