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NAME

YAMLScript::FFI - Program in YAML

SYNOPSIS

A YAMLScript program 99-bottles.ys:

    #!/usr/bin/env yamlscript

    defn main(number=99):
      map(say):
        map(paragraph):
          (number .. 1)

    defn paragraph(num): |
      $(bottles num) of beer on the wall,
      $(bottles num) of beer.
      Take one down, pass it around.
      $(bottles (num - 1)) of beer on the wall.

    defn bottles(n):
      ???:
        (n == 0) : "No more bottles"
        (n == 1) : "1 bottle"
        :else    : "$n bottles"

Run: yamlscript 99-bottles.ys 3

    3 bottles of beer on the wall,
    3 bottles of beer.
    Take one down, pass it around.
    2 bottles of beer on the wall.

    2 bottles of beer on the wall,
    2 bottles of beer.
    Take one down, pass it around.
    1 bottle of beer on the wall.

    1 bottle of beer on the wall,
    1 bottle of beer.
    Take one down, pass it around.
    No more bottles of beer on the wall.

Use the YAMLScript REPL:

    $ yamlscript
    Welcome to YAMLScript [perl]

    user=> nums =: (1 .. 3)
    user/nums
    user=> nums
    (1 2 3)
    user=> map(inc nums)
    (2 3 4)
    user=> <CTL-D>         # to exit
    $

STATUS

This is ALPHA software. Expect things to change.

DESCRIPTION

YAMLScript is a programming language that uses YAML as a base syntax.

See https://yamlscript.org for more info.

Proper docs coming soon.

SEE ALSO

AUTHORS

COPYRIGHT AND LICENSE

Copyright 2022-2023 by Ingy döt Net

This is free software, licensed under:

The MIT (X11) License