JDK14/Java14源码在线阅读

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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/*
 * This file is available under and governed by the GNU General Public
 * License version 2 only, as published by the Free Software Foundation.
 * However, the following notice accompanied the original version of this
 * file and, per its terms, should not be removed:
 *
 * Copyright (c) 2004 World Wide Web Consortium,
 *
 * (Massachusetts Institute of Technology, European Research Consortium for
 * Informatics and Mathematics, Keio University). All Rights Reserved. This
 * work is distributed under the W3C(r) Software License [1] in the hope that
 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
 */

package org.w3c.dom;

/**
 * CDATA sections are used to escape blocks of text containing characters that
 * would otherwise be regarded as markup. The only delimiter that is
 * recognized in a CDATA section is the "]]>" string that ends the CDATA
 * section. CDATA sections cannot be nested. Their primary purpose is for
 * including material such as XML fragments, without needing to escape all
 * the delimiters.
 * <p>The <code>CharacterData.data</code> attribute holds the text that is
 * contained by the CDATA section. Note that this <em>may</em> contain characters that need to be escaped outside of CDATA sections and
 * that, depending on the character encoding ("charset") chosen for
 * serialization, it may be impossible to write out some characters as part
 * of a CDATA section.
 * <p>The <code>CDATASection</code> interface inherits from the
 * <code>CharacterData</code> interface through the <code>Text</code>
 * interface. Adjacent <code>CDATASection</code> nodes are not merged by use
 * of the <code>normalize</code> method of the <code>Node</code> interface.
 * <p> No lexical check is done on the content of a CDATA section and it is
 * therefore possible to have the character sequence <code>"]]&gt;"</code>
 * 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
 * presence of this character sequence must generate a fatal error during
 * serialization or the cdata section must be splitted before the
 * serialization (see also the parameter <code>"split-cdata-sections"</code>
 * in the <code>DOMConfiguration</code> interface).
 * <p ><b>Note:</b> Because no markup is recognized within a
 * <code>CDATASection</code>, character numeric references cannot be used as
 * an escape mechanism when serializing. Therefore, action needs to be taken
 * when serializing a <code>CDATASection</code> with a character encoding
 * where some of the contained characters cannot be represented. Failure to
 * do so would not produce well-formed XML.
 * <p ><b>Note:</b> One potential solution in the serialization process is to
 * end the CDATA section before the character, output the character using a
 * character reference or entity reference, and open a new CDATA section for

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