int
_xdg_mime_mime_type_subclass (const char *mime,
const char *base)
{
const char *umime, *ubase;
const char **parents;
if (_caches)
return _xdg_mime_cache_mime_type_subclass (mime, base);
umime = _xdg_mime_unalias_mime_type (mime);
ubase = _xdg_mime_unalias_mime_type (base);
if (strcmp (umime, ubase) == 0)
return 1;
#if 1
/* Handle supertypes */
if (xdg_mime_is_super_type (ubase) &&
xdg_mime_media_type_equal (umime, ubase))
return 1;
#endif
/* Handle special cases text/plain and application/octet-stream */
if (strcmp (ubase, "text/plain") == 0 &&
strncmp (umime, "text/", 5) == 0)
return 1;
if (strcmp (ubase, "application/octet-stream") == 0 &&
strncmp (umime, "inode/", 6) != 0)
return 1;
parents = _xdg_mime_parent_list_lookup (parent_list, umime);
for (; parents && *parents; parents++)
{
if (_xdg_mime_mime_type_subclass (*parents, ubase))
return 1;
}
return 0;
}
int
_xdg_mime_cache_mime_type_subclass (const char *mime,
const char *base)
{
const char *umime, *ubase;
int i, j, min, max, med, cmp;
umime = _xdg_mime_cache_unalias_mime_type (mime);
ubase = _xdg_mime_cache_unalias_mime_type (base);
if (strcmp (umime, ubase) == 0)
return 1;
/* We really want to handle text/ * in GtkFileFilter, so we just
* turn on the supertype matching
*/
#if 1
/* Handle supertypes */
if (is_super_type (ubase) &&
xdg_mime_media_type_equal (umime, ubase))
return 1;
#endif
/* Handle special cases text/plain and application/octet-stream */
if (strcmp (ubase, "text/plain") == 0 &&
strncmp (umime, "text/", 5) == 0)
return 1;
if (strcmp (ubase, "application/octet-stream") == 0)
return 1;
for (i = 0; _caches[i]; i++)
{
XdgMimeCache *cache = _caches[i];
xdg_uint32_t list_offset = GET_UINT32 (cache->buffer, 8);
xdg_uint32_t n_entries = GET_UINT32 (cache->buffer, list_offset);
xdg_uint32_t offset, n_parents, parent_offset;
min = 0;
max = n_entries - 1;
while (max >= min)
{
med = (min + max)/2;
offset = GET_UINT32 (cache->buffer, list_offset + 4 + 8 * med);
cmp = strcmp (cache->buffer + offset, umime);
if (cmp < 0)
min = med + 1;
else if (cmp > 0)
max = med - 1;
else
{
offset = GET_UINT32 (cache->buffer, list_offset + 4 + 8 * med + 4);
n_parents = GET_UINT32 (cache->buffer, offset);
for (j = 0; j < n_parents; j++)
{
parent_offset = GET_UINT32 (cache->buffer, offset + 4 + 4 * j);
if (_xdg_mime_cache_mime_type_subclass (cache->buffer + parent_offset, ubase))
return 1;
}
break;
}
}
}
return 0;
}
