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 /**
 * The DataSchema utility provides a common configurable interface for widgets to
 * apply a given schema to a variety of data.
 *
 * @module dataschema
 * @main dataschema
 */
 
 /**
 * Provides the base DataSchema implementation, which can be extended to
 * create DataSchemas for specific data formats, such XML, JSON, text and
 * arrays.
 *
 * @module dataschema
 * @submodule dataschema-base
 */
 
 var LANG = Y.Lang,
 /**
 * Base class for the YUI DataSchema Utility.
 * @class DataSchema.Base
 * @static
 */
 SchemaBase = {
 /**
 * Overridable method returns data as-is.
 *
 * @method apply
 * @param schema {Object} Schema to apply.
 * @param data {Object} Data.
 * @return {Object} Schema-parsed data.
 * @static
 */
 apply: function(schema, data) {
 return data;
 },
 
 /**
 * Applies field parser, if defined
 *
 * @method parse
 * @param value {Object} Original value.
 * @param field {Object} Field.
 * @return {Object} Type-converted value.
 */
 parse: function(value, field) {
 if(field.parser) {
 var parser = (LANG.isFunction(field.parser)) ?
 field.parser : Y.Parsers[field.parser+''];
 if(parser) {
 value = parser.call(this, value);
 }
 else {
 Y.log("Could not find parser for field " + Y.dump(field), "warn", "dataschema-json");
 }
 }
 return value;
 }
 };
 
 Y.namespace("DataSchema").Base = SchemaBase;
 Y.namespace("Parsers");