is there any connection between notation of CDATA sections and internal DTD definition?
i mean both of these things are closed in that <! > element… so i wondered if there is any special meaning for this kind of element or is it just made exception considered as standard for defining CDATA and DTD ?
if you can’t understand what’s on my mind simply said my question is “what is the function of <! > element in general? (if there is some)”
It is a markup declaration. It is meant for the XML parser to interpret rather than be considered as part of the data of the XML document.