Does XML contains only Tags and PCDATA as syntactic constructs? or is there anything more?
Cheers,
Dan
Does XML contains only Tags and PCDATA as syntactic constructs? or is there anything
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Does XML contains only Tags and PCDATA as syntactic constructs? or is there anything more?
Cheers,
Dan
The main constructs you encounter are tags, entities and text. There are others (notably: processing instructions, doctype declarations and the XML declaration) that are less common.
Entities are sequences of characters starting with a
&and ending with a;, and you normally encounter them for things like>and&and so on. They stand for other things (like particular characters, but those aren’t the only possibilities).The XML declaration is the sequence that starts with
<?xmland ends with?>that goes at the beginning of your document. It looks similar to a processing instruction (which also begins with<?) but formally isn’t.Doctype declarations begin with
<!and are where you should get an XML library instead of trying to decode things by yourself; the document type system is complicated!