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 /** 023 * Detect Java constant 024 */ 025 public class JavaConstantTokenizer extends Tokenizer { 026 027 public JavaConstantTokenizer(String tagBefore, String tagAfter) { 028 super(tagBefore, tagAfter); 029 } 030 031 @Override 032 public boolean hasNextToken(CodeReader code) { 033 int lastChar = code.lastChar(); 034 if (isJavaConstantStart(code.peek()) && !Character.isJavaIdentifierPart(lastChar) && !Character.isJavaIdentifierStart(lastChar)) { 035 String constant = code.peekTo(endTokenMatcher); 036 int nextCharAfterConstant = code.peek(constant.length() + 1)[constant.length()]; 037 if (nextCharAfterConstant != 0 && Character.isJavaIdentifierPart(nextCharAfterConstant)) { 038 return false; 039 } 040 return true; 041 } 042 return false; 043 } 044 045 @Override 046 public String nextToken(CodeReader code) { 047 return code.popTo(endTokenMatcher); 048 } 049 050 private boolean isJavaConstantStart(int character) { 051 return Character.isUpperCase(character); 052 } 053 054 private boolean isJavaConstantPart(int character) { 055 return Character.isUpperCase(character) || character == '_' || character == '-' || Character.isDigit(character); 056 } 057 058 private EndTokenMatcher endTokenMatcher = new EndTokenMatcher() { 059 060 public boolean match(int endFlag) { 061 return !isJavaConstantPart(endFlag); 062 } 063 }; 064 065 }