public interface CDATASection extends Text
The CharacterData.data attribute holds the text that is
contained by the CDATA section. Note that this may 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.
The CDATASection interface inherits from the
CharacterData interface through the Text
interface. Adjacent CDATASection nodes are not merged by use
of the normalize method of the Node interface.
No lexical check is done on the content of a CDATA section and it is
therefore possible to have the character sequence "]]>"
in the content, which is illegal in a CDATA section per section 2.7 of [XML 1.0]. 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 "split-cdata-sections"
in the DOMConfiguration interface).
Note: Because no markup is recognized within a
CDATASection, character numeric references cannot be used as
an escape mechanism when serializing. Therefore, action needs to be taken
when serializing a CDATASection with a character encoding
where some of the contained characters cannot be represented. Failure to
do so would not produce well-formed XML.
Note: 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 any further characters in the text node. Note, however, that some code conversion libraries at the time of writing do not return an error or exception when a character is missing from the encoding, making the task of ensuring that data is not corrupted on serialization more difficult.
See also the Document Object Model (DOM) Level 3 Core Specification.
ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODEgetWholeText, isElementContentWhitespace, replaceWholeText, splitTextappendData, deleteData, getData, getLength, insertData, replaceData, setData, substringDataappendChild, cloneNode, compareDocumentPosition, getAttributes, getBaseURI, getChildNodes, getFeature, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTextContent, getUserData, hasAttributes, hasChildNodes, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, setNodeValue, setPrefix, setTextContent, setUserData Submit a bug or feature
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