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 public String renderSource(List<Token> tokens) {
039 return renderSource(tokens, null);
040 }
041
042 public String renderSource(List<Token> tokens, String out) {
043 StringBuilder sb = new StringBuilder(1024);
044
045 for (Token token : tokens) {
046 if (token instanceof TemplateText) {
047 String content = token.getContent();
048
049 if (content.length() > 0) {
050 int iLast = content.length() - 1;
051 sb.append("print(\"");
052
053 for (int i = 0; i < content.length(); i++) {
054 char c = content.charAt(i);
055
056 switch (c) {
057 case '\\':
058 sb.append("\\\\");
059 break;
060 case '"' :
061 sb.append("\\\"");
062 break;
063 case '\n':
064 sb.append("\\n\");\n");
065 if (i < iLast)
066 sb.append("print(\"");
067 break;
068 case '\f':
069 sb.append("\\f");
070 break;
071 default :
072 sb.append(c);
073 break;
074 }
075 }
076
077 if (content.charAt(iLast) != '\n')
078 sb.append("\");\n");
079 }
080 }
081 else if (token instanceof Expression)
082 sb.append("print(").append(token.getContent()).append(");\n");
083 else if (token instanceof Scriplet)
084 sb.append(token.getContent()).append('\n');
085 else if (!(token instanceof Comment))
086 throw new UnsupportedOperationException("Unsupported token (not implemented): " + token);
087 }
088
089 source = sb.toString();
090
091 return source;
092 }
093
094 public String getSource() {
095 return source;
096 }
097 }