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Bug 673047 - gunicollate is broken on OS X

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Apply slightly modified patch from Camillo Lugaresi which fixes
gunicollate for OSX >= 10.6. It was totally hilariously broken
for anyone on 10.6 and later, I dont know if it's now broken
on 10.5, but better fix it for the vast majority of users.
This commit is contained in:
Michael Natterer 2012-11-16 18:48:09 +01:00
parent 11e306a759
commit ef8510be09
1 changed files with 14 additions and 15 deletions
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29
glib/gunicollate.c
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@ -217,29 +217,28 @@ collate_key_to_string (UCCollationValue *key,
gsize key_len)
{
gchar *result;
gsize result_len;
gsize result_len = 0;
const gsize start = 2 * sizeof (void *) / sizeof (UCCollationValue);
gsize i;
/* Pretty smart algorithm here: ignore first eight bytes of the
* collation key. It doesn't produce results equivalent to
* UCCompareCollationKeys's, but the difference seems to be only
* that UCCompareCollationKeys in some cases produces 0 where our
* comparison gets -1 or 1. */
if (key_len * sizeof (UCCollationValue) <= 8)
/* 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.
*/
if (key_len <= start)
return g_strdup ("");
result_len = 0;
for (i = 8; i < key_len * sizeof (UCCollationValue); i++)
/* there may be nul bytes, encode byteval+1 */
result_len += utf8_encode (NULL, *((guchar*)key + i) + 1);
for (i = start; i < key_len; i++)
result_len += utf8_encode (NULL, g_htonl (key[i] + 1));
result = g_malloc (result_len + 1);
result_len = 0;
for (i = 8; i < key_len * sizeof (UCCollationValue); i++)
result_len += utf8_encode (result + result_len, *((guchar*)key + i) + 1);
for (i = start; i < key_len; i++)
result_len += utf8_encode (result + result_len, g_htonl (key[i] + 1));
result[result_len] = '\0';
result[result_len] = 0;
return result;
}