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  import org.as2lib.regexp.node.Not;
    19  import org.as2lib.regexp.node.TreeInfo;
    20  
    21  class org.as2lib.regexp.node.Specials extends Node {
    22  	
    23      public function Specials() {
    24      }
    25      
    26      public function dup(flag:Boolean):Node {
    27          return (flag) ? new Not(this) : new Specials();
    28      }
    29      
    30      public function match(matcher:Object, i:Number, seq:String):Boolean {
    31          if (i < matcher.to) {
    32              var ch:Number = seq.charCodeAt(i);;
    33              return (((ch-0xFFF0) | (0xFFFD-ch)) >= 0 || ch == 0xFEFF)
    34                  && next.match(matcher, i+1, seq);
    35          }
    36          return false;
    37      }
    38      
    39      public function study(info:TreeInfo):Boolean {
    40          info.minLength++;
    41          info.maxLength++;
    42          return next.study(info);
    43      }
    44  }
    45  
    46