code: /* LanguageTool, a natural language style checker
   * Copyright (C) 2016 Marcin Miłkowski (http://www.languagetool.org)
   *
   * 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.rules.ru;
  
  import com.hankcs.algorithm.AhoCorasickDoubleArrayTrie;
  import org.languagetool.rules.AbstractDashRule;
  import java.util.Collections;
  import java.util.ResourceBundle;
  
  /**
   * Check for compounds written with dashes instead of hyphens.
   * @since 4.2
   */
  public class RussianDashRule extends AbstractDashRule {
  
    private static volatile AhoCorasickDoubleArrayTrie<String> trie;
  
    public RussianDashRule(ResourceBundle messages) {
      super(messages);
    //  setDefaultTempOff(); // Slows down start up. See GitHub issue #1016.
      setTags(Collections.emptyList());
    }
  
    @Override
    public String getId() {
      return "RU_DASH_RULE";
    }
  
    @Override
    public String getDescription() {
      return "Тире вместо дефиса («из — за» вместо «из-за»).";
    }
  
    @Override
    public String getMessage() {
      return "Использовано тире вместо дефиса.";
    }
  
    @Override
    protected boolean isBoundary(String s) {
      return !s.matches("[\u0400-\u04FF]");
    }
  
    @Override
    protected AhoCorasickDoubleArrayTrie<String> getCompoundsData() {
      AhoCorasickDoubleArrayTrie<String> data = trie;
      if (data == null) {
        synchronized (RussianDashRule.class) {
          data = trie;
          if (data == null) {
            trie = data = loadCompoundFile("/ru/compounds.txt");
          }
        }
      }
  
      return data;
    }
  
  }
  