What is CDATA section in XML?
What is CDATA section in XML?
A CDATA section is used to mark a section of an XML document, so that the XML parser interprets it only as character data, and not as markup. It comes handy when one XML data need to be embedded within another XML document.
What are XML reserved characters?
XML doesn’t have any notion of “reserved characters”. It has predefined entities which represent the most of the characters which may (depending on context) have special meaning in an XML document ( ” , < , > , & ‘ ).
What does CDATA mean in HTML?
character data
The term CDATA, meaning character data, is used for distinct, but related, purposes in the markup languages SGML and XML. The term indicates that a certain portion of the document is general character data, rather than non-character data or character data with a more specific, limited structure.
HOW include CDATA in XML?
How to use it. CDATA sections may be added anywhere character data may occur; they are used to escape blocks of text containing characters which would otherwise be recognized as markup. CDATA sections begin with the string ” “.
What are XML characters?
Using Special Characters in XML
| Symbol (name) | Escape Sequence |
|---|---|
| < (less-than) | < or < |
| > (greater-than) | > or > |
| & (ampersand) | & |
| ‘ (apostrophe or single quote) | ‘ |
Is CDATA valid in HTML?
5 Answers. The CDATA structure isn’t really for HTML at all, it’s for XML. People sometimes use them in XHTML inside script tags because it removes the need for them to escape < , > and & characters. It’s unnecessary in HTML though, since script tags in HTML are already parsed like CDATA sections.
Does CDATA follow XML syntax?
CDATA stands for Character Data. CDATA opening/closing tag between data that could be interpreted as XML markup, but not actually. You can use for escaping some characters, otherwise this will be treated as regular XML.
What is the correct syntax of the CDATA section in an XML document?
A CDATA section begins with the character sequence [CDATA[ and ends with the character sequence ]]>. Between the two character sequences, an XML processor ignores all markup characters such as <, >, and &. The only markup an XML pro-cessor recognizes inside a CDATA section is the closing character sequence ]>.
What is CDATA (XML character data)?
Introduction to XML CDATA XML Character data (CDATA) is defined as Blocks of texts and a type of XML Node recognized by the mark-up languages but are not parsed by the parsers. This is used to solve the inclusion of the mathematical term in the XML document. To pass a math equation <,> CDATA is used to include in the code section.
What characters are not allowed in CDATA?
[CDATA [ and ends with the character sequence ]]>. Between the two character sequences, an XML processor ignores all markup characters such as <, >, and &. The only markup an XML pro-cessor recognizes inside a CDATA section is the closing character sequence ]>.
Why some reserved characters in PCDATA are not allowed during parsing?
Some reserved characters in PCDATA are not allowed in the XML document during parsing which would give an error in the browser. To get around this we use CDATA section, inherited from SGML. While Executing the file a node with CDATA keyword section is parsed, the parser skips the inner data of Sections.
What is the CDATA section of a file?
The CDATA section includes all the mark-up characters exactly what they are when they are passed it to the application and eliminates nesting. In simple terms, all the entity references and XML tags are excluded by the processor while parsing and treated as character data.
