From 67b377d92ace6d119bd83867b70e55c4383fc63f Mon Sep 17 00:00:00 2001
From: Tom Feist <shabble@metavore.org>
Date: Thu, 5 May 2011 08:10:25 +0100
Subject: vim-mode/vim_mode: added :set [no]option for booleans. Needs testing
 (which can't be done until I unbreak the input system :(

---
 vim-mode/vim_mode.pl | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/vim-mode/vim_mode.pl b/vim-mode/vim_mode.pl
index becf13b..51094aa 100644
--- a/vim-mode/vim_mode.pl
+++ b/vim-mode/vim_mode.pl
@@ -3298,6 +3298,21 @@ sub _setting_get {
 sub _setting_set {
     my ($name, $value) = @_;
 
+    # support the vim convention of no<param> as a way to unset booleans.
+    if ($name =~ m/^no(.*)/) {
+        my $actual_name = $1;
+        eval {
+            use warnings FATAL => qw/all/;
+            my $val = settings_get_bool($actual_name);
+        };
+        if ($@ =~ m/not found/) {
+            _debug("setting $name ($actual_name)) not found, ignoring");
+            return;
+        }
+        $name = $actual_name;
+        $value = 0;
+    }
+
     my $type = $settings->{$name}->{type};
     $name = "vim_mode_$name";
 
-- 
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