def value_code
import bend-collections@1.0.0.0/src/crypto/argon2/phc.bend as Phcimport Base
124def value_code(+x: U32, up: Bool) -> Maybe<&2, U32>:
125 match up:
126 case True{}:
127 Some{U32.sub(x, 65)}
128 case False{}:
129 value_low(x, in_range(x, 97, 122))