Clock.num: def of cswap-bend-cli@0.1.0.0
Import: import cswap-bend-cli@0.1.0.0/clock.bend as Clock
Lines 90-93 of cswap-bend-cli@0.1.0.0/clock.bend: https://jend.leeeet.dev/read.txt?path=cswap-bend-cli@0.1.0.0/clock.bend&start_line=90&end_line=93

import Base

# The n digits of `s` at offset `off`, as a number.
def num(+s: String, off: Nat, +n: Nat) -> Maybe<&2, U32>:
  +slice = String.take(String.drop(s, off), n)
  num.pick(all_digits(slice) && Nat.is_eq(String.length(slice), n), slice)

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_eq
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.drop
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.length
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.take
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/clock.bend&name=all_digits
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/clock.bend&name=num.pick