( resource processor, int newmask )
xslt_setopt() sets the options specified by
newmask on the given processor.
Returns the number of previous mask is possible, TRUE otherwise,
FALSE in case of an error.
newmask is a bitmask constructed with the following
XSLT_SABOPT_PARSE_PUBLIC_ENTITIES - Tell the processor
to parse public entities. By default this has been turned off.
XSLT_SABOPT_DISABLE_ADDING_META - Do not add the meta
tag "Content-Type" for HTML output. The default is set during the compilation
of the processor.
XSLT_SABOPT_DISABLE_STRIPPING - Suppress the whitespace
stripping (on data files only).
XSLT_SABOPT_IGNORE_DOC_NOT_FOUND - Consider unresolved
documents (the document() function) non-lethal.