patch 8.2.4551: when mapping <Esc> terminal codes are not recognized
Problem: When mapping <Esc> terminal codes are not recognized.
Solution: Specifically recognize a mapping with just <Esc> and check for
terminal codes even though there is no partial mapping.
(closes #9903)
diff --git a/src/getchar.c b/src/getchar.c
index 03d6d4d..2bc7d9d 100644
--- a/src/getchar.c
+++ b/src/getchar.c
@@ -2643,7 +2643,12 @@
max_mlen = mlen + 1;
}
- if ((mp == NULL || max_mlen > mp_match_len) && keylen != KEYLEN_PART_MAP)
+ // May check for a terminal code when there is no mapping or only a partial
+ // mapping. Also check if there is a full mapping with <Esc>, unless timed
+ // out, since that is nearly always a partial match with a terminal code.
+ if ((mp == NULL || max_mlen > mp_match_len
+ || (mp_match_len == 1 && *mp->m_keys == ESC && !*timedout))
+ && keylen != KEYLEN_PART_MAP)
{
int save_keylen = keylen;