patch 8.2.2694: when 'matchpairs' is empty every character beeps Commit: https://github.com/vim/vim/commit/5b8cabfef7c3707f3e53e13844d90e5a217e1e84 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Apr 2 18:55:57 2021 +0200 patch 8.2.2694: when 'matchpairs' is empty every character beeps Problem: When 'matchpairs' is empty every character beeps. (Marco Hinz) Solution: Bail out when no character in 'matchpairs' was found. (closes #8053) Add assert_nobeep().

--- a/src/search.c
+++ b/src/search.c
@@ -2817,6 +2817,8 @@ showmatch(
 	if (*p == NUL)
 	    return;
     }
+    if (*p == NUL)
+	return;
 
     if ((lpos = findmatch(NULL, NUL)) == NULL)	    // no match, so beep
 	vim_beep(BO_MATCH);