Software /
code /
prosody
File
util/hex.lua @ 6756:2e75b94e3a1e
mod_storage_sql2: Add prosodyctl command to upgrade tables from the command-line
author | Matthew Wild <mwild1@gmail.com> |
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date | Tue, 07 Jul 2015 17:41:09 +0100 |
parent | 6545:ec566d7cd518 |
child | 6802:442019e955dc |
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local s_char = string.char; local s_format = string.format; local s_gsub = string.gsub; 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, "..", hex_to_char)); end return { to = to, from = from }