Num.digit: def of yaml-for-bend@0.1.1.0
Import: import yaml-for-bend@0.1.1.0/num.bend as Num
Lines 22-25 of yaml-for-bend@0.1.1.0/num.bend: https://jend.leeeet.dev/read.txt?path=yaml-for-bend@0.1.1.0/num.bend&start_line=22&end_line=25

import Base

# A digit's value, for digits up to base 36 ("a" and "A" are 10).
def digit(c: Char) -> Nat:
  +x = code(c)
  U32.to_nat(U32.sub(x, Bool.pick(U32, U32.is_ge(x, 97), 87, Bool.pick(U32, U32.is_ge(x, 65), 55, 48))))

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_ge
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/num.bend&name=code