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PERLANCAR / Regexp-Pattern-Instagram-0.001 / lib / Regexp / Pattern / Instagram.pm 

            

              
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package Regexp::Pattern::Instagram;
use strict;
our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2025-03-27'; # DATE
our $DIST = 'Regexp-Pattern-Instagram'; # DIST
our $VERSION = '0.001'; # VERSION
our %RE = (
    username => {
        summary => 'Instagram username',
        pat => qr/(?:[A-Za-z0-9_]{1,30}|[A-Za-z0-9_](?:[A-Za-z0-9_]|\.(?!\.)){1,28}[A-Za-z0-9_])/,
        description => <<'MARKDOWN',
Maximum 30 characters. Can contain letters, numbers, underscores, and dots. Dots
cannot appear at the beginning or end, and cannot appear consecutively.
MARKDOWN
        examples => [
            {str=>'perlancar', anchor=>1, matches=>1},
            {str=>'perl ancar', anchor=>1, matches=>0, summary=>"Contains invalid character (space)"},
            {str=>'perl.ancar', anchor=>1, matches=>1},
            {str=>'per.lan.car', anchor=>1, matches=>1},
            {str=>'__perlancar__', anchor=>1, matches=>1},
            {str=>'a234567890b234567890c234567890', anchor=>1, matches=>1},
            {str=>'a234567890b234567890c234567890_', anchor=>1, matches=>0, summary=>"Too long"},
            {str=>'.perlancar', anchor=>1, matches=>0, summary=>"Dot cannot appear at the beginning"},
            {str=>'perlancar.', anchor=>1, matches=>0, summary=>"Dot cannot appear at the end"},
            {str=>'perl..ancar', anchor=>1, matches=>0, summary=>"Dot cannot appear consecutively"},
        ],
    },
);
1;
# ABSTRACT: Regexp patterns related to Instagram
__END__
=pod
=encoding UTF-8
=head1 NAME
Regexp::Pattern::Instagram - Regexp patterns related to Instagram
=head1 VERSION
This document describes version 0.001 of Regexp::Pattern::Instagram (from Perl distribution Regexp-Pattern-Instagram), released on 2025-03-27.
=head1 SYNOPSIS
Using with L<Regexp::Pattern>:
  
 use Regexp::Pattern; # exports re()
 my $re = re("Instagram::username");
  
 # see Regexp::Pattern for more details on how to use with Regexp::Pattern
  
=head1 DESCRIPTION
L<Regexp::Pattern> is a convention for organizing reusable regex patterns.
=head1 REGEXP PATTERNS
=over
=item * username
Instagram username.
Maximum 30 characters. Can contain letters, numbers, underscores, and dots. Dots
cannot appear at the beginning or end, and cannot appear consecutively.
Examples:
Example #1.
 "perlancar" =~ re("Instagram::username");  # matches
Contains invalid character (space).
 "perl ancar" =~ re("Instagram::username");  # DOESN'T MATCH
Example #3.
 "perl.ancar" =~ re("Instagram::username");  # matches
Example #4.
 "per.lan.car" =~ re("Instagram::username");  # matches
Example #5.
 "__perlancar__" =~ re("Instagram::username");  # matches
Example #6.
 "a234567890b234567890c234567890" =~ re("Instagram::username");  # matches
Too long.
 "a234567890b234567890c234567890_" =~ re("Instagram::username");  # DOESN'T MATCH
Dot cannot appear at the beginning.
 ".perlancar" =~ re("Instagram::username");  # DOESN'T MATCH
Dot cannot appear at the end.
 "perlancar." =~ re("Instagram::username");  # DOESN'T MATCH
Dot cannot appear consecutively.
 "perl..ancar" =~ re("Instagram::username");  # DOESN'T MATCH
=back
=head1 HOMEPAGE
Please visit the project's homepage at L<https://metacpan.org/release/Regexp-Pattern-Instagram>.
=head1 SOURCE
Source repository is at L<https://github.com/perlancar/perl-Regexp-Pattern-Instagram>.
=head1 SEE ALSO
L<Regexp::Pattern>
Some utilities related to Regexp::Pattern: L<App::RegexpPatternUtils>, L<rpgrep> from L<App::rpgrep>.
=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) 2025 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=Regexp-Pattern-Instagram>
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