001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    
021    package org.sonar.squid.recognizer;
022    
023    import java.util.regex.Matcher;
024    import java.util.regex.Pattern;
025    
026    public class RegexDetector extends Detector {
027    
028      private Pattern regex;
029    
030      public RegexDetector(String regex, double probability) {
031        super(probability);
032        this.regex = Pattern.compile(regex);
033      }
034    
035      @Override
036      public int scan(String line) {
037        Matcher matcher = regex.matcher(line);
038        int matchers = 0;
039        while (matcher.find()) {
040          matchers++;
041        }
042        return matchers;
043      }
044    }