Scan.insert: def of yaml-for-bend@0.1.1.0
Import: import yaml-for-bend@0.1.1.0/scan.bend as Scan
Lines 596-602 of yaml-for-bend@0.1.1.0/scan.bend: https://jend.leeeet.dev/read.txt?path=yaml-for-bend@0.1.1.0/scan.bend&start_line=596&end_line=602

import Base
import yaml-for-bend@0.1.1.0/token.bend as T

# A token at the end, or (+number+) before the token with that number.
def insert(out: List<&2, T.Token>, n: Nat, number: Maybe<&2, Nat>, t: T.Token) -> List<&2, T.Token>:
  match number:
    case None{}:
      t <> out
    case Some{k}:
      insert.at(Nat.sub(n, k), out, t)

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  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.sub
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/scan.bend&name=insert.at
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/token.bend&name=Token