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Don't give up too early when collecting mime types

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Since returning exactly one match has special significance, don't
give up matching before we've found at least 2 types. Also, make
sure that we don't return the same mime type more than once.
Bug 541236.
This commit is contained in:
Matthias Clasen 2009-10-25 02:55:46 -04:00
parent 3dab24828e
commit e63262d49d
2 changed files with 87 additions and 23 deletions
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67
gio/xdgmime/xdgmimecache.c
View File

@ -444,11 +444,11 @@ cache_glob_lookup_fnmatch (const char *file_name,
}
}
if (n > 0)
return n;
if (n == n_mime_types)
break;
}
return 0;
return n;
}
static int
@ -539,6 +539,7 @@ cache_glob_lookup_suffix (const char *file_name,
{
int i, n;
n = 0;
for (i = 0; _caches[i]; i++)
{
XdgMimeCache *cache = _caches[i];
@ -547,17 +548,17 @@ cache_glob_lookup_suffix (const char *file_name,
xdg_uint32_t n_entries = GET_UINT32 (cache->buffer, list_offset);
xdg_uint32_t offset = GET_UINT32 (cache->buffer, list_offset + 4);
n = cache_glob_node_lookup_suffix (cache,
n_entries, offset,
file_name, len,
ignore_case,
mime_types,
n_mime_types);
if (n > 0)
return n;
n += cache_glob_node_lookup_suffix (cache,
n_entries, offset,
file_name, len,
ignore_case,
mime_types + n,
n_mime_types - n);
if (n == n_mime_types)
break;
}
return 0;
return n;
}
static int compare_mime_weight (const void *a, const void *b)
@ -585,7 +586,35 @@ ascii_tolower (const char *str)
}
static int
cache_glob_lookup_file_name (const char *file_name,
filter_out_dupes (MimeWeight mimes[], int n_mimes)
{
int last;
int i, j;
last = n_mimes;
for (i = 0; i < last; i++)
{
j = i + 1;
while (j < last)
{
if (strcmp (mimes[i].mime, mimes[j].mime) == 0)
{
mimes[i].weight = MAX (mimes[i].weight, mimes[j].weight);
last--;
mimes[j].mime = mimes[last].mime;
mimes[j].weight = mimes[last].weight;
}
else
j++;
}
}
return last;
}
static int
cache_glob_lookup_file_name (const char *file_name,
const char *mime_types[],
int n_mime_types)
{
@ -619,14 +648,16 @@ cache_glob_lookup_file_name (const char *file_name,
len = strlen (file_name);
n = cache_glob_lookup_suffix (lower_case, len, FALSE, mimes, n_mimes);
if (n == 0)
n = cache_glob_lookup_suffix (file_name, len, TRUE, mimes, n_mimes);
if (n < 2)
n += cache_glob_lookup_suffix (file_name, len, TRUE, mimes + n, n_mimes - n);
free (lower_case);
/* Last, try fnmatch */
if (n == 0)
n = cache_glob_lookup_fnmatch (file_name, mimes, n_mimes);
if (n < 2)
n += cache_glob_lookup_fnmatch (file_name, mimes + n, n_mimes - n);
n = filter_out_dupes (mimes, n);
qsort (mimes, n, sizeof (MimeWeight), compare_mime_weight);

43
gio/xdgmime/xdgmimeglob.c
View File

@ -37,6 +37,10 @@
#include <string.h>
#include <fnmatch.h>
#ifndef MAX
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#endif
#ifndef FALSE
#define FALSE (0)
#endif
@ -400,6 +404,34 @@ ascii_tolower (const char *str)
return lower;
}
static int
filter_out_dupes (MimeWeight mimes[], int n_mimes)
{
int last;
int i, j;
last = n_mimes;
for (i = 0; i < last; i++)
{
j = i + 1;
while (j < last)
{
if (strcmp (mimes[i].mime, mimes[j].mime) == 0)
{
mimes[i].weight = MAX (mimes[i].weight, mimes[j].weight);
last--;
mimes[j].mime = mimes[last].mime;
mimes[j].weight = mimes[last].weight;
}
else
j++;
}
}
return last;
}
int
_xdg_glob_hash_lookup_file_name (XdgGlobHash *glob_hash,
const char *file_name,
@ -412,7 +444,6 @@ _xdg_glob_hash_lookup_file_name (XdgGlobHash *glob_hash,
int n_mimes = 10;
int len;
char *lower_case;
int try_lower_case;
/* First, check the literals */
@ -447,11 +478,11 @@ _xdg_glob_hash_lookup_file_name (XdgGlobHash *glob_hash,
len = strlen (file_name);
n = _xdg_glob_hash_node_lookup_file_name (glob_hash->simple_node, lower_case, len, FALSE,
mimes, n_mimes);
if (n == 0)
n = _xdg_glob_hash_node_lookup_file_name (glob_hash->simple_node, file_name, len, TRUE,
mimes, n_mimes);
if (n < 2)
n += _xdg_glob_hash_node_lookup_file_name (glob_hash->simple_node, file_name, len, TRUE,
mimes + n, n_mimes - n);
if (n == 0)
if (n < 2)
{
for (list = glob_hash->full_list; list && n < n_mime_types; list = list->next)
{
@ -465,6 +496,8 @@ _xdg_glob_hash_lookup_file_name (XdgGlobHash *glob_hash,
}
free (lower_case);
n = filter_out_dupes (mimes, n);
qsort (mimes, n, sizeof (MimeWeight), compare_mime_weight);
if (n_mime_types < n)