From 77432eb0479ec101aaa2287394ec8751d589aed2 Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Tue, 9 Sep 2008 16:28:19 +0000
Subject: [PATCH] * luci/libs/uvl: allow empty strings or undefined options as
 booleans too

---
 libs/uvl/luasrc/uvl/datatypes.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/uvl/luasrc/uvl/datatypes.lua b/libs/uvl/luasrc/uvl/datatypes.lua
index 971bb9d75c..fc37fa3c69 100644
--- a/libs/uvl/luasrc/uvl/datatypes.lua
+++ b/libs/uvl/luasrc/uvl/datatypes.lua
@@ -29,6 +29,8 @@ function boolean( val )
 		return true
 	elseif val == "0" or val == "no" or val == "off" or val == "false" then
 		return true
+	elseif val == "" or val == nil then
+		return true
 	end
 
 	return false
-- 
2.30.2