NAME

Sort::Sub::by_perl_op - Sort by Perl operator

VERSION

This document describes version 0.121 of Sort::Sub::by_perl_op (from Perl distribution Sort-Sub), released on 2024-07-17.

SYNOPSIS

Generate sorter (accessed as variable) via Sort::Sub import:

 use Sort::Sub '$by_perl_op'; # use '$by_perl_op<i>' for case-insensitive sorting, '$by_perl_op<r>' for reverse sorting
 my @sorted = sort $by_perl_op ('item', ...);

Generate sorter (accessed as subroutine):

 use Sort::Sub 'by_perl_op<ir>';
 my @sorted = sort {by_perl_op} ('item', ...);

Generate directly without Sort::Sub:

 use Sort::Sub::by_perl_op;
 my $sorter = Sort::Sub::by_perl_op::gen_sorter(
     ci => 1,      # default 0, set 1 to sort case-insensitively
     reverse => 1, # default 0, set 1 to sort in reverse order
 );
 my @sorted = sort $sorter ('item', ...);

Use in shell/CLI with sortsub (from App::sortsub):

 % some-cmd | sortsub by_perl_op
 % some-cmd | sortsub by_perl_op --ignore-case -r

DESCRIPTION

This:

 use Sort::Sub '$by_perl_op', {op=>'<=>'};
 my @sorted = sort $by_perl_op @data;

is equivalent to:

 my @sorted = sort { $a <=> $b } @data;

Case-sensitivity flag "i" is not relevant.

SORT ARGUMENTS

"*" marks required arguments.

op*

str.

HOMEPAGE

Please visit the project's homepage at <https://metacpan.org/release/Sort-Sub>.

SOURCE

Source repository is at <https://github.com/perlancar/perl-Sort-Sub>.

AUTHOR

perlancar <perlancar@cpan.org>

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 Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, 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.

COPYRIGHT AND LICENSE

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

BUGS

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

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.