From 7f4f0fd225f78ddde0c9c65bb1e2aa074c00949b Mon Sep 17 00:00:00 2001
From: Zefram <zefram@fysh.org>
Date: Fri, 13 Jun 2014 08:34:29 +0100
Subject: [PATCH] Use plain substring search in craft guide

The user input was being erroneously treated as a lua regexp.
---
 internal.lua | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/internal.lua b/internal.lua
index 335af7a..7724c9d 100644
--- a/internal.lua
+++ b/internal.lua
@@ -97,10 +97,6 @@ end
 function unified_inventory.apply_filter(player, filter)
 	local player_name = player:get_player_name()
 	local lfilter = string.lower(filter)
-	if not pcall(function() ("technic:test"):find(lfilter) end) then
-		-- Filter is invalid
-		lfilter = ""
-	end
 	local ffilter
 	if lfilter:sub(1, 6) == "group:" then
 		local groups = lfilter:sub(7):split(",")
@@ -116,7 +112,7 @@ function unified_inventory.apply_filter(player, filter)
 		ffilter = function(name, def)
 			local lname = string.lower(name)
 			local ldesc = string.lower(def.description)
-			return string.find(lname, lfilter) or string.find(ldesc, lfilter)
+			return string.find(lname, lfilter, 1, true) or string.find(ldesc, lfilter, 1, true)
 		end
 	end
 	unified_inventory.filtered_items_list[player_name]={}