/* LanguageTool, a natural language style checker 
 * Copyright (C) 2014 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.rules.de;

import org.languagetool.AnalyzedSentence;
import org.languagetool.AnalyzedTokenReadings;
import org.languagetool.rules.Category;
import org.languagetool.rules.ITSIssueType;
import org.languagetool.rules.RuleMatch;

import java.util.Arrays;
import java.util.List;
import java.util.ResourceBundle;
import java.util.regex.Pattern;

/**
 * Checks that there's whitespace between sentences etc.
 *
 * @author Daniel Naber
 * @since 2.8
 */
public class SentenceWhitespaceRule extends org.languagetool.rules.SentenceWhitespaceRule {

  private static final Pattern NUMBER_REGEX = Pattern.compile("\\d+");
  
  private boolean prevSentenceEndsWithNumber = false;

  public SentenceWhitespaceRule(ResourceBundle messages) {
    super(messages);
    super.setCategory(new Category(messages.getString("category_misc")));
    setLocQualityIssueType(ITSIssueType.Whitespace);
  }

  @Override
  public String getId() {
    return "DE_SENTENCE_WHITESPACE";
  }

  @Override
  public String getDescription() {
    return "Fehlendes Leerzeichen zwischen Sätzen oder nach Ordnungszahlen";
  }

  @Override
  public String getMessage() {
    if (prevSentenceEndsWithNumber) {
      return "Fügen Sie nach Ordnungszahlen (1., 2. usw.) ein Leerzeichen ein";
    } else {
      return "Fügen Sie zwischen Sätzen ein Leerzeichen ein";
    }
  }

  @Override
  public RuleMatch[] match(AnalyzedSentence sentence) {
    AnalyzedTokenReadings[] tokens = sentence.getTokens();
    List<RuleMatch> matches = Arrays.asList(super.match(sentence));
    if (tokens.length > 1) {
      String prevLastToken = tokens[tokens.length-2].getToken();
      prevSentenceEndsWithNumber = NUMBER_REGEX.matcher(prevLastToken).matches();
    }
    return toRuleMatchArray(matches);
  }

  @Override
  public void reset() {
    super.reset();
    prevSentenceEndsWithNumber = false;
  }

}

/* LanguageTool, a natural language style checker 
 * Copyright (C) 2014 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.rules.de;

import org.languagetool.AnalyzedSentence;
import org.languagetool.AnalyzedTokenReadings;
import org.languagetool.rules.Category;
import org.languagetool.rules.Example;
import org.languagetool.rules.ITSIssueType;
import org.languagetool.rules.RuleMatch;

import java.util.Arrays;
import java.util.List;
import java.util.ResourceBundle;
import java.util.regex.Pattern;

/**
 * Checks that there's whitespace between sentences etc.
 *
 * @author Daniel Naber
 * @since 2.8
 */
public class SentenceWhitespaceRule extends org.languagetool.rules.SentenceWhitespaceRule {

  private static final Pattern NUMBER_REGEX = Pattern.compile("\\d+");
  
  private boolean prevSentenceEndsWithNumber = false;

  public SentenceWhitespaceRule(ResourceBundle messages) {
    super(messages);
    super.setCategory(new Category(messages.getString("category_misc")));
    setLocQualityIssueType(ITSIssueType.Whitespace);
    addExamplePair(Example.wrong("Hier steht ein Satz.<marker>Das</marker> ist ein weiterer Satz."),
                   Example.fixed("Hier steht ein Satz.<marker> Das</marker> ist ein weiterer Satz."));
  }

  @Override
  public String getId() {
    return "DE_SENTENCE_WHITESPACE";
  }

  @Override
  public String getDescription() {
    return "Fehlendes Leerzeichen zwischen Sätzen oder nach Ordnungszahlen";
  }

  @Override
  public String getMessage() {
    if (prevSentenceEndsWithNumber) {
      return "Fügen Sie nach Ordnungszahlen (1., 2. usw.) ein Leerzeichen ein";
    } else {
      return "Fügen Sie zwischen Sätzen ein Leerzeichen ein";
    }
  }

  @Override
  public RuleMatch[] match(AnalyzedSentence sentence) {
    AnalyzedTokenReadings[] tokens = sentence.getTokens();
    List<RuleMatch> matches = Arrays.asList(super.match(sentence));
    if (tokens.length > 1) {
      String prevLastToken = tokens[tokens.length-2].getToken();
      prevSentenceEndsWithNumber = NUMBER_REGEX.matcher(prevLastToken).matches();
    }
    return toRuleMatchArray(matches);
  }

  @Override
  public void reset() {
    super.reset();
    prevSentenceEndsWithNumber = false;
  }

}

add examples