/*

Copyright (c) 2009, Yahoo! Inc. All rights reserved.

Code licensed under the BSD License:

http://developer.yahoo.net/yui/license.txt

version: 3.0.0b1

build: 1163

*/

YUI.add('dataschema-base', function(Y) {

/**

 * The DataSchema utility provides a common configurable interface for widgets to

 * apply a given schema to a variety of data.

 *

 * @module 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 {

            }

        }

        return value;

    }

};

Y.namespace("DataSchema").Base = SchemaBase;

Y.namespace("Parsers");

}, '3.0.0b1' ,{requires:['base']});