Fields.digits: def of lawful-fields@0.1.1.0
Import: import lawful-fields@0.1.1.0/fields.bend as Fields
Lines 83-85 of lawful-fields@0.1.1.0/fields.bend: https://jend.leeeet.dev/read.txt?path=lawful-fields@0.1.1.0/fields.bend&start_line=83&end_line=85

import Base
import lawful-bytes@0.1.1.0/defs.bend as D
import lawful-bytes@0.1.1.0/bytes.bend as B

# Bytes from .. to-1 are one or more decimal digits (a number of any size).
def digits(b: D.Bytes, +from: U32, +to: U32) -> D.Bytes & Bool:
  digits.go(Nat.sub(U32.to_nat(to), U32.to_nat(from)), B.at(b, from), from, U32.is_lt(from, to))

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  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_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/bytes.bend&name=at
  https://jend.leeeet.dev/definition.txt?path=lawful-bytes@0.1.1.0/defs.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=lawful-fields@0.1.1.0/fields.bend&name=digits.go