Files
linguist/samples/Perl/Any.pm
Juan Julián Merelo Guervós a9ff59aef5 Additions to the Perl family of languages (#4066)
* Mainly fixing problems with Perl heuristics

And also adding a little bit of text to the README file to help with local use and test.

* Adds new sample

* Adds a couple of samples more, not represented before

* Moves installation intructions to CONTRIBUTING.md

Refs #2309 and also changes github.com to an uniform capitalization.

* Correcting error. Great job, CI

* Moving another file

* Adds samples and new checks for perl/perl6

* Stupid mistake

* Changing regex for perl5 vs perl6

Initial suggestion by @pchaigno, slightly changed to eliminate false positives such as "classes" or "modules" at the beginning of a line in the =pod

BTW, it would be interesting to just eliminate these areas for language detection.

* Eliminates Rexfile from Perl6

And adds .pod6

* Followup to #2709

I just found I had this sitting here, so I might as well follow
instructions to fix it.

* Adds example for pod6

* Eliminates .pod because it's its own language

* Removes bad directory

* Reverting changes that were already there

* Restored CONTRIBUTING.md from head

I see installation of cmake is advised in README.md

* Eliminates `.pod6`

To leave way for #3366 or succeeding PRs.

* Removed by request, since we're no longer adding this extension

* Sorting by alphabetical order filenames

* Moved from sample to test fixtures
2018-04-11 17:32:26 +02:00

101 lines
2.0 KiB
Perl

use strict; #-*-cperl-*-
use warnings;
use lib qw( ../../../../lib );
=encoding utf8
=head1 NAME
Algorithm::Evolutionary::Fitness::Any - Façade for any function so that it can be used as fitness
=head1 SYNOPSIS
use Algorithm::Evolutionary::Utils qw( string_decode )
sub squares {
my $chrom = shift;
my @values = string_decode( $chrom, 10, -1, 1 );
return $values[0] * $values[1];
}
my $any_eval = new Algorithm::Evolutionary::Fitness::Any \&squares;
=head1 DESCRIPTION
Turns any subroutine or closure into a fitness function. Useful mainly
if you want results cached; it's not really needed otherwise.
=head1 METHODS
=cut
package Algorithm::Evolutionary::Fitness::Any;
use Carp;
use base 'Algorithm::Evolutionary::Fitness::Base';
our $VERSION = '3.2';
=head2 new( $function )
Assigns default variables
=cut
sub new {
my $class = shift;
my $self = { _function => shift || croak "No functiona rray" };
bless $self, $class;
$self->initialize();
return $self;
}
=head2 apply( $individual )
Applies the instantiated problem to a chromosome. It is actually a
wrapper around C<_apply>.
=cut
sub apply {
my $self = shift;
my $individual = shift || croak "Nobody here!!!";
$self->{'_counter'}++;
return $self->_apply( $individual );
}
=head2 _apply( $individual )
This is the one that really does the stuff. It applies the defined
function to each individual. Itis cached for efficiency.
=cut
sub _apply {
my $self = shift;
my $individual = shift || croak "Nobody here!";
my $chrom = $individual->Chrom();
my $cache = $self->{'_cache'};
if ( $cache->{$chrom} ) {
return $cache->{$chrom};
}
my $result = $self->{'_function'}->($chrom);
if ( (scalar $chrom ) eq $chrom ) {
$cache->{$chrom} = $result;
}
return $result;
}
=head1 Copyright
This file is released under the GPL. See the LICENSE file included in this distribution,
or go to http://www.fsf.org/licenses/gpl.txt
=cut
"What???";