tidy_is_xhtml
Indicates if the document is a XHTML document
Description
Procedural style:
booltidy_is_xhtml
resourcetidy
Object oriented style:
objecttidy->isXhtml
This function returns &true; if the specified tidy
object is a XHTML document, or &false; otherwise.
This function is not yet implemented in the Tidylib itself, so it always
return &false;.