// Copyright 2007 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview DOM pattern to match a text node.
*/
goog.provide('goog.dom.pattern.Text');
goog.require('goog.dom.NodeType');
goog.require('goog.dom.pattern');
goog.require('goog.dom.pattern.AbstractPattern');
goog.require('goog.dom.pattern.MatchType');
/**
* Pattern object that matches text by exact matching or regular expressions.
*
* @param {string|RegExp} match String or regular expression to match against.
* @constructor
* @extends {goog.dom.pattern.AbstractPattern}
* @final
*/
goog.dom.pattern.Text = function(match) {
/**
* The text or regular expression to match.
*
* @private {string|RegExp}
*/
this.match_ = match;
};
goog.inherits(goog.dom.pattern.Text, goog.dom.pattern.AbstractPattern);
/**
* Test whether the given token is a text token which matches the string or
* regular expression provided in the constructor.
*
* @param {Node} token Token to match against.
* @param {goog.dom.TagWalkType} type The type of token.
* @return {goog.dom.pattern.MatchType} <code>MATCH</code> if the pattern
* matches, <code>NO_MATCH</code> otherwise.
* @override
*/
goog.dom.pattern.Text.prototype.matchToken = function(token, type) {
if (token.nodeType == goog.dom.NodeType.TEXT &&
goog.dom.pattern.matchStringOrRegex(this.match_, token.nodeValue)) {
this.matchedNode = token;
return goog.dom.pattern.MatchType.MATCH;
}
return goog.dom.pattern.MatchType.NO_MATCH;
};