#!perl

# Note: This script is a CLI for Riap function /App/genusername/genusername
# and generated automatically using Perinci::CmdLine::Gen version 0.502

use 5.010001;
use strict;
use warnings;

use Perinci::CmdLine::Any;

our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2024-01-16'; # DATE
our $DIST = 'App-genusername'; # DIST
our $VERSION = '0.001'; # VERSION

my $cmdline = Perinci::CmdLine::Any->new(
    url => "/App/genusername/genusername",
    program_name => "genusername",
    read_config => 0,
    read_env => 0,
);

$cmdline->run;

# ABSTRACT: Generate random username
# PODNAME: genusername

__END__

=pod

=encoding UTF-8

=head1 NAME

genusername - Generate random username

=head1 VERSION

This document describes version 0.001 of genusername (from Perl distribution App-genusername), released on 2024-01-16.

=head1 SYNOPSIS

B<genusername> B<L<--help|/"--help, -h, -?">> (or B<L<-h|/"--help, -h, -?">>, B<L<-?|/"--help, -h, -?">>)

B<genusername> B<L<--version|/"--version, -v">> (or B<L<-v|/"--version, -v">>)

B<genusername> [B<L<--action|/"--list-patterns">>=I<str>|B<L<--list-patterns|/"--list-patterns">>] [B<L<--case|/"--case=s">>=I<str>|B<L<-L|/"--case=s">>|B<L<-U|/"--case=s">>] [B<L<--format|/"--format=s">>=I<name>|B<L<--json|/"--json">>] [B<L<--(no)naked-res|/"--naked-res">>] [B<L<--page-result|/"--page-result">>[=I<program>]|B<L<--view-result|/"--view-result">>[=I<program>]] [(B<L<--pattern|/"--patterns-json=s">>=I<str>)+|B<L<--patterns-json|/"--patterns-json=s">>=I<json>|(B<L<-p|/"--patterns-json=s">>=I<str>)+] -- [I<L<num|/"--num=s, -n">>]

=head1 DESCRIPTION

This is a thin wrapper for L<genpw>.

=head1 OPTIONS

C<*> marks required options.

=head2 Main options

=over

=item B<--action>=I<s>

Default value:

 "gen"

Valid values:

 ["gen","list-patterns"]

=item B<--case>=I<s>

Force casing.

Default value:

 "default"

Valid values:

 ["default","random","lower","upper","title"]

C<default> means to not change case. C<random> changes casing some letters
randomly to lower-/uppercase. C<lower> forces lower case. C<upper> forces
UPPER CASE. C<title> forces Title case.


=item B<--list-patterns>

Shortcut for --action=list-patterns.

See C<--action>.

=item B<--num>=I<s>, B<-n>

Default value:

 1

Can also be specified as the 1st command-line argument.

=item B<--pattern>=I<s@>, B<-p>

Pattern(s) to use.

CONVERSION (C<%P>). A pattern is string that is roughly similar to a printf
pattern:

 %P

where C<P> is certain letter signifying a conversion. This will be replaced with
some other string according to the conversion. An example is the C<%h> conversion
which will be replaced with hexdigit.

LENGTH (C<%NP>). A non-negative integer (C<N>) can be specified before the
conversion to signify desired length, for example, C<%4w> will return a random
word of length 4.

MINIMUM AND MAXIMUM LENGTH (C<%M$NP>). If two non-negative integers separated by
C<$> is specified before the conversion, this specify desired minimum and maximum
length. For example, C<%4$10h> will be replaced with between 4 and 10 hexdigits.

ARGUMENT AND FILTERS (C<%(arg)P>, C<%(arg)(filter1)(...)P>). Finally, an argument
followed by zero or more filters can be specified (before the lengths) and
before the conversion. For example, C<%(wordlist:ID::KBBI)w> will be replaced by
a random word from the wordlist L<WordList::ID::KBBI>. Another example,
C<%()(Str::uc)4$10h> will be replaced by between 4-10 uppercase hexdigits, and
C<%(arraydata:Sample::DeNiro)(Str::underscore_non_latin_alphanums)(Str::lc)(Str::ucfirst)w>
will be replaced with a random movie title of Robert De Niro, where symbols are
replaced with underscore then the string will be converted into lowercase and
the first character uppercased, e.g. C<Dear_america_letters_home_from_vietnam>.

Anything else will be left as-is.

Available conversions:

 %l   Random Latin letter (A-Z, a-z)
 %d   Random digit (0-9)
 %h   Random hexdigit (0-9a-f in lowercase [default] or 0-9A-F in uppercase).
      Known arguments:
      - "u" (to use the uppercase instead of the default lowercase digits)
 %a   Random letter/digit (Alphanum) (A-Z, a-z, 0-9; combination of %l and %d)
 %s   Random ASCII symbol, e.g. "-" (dash), "_" (underscore), etc.
 %x   Random letter/digit/ASCII symbol (combination of %a and %s)
 %m   Base64 character (A-Z, a-z, 0-9, +, /)
 %b   Base58 character (A-Z, a-z, 0-9 minus IOl0)
 %B   Base56 character (A-Z, a-z, 0-9 minus IOol01)
 %%   A literal percent sign
 %w   Random word. Known arguments:
      - "stdin:" (for getting the words from stdin, the default)
      - "wordlist:NAME" (for getting the words from a L<WordList> module)
      - "arraydata:NAME" (for getting the words from an L<ArrayData> module, the
        Role::TinyCommons::Collection::PickItems::RandomPos will be applied).

Filters are modules in the C<Data::Sah::Filter::perl::> namespace.


Can be specified multiple times.

=item B<--patterns-json>=I<s>

Pattern(s) to use (JSON-encoded).

See C<--pattern>.

=item B<-L>

Shortcut for --case=lower.

See C<--case>.

=item B<-U>

Shortcut for --case=upper.

See C<--case>.

=back

=head2 Output options

=over

=item B<--format>=I<s>

Choose output format, e.g. json, text.

Default value:

 undef

Output can be displayed in multiple formats, and a suitable default format is
chosen depending on the application and/or whether output destination is
interactive terminal (i.e. whether output is piped). This option specifically
chooses an output format.


=item B<--json>

Set output format to json.

=item B<--naked-res>

When outputing as JSON, strip result envelope.

Default value:

 0

By default, when outputing as JSON, the full enveloped result is returned, e.g.:

 [200,"OK",[1,2,3],{"func.extra"=>4}]

The reason is so you can get the status (1st element), status message (2nd
element) as well as result metadata/extra result (4th element) instead of just
the result (3rd element). However, sometimes you want just the result, e.g. when
you want to pipe the result for more post-processing. In this case you can use
C<--naked-res> so you just get:

 [1,2,3]


=item B<--page-result>

Filter output through a pager.

This option will pipe the output to a specified pager program. If pager program
is not specified, a suitable default e.g. C<less> is chosen.


=item B<--view-result>

View output using a viewer.

This option will first save the output to a temporary file, then open a viewer
program to view the temporary file. If a viewer program is not chosen, a
suitable default, e.g. the browser, is chosen.


=back

=head2 Other options

=over

=item B<--help>, B<-h>, B<-?>

Display help message and exit.

=item B<--version>, B<-v>

Display program's version and exit.

=back

=head1 COMPLETION

This script has shell tab completion capability with support for several
shells.

=head2 bash

To activate bash completion for this script, put:

 complete -C genusername genusername

in your bash startup (e.g. F<~/.bashrc>). Your next shell session will then
recognize tab completion for the command. Or, you can also directly execute the
line above in your shell to activate immediately.

It is recommended, however, that you install modules using L<cpanm-shcompgen>
which can activate shell completion for scripts immediately.

=head2 tcsh

To activate tcsh completion for this script, put:

 complete genusername 'p/*/`genusername`/'

in your tcsh startup (e.g. F<~/.tcshrc>). Your next shell session will then
recognize tab completion for the command. Or, you can also directly execute the
line above in your shell to activate immediately.

It is also recommended to install L<shcompgen> (see above).

=head2 other shells

For fish and zsh, install L<shcompgen> as described above.

=head1 HOMEPAGE

Please visit the project's homepage at L<https://metacpan.org/release/App-genusername>.

=head1 SOURCE

Source repository is at L<https://github.com/perlancar/perl-App-genusername>.

=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 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=App-genusername>

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
