    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17
    18  package org.apache.log4j.util;
    19
    20  import org.apache.oro.text.perl.Perl5Util;
    21
    22  public class XMLLineAttributeFilter implements Filter {
    23
    24    Perl5Util util = new Perl5Util();
    25
    26    public
    27    String filter(String in) {
    28      if(util.match("/line=\"\\d{1,3}\"/", in)) {
    29        return util.substitute("s/line=\"\\d{1,3}\"/line=\"X\"/", in);
    30      } else if(util.match("/line=\"?\"/", in)) {
    31        return util.substitute("s/line=\"?\"/line=\"X\"/", in);
    32      } else {
    33        return in;
    34      }
    35    }
    36  }