001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2012 SonarSource 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 */ 020 021 package org.sonar.squid.text; 022 023 public class LiteralValueHandler extends LineContextHandler { 024 025 private final char delimiter; 026 027 public LiteralValueHandler(char delimiter) { 028 this.delimiter = delimiter; 029 } 030 031 @Override 032 boolean matchToEnd(Line line, StringBuilder pendingLine) { 033 return matchEndOfString(pendingLine, delimiter) && evenNumberOfBackSlashBeforeDelimiter(pendingLine); 034 } 035 036 private boolean evenNumberOfBackSlashBeforeDelimiter(StringBuilder pendingLine) { 037 int numberOfBackSlashChar = 0; 038 for (int index = pendingLine.length() - 2; index >= 0; index--) { 039 if (pendingLine.charAt(index) == '\\') { 040 numberOfBackSlashChar++; 041 } else { 042 break; 043 } 044 } 045 return numberOfBackSlashChar % 2 == 0; 046 } 047 048 @Override 049 boolean matchToBegin(Line line, StringBuilder pendingLine) { 050 if (matchEndOfString(pendingLine, delimiter)) { 051 return true; 052 } 053 return false; 054 } 055 056 @Override 057 boolean matchWithEndOfLine(Line line, StringBuilder pendingLine) { 058 return true; //see http://jira.codehaus.org/browse/SONAR-1555 059 } 060 }