id: "unlambda"
aliases:
  - "unl"
name: "Unlambda"

install:
  apt:
    - unlambda
  scripts:
    unlambda-repl: |
      #!/usr/bin/env python3
      import argparse
      import readline
      import subprocess

      parser = argparse.ArgumentParser()
      parser.add_argument("file", nargs="?")
      args = parser.parse_args()

      if args.file:
          with open(args.file) as f:
              subprocess.run(["unlambda"], input=f.read(), encoding="utf-8")
      while True:
          try:
              code = input("λ> ")
          except KeyboardInterrupt:
              print("^C")
              continue
          except EOFError:
              print("^D")
              break
          if not code:
              continue
          subprocess.run(["unlambda"], input=code, encoding="utf-8")

repl: |
  unlambda-repl
input: |
  `.2`.8`.7`.8`.2i

main: "main.unl"
template: |
  `.
  `.!`.d`.l`.r`.o`.w`. `.,`.o`.l`.l`.e`.Hi

run: |
  unlambda-repl main.unl