ponysay/ponysaylinklist.pl

35 lines
599 B
Perl
Executable file

#!/usr/bin/perl
# ponysaylist
# Prints a list of ponies in columns
#
# Licensed under WTFPL
# See COPYING for details
# Author: Mattias Andrée, maandree@kth.se
use strict;
use warnings;
use utf8;
use List::MoreUtils qw(natatime);
my %hash;
my $it = natatime 2, @ARGV;
while (my ($source, $target) = &$it) {
unless ($source eq $target) {
push @{$hash{$target}}, $source;
}
}
$it = natatime 2, @ARGV;
while (my ($source, $target) = &$it) {
if ($source eq $target) {
my @list = @{$hash{$source} // []};
print $source;
print ' (', join(' ', @list), ')' if @list;
print "\n";
}
}