Software / code / prosody
Changeset
6375:76d8907d5301
util.hex: Small util lib for converting to/from hex strings
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Tue, 02 Sep 2014 17:56:42 +0100 |
| parents | 6374:f1dd1716aa9d |
| children | 6376:bd812a7713ad |
| files | util/hex.lua |
| diffstat | 1 files changed, 19 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/util/hex.lua Tue Sep 02 17:56:42 2014 +0100 @@ -0,0 +1,19 @@ +local s_char = string.char; + +local function char_to_hex(c) + return ("%02x"):format(c:byte()) +end + +local function hex_to_char(h) + return s_char(tonumber(h, 16)); +end + +function to(s) + return s:gsub(".", char_to_hex); +end + +function from(s) + return s:gsub("..", hex_to_char); +end + +return { to = to, from = from }
