4 use List::Util qw( max );
6 my $width = $ENV{COLUMNS} || 80;
10 my @values = map { s/^\h*([0-9]*)// and $1 } @lines;
11 my $maxval = max @values;
12 my $lenval = 1 + int log($maxval) / log 10; # max string length
13 my $len = 1 + max map { length } @lines; # left padding
14 my $size = ($width - $lenval - $len) / $maxval; # bar multiplication
16 for my $nr (0 .. $#lines) {
17 my $val = $values[$nr];
19 printf "%*s", $lenval, $val;
21 printf '%-*s', $len, $lines[$nr];
22 say '-' x ($val * $size);