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/* block-level tags for passing html blocks through the blender
*/
#define __WITHOUT_AMALLOC 1
#include "cstring.h"
#include "tags.h"
STRING(struct kw) extratags;
/* the standard collection of tags are built and sorted when
* discount is configured, so all we need to do is pull them
* in and use them.
*
* Additional tags still need to be allocated, sorted, and deallocated.
*/
#include "blocktags"
/* define an additional html block tag
*/
void
mkd_define_tag(char *id, int selfclose)
{
struct kw *p;
/* only add the new tag if it doesn't exist in
* either the standard or extra tag tables.
*/
if ( !(p = mkd_search_tags(id, strlen(id))) ) {
/* extratags could be deallocated */
if ( S(extratags) == 0 )
CREATE(extratags);
p = &EXPAND(extratags);
p->id = id;
p->size = strlen(id);
p->selfclose = selfclose;
}
}
/* case insensitive string sort (for qsort() and bsearch() of block tags)
*/
static int
casort(struct kw *a, struct kw *b)
{
if ( a->size != b->size )
return a->size - b->size;
return strncasecmp(a->id, b->id, b->size);
}
/* stupid cast to make gcc shut up about the function types being
* passed into qsort() and bsearch()
*/
typedef int (*stfu)(const void*,const void*);
/* sort the list of extra html block tags for later searching
*/
void
mkd_sort_tags()
{
qsort(T(extratags), S(extratags), sizeof(struct kw), (stfu)casort);
}
/* look for a token in the html block tag list
*/
struct kw*
mkd_search_tags(char *pat, int len)
{
struct kw key;
struct kw *ret;
key.id = pat;
key.size = len;
if ( (ret=bsearch(&key,blocktags,NR_blocktags,sizeof key,(stfu)casort)) )
return ret;
if ( S(extratags) )
return bsearch(&key,T(extratags),S(extratags),sizeof key,(stfu)casort);
return 0;
}
/* destroy the extratags list (for shared libraries)
*/
void
mkd_deallocate_tags()
{
if ( S(extratags) > 0 )
DELETE(extratags);
} /* mkd_deallocate_tags */
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