001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2009 SonarSource SA 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 package org.sonar.colorizer; 021 022 import java.util.Collections; 023 import java.util.HashSet; 024 import java.util.Set; 025 026 /** 027 * Detect case-sensitive keywords 028 */ 029 public class KeywordsTokenizer extends Tokenizer { 030 031 private Set<String> keywords = new HashSet<String>(); 032 033 public KeywordsTokenizer(String tagBefore, String tagAfter, Set<String> keywords) { 034 super(tagBefore, tagAfter); 035 this.keywords = keywords; 036 } 037 038 public KeywordsTokenizer(String tagBefore, String tagAfter, String... keywords) { 039 super(tagBefore, tagAfter); 040 Collections.addAll(this.keywords, keywords); 041 } 042 043 @Override 044 public boolean hasNextToken(CodeReader code) { 045 int lastChar = code.lastChar(); 046 int firstChar = code.peek(); 047 if (Character.isLetter(firstChar) && !Character.isJavaIdentifierPart(lastChar)) { 048 String word = code.peekTo(endTokenMatcher); 049 for (String keyword : keywords) { 050 if (checkKeyword(word, keyword)) { 051 return true; 052 } 053 } 054 } 055 return false; 056 } 057 058 protected boolean checkKeyword(String word, String keyword) { 059 return word.equals(keyword); 060 } 061 062 @Override 063 public String nextToken(CodeReader code) { 064 return code.popTo(endTokenMatcher); 065 } 066 067 private EndTokenMatcher endTokenMatcher = new EndTokenMatcher() { 068 069 public boolean match(int endFlag) { 070 return !Character.isJavaIdentifierPart(endFlag); 071 } 072 }; 073 074 }