From 5fd1cf5c806352b65892d0354e7f1da9be4af59d Mon Sep 17 00:00:00 2001
From: Anthony Zhang <azhang9@gmail.com>
Date: Fri, 15 Mar 2013 17:21:16 -0400
Subject: [PATCH] Use formspec_escape when available.

---
 mesecons_luacontroller/init.lua | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/mesecons_luacontroller/init.lua b/mesecons_luacontroller/init.lua
index 41bfb5f..a88984b 100644
--- a/mesecons_luacontroller/init.lua
+++ b/mesecons_luacontroller/init.lua
@@ -283,14 +283,15 @@ end
 
 local reset_meta = function(pos, code, errmsg)
 	local meta = minetest.env:get_meta(pos)
-	code = code or "";
-	code = string.gsub(code, "%[", "(") -- would otherwise
-	code = string.gsub(code, "%]", ")") -- corrupt formspec
-	errmsg = errmsg or "";
-	errmsg = string.gsub(errmsg, "%[", "(") -- would otherwise
-	errmsg = string.gsub(errmsg, "%]", ")") -- corrupt formspec
-	--code = minetest.formspec_escape(code or "")
-	--errmsg = minetest.formspec_escape(errmsg or "")
+	if minetest.formspec_escape then
+		code = minetest.formspec_escape(code or "")
+		errmsg = minetest.formspec_escape(errmsg or "")
+	else
+		code = string.gsub(code or "", "%[", "(") -- would otherwise
+		code = string.gsub(code, "%]", ")") -- corrupt formspec
+		errmsg = string.gsub(errmsg or "", "%[", "(") -- would otherwise
+		errmsg = string.gsub(errmsg, "%]", ")") -- corrupt formspec
+	end
 	meta:set_string("code", code)
 	meta:set_string("formspec", "size[10,8]"..
 		"background[-0.2,-0.25;10.4,8.75;jeija_luac_background.png]"..