Sort::Sub::by_perl_code - Sort by Perl code
This document describes version 0.120 of Sort::Sub::by_perl_code (from Perl distribution Sort-Sub), released on 2020-05-25.
Generate sorter (accessed as variable) via Sort::Sub import:
use Sort::Sub '$by_perl_code'; # use '$by_perl_code<i>' for case-insensitive sorting, '$by_perl_code<r>' for reverse sorting my @sorted = sort $by_perl_code ('item', ...);
Generate sorter (accessed as subroutine):
use Sort::Sub 'by_perl_code<ir>'; my @sorted = sort {by_perl_code} ('item', ...);
Generate directly without Sort::Sub:
use Sort::Sub::by_perl_code; my $sorter = Sort::Sub::by_perl_code::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 $sorter ('item', ...);
Use in shell/CLI with sortsub (from App::sortsub):
% some-cmd | sortsub by_perl_code % some-cmd | sortsub by_perl_code --ignore-case -r
This:
use Sort::Sub '$by_perl_code', {code=>'length $_[0] <=> length $_[1]'}; my @sorted = sort $by_perl_code @data;
is equivalent to:
my @sorted = sort { length $a <=> length $b } @data;
Case-sensitivity flag i is not relevant.
i
* marks required arguments.
*
str.
Either compiled code or string code excluding the "sub {" and "}" enclosure.
Code should accept two arguments (the operands to be compared) and is expected to return -1, 0, -1 like the builtin cmp operator.
cmp
Please visit the project's homepage at https://metacpan.org/release/Sort-Sub.
Source repository is at https://github.com/perlancar/perl-Sort-Sub.
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.
Sort::Sub
perlancar <perlancar@cpan.org>
This software is copyright (c) 2020, 2019, 2018, 2016, 2015 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.
To install Sort::Sub, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Sort::Sub
CPAN shell
perl -MCPAN -e shell install Sort::Sub
For more information on module installation, please visit the detailed CPAN module installation guide.