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85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
//
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// CDATASection.h
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//
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// Library: XML
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// Package: DOM
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// Module: DOM
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//
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// Definition of the DOM CDATASection class.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef DOM_CDATASection_INCLUDED
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#define DOM_CDATASection_INCLUDED
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#include "Poco/XML/XML.h"
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#include "Poco/DOM/Text.h"
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namespace Poco {
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namespace XML {
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class XML_API CDATASection: public Text
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/// CDATA sections are used to escape blocks of text containing characters that
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/// would otherwise be regarded as markup. The only delimiter that is recognized
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/// in a CDATA section is the "]]>" string that ends the CDATA section. CDATA
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/// sections cannot be nested. Their primary purpose is for including material
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/// such as XML fragments, without needing to escape all the delimiters.
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///
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/// The DOMString attribute of the Text node holds the text that is contained
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/// by the CDATA section. Note that this may contain characters that need to
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/// be escaped outside of CDATA sections and that, depending on the character
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/// encoding ("charset") chosen for serialization, it may be impossible to write
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/// out some characters as part of a CDATA section.
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///
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/// The CDATASection interface inherits from the CharacterData interface through
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/// the Text interface. Adjacent CDATASection nodes are not merged by use of
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/// the normalize method on the Element interface.
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///
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/// Note: Because no markup is recognized within a CDATASection, character numeric
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/// references cannot be used as an escape mechanism when serializing. Therefore,
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/// action needs to be taken when serializing a CDATASection with a character
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/// encoding where some of the contained characters cannot be represented. Failure
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/// to do so would not produce well-formed XML.
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/// One potential solution in the serialization process is to end the CDATA
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/// section before the character, output the character using a character reference
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/// or entity reference, and open a new CDATA section for any further characters
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/// in the text node. Note, however, that some code conversion libraries at
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/// the time of writing do not return an error or exception when a character
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/// is missing from the encoding, making the task of ensuring that data is not
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/// corrupted on serialization more difficult.
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{
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public:
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// Text
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Text* splitText(unsigned long offset);
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// Node
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const XMLString& nodeName() const;
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unsigned short nodeType() const;
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protected:
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CDATASection(Document* pOwnerDocument, const XMLString& data);
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CDATASection(Document* pOwnerDocument, const CDATASection& sec);
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~CDATASection();
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Node* copyNode(bool deep, Document* pOwnerDocument) const;
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private:
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static const XMLString NODE_NAME;
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friend class Document;
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};
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} } // namespace Poco::XML
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#endif // DOM_CDATASection_INCLUDED
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