patch 8.2.4675: no error for missing expression after :elseif
Problem: No error for missing expression after :elseif. (Ernie Rael)
Solution: Check for missing expression. (closes #10068)
diff --git a/src/ex_eval.c b/src/ex_eval.c
index e3c544b..9a2792a 100644
--- a/src/ex_eval.c
+++ b/src/ex_eval.c
@@ -1146,7 +1146,12 @@
if (eap->cmdidx == CMD_elseif)
{
- result = eval_to_bool(eap->arg, &error, eap, skip);
+ // When skipping we ignore most errors, but a missing expression is
+ // wrong, perhaps it should have been "else".
+ if (skip && ends_excmd(*eap->arg))
+ semsg(_(e_invalid_expression_str), eap->arg);
+ else
+ result = eval_to_bool(eap->arg, &error, eap, skip);
// When throwing error exceptions, we want to throw always the first
// of several errors in a row. This is what actually happens when