rb.codec

rb.codec turns any bytes into Base64 or lowercase hex text and back. A script reaches for it to pass binary data to a call that takes only valid UTF-8, such as rb.hash. These are encodings, not encryption. This script round-trips text through Base64, binary bytes through hex, and catches a decode error:

-- rebind: min_sdk=3.9.0 name=example version=1.0.0
local encoded = rb.codec.base64("hello world")
rb.log.info(encoded)                          -- aGVsbG8gd29ybGQ=
rb.log.info(rb.codec.base64_decode(encoded))  -- hello world

local bytes = "\0\255"
rb.log.info(rb.codec.hex(bytes))              -- 00ff
assert(rb.codec.hex_decode("00ff") == bytes)

local ok, err = pcall(rb.codec.hex_decode, "zz")
if not ok then
  rb.log.warn(tostring(err))
end

Signature	Returns
`rb.codec.base64(data: string) -> string`	Base64 of any bytes
`rb.codec.base64_decode(str: string) -> string`	bytes; raises `base64 decode error: <reason>`
`rb.codec.hex(data: string) -> string`	lowercase hex of any bytes
`rb.codec.hex_decode(str: string) -> string`	bytes; raises `hex decode error: <reason>`

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