01 /*
02 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
03 *
04 * This code is free software; you can redistribute it and/or modify it
05 * under the terms of the GNU General Public License version 2 only, as
06 * published by the Free Software Foundation. Sun designates this
07 * particular file as subject to the "Classpath" exception as provided
08 * by Sun in the LICENSE file that accompanied this code.
09 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
22 * have any questions.
23 */
24
25 /*
26 * This file is available under and governed by the GNU General Public
27 * License version 2 only, as published by the Free Software Foundation.
28 * However, the following notice accompanied the original version of this
29 * file and, per its terms, should not be removed:
30 *
31 * Copyright (c) 2004 World Wide Web Consortium,
32 *
33 * (Massachusetts Institute of Technology, European Research Consortium for
34 * Informatics and Mathematics, Keio University). All Rights Reserved. This
35 * work is distributed under the W3C(r) Software License [1] in the hope that
36 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
37 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
38 *
39 * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
40 */
41
42 package org.w3c.dom;
43
44 /**
45 * CDATA sections are used to escape blocks of text containing characters that
46 * would otherwise be regarded as markup. The only delimiter that is
47 * recognized in a CDATA section is the "]]>" string that ends the CDATA
48 * section. CDATA sections cannot be nested. Their primary purpose is for
49 * including material such as XML fragments, without needing to escape all
50 * the delimiters.
51 * <p>The <code>CharacterData.data</code> attribute holds the text that is
52 * contained by the CDATA section. Note that this <em>may</em> contain characters that need to be escaped outside of CDATA sections and
53 * that, depending on the character encoding ("charset") chosen for
54 * serialization, it may be impossible to write out some characters as part
55 * of a CDATA section.
56 * <p>The <code>CDATASection</code> interface inherits from the
57 * <code>CharacterData</code> interface through the <code>Text</code>
58 * interface. Adjacent <code>CDATASection</code> nodes are not merged by use
59 * of the <code>normalize</code> method of the <code>Node</code> interface.
60 * <p> No lexical check is done on the content of a CDATA section and it is
61 * therefore possible to have the character sequence <code>"]]>"</code>
62 * in the content, which is illegal in a CDATA section per section 2.7 of [<a href='http://www.w3.org/TR/2004/REC-xml-20040204'>XML 1.0</a>]. The
63 * presence of this character sequence must generate a fatal error during
64 * serialization or the cdata section must be splitted before the
65 * serialization (see also the parameter <code>"split-cdata-sections"</code>
66 * in the <code>DOMConfiguration</code> interface).
67 * <p ><b>Note:</b> Because no markup is recognized within a
68 * <code>CDATASection</code>, character numeric references cannot be used as
69 * an escape mechanism when serializing. Therefore, action needs to be taken
70 * when serializing a <code>CDATASection</code> with a character encoding
71 * where some of the contained characters cannot be represented. Failure to
72 * do so would not produce well-formed XML.
73 * <p ><b>Note:</b> One potential solution in the serialization process is to
74 * end the CDATA section before the character, output the character using a
75 * character reference or entity reference, and open a new CDATA section for
76 * any further characters in the text node. Note, however, that some code
77 * conversion libraries at the time of writing do not return an error or
78 * exception when a character is missing from the encoding, making the task
79 * of ensuring that data is not corrupted on serialization more difficult.
80 * <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 Core Specification</a>.
81 */
82 public interface CDATASection extends Text {
83 }
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