From ddf7f691b717e35f5dccf49fde62c1b6eec2d39c Mon Sep 17 00:00:00 2001 From: Kim Alvefur Date: Wed, 26 Aug 2015 14:32:20 +0200 Subject: util.hex: Normalize hex to lowercase and discard non-hex input --- util/hex.lua | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'util') diff --git a/util/hex.lua b/util/hex.lua index e41f4863..4cc28d33 100644 --- a/util/hex.lua +++ b/util/hex.lua @@ -1,6 +1,7 @@ local s_char = string.char; local s_format = string.format; local s_gsub = string.gsub; +local s_lower = string.lower; local char_to_hex = {}; local hex_to_char = {}; @@ -19,7 +20,7 @@ local function to(s) end local function from(s) - return (s_gsub(s, "..", hex_to_char)); + return (s_gsub(s_lower(s), "%X*(%x%x)%X*", hex_to_char)); end return { to = to, from = from } -- cgit v1.2.3