NAME
    Perinci::CmdLine::Help - Generate help message for
    Perinci::CmdLine-based app

VERSION
    This document describes version 0.174 of Perinci::CmdLine::Help (from
    Perl distribution Perinci-CmdLine-Help), released on 2021-07-10.

DESCRIPTION
    Currently used by Perinci::CmdLine::Lite and App::riap. Eventually I
    want Perinci::CmdLine to use this also (needs prettier and more
    sophisticated formatting options first though).

FUNCTIONS
  gen_help
    Usage:

     gen_help(%args) -> [$status_code, $reason, $payload, \%result_meta]

    Generate help message for Perinci::CmdLine-based app.

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   common_opts => *hash* (default: {})

    *   ggls_res => *array*

        Full result from gen_getopt_long_spec_from_meta().

        If you already call Perinci::Sub::GetArgs::Argv's
        "gen_getopt_long_spec_from_meta()", you can pass the *full*
        enveloped result here, to avoid calculating twice.

    *   meta* => *hash*

        Function metadata.

    *   meta_is_normalized => *bool*

    *   per_arg_json => *bool*

    *   per_arg_yaml => *bool*

    *   program_name* => *str*

    *   program_summary => *str*

    *   subcommands => *hash*

    Returns an enveloped result (an array).

    First element ($status_code) is an integer containing HTTP-like status
    code (200 means OK, 4xx caller error, 5xx function error). Second
    element ($reason) is a string containing error message, or something
    like "OK" if status is 200. Third element ($payload) is the actual
    result, but usually not present when enveloped result is an error
    response ($status_code is not 2xx). Fourth element (%result_meta) is
    called result metadata and is optional, a hash that contains extra
    information, much like how HTTP response headers provide additional
    metadata.

    Return value: (any)

HOMEPAGE
    Please visit the project's homepage at
    <https://metacpan.org/release/Perinci-CmdLine-Help>.

SOURCE
    Source repository is at
    <https://github.com/perlancar/perl-Perinci-CmdLine-Help>.

BUGS
    Please report any bugs or feature requests on the bugtracker website
    <https://rt.cpan.org/Public/Dist/Display.html?Name=Perinci-CmdLine-Help>

    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.

SEE ALSO
AUTHOR
    perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2021, 2020, 2017, 2016, 2015, 2014 by
    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.