use warnings;
use List::Util qw( max sum );
-use Getopt::Long;
+our $VERSION = '1.00';
+
+use Getopt::Long '2.33';
GetOptions(\my %opt,
'width|w=i',
) or exit 64; # EX_USAGE
$opt{width} ||= $ENV{COLUMNS} || 80;
-my @lines = readline;
+my @lines = readline or exit;
chomp for @lines;
my @values = map { s/^\h*([0-9]*)// and $1 } @lines;
my @order = sort { $b <=> $a } @values;
print $barmark[$_] // '-' for 1 .. $val * $size;
say '';
}
+
+__END__
+
+=head1 NAME
+
+graph - append bar chart to input numbers
+
+=head1 SYNOPSIS
+
+B<graph> [<options>] [<input>]
+
+cat ... | uniq -c | graph
+
+=head1 DESCRIPTION
+
+Each line starting with a number is given a bar to visualise relative sizes.
+
+=head1 OPTIONS
+
+=over
+
+=item -w, --width=<columns>
+
+Override the maximum number of columns to use.
+Appended graphics will extend to fill up the entire screen.
+
+=back
+
+=head1 AUTHOR
+
+Mischa POSLAWSKY <perl@shiar.org>
+
+=head1 LICENSE
+
+GPL3+.