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-rw-r--r--src/digraph.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/digraph.c b/src/digraph.c
index 892a3ed62..667ff0716 100644
--- a/src/digraph.c
+++ b/src/digraph.c
@@ -2439,8 +2439,11 @@ ex_loadkeymap(eap)
kp->to = vim_strnsave(p, (int)(s - p));
if (kp->from == NULL || kp->to == NULL
- || STRLEN(kp->from) + STRLEN(kp->to) >= KMAP_LLEN)
+ || STRLEN(kp->from) + STRLEN(kp->to) >= KMAP_LLEN
+ || *kp->from == NUL || *kp->to == NUL)
{
+ if (kp->to != NULL && *kp->to == NUL)
+ EMSG(_("E791: Empty keymap entry"));
vim_free(kp->from);
vim_free(kp->to);
}