## no critic: InputOutput::RequireBriefOpen

our $DATE = '2020-01-03'; # DATE
our $DIST = 'App-RegexpPatternUtils'; # DIST
our $VERSION = '0.004'; # VERSION

use 5.010001;
use strict;
use warnings;
use Log::ger;

use App::RegexpPatternUtils;
use AppBase::Grep;
use Perinci::CmdLine::Any;
use Perinci::Sub::Util qw(gen_modified_sub);
use Regexp::Pattern;

our %SPEC;

    output_name => 'rpgrep',
    base_name   => 'AppBase::Grep::grep',
    summary     => 'Print lines matching a Regexp::Pattern pattern',
    description => <<'_',

    remove_args => [
    add_args    => {
        files => {
            'x.name.is_plural' => 1,
            'x.name.singular' => 'file',
            schema => ['array*', of=>'filename*'],
            pos => 1,
            greedy => 1,
        # XXX recursive (-r)
    output_code => sub {
        my %args = @_;
        my ($fh, $file);

        my @files = @{ delete($args{files}) // [] };
        my %gen_args = %{ delete($args{gen_args}) // {} };
        $gen_args{-anchor} = 1 if delete $args{anchor};
        $args{pattern} = re($args{pattern}, \%gen_args);

        # XXX remove code duplication with App::abgrep

        my $show_label = 0;
        if (!@files) {
            $fh = \*STDIN;
        } elsif (@files > 1) {
            $show_label = 1;

        $args{_source} = sub {
                if (!defined $fh) {
                    return unless @files;
                    $file = shift @files;
                    log_trace "Opening $file ...";
                    open $fh, "<", $file or do {
                        warn "rpgrep: Can't open '$file': $!, skipped\n";
                        undef $fh;
                    redo READ_LINE;

                my $line = <$fh>;
                if (defined $line) {
                    return ($line, $show_label ? $file : undef, 'chomp');
                } else {
                    undef $fh;
                    redo READ_LINE;


my $cli = Perinci::CmdLine::Any->new(
    url => '/main/rpgrep',
    read_config => 0,
    read_env => 0,
$cli->{common_opts}{version}{getopt} = 'version|V';


# ABSTRACT: Print lines matching a Regexp::Pattern pattern
# PODNAME: rpgrep



=encoding UTF-8

=head1 NAME

rpgrep - Print lines matching a Regexp::Pattern pattern

=head1 VERSION

This document describes version 0.004 of rpgrep (from Perl distribution App-RegexpPatternUtils), released on 2020-01-03.



 % rpgrep [options] <pattern> [file] ...


=head1 OPTIONS

C<*> marks required options.

=head2 Main options


=item B<--anchor>

Generate an anchored version of the pattern.

=item B<--file>=I<s@>

Can be specified multiple times.

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

See C<--file>.

=item B<--gen-arg>=I<s>%, B<-A>

Supply generator arguments.

If pattern is a dynamic pattern (generated on-demand) and the generator requires
some arguments, you can supply them here.

Each value is a name-value pair, use I<key=value> syntax. Can be specified multiple times.

=item B<--gen-args-json>=I<s>

Supply generator arguments (JSON-encoded).

See C<--gen-arg>.

=item B<--pattern>=I<s>*

Name of pattern, with module prefix but without the 'Regexp::Pattern'.


=head2 General output control options


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

Valid values:


=item B<--count>, B<-c>

Supress normal output, return a count of matching lines.

=item B<--quiet>, B<--silent>, B<-q>


=head2 Matching control options


=item B<--all>

Require all patterns to match, instead of just one.

=item B<--ignore-case>, B<-i>

=item B<--invert-match>, B<-v>

Invert the sense of matching.


=head2 Output line prefix control options


=item B<--line-number>, B<-n>


=head2 Output options


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

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

Default value:


=item B<--json>

Set output format to json.

=item B<--naked-res>

When outputing as JSON, strip result envelope.

Default value:


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


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
`--naked-res` so you just get:



=head2 Other options


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

Display help message and exit.

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

Display program's version and exit.



This script has shell tab completion capability with support for several

=head2 bash

To activate bash completion for this script, put:

 complete -C rpgrep rpgrep

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 rpgrep 'p/*/`rpgrep`/'

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.


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

=head1 SOURCE

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

=head1 BUGS

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

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

=head1 AUTHOR

perlancar <perlancar@cpan.org>


This software is copyright (c) 2020, 2018, 2016 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.