text: YUI.add('dataschema-json', function(Y) {
  
  /**
   * The DataSchema utility provides a common configurable interface for widgets to
   * apply a given schema to a variety of data.
   *
   * @module dataschema
   */
  var LANG = Y.Lang,
  
  /**
   * JSON subclass for the YUI DataSchema utility.
   * @class DataSchema.JSON
   * @extends DataSchema.Base
   * @static
   */
  SchemaJSON = {
  
      /////////////////////////////////////////////////////////////////////////////
      //
      // DataSchema.JSON static methods
      //
      /////////////////////////////////////////////////////////////////////////////
      /**
       * Utility function converts JSON locator strings into walkable paths
       *
       * @method DataSchema.JSON.getPath
       * @param locator {String} JSON value locator.
       * @return {String[]} Walkable path to data value.
       * @static
       */
      getPath: function(locator) {
          var path = null,
              keys = [],
              i = 0;
              
          if (locator) {
              // Strip the ["string keys"] and [1] array indexes
              locator = locator.
                  replace(/\[(['"])(.*?)\1\]/g,
                  function (x,$1,$2) {keys[i]=$2;return '.@'+(i++);}).
                  replace(/\[(\d+)\]/g,
                  function (x,$1) {keys[i]=parseInt($1,10)|0;return '.@'+(i++);}).
                  replace(/^\./,''); // remove leading dot
  
              // Validate against problematic characters.
              if (!/[^\w\.\$@]/.test(locator)) {
                  path = locator.split('.');
                  for (i=path.length-1; i >= 0; --i) {
                      if (path[i].charAt(0) === '@') {
                          path[i] = keys[parseInt(path[i].substr(1),10)];
                      }
                  }
              }
              else {
              }
          }
          return path;
      },
  
      /**
       * Utility function to walk a path and return the value located there.
       *
       * @method DataSchema.JSON.getLocationValue
       * @param path {String[]} Locator path.
       * @param data {String} Data to traverse.
       * @return {Object} Data value at location.
       * @static
       */
      getLocationValue: function (path, data) {
          var i = 0,
              len = path.length;
          for (;i<len;i++) {
              if(!LANG.isUndefined(data[path[i]])) {
                  data = data[path[i]];
              }
              else {
                  data = undefined;
                  break;
              }
          }
          return data;
      },
  
      /**
       * Applies a given schema to given JSON data.
       *
       * @method apply
       * @param schema {Object} Schema to apply.
       * @param data {Object} JSON data.
       * @return {Object} Schema-parsed data.
       * @static
       */
      apply: function(schema, data) {
          var data_in = data,
              data_out = {results:[],meta:{}};
              
          // Convert incoming JSON strings
          if(!LANG.isObject(data)) {
              try {
                  data_in = Y.JSON.parse(data);
              }
              catch(e) {
                  data_out.error = e;
                  return data_out;
              }
          }
  
          if(LANG.isObject(data_in) && schema) {
              // Parse results data
              if(!LANG.isUndefined(schema.resultListLocator)) {
                  data_out = SchemaJSON._parseResults(schema, data_in, data_out);
              }
  
              // Parse meta data
              if(!LANG.isUndefined(schema.metaFields)) {
                  data_out = SchemaJSON._parseMeta(schema.metaFields, data_in, data_out);
              }
          }
          else {
              data_out.error = new Error("JSON schema parse failure");
          }
  
          return data_out;
      },
  
      /**
       * Schema-parsed list of results from full data
       *
       * @method _parseResults
       * @param schema {Object} Schema to parse against.
       * @param json_in {Object} JSON to parse.
       * @param data_out {Object} In-progress parsed data to update.
       * @return {Object} Parsed data object.
       * @static
       * @protected
       */
      _parseResults: function(schema, json_in, data_out) {
          var results = [],
              path,
              error;
  
          if(schema.resultListLocator) {
              path = SchemaJSON.getPath(schema.resultListLocator);
              if(path) {
                  results = SchemaJSON.getLocationValue(path, json_in);
                  if (results === undefined) {
                      data_out.results = [];
                      error = new Error("JSON results retrieval failure");
                  }
                  else {
                      if(LANG.isArray(schema.resultFields) && LANG.isArray(results)) {
                          data_out = SchemaJSON._getFieldValues(schema.resultFields, results, data_out);
                      }
                      else {
                          data_out.results = [];
                          error = new Error("JSON Schema fields retrieval failure");
                      }
                  }
              }
              else {
                  error = new Error("JSON Schema results locator failure");
              }
  
              if (error) {
                  data_out.error = error;
              }
              
          }
          return data_out;
      },
  
      /**
       * Get field data values out of list of full results
       *
       * @method _getFieldValues
       * @param fields {Array} Fields to find.
       * @param array_in {Array} Results to parse.
       * @param data_out {Object} In-progress parsed data to update.
       * @return {Object} Parsed data object.
       * @static
       * @protected
       */
      _getFieldValues: function(fields, array_in, data_out) {
          var results = [],
              len = fields.length,
              i, j,
              field, key, path, parser,
              simplePaths = [], complexPaths = [], fieldParsers = [],
              result, record;
  
          // First collect hashes of simple paths, complex paths, and parsers
          for (i=0; i<len; i++) {
              field = fields[i]; // A field can be a simple string or a hash
              key = field.key || field; // Find the key
  
              // Validate and store locators for later
              path = SchemaJSON.getPath(key);
              if (path) {
                  if (path.length === 1) {
                      simplePaths[simplePaths.length] = {key:key, path:path[0]};
                  } else {
                      complexPaths[complexPaths.length] = {key:key, path:path};
                  }
              } else {
              }
  
              // Validate and store parsers for later
              //TODO: use Y.DataSchema.parse?
              parser = (LANG.isFunction(field.parser)) ? field.parser : Y.Parsers[field.parser+''];
              if (parser) {
                  fieldParsers[fieldParsers.length] = {key:key, parser:parser};
              }
          }
  
          // Traverse list of array_in, creating records of simple fields,
          // complex fields, and applying parsers as necessary
          for (i=array_in.length-1; i>=0; --i) {
              record = {};
              result = array_in[i];
              if(result) {
                  // Cycle through simpleLocators
                  for (j=simplePaths.length-1; j>=0; --j) {
                      // Bug 1777850: The result might be an array instead of object
                      record[simplePaths[j].key] = Y.DataSchema.Base.parse(
                              (LANG.isUndefined(result[simplePaths[j].path]) ?
                              result[j] : result[simplePaths[j].path]), simplePaths[j]);
                  }
  
                  // Cycle through complexLocators
                  for (j=complexPaths.length - 1; j>=0; --j) {
                      record[complexPaths[j].key] = Y.DataSchema.Base.parse(
                          (SchemaJSON.getLocationValue(complexPaths[j].path, result)), complexPaths[j] );
                  }
  
                  // Cycle through fieldParsers
                  for (j=fieldParsers.length-1; j>=0; --j) {
                      key = fieldParsers[j].key;
                      record[key] = fieldParsers[j].parser(record[key]);
                      // Safety net
                      if (LANG.isUndefined(record[key])) {
                          record[key] = null;
                      }
                  }
              }
              results[i] = record;
          }
          data_out.results = results;
          return data_out;
      },
  
      /**
       * Parses results data according to schema
       *
       * @method _parseMeta
       * @param metaFields {Object} Metafields definitions.
       * @param json_in {Object} JSON to parse.
       * @param data_out {Object} In-progress parsed data to update.
       * @return {Object} Schema-parsed meta data.
       * @static
       * @protected
       */
      _parseMeta: function(metaFields, json_in, data_out) {
          if(LANG.isObject(metaFields)) {
              var key, path;
              for(key in metaFields) {
                  if (metaFields.hasOwnProperty(key)) {
                      path = SchemaJSON.getPath(metaFields[key]);
                      if (path && json_in) {
                          data_out.meta[key] = SchemaJSON.getLocationValue(path, json_in);
                      }
                  }
              }
          }
          else {
              data_out.error = new Error("JSON meta data retrieval failure");
          }
          return data_out;
      }
  };
  
  Y.DataSchema.JSON = Y.mix(SchemaJSON, Y.DataSchema.Base);
  
  
  
  }, '@VERSION@' ,{requires:['dataschema-base']});
  