our $VERSION = '1.02';
use Getopt::Long '2.33', qw( :config gnu_getopt );
-sub podexit { require Pod::Usage; Pod::Usage::pod2usage(-exitval => 0, @_) }
+sub podexit {
+ require Pod::Usage;
+ Pod::Usage::pod2usage(-exitval => 0, -perldocopt => '-oman', @_);
+}
GetOptions(\my %opt,
'color|c!',
'follow|f:i',
'trim|length|l=i',
'markers|m=s',
+ 'unmodified|u!',
'width|w=i',
'usage|h' => sub { podexit() },
'help' => sub { podexit(-verbose => 2) },
my (@lines, @values);
while (readline) {
chomp;
- push @values, s/^\h* ( -? [0-9]* (?:\.[0-9]+)? )//x && $1;
+ s/^\h*// unless $opt{unmodified};
+ push @values, s/^ ( \h* -? [0-9]* \.? [0-9]+ |)//x && $1;
if (defined $opt{trim}) {
my $trimpos = abs $opt{trim};
if ($trimpos <= 1) {
sub show_lines {
+state $nr = 0;
+
my @order = sort { $b <=> $a } grep { length } @values;
my $maxval = $order[0];
my $minval = min $order[-1], 0;
$barmark[ orderpos($#order / 2) ] = '+'; # mean
$barmark[ -$minval * $size ] = '|' if $minval < 0; # zero
defined and $opt{color} and $_ = "\e[36m$_\e[0m" for @barmark;
+
+ state $lastmax = $maxval;
+ if ($maxval > $lastmax) {
+ print ' ' x ($lenval + $len);
+ printf "\e[90m" if $opt{color};
+ printf '%-*s',
+ ($lastmax - $minval) * $size + .5,
+ '-' x (($values[$nr - 1] - $minval) * $size);
+ print "\e[92m" if $opt{color};
+ say '+' x (($maxval - $lastmax - $minval) * $size + .5);
+ print "\e[0m" if $opt{color};
+ $lastmax = $maxval;
+ }
}
-state $nr = 0;
while ($nr <= $#lines) {
my $val = $values[$nr];
if (length $val) {
=back
+=item -u, --unmodified
+
+Do not strip leading whitespace.
+Keep original value alignment, which may be significant in some programs.
+
=item -w, --width=<columns>
Override the maximum number of columns to use.
Any kind of database query with leading counts:
echo 'SELECT count(*),schemaname FROM pg_tables GROUP BY 2' |
- psql -t | graph
+ psql -t | graph -u
Git statistics, such commit count by year: