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package ShellCompleter::Util;
use 5.010001;
use strict;
use warnings;
use Exporter qw(import);
our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2024-07-09'; # DATE
our $DIST = 'ShellCompleter-Util'; # DIST
our $VERSION = '0.032'; # VERSION
our @EXPORT_OK = qw(
                    run_shell_completer_for_getopt_long_app
               );
sub _complete {
    my ($comp0, $args) = @_;
    my $comp;
    if(ref($comp0) eq 'HASH') {
        $comp = $comp0->{completion};
    } else {
        $comp = $comp0;
    }
    if (ref($comp) eq 'ARRAY') {
        require Complete::Util;
        return Complete::Util::complete_array_elem(
            array => $comp,
            word  => $args->{word},
        );
    } elsif (ref($comp) eq 'CODE') {
        return $comp->(%$args);
    } else {
        return;
    }
}
sub run_shell_completer_for_getopt_long_app {
    require Getopt::Long::Complete;
    my %f_args = @_;
    unless ($ENV{GETOPT_LONG_DUMP} || $ENV{COMP_LINE} || $ENV{COMMAND_LINE}) {
        die "Please run the script under shell completion\n";
    }
    Getopt::Long::Complete::GetOptionsWithCompletion(
        sub {
            my %c_args = @_;
            my $word = $c_args{word};
            my $type = $c_args{type};
            if ($type eq 'arg') {
                return _complete($f_args{'{arg}'}, \%c_args);
            } elsif ($type eq 'optval') {
                return unless $c_args{ospec};
                return _complete($f_args{ $c_args{ospec} }, \%c_args);
            }
            undef;
        },
        map {$_ => sub{}} grep {$_ ne '{arg}'} keys %f_args,
    );
}
1;
# ABSTRACT: Utility routines for App::ShellCompleter::*
__END__
HideShow 79 lines of Pod
=pod
=encoding UTF-8
=head1 NAME
ShellCompleter::Util - Utility routines for App::ShellCompleter::*
=head1 VERSION
This document describes version 0.032 of ShellCompleter::Util (from Perl distribution ShellCompleter-Util), released on 2024-07-09.
=head1 SYNOPSIS
=head1 DESCRIPTION
B<This module will be replaced by the newer Shell::Completer when it is ready.>
This module provides utility routines for C<App::ShellCompleter::*>
applications.
=head1 FUNCTIONS
=head2 run_shell_completer_for_getopt_long_app(%go_spec)
=head1 HOMEPAGE
Please visit the project's homepage at L<https://metacpan.org/release/ShellCompleter-Util>.
=head1 SOURCE
Source repository is at L<https://github.com/perlancar/perl-ShellCompleter-Util>.
=head1 SEE ALSO
C<App::ShellCompleter::*> modules which use this module, e.g.
L<App::ShellCompleter::mpv>.
L<Getopt::Long::Complete>
=head1 AUTHOR
perlancar <perlancar@cpan.org>
=head1 CONTRIBUTING
To contribute, you can send patches by email/via RT, or send pull requests on
GitHub.
Most of the time, you don't need to build the distribution yourself. You can
simply modify the code, then test via:
 % prove -l
If you want to build the distribution (e.g. to try to install it locally on your
system), you can install L<Dist::Zilla>,
L<Dist::Zilla::PluginBundle::Author::PERLANCAR>,
L<Pod::Weaver::PluginBundle::Author::PERLANCAR>, and sometimes one or two other
Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond
that are considered a bug and can be reported to me.
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2024, 2018, 2016, 2015 by perlancar <perlancar@cpan.org>.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=head1 BUGS
Please report any bugs or feature requests on the bugtracker website L<https://rt.cpan.org/Public/Dist/Display.html?Name=ShellCompleter-Util>
When submitting a bug or request, please include a test-file or a
patch to an existing test-file that illustrates the bug or desired
feature.
=cut