From cdd8c4b9a1544b64f2176df64dd7e24a2e08b74a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Andr=C3=A9=20Tanner?= <mat@brain-dump.org>
Date: Thu, 26 Jan 2017 20:40:05 +0100
Subject: sam: disallow destructive commands in groups and looping constructs

This should fix segfaults for commands like `:{ q i/foo/ }` or
`:x/pattern/ q` where a command invalidates the current window.

The checks are a bit too strict, for example a destructive command at the
end of a non-nested group would be fine, but is currently also rejected.
---
 sam.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sam.h')

diff --git a/sam.h b/sam.h
index 0ea9c2f..e94b175 100644
--- a/sam.h
+++ b/sam.h
@@ -18,6 +18,8 @@ enum SamError {
 	SAM_ERR_MARK,
 	SAM_ERR_CONFLICT,
 	SAM_ERR_WRITE_CONFLICT,
+	SAM_ERR_LOOP_INVALID_CMD,
+	SAM_ERR_GROUP_INVALID_CMD,
 };
 
 bool sam_init(Vis*);
-- 
cgit v1.2.3