1  /*
     2   * Copyright the original author or authors.
     3   * 
     4   * Licensed under the MOZILLA PUBLIC LICENSE, Version 1.1 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   * 
     8   *      http://www.mozilla.org/MPL/MPL-1.1.html
     9   * 
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16   
    17  import org.as2lib.regexp.node.Node;
    18  
    19  /**
    20   * {@code Neg} is a zero-width negative lookahead.
    21   * 
    22   * @author Igor Sadovskiy
    23   */
    24   
    25  class org.as2lib.regexp.node.Neg extends Node {
    26  	
    27      private var cond:Node;
    28      
    29      public function Neg(cond:Node) {
    30          this.cond = cond;
    31      }
    32      
    33      public function match(matcher:Object, i:Number, seq:String):Boolean {
    34          return (!cond.match(matcher, i, seq) && next.match(matcher, i, seq));
    35      }
    36  }
    37  
    38
as2api