code: /* LanguageTool, a natural language style checker 
   * Copyright (C) 2022 Daniel Naber (http://www.danielnaber.de)
   * 
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
   * USA
   */
  package org.languagetool.dev.dumpcheck;
  
  import org.languagetool.Language;
  import org.languagetool.rules.RuleMatch;
  
  import java.util.List;
  
  /**
   * Print rule matches to STDOUT in CSV format (tab-separated).
   */
  class CSVHandler extends ResultHandler {
  
    CSVHandler(int maxSentences, int maxErrors) {
      super(maxSentences, maxErrors);
    }
  
    @Override
    protected void handleResult(Sentence sentence, List<RuleMatch> ruleMatches, Language language) {
      String sentenceStr = sentence.getText();
      if (ruleMatches.size() > 0) {
        for (RuleMatch match : ruleMatches) {
          sentenceStr = noTabs(sentenceStr.substring(0, match.getFromPos())) +
                        "__" +
                        noTabs(sentenceStr.substring(match.getFromPos(), match.getToPos())) +
                        "__" +
                        noTabs(sentenceStr.substring(match.getToPos()));
          System.out.println("MATCH\t" + match.getRule().getFullId() + "\t" + noTabs(sentenceStr));
          checkMaxErrors(++errorCount);
        }
      } else {
        System.out.println("NOMATCH\t\t" + noTabs(sentenceStr));
      }
      checkMaxSentences(++sentenceCount);
    }
  
    private String noTabs(String s) {
      return s.replace("\t", "\\t");
    }
  
    @Override
    public void close() throws Exception {
    }
  }
  