File: xml/js/xml-format.js

            /**
             * The Number Utility provides type-conversion and string-formatting
             * convenience methods for Numbers.
             *
             * @module datatype-xml
             * @submodule datatype-xml-format
             */
            
            /**
             * XML provides a set of utility functions to operate against XML documents.
             *
             * @class XML
             * @static
             */
            var LANG = Y.Lang;
            
            Y.mix(Y.namespace("XML"), {
                /**
                 * Converts data to type XMLDocument.
                 *
                 * @method format
                 * @param data {XMLDocument} Data to convert.
                 * @return {String} String.
                 */
                format: function(data) {
                    try {
                        if(!LANG.isUndefined(data.getXml)) {
                            return data.getXml();
                        }
            
                        if(!LANG.isUndefined(XMLSerializer)) {
                            return (new XMLSerializer()).serializeToString(data);
                        }
                    }
                    catch(e) {
                        if(data && data.xml) {
                            return data.xml;
                        }
                        else {
                            Y.log("Could not format data from type XML", "warn", "xml");
                            return (LANG.isValue(data) && data.toString) ? data.toString() : "";
                        }
                    }
                }
            });
            
            Y.namespace("DataType");
            Y.DataType.XML = Y.XML;