Base32

RFC 4648 and Crockford, demoing the p/moul/x/daily/base32 library.

input	RFC 4648	Crockford
(empty)	``	``
`f`	`MY======`	`CR`
`fo`	`MZXQ====`	`CSQG`
`foo`	`MZXW6===`	`CSQPY`
`foob`	`MZXW6YQ=`	`CSQPYRG`
`fooba`	`MZXW6YTB`	`CSQPYRK1`
`foobar`	`MZXW6YTBOI======`	`CSQPYRK1E8`

Crockford forgives

hello encodes to D1JPRV3F, and all of these decode back to it:

D1JPRV3F → hello ✅
d1jprv3f → hello ✅
D1-JPRV3F → hello ✅

Crockford folds case, reads I/L as 1 and O as 0, and ignores hyphens — so an identifier survives being read aloud and typed back. U is left out of the alphabet on purpose.