File

util/hex.lua @ 12070:e662c172ea0f

mod_smacks: Remove references to connection on hibernation Still having the connection on the session may cause unintentional behavior, such as the session being treated as if connected, even tho the connection has been closed.
author Kim Alvefur <zash@zash.se>
date Sat, 18 Dec 2021 12:50:53 +0100
parent 6802:442019e955dc
child 12355:a0ff5c438e9d
line wrap: on
line source

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 = {};

do
	local char, hex;
	for i = 0,255 do
		char, hex = s_char(i), s_format("%02x", i);
		char_to_hex[char] = hex;
		hex_to_char[hex] = char;
	end
end

local function to(s)
	return (s_gsub(s, ".", char_to_hex));
end

local function from(s)
	return (s_gsub(s_lower(s), "%X*(%x%x)%X*", hex_to_char));
end

return { to = to, from = from }