patch 9.1.0011: regexp cannot match combining chars in collection Commit: https://github.com/vim/vim/commit/d2cc51f9a1a5a30ef5d2e732f49d7f495cae24cf Author: Christian Brabandt <cb@256bit.org> Date: Thu Jan 4 22:54:08 2024 +0100 patch 9.1.0011: regexp cannot match combining chars in collection Problem: regexp cannot match combining chars in collection Solution: Check for combining characters in regex collections for the NFA and BT Regex Engine Also, while at it, make debug mode work again. fixes #10286 closes: #12871 Signed-off-by: Christian Brabandt <cb@256bit.org>

--- a/src/regexp.h
+++ b/src/regexp.h
@@ -178,7 +178,9 @@ struct regengine
     int		(*regexec_nl)(regmatch_T *, char_u *, colnr_T, int);
     // bt_regexec_mult or nfa_regexec_mult
     long	(*regexec_multi)(regmmatch_T *, win_T *, buf_T *, linenr_T, colnr_T, int *);
-    //char_u	*expr;
+#ifdef DEBUG
+    char_u	*expr;
+#endif
 };
 
 // Flags used by vim_regsub() and vim_regsub_both()