#!/usr/bin/perl -CA
-use 5.018;
+use 5.014;
use warnings;
use utf8;
use List::Util qw( min max sum );
use open qw( :std :utf8 );
-use experimental qw( lexical_subs );
our $VERSION = '1.06';
'hidemax=i',
'minval=f',
'maxval=f',
- 'limit|L=s' => sub {
+ 'limit|L:s' => sub {
my ($optname, $optval) = @_;
$optval ||= 0;
($opt{hidemin}, $opt{hidemax}) =
$opt{'graph-format'} = substr $_[1], 0, 1;
},
'spark:s' => sub {
- $opt{spark} = [split //, $_[1] || '▁▂▃▄▅▆▇█'];
+ $opt{spark} = [split //, $_[1] || ' ▁▂▃▄▅▆▇█'];
},
'palette=s' => sub {
$opt{palette} = {
},
) or exit 64; # EX_USAGE
-$opt{width} ||= $ENV{COLUMNS} || 80;
+$opt{width} ||= $ENV{COLUMNS} || qx(tput cols) || 80 unless $opt{spark};
$opt{color} //= -t *STDOUT; # enable on tty
$opt{'graph-format'} //= '-';
$opt{trim} *= $opt{width} / 100 if $opt{trimpct};
$opt{'signal-stat'} //= exists $SIG{INFO} ? 'INFO' : 'QUIT';
$opt{markers} //= '=avg >31.73v <68.27v +50v |0';
$opt{palette} //= $opt{color} && [31, 90, 32];
+$opt{input} = @ARGV && $ARGV[0] =~ m/\A[-0-9]/ ? \@ARGV : undef;
my (@lines, @values, @order);
}
my $valmatch = qr/$opt{anchor} ( \h* -? [0-9]* \.? [0-9]+ (?: e[+-]?[0-9]+ )? |)/x;
-while (readline) {
+while (defined ($_ = $opt{input} ? shift @{ $opt{input} } : readline)) {
s/\r?\n\z//;
s/^\h*// unless $opt{unmodified};
push @values, s/$valmatch/\n/ && $1;
and $. % $opt{interval} == 0;
}
+if ($opt{'zero-missing'}) {
+ push @values, (0) x 10;
+}
+
$SIG{INT} = 'DEFAULT';
sub color {
$nr >= $opt{hidemax} and last if defined $opt{hidemax};
my $val = $values[$nr];
my $rel = length $val && ($val - $minval) / ($maxval - $minval);
+ my $color = !length $val || !$opt{palette} ? undef :
+ $val == $order[0] ? $opt{palette}->[-1] : # max
+ $val == $order[-1] ? $opt{palette}->[0] : # min
+ $opt{palette}->[ $rel * ($#{$opt{palette}} - 1) + 1 ];
if ($opt{spark}) {
- print color($opt{palette}->[ $rel * $#{$opt{palette}} ]) if $opt{palette};
- print $opt{spark}->[ $rel * $#{$opt{spark}} ];
+ say '' if $opt{width} and $nr and $nr % $opt{width} == 0;
+ print color($color), $opt{spark}->[
+ !$val ? 0 : # blank
+ $val == $order[0] ? -1 : # max
+ $val == $order[-1] ? 1 : # min
+ $#{$opt{spark}} < 3 ? 1 :
+ $rel * ($#{$opt{spark}} - 3) + 2.5
+ ];
next;
}
if (length $val) {
- my $color = !$opt{palette} ? undef :
- $val == $order[0] ? $opt{palette}->[-1] : # max
- $val == $order[-1] ? $opt{palette}->[0] : # min
- $opt{palette}->[ $rel * ($#{$opt{palette}} - 1) + 1 ];
$val = $opt{units} ? sival($val) : sprintf "%*s", $lenval, $val;
color($color) for $val;
}
if ($opt{hidemin} or $opt{hidemax}) {
$opt{hidemin} ||= 1;
$opt{hidemax} ||= @lines;
- printf '%s of ', sum(@values[$opt{hidemin} - 1 .. $opt{hidemax} - 1]) // 0;
+ printf '%s of ', sum(grep {length} @values[$opt{hidemin} - 1 .. $opt{hidemax} - 1]) // 0;
}
if (@order) {
my $total = sum @order;
- printf '%s total', color(1) . $total . color(0);
- printf ' in %d values', scalar @values;
+ printf '%s total', color(1) . sprintf('%.8g', $total) . color(0);
+ printf ' in %d values', scalar @order;
+ printf ' over %d lines', scalar @lines if @order != @lines;
printf(' (%s min, %s avg, %s max)',
color(31) . $order[-1] . color(0),
color(36) . (sprintf '%*.*f', 0, 2, $total / @order) . color(0),
=head1 SYNOPSIS
-B<barcat> [<options>] [<input>]
+B<barcat> [<options>] [<file>... | <numbers>]
=head1 DESCRIPTION
-Visualizes relative sizes of values read from input (file(s) or STDIN).
+Visualizes relative sizes of values read from input
+(parameters, file(s) or STDIN).
Contents are concatenated similar to I<cat>,
but numbers are reformatted and a bar graph is appended to each line.
Prepend a dash (i.e. make negative) to enforce padding
regardless of encountered contents.
-=item -L, --limit=(<count>|<start>-[<end>])
+=item -L, --limit[=(<count> | <start>-[<end>])]
Stop output after a number of lines.
All input is still counted and analyzed for statistics,
Commonly used after counting, for example users on the current server:
- users | sed 's/ /\n/g' | sort | uniq -c | barcat
+ users | tr ' ' '\n' | sort | uniq -c | barcat
Letter frequencies in text files:
-Gd 'node=SEARCHRESULTS&q=EXR.D.USD.EUR.SP00.A&exportType=csv' |
grep '^[12]' | barcat -f',\K' --value-length=7
-Total population history from the World Bank dataset (XML):
-External datasets, like total population in XML from the World Bank:
+Total population history in XML from the World Bank:
curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL |
xmllint --xpath '//*[local-name()="date" or local-name()="value"]' - |