1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.wiki.translators;
24  
25  import java.util.LinkedHashMap;
26  import java.util.Map;
27  import java.util.regex.Matcher;
28  import java.util.regex.Pattern;
29  
30  /**
31   * <a href="ClassicToCreoleTranslator.java.html"><b><i>View Source</i></b></a>
32   *
33   * @author Jorge Ferrer
34   *
35   */
36  public class ClassicToCreoleTranslator {
37  
38      public ClassicToCreoleTranslator() {
39          initRegexps();
40      }
41  
42      public String translate(String content) {
43          content = normalize(content);
44  
45          for (String regexp: _regexps.keySet()) {
46              String replacement = _regexps.get(regexp);
47  
48              content = runRegexp(content, regexp, replacement);
49          }
50  
51          return content;
52      }
53  
54      protected void initRegexps() {
55  
56          // Bold
57  
58          _regexps.put("'''((?s:.)*?)('''|(\n\n|\r\r|\r\n\r\n))", "**$1**$3");
59  
60          // Italics
61  
62          _regexps.put("''((?s:.)*?)(''|(\n\n|\r\r|\r\n\r\n))", "//$1//$3");
63  
64          // Bold and italics
65  
66          _regexps.put(
67              "'''''((?s:.)*?)('''''|(\n\n|\r\r|\r\n\r\n))", "**//$1//**$3");
68  
69          // Link
70  
71          _regexps.put("\\[([^ ]*)\\]", "[[$1]]");
72  
73          // Link with label
74  
75          _regexps.put("\\[([^ ]+) (.*)\\]", "[[$1|$2]]");
76  
77          // Monospace
78  
79          _regexps.put("(^ (.+))(\\n (.+))*", "{{{\n$0\n}}}");
80  
81          // List item
82  
83          _regexps.put("^\\t[\\*] (.*)", "* $1");
84  
85          // List subitem
86  
87          _regexps.put("^\\t\\t[\\*] (.*)", "** $1");
88  
89          // List subsubitem
90  
91          _regexps.put("^\\t\\t\\t[\\*] (.*)", "*** $1");
92  
93          // List subsubsubitem
94  
95          _regexps.put("^\\t\\t\\t\\t[\\*] (.*)", "**** $1");
96  
97          // Ordered list item
98  
99          _regexps.put("^\\t1 (.*)", "# $1");
100 
101         // Ordered list subitem
102 
103         _regexps.put("^\\t\\t1 (.*)", "## $1");
104 
105         // Ordered list subsubitem
106 
107         _regexps.put("^\\t\\t\\t1 (.*)", "### $1");
108 
109         // Ordered list subsubsubitem
110 
111         _regexps.put("^\\t\\t\\t\\t1 (.*)", "#### $1");
112 
113         // Term and definition
114 
115         _regexps.put("^\\t([\\w]+):\\t(.*)", "**$1**:\n$2");
116 
117         // Indented paragraph
118 
119         _regexps.put("^\\t:\\t(.*)", "$1");
120 
121         // CamelCase
122 
123         _regexps.put(
124             "(^|\\p{Punct}|\\p{Space})((\\p{Lu}\\p{Ll}+){2,})" +
125                 "(\\z|\\n|\\p{Punct}|\\p{Space})", " [[$2]] ");
126     }
127 
128     protected String normalize(String content) {
129         content = content.replace("\r\n", "\n");
130         content = content.replace("\r", "\n");
131 
132         return content;
133     }
134 
135     protected String runRegexp(
136         String content, String regexp, String replacement) {
137 
138         Matcher matcher =
139             Pattern.compile(regexp, Pattern.MULTILINE).matcher(content);
140 
141         StringBuffer sb = new StringBuffer();
142 
143         while (matcher.find()) {
144             matcher.appendReplacement(sb, replacement);
145         }
146 
147         matcher.appendTail(sb);
148 
149         return sb.toString();
150     }
151 
152     private Map<String, String> _regexps = new LinkedHashMap<String, String>();
153 
154 }