001 /*
002 GRANITE DATA SERVICES
003 Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004
005 This file is part of Granite Data Services.
006
007 Granite Data Services is free software; you can redistribute it and/or modify
008 it under the terms of the GNU Library General Public License as published by
009 the Free Software Foundation; either version 2 of the License, or (at your
010 option) any later version.
011
012 Granite Data Services is distributed in the hope that it will be useful, but
013 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015 for more details.
016
017 You should have received a copy of the GNU Library General Public License
018 along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020
021 package org.granite.generator.gsp;
022
023 import java.util.List;
024
025 import org.granite.generator.gsp.token.Comment;
026 import org.granite.generator.gsp.token.Expression;
027 import org.granite.generator.gsp.token.Scriplet;
028 import org.granite.generator.gsp.token.TemplateText;
029 import org.granite.generator.gsp.token.Token;
030
031 /**
032 * @author Franck WOLFF
033 */
034 public class GroovyRenderer implements Renderer {
035
036 private String source = null;
037
038 @Override
039 public String renderSource(List<Token> tokens) {
040 return renderSource(tokens, null);
041 }
042
043 @Override
044 public String renderSource(List<Token> tokens, String out) {
045 StringBuilder sb = new StringBuilder(1024);
046
047 for (Token token : tokens) {
048 if (token instanceof TemplateText) {
049 String content = token.getContent();
050
051 if (content.length() > 0) {
052 int iLast = content.length() - 1;
053 sb.append("print(\"");
054
055 for (int i = 0; i < content.length(); i++) {
056 char c = content.charAt(i);
057
058 switch (c) {
059 case '\\':
060 sb.append("\\\\");
061 break;
062 case '"' :
063 sb.append("\\\"");
064 break;
065 case '\n':
066 sb.append("\\n\");\n");
067 if (i < iLast)
068 sb.append("print(\"");
069 break;
070 case '\f':
071 sb.append("\\f");
072 break;
073 default :
074 sb.append(c);
075 break;
076 }
077 }
078
079 if (content.charAt(iLast) != '\n')
080 sb.append("\");\n");
081 }
082 }
083 else if (token instanceof Expression)
084 sb.append("print(").append(token.getContent()).append(");\n");
085 else if (token instanceof Scriplet)
086 sb.append(token.getContent()).append('\n');
087 else if (!(token instanceof Comment))
088 throw new UnsupportedOperationException("Unsupported token (not implemented): " + token);
089 }
090
091 source = sb.toString();
092
093 return source;
094 }
095
096 @Override
097 public String getSource() {
098 return source;
099 }
100 }