diff options
Diffstat (limited to 'src/xml.c')
| -rw-r--r-- | src/xml.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/src/xml.c b/src/xml.c index d087a34a5e0..7afaa63c421 100644 --- a/src/xml.c +++ b/src/xml.c @@ -18,15 +18,15 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> +#include "lisp.h" +#include "buffer.h" + #ifdef HAVE_LIBXML2 #include <libxml/tree.h> #include <libxml/parser.h> #include <libxml/HTMLparser.h> -#include "lisp.h" -#include "buffer.h" - #ifdef WINDOWSNT @@ -291,16 +291,43 @@ If DISCARD-COMMENTS is non-nil, all HTML comments are discarded. */) return parse_region (start, end, base_url, discard_comments, false); return Qnil; } +#endif /* HAVE_LIBXML2 */ + +DEFUN ("libxml-available-p", Flibxml_available_p, Slibxml_available_p, 0, 0, 0, + doc: /* Return t if libxml2 support is available in this instance of Emacs.*/) + (void) +{ +#ifdef HAVE_LIBXML2 +# ifdef WINDOWSNT + Lisp_Object found = Fassq (Qlibxml2, Vlibrary_cache); + if (CONSP (found)) + return XCDR (found); + else + { + Lisp_Object status; + status = init_libxml2_functions () ? Qt : Qnil; + Vlibrary_cache = Fcons (Fcons (Qlibxml2, status), Vlibrary_cache); + return status; + } +# else + return Qt; +# endif /* WINDOWSNT */ +#else + return Qnil; +#endif /* HAVE_LIBXML2 */ +} + /*********************************************************************** Initialization ***********************************************************************/ void syms_of_xml (void) { +#ifdef HAVE_LIBXML2 defsubr (&Slibxml_parse_html_region); defsubr (&Slibxml_parse_xml_region); +#endif + defsubr (&Slibxml_available_p); } - -#endif /* HAVE_LIBXML2 */ |