NAME
   Regexp::Pattern::Palindrome - Regexp patterns related to palindrome

VERSION
   This document describes version 0.002 of Regexp::Pattern::Palindrome
   (from Perl distribution Regexp-Pattern-Palindrome), released on
   2020-02-11.

SYNOPSIS
    use Regexp::Pattern; # exports re()
    my $re = re("Palindrome::gen_palindrome_alphanum");

DESCRIPTION
   Regexp::Pattern is a convention for organizing reusable regex patterns.

PATTERNS
   *   gen_palindrome_alphanum

       Generate regex to match palindrome alphanumeric word of certain
       minimum length.

       This is a dynamic pattern which will be generated on-demand.

       The following arguments are available to customize the generated
       pattern:

       *   min_len

       Examples:

        "a" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>1});  # matches

        "a" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>3});  # doesn't match

        "aaa" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>3});  # matches

        "aba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>3});  # matches

        "abba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>3});  # matches

        "abcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>3});  # matches

        "abc" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>3});  # doesn't match

        "a" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>5});  # doesn't match

        "abcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>5});  # matches

        "abccba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>5});  # matches

        "abcde" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>5});  # doesn't match

        "a" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>7});  # doesn't match

        "abcdcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>7});  # matches

        "abcddcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>7});  # matches

        "abcdefg" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>7});  # doesn't match

        "a" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>9});  # doesn't match

        "abcdedcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>9});  # matches

        "abcdeedcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>9});  # matches

        "abcdefghi" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>9});  # doesn't match

        "a" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>11});  # doesn't match

        "abcdefedcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>11});  # matches

        "abcdeffedcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>11});  # matches

        "abcdefghijk" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>11});  # doesn't match

        "a" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>13});  # doesn't match

        "abcdefgfedcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>13});  # matches

        "abcdefggfedcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>13});  # matches

        "abcdefghijklm" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>13});  # doesn't match

        "a" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>15});  # doesn't match

        "abcdefghgfedcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>15});  # matches

        "abcdefghhgfedcba" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>15});  # matches

        "abcdefghijklmno" =~ re("Palindrome::gen_palindrome_alphanum", {min_len=>15});  # doesn't match

   *   palindrome_alphanum

       Palindrome alphanumeric word (single alphanum included).

       Examples:

        "foo" =~ re("Palindrome::palindrome_alphanum");  # doesn't match

        "Aa" =~ re("Palindrome::palindrome_alphanum");  # doesn't match

        "-" =~ re("Palindrome::palindrome_alphanum");  # doesn't match

        "a-a" =~ re("Palindrome::palindrome_alphanum");  # doesn't match

        "a" =~ re("Palindrome::palindrome_alphanum");  # matches

        "aa" =~ re("Palindrome::palindrome_alphanum");  # matches

        "zzz" =~ re("Palindrome::palindrome_alphanum");  # matches

        "kodok" =~ re("Palindrome::palindrome_alphanum");  # matches

       Feb 2nd, 2020 in YYYYMMDD format.

        20200202 =~ re("Palindrome::palindrome_alphanum");  # matches

HOMEPAGE
   Please visit the project's homepage at
   <https://metacpan.org/release/Regexp-Pattern-Palindrome>.

SOURCE
   Source repository is at
   <https://github.com/perlancar/perl-Regexp-Pattern-Palindrome>.

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

   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
   Regexp::Pattern

   Some utilities related to Regexp::Pattern: App::RegexpPatternUtils,
   rpgrep from App::rpgrep.

AUTHOR
   perlancar <[email protected]>

COPYRIGHT AND LICENSE
   This software is copyright (c) 2020 by [email protected].

   This is free software; you can redistribute it and/or modify it under
   the same terms as the Perl 5 programming language system itself.

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