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Correct collation key generation on OS X

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This ixes bug #673047.
This commit is contained in:
Carlos Sánchez de La Lama 2015-07-20 12:49:51 +02:00 committed by Matthias Clasen
parent a28429a3c6
commit 525b33c05f
2 changed files with 40 additions and 16 deletions
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36
glib/gunicollate.c
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@ -215,26 +215,30 @@ collate_key_to_string (UCCollationValue *key,
gsize key_len)
{
gchar *result;
gsize result_len = 0;
const gsize start = 2 * sizeof (void *) / sizeof (UCCollationValue);
gsize i;
gsize result_len;
long *lkey = (long *) key;
/* The first codes should be skipped: the same string on the same
* system can get different values at runtime in those positions,
* and they do not sort correctly. The exact size of the prefix
* depends on whether we are building 64 or 32 bit.
/* UCCollationValue format:
*
* UCCollateOptions (32/64 bits)
* SizeInBytes (32/64 bits)
* Value (8 bits arrey)
*
* UCCollateOptions: ordering option mask of the collator
* used to create the key. Size changes on 32-bit / 64-bit
* hosts. On 64-bits also the extra half-word seems to have
* some extra (unknown) meaning.
* SizeInBytes: size of the whole structure, in bytes
* (including UCCollateOptions and SizeInBytes fields). Size
* changes on 32-bit & 64-bit hosts.
* Value: array of bytes containing the comparison weights.
* Seems to have several sub-strings separated by \001 and \002
* chars. Also, experience shows this is directly strcmp-able.
*/
if (key_len <= start)
return g_strdup ("");
for (i = start; i < key_len; i++)
result_len += utf8_encode (NULL, g_htonl (key[i] + 1));
result_len = lkey[1];
result = g_malloc (result_len + 1);
result_len = 0;
for (i = start; i < key_len; i++)
result_len += utf8_encode (result + result_len, g_htonl (key[i] + 1));
memcpy (result, &lkey[2], result_len);
result[result_len] = '\0';
return result;

20
glib/tests/collate.c
View File

@ -1,3 +1,5 @@
#include "config.h"
#include <glib.h>
#include <locale.h>
#include <stdlib.h>
@ -231,6 +233,23 @@ const gchar *sorted2[] = {
};
const gchar *file_sorted2[] = {
/* Filename collation in OS X follows Finder style which gives
* a slightly different order from usual Linux locales. */
#ifdef HAVE_CARBON
"a-.a",
"a.a",
"aa.a",
"file:foo",
"file0000",
"file000x",
"file1",
"file5",
"file10",
"file26",
"file0027",
"file027",
"file100",
#else
"a.a",
"a-.a",
"aa.a",
@ -244,6 +263,7 @@ const gchar *file_sorted2[] = {
"file0027",
"file100",
"file:foo",
#endif
NULL
};