use utf8;
use List::Util qw( min max sum );
use open qw( :std :utf8 );
+use re '/msx';
-our $VERSION = '1.06';
+our $VERSION = '1.07';
use Getopt::Long '2.33', qw( :config gnu_getopt );
my %opt;
'field|f=s' => sub {
eval {
local $_ = $_[1];
- $opt{anchor} = /^[0-9]+$/ ? qr/(?:\S*\h+){$_}\K/ : qr/$_/;
- } or die $@ =~ s/(?: at .+)?$/ for option $_[0]/r;
+ $opt{anchor} = /\A[0-9]+\z/ ? qr/(?:\S*\h+){$_}\K/ : qr/$_/;
+ } or die $@ =~ s/(?:\ at\ \N+)?\Z/ for option $_[0]/r;
},
'human-readable|H!',
'interval|t:i',
'trim|length|l=s' => sub {
my ($optname, $optval) = @_;
$optval =~ s/%$// and $opt{trimpct}++;
- $optval =~ m/^-?[0-9]+$/ or die(
+ $optval =~ m/\A-?[0-9]+\z/ or die(
"Value \"$optval\" invalid for option $optname",
" (number or percentage expected)\n"
);
my ($optname, $optval) = @_;
$optval ||= 0;
($opt{hidemin}, $opt{hidemax}) =
- $optval =~ m/\A (?: ([0-9]+)? - )? ([0-9]+)? \z/x or die(
+ $optval =~ m/\A (?: ([0-9]+)? - )? ([0-9]+)? \z/ or die(
"Value \"$optval\" invalid for option limit",
" (range expected)\n"
);
exit;
},
'usage|h' => sub {
- local $/;
+ local $/ = undef; # slurp
my $pod = readline *DATA;
- $pod =~ s/^=over\K/ 25/m; # indent options list
- $pod =~ s/^=item \N*\n\n\N*\n\K(?:(?:^=over.*?^=back\n)?(?!=)\N*\n)*/\n/msg;
+ $pod =~ s/^=over\K/ 25/; # indent options list
+ $pod =~ s/^=item\ \N*\n\n\N*\n\K (?:(?:^=over.*?^=back\n)?(?!=)\N*\n)*/\n/g;
$pod =~ s/[.,](?=\n)//g; # trailing punctuation
- $pod =~ s/^=item \K(?=--)/____/gm; # align long options
+ $pod =~ s/^=item\ \K(?=--)/____/g; # align long options
# abbreviate <variable> indicators
$pod =~ s/\Q>.../s>/g;
$pod =~ s/<(?:number|count|seconds)>/N/g;
$parser->parse_string_document($pod);
$contents =~ s/\n(?=\n\h)//msg; # strip space between items
- $contents =~ s/^ \K____/ /gm; # nbsp substitute
+ $contents =~ s/^\ \ \K____/ /g; # nbsp substitute
print $contents;
exit;
},
$opt{markers} //= '=avg >31.73v <68.27v +50v |0';
$opt{palette} //= $opt{color} && [31, 90, 32];
$opt{hidemin} = ($opt{hidemin} || 1) - 1;
-$opt{input} = @ARGV && $ARGV[0] =~ m/\A[-0-9]/ ? \@ARGV : undef
+$opt{input} = (@ARGV && $ARGV[0] =~ m/\A[-0-9]/) ? \@ARGV : undef
and undef $opt{interval};
my (@lines, @values, @order);
}
my $valmatch = qr<
- $opt{anchor} ( \h* -? [0-9]* \.? [0-9]+ (?: e[+-]?[0-9]+ )? |)
+ $opt{anchor} ( \h* -? [0-9]* [.]? [0-9]+ (?: e[+-]?[0-9]+ )? |)
>x;
while (defined ($_ = $opt{input} ? shift @{ $opt{input} } : readline)) {
s/\r?\n\z//;
- s/^\h*// unless $opt{unmodified};
- push @values, s/$valmatch/\n/ && $1;
- push @order, $1 if length $1;
- if (defined $opt{trim} and defined $1) {
+ s/\A\h*// unless $opt{unmodified};
+ my $valnum = s/$valmatch/\n/ && $1;
+ push @values, $valnum;
+ push @order, $valnum if length $valnum;
+ if (defined $opt{trim} and defined $valnum) {
my $trimpos = abs $opt{trim};
- $trimpos -= length $1 if $opt{unmodified};
+ $trimpos -= length $valnum if $opt{unmodified};
if ($trimpos <= 1) {
$_ = substr $_, 0, 2;
}
sub sival {
my $unit = int(log(abs $_[0] || 1) / log(10) - 3*($_[0] < 1) + 1e-15);
- my $float = $_[0] !~ /^0*[-0-9]{1,3}$/;
- sprintf('%3.*f%1s',
+ my $float = $_[0] !~ /\A0*[-0-9]{1,3}\z/;
+ return sprintf('%3.*f%1s',
$float && ($unit % 3) == ($unit < 0), # tenths
$_[0] / 1000 ** int($unit/3), # number
$#{$opt{units}} * 1.5 < abs $unit ? "e$unit" : $opt{units}->[$unit/3]
sub show_lines {
state $nr = $opt{hidemin};
-@lines and @lines > $nr or return;
@lines or return;
-@lines > $nr or return unless $opt{hidemin};
+@lines > $nr or return;
@order = sort { $b <=> $a } @order unless tied @order;
my $maxval = $opt{maxval} // (
}
}
-@lines > $nr or return if $opt{hidemin};
-
say(
color(31), sprintf('%*s', $lenval, $minval),
color(90), '-', color(36), '+',
}
say $opt{palette} ? color(0) : '' if $opt{spark};
+ return $nr;
}
sub show_stat {
);
}
say '';
+ return 1;
}
sub show_exit {
In case of additional colors,
the last is used for values equal to the maximum, the first for minima.
If unspecified, these are green and red respectively (I<31 90 32>).
+Multiple intermediate colors will be distributed
+relative to the size of values.
+
+Predefined color schemes are named I<whites> and I<fire>,
+or I<greys> and I<fire256> for 256-color variants.
=item --spark[=<characters>]
echo 'SELECT count(*),schemaname FROM pg_tables GROUP BY 2' |
psql -t | barcat -u
+In PostgreSQL from within the client:
+
+ postgres=> SELECT sin(generate_series(0, 3, .1)) \g |barcat
+
Earthquakes worldwide magnitude 1+ in the last 24 hours:
https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/1.0_day.csv |
- column -tns, | graph -f4 -u -l80%
+ column -tns, | barcat -f4 -u -l80%
External datasets, like movies per year:
( git log --pretty=%ci --since=30day | cut -b-10
seq 0 30 | xargs -i date +%F -d-{}day ) |
- sort | uniq -c | awk '$1--' | graph --spark
+ sort | uniq -c | awk '$1--' | barcat --spark
=head1 AUTHOR