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Java > Open Source Codes > org > htmlcleaner > DoctypeToken


1 /* Copyright (c) 2006-2007, Vladimir Nikic
2     All rights reserved.
3     
4     Redistribution and use of this software in source and binary forms,
5     with or without modification, are permitted provided that the following
6     conditions are met:
7     
8     * Redistributions of source code must retain the above
9       copyright notice, this list of conditions and the
10       following disclaimer.
11     
12     * Redistributions in binary form must reproduce the above
13       copyright notice, this list of conditions and the
14       following disclaimer in the documentation and/or other
15       materials provided with the distribution.
16     
17     * The name of HtmlCleaner may not be used to endorse or promote
18       products derived from this software without specific prior
19       written permission.
20
21     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24     ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25     LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28     INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31     POSSIBILITY OF SUCH DAMAGE.
32     
33     You can contact Vladimir Nikic by sending e-mail to
34     nikic_vladimir@yahoo.com. Please include the word "HtmlCleaner" in the
35     subject line.
36 */
37
38 package org.htmlcleaner;
39
40 import java.io.IOException JavaDoc;
41
42 import org.htmlcleaner.BaseToken;
43
44 /**
45  * <p>HTML doctype token.</p>
46  *
47  * Created by: Vladimir Nikic<br/>
48  * Date: November, 2006.
49  */
50 public class DoctypeToken implements BaseToken {
51
52     private String JavaDoc part1;
53     private String JavaDoc part2;
54     private String JavaDoc part3;
55     private String JavaDoc part4;
56
57     public DoctypeToken(String JavaDoc part1, String JavaDoc part2, String JavaDoc part3, String JavaDoc part4) {
58         this.part1 = part1 != null ? part1.toUpperCase() : part1;
59         this.part2 = part2 != null ? part2.toUpperCase() : part2;
60         this.part3 = clean(part3);
61         this.part4 = clean(part4);
62     }
63     
64     private String JavaDoc clean(String JavaDoc s) {
65         if (s != null) {
66             s = s.replace('>', ' ');
67             s = s.replace('<', ' ');
68             s = s.replace('&', ' ');
69             s = s.replace('\'', ' ');
70             s = s.replace('\"', ' ');
71         }
72         
73         return s;
74     }
75     
76     public boolean isValid() {
77         if ( part1 == null || "".equals(part1) ) {
78             return false;
79         }
80         
81         if ( !"public".equalsIgnoreCase(part2) && !"system".equalsIgnoreCase(part2) ) {
82             return false;
83         }
84         
85         if ( "system".equalsIgnoreCase(part2) && part4 != null && !"".equals(part4) ) {
86             return false;
87         }
88         
89         if ( "public".equalsIgnoreCase(part2) && (part4 == null || "".equals(part4)) ) {
90             return false;
91         }
92         
93         return true;
94     }
95
96     public String JavaDoc getContent() {
97         String JavaDoc result = "<!DOCTYPE " + part1 + " ";
98         result += part2 + " \"" + part3 + "\"";
99         if ( part4 != null && !"".equals(part4) ) {
100             result += " \"" + part4 + "\"";
101         }
102         
103         result += ">";
104         
105         return result;
106     }
107
108     public String JavaDoc toString() {
109         return getContent();
110     }
111     
112     public String JavaDoc getName() {
113         return "";
114     }
115     
116     public void serialize(XmlSerializer xmlSerializer) throws IOException JavaDoc {
117         xmlSerializer.getWriter().write(getContent() + "\n");
118     }
119
120 }
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