text: // 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 the start of a tag.
   */
  
  goog.provide('goog.dom.pattern.StartTag');
  
  goog.require('goog.dom.TagWalkType');
  goog.require('goog.dom.pattern.Tag');
  
  
  
  /**
   * Pattern object that matches an opening tag.
   *
   * @param {string|RegExp} tag Name of the tag.  Also will accept a regular
   *     expression to match against the tag name.
   * @param {Object=} opt_attrs Optional map of attribute names to desired values.
   *     This pattern will only match when all attributes are present and match
   *     the string or regular expression value provided here.
   * @param {Object=} opt_styles Optional map of CSS style names to desired
   *     values. This pattern will only match when all styles are present and
   *     match the string or regular expression value provided here.
   * @param {Function=} opt_test Optional function that takes the element as a
   *     parameter and returns true if this pattern should match it.
   * @constructor
   * @extends {goog.dom.pattern.Tag}
   */
  goog.dom.pattern.StartTag = function(tag, opt_attrs, opt_styles, opt_test) {
    goog.dom.pattern.Tag.call(
        this, tag, goog.dom.TagWalkType.START_TAG, opt_attrs, opt_styles,
        opt_test);
  };
  goog.inherits(goog.dom.pattern.StartTag, goog.dom.pattern.Tag);
  