base2base
Presentation
Convert strings representing numbers between different bases.
Usage
You should not use base36. But let's say you have legacy code to work with and need to convert binary from and to base36:
local base2base = require "base2base"
local alphabet_b36 = base2base.ALPHABET_B62:sub(1,36)
local from_b36 = base2base.converter(alphabet_b36, base2base.ALPHABET_B256)
local to_b36 = base2base.converter(base2base.ALPHABET_B256, alphabet_b36)
local bin = from_b36("yolo42")
assert(to_b36(bin) == "yolo42")
For hexadecimal, there are faster functions available directly in the module.
local bin = base2base.from_hex("1234dead")
assert(base2base.to_hex(bin) == "1234dead")
There are also helpers for base36, so you can do this:
local bin = base2base.from_b36("yolo42")
assert(base2base.to_b36(bin) == "yolo42")
Finally, there are helpers for padded base64:
base2base.to_b64("Ma") -- "TWE="
base2base.from_b64("TWE=") -- "Ma"
Copyright
Copyright (c) 2016 Pierre Chapuis