From d0538fa25ffa60fc3ef17048aa2c46423a1bf036 Mon Sep 17 00:00:00 2001
From: Bruce Hill <bruce@bruce-hill.com>
Date: Fri, 11 Sep 2020 02:55:15 -0700
Subject: Improved handling of CLI flags

---
 compiler.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'compiler.c')

diff --git a/compiler.c b/compiler.c
index 067101b..eadfd38 100644
--- a/compiler.c
+++ b/compiler.c
@@ -436,6 +436,7 @@ vm_op_t *bpeg_stringpattern(const char *str)
  */
 vm_op_t *bpeg_replacement(vm_op_t *pat, const char *replacement)
 {
+    check(pat, "Null pattern used in replacement");
     vm_op_t *op = calloc(sizeof(vm_op_t), 1);
     op->op = VM_REPLACE;
     op->start = pat->start;
-- 
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