From: glepnir <glephunter@gmail.com>
Date: Tue, 16 Jun 2026 19:11:38 +0000 (+0000)
Subject: patch 9.2.0656: completion: using wrong tolower() in smartcase filtering
X-Git-Tag: v9.2.0656^0
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9f5d32cf5caf2476efe4ad1da2d4455920bcc28c;p=thirdparty%2Fvim.git

patch 9.2.0656: completion: using wrong tolower() in smartcase filtering

Problem:  ins_compl_equal_sc() uses MB_TOLOWER() on single bytes, but
          it indexes raw bytes, not decoded characters (after v9.1.0651).
Solution: Use TOLOWER_LOC(), matching what STRNICMP()/ins_compl_equal()
          does (glephunter).

closes: #20535

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
---

diff --git a/src/insexpand.c b/src/insexpand.c
index a355e29492..019fd252ac 100644
--- a/src/insexpand.c
+++ b/src/insexpand.c
@@ -1072,7 +1072,7 @@ ins_compl_equal_sc(compl_T *match, char_u *str, int len)
     for (int i = 0; i < len; ++i)
     {
 	if (i >= typed && i < longest_end
-		? MB_TOLOWER(match->cp_str.string[i]) != MB_TOLOWER(str[i])
+		? TOLOWER_LOC(match->cp_str.string[i]) != TOLOWER_LOC(str[i])
 		: match->cp_str.string[i] != str[i])
 	    return FALSE;
     }
diff --git a/src/version.c b/src/version.c
index 56f8a65908..864688f60d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -759,6 +759,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    656,
 /**/
     655,
 /**/