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* mu-msg-file: ensure there are no duplicates in References: + Reply-To

This commit is contained in:
Dirk-Jan C. Binnema 2011-06-18 18:45:32 +03:00
parent 023efcc0ae
commit d0d8356248
1 changed files with 32 additions and 2 deletions
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34
src/mu-msg-file.c
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@ -692,12 +692,40 @@ get_msgids_reverted (MuMsgFile *self, const gchar *header)
return msgids;
}
static GSList*
remove_dups (GSList *refs)
{
GHashTable *hash;
GSList *cur, *oldcur;
hash = g_hash_table_new (g_str_hash, g_str_equal);
for (oldcur = NULL, cur = refs; cur; cur = g_slist_next (cur)) {
/* already seen? note, the first one cannot be a dup,
* so oldcur won't be NULL, and refs stays valid */
if (g_hash_table_lookup (hash, (gchar*)cur->data)) {
oldcur->next = cur->next;
cur->next = NULL;
g_slist_free (cur);
cur = oldcur;
continue;
}
g_hash_table_insert (hash, (gchar*)cur->data,
GUINT_TO_POINTER(TRUE));
oldcur = cur;
}
g_hash_table_destroy (hash);
return refs;
}
GSList*
get_references (MuMsgFile *self)
{
GSList *refs, *inreply;
g_return_val_if_fail (self, NULL);
refs = get_msgids_reverted (self, "References");
@ -710,7 +738,9 @@ get_references (MuMsgFile *self)
g_slist_foreach (inreply, (GFunc)g_free, NULL);
g_slist_free (inreply);
}
refs = remove_dups (refs);
/* put in proper order */
return g_slist_reverse (refs);
}