From 1f3a9df87d1112d1e2d4e97fd00f02271df4e8cc Mon Sep 17 00:00:00 2001
From: Vincent Lefevre <vincent@vinc17.net>
Date: Sun, 22 Jul 2018 02:57:32 +0200
Subject: [PATCH] Improved limit-to-all detection by skipping leading spaces of
 the pattern.

There are many equivalent limit-to-all patterns, but in practice, one
may want to limit to " ~A" in order to prevent the pattern from being
recorded in the history. Thus it is important to detect at least this
pattern and similar ones.
---
 pattern.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pattern.c b/pattern.c
index cfe4a700..c8bb1859 100644
--- a/pattern.c
+++ b/pattern.c
@@ -1532,6 +1532,8 @@ int mutt_pattern_func (int op, char *prompt)
 
   if (op == MUTT_LIMIT)
   {
+    char *pbuf;
+
     /* drop previous limit pattern */
     FREE (&Context->pattern);
     if (Context->limit_pattern)
@@ -1541,7 +1543,10 @@ int mutt_pattern_func (int op, char *prompt)
       mutt_error _("No messages matched criteria.");
 
     /* record new limit pattern, unless match all */
-    if (mutt_strcmp (buf, "~A") != 0)
+    pbuf = buf;
+    while (*pbuf == ' ')
+      pbuf++;
+    if (mutt_strcmp (pbuf, "~A") != 0)
     {
       Context->pattern = simple;
       simple = NULL; /* don't clobber it */
-- 
2.50.1