Tokens.nat_value: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/rules/tokens.bend as Tokens
Lines 81-83 of bolt@1.27.0.0/src/rules/tokens.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/rules/tokens.bend&start_line=81&end_line=83

import Base

# a Nat literal's value (`12n` is 12); none for anything else or past U32
def nat_value(+tt: String) -> Maybe<&2, U32>:
  Bool.pick(Maybe<&2, U32>, nat_ok(String.to_list(tt)), U32.read(stem(tt)), None{})

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=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.to_list
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.read
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/rules/tokens.bend&name=nat_ok
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/rules/tokens.bend&name=stem