From d38584386dabc5cba4652b5c285b8389a2b4d415 Mon Sep 17 00:00:00 2001
From: "Adrian C. (anrxc)" <anrxc@sysphere.org>
Date: Tue, 15 Feb 2011 05:47:21 +0100
Subject: helpers: properly handle magic characters

---
 helpers.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'helpers.lua')

diff --git a/helpers.lua b/helpers.lua
index c61468e..ef92bfa 100644
--- a/helpers.lua
+++ b/helpers.lua
@@ -9,6 +9,7 @@
 
 -- {{{ Grab environment
 local pairs = pairs
+local tonumber = tonumber
 local io = { open = io.open }
 local setmetatable = setmetatable
 local getmetatable = getmetatable
@@ -53,7 +54,9 @@ end
 -- {{{ Format a string with args
 function format(format, args)
     for var, val in pairs(args) do
-        format = format:gsub("$" .. var, val)
+        format = format:gsub("$" .. (tonumber(var) and var or
+            var:gsub("[-+?*]", function(i) return "%"..i end)),
+        val)
     end
 
     return format
-- 
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