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PackUnpack

An attempt at implementing Perl 5's pack/unpack functionality efficiently in Perl 6, if for no other reason we're going to need it to support "use v5".

Description

Exports 3 subroutines:

  • pack
  • unpack
  • parse-pack-template

pack

Provide functionality of Perl 5's pack statement. Currently supported directives are: a A c C h H i I l L n N q Q s S U v V x Z

unpack

Provide functionality of Perl 5's pack statement. Currently supported directives are: a A c C h H i I l L n N q Q s S U v V x Z

parse-pack-template

Parses a given template into an internal format. If many calls are made to pack/unpack with the same template, efficiency will improve by parsing the template only once and feeding its result to pack/unpack instead of the original template string.

use PackUnpack;

say pack("ccxxcc",65,66,67,68); # "AB\0\0CD";

my @template = parse-pack-template("ccxxcc"); say pack(@template,65,66,67,68); # same

Copying

Copyright (c) 2016 Elizabeth Mattijsen. All rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

Recent changes can be (re)viewed in the public GIT repository at https://github.com/lizmat/PackUnpack

Feel free to clone your own copy: $ git clone https://github.com/lizmat/PackUnpack

Prerequisites

  • perl6 v6.c

Build/Installation

$ zef install PackUnpack

Author

Elizabeth Mattijsen liz@wenzperl.nl