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                            /**
                             * Provides Y.JSON.stringify method for converting objects to JSON strings.
                             *
                             * @module json
                             * @submodule json-stringify
                             * @for JSON
                             * @static
                             */
                            var COLON     = ':',
                                _JSON     = Y.config.global.JSON;
                            
                            Y.mix(Y.namespace('JSON'), {
                                /**
                                 * Serializes a Date instance as a UTC date string.  Used internally by
                                 * stringify.  Override this method if you need Dates serialized in a
                                 * different format.
                                 *
                                 * @method dateToString
                                 * @param d {Date} The Date to serialize
                                 * @return {String} stringified Date in UTC format YYYY-MM-DDTHH:mm:SSZ
                                 * @deprecated Use a replacer function
                                 * @static
                                 */
                                dateToString: function (d) {
                                    function _zeroPad(v) {
                                        return v < 10 ? '0' + v : v;
                                    }
                            
                                    return d.getUTCFullYear()           + '-' +
                                          _zeroPad(d.getUTCMonth() + 1) + '-' +
                                          _zeroPad(d.getUTCDate())      + 'T' +
                                          _zeroPad(d.getUTCHours())     + COLON +
                                          _zeroPad(d.getUTCMinutes())   + COLON +
                                          _zeroPad(d.getUTCSeconds())   + 'Z';
                                },
                            
                                /**
                                 * <p>Converts an arbitrary value to a JSON string representation.</p>
                                 *
                                 * <p>Objects with cyclical references will trigger an exception.</p>
                                 *
                                 * <p>If a whitelist is provided, only matching object keys will be
                                 * included.  Alternately, a replacer function may be passed as the
                                 * second parameter.  This function is executed on every value in the
                                 * input, and its return value will be used in place of the original value.
                                 * This is useful to serialize specialized objects or class instances.</p>
                                 *
                                 * <p>If a positive integer or non-empty string is passed as the third
                                 * parameter, the output will be formatted with carriage returns and
                                 * indentation for readability.  If a String is passed (such as "\t") it
                                 * will be used once for each indentation level.  If a number is passed,
                                 * that number of spaces will be used.</p>
                                 *
                                 * @method stringify
                                 * @param o {MIXED} any arbitrary value to convert to JSON string
                                 * @param w {Array|Function} (optional) whitelist of acceptable object
                                 *                  keys to include, or a replacer function to modify the
                                 *                  raw value before serialization
                                 * @param ind {Number|String} (optional) indentation character or depth of
                                 *                  spaces to format the output.
                                 * @return {string} JSON string representation of the input
                                 * @static
                                 */
                                stringify: function () {
                                    return _JSON.stringify.apply(_JSON, arguments);
                                },
                            
                                /**
                                 * <p>Number of occurrences of a special character within a single call to
                                 * stringify that should trigger promotion of that character to a dedicated
                                 * preprocess step for future calls.  This is only used in environments
                                 * that don't support native JSON, or when useNativeJSONStringify is set to
                                 * false.</p>
                                 *
                                 * <p>So, if set to 50 and an object is passed to stringify that includes
                                 * strings containing the special character \x07 more than 50 times,
                                 * subsequent calls to stringify will process object strings through a
                                 * faster serialization path for \x07 before using the generic, slower,
                                 * replacement process for all special characters.</p>
                                 *
                                 * <p>To prime the preprocessor cache, set this value to 1, then call
                                 * <code>Y.JSON.stringify("<em>(all special characters to
                                 * cache)</em>");</code>, then return this setting to a more conservative
                                 * value.</p>
                                 *
                                 * <p>Special characters \ " \b \t \n \f \r are already cached.</p>
                                 *
                                 * @property charCacheThreshold
                                 * @static
                                 * @default 100
                                 * @type {Number}
                                 */
                                charCacheThreshold: 100
                            });