use Getopt::Long '2.33', qw( :config gnu_getopt );
my %opt;
GetOptions(\%opt,
+ 'ascii|a!',
'color|c!',
'C' => sub { $opt{color} = 0 },
'field|f=s' => sub {
'limit|L:s' => sub {
my ($optname, $optval) = @_;
$optval ||= 0;
+ $optval =~ /\A-[0-9]+\z/ and $optval .= '-'; # tail shorthand
($opt{hidemin}, $opt{hidemax}) =
- $optval =~ m/\A (?: ([0-9]+)? - )? ([0-9]+)? \z/ or die(
+ $optval =~ m/\A (?: (-? [0-9]+)? - )? ([0-9]+)? \z/ or die(
"Value \"$optval\" invalid for option limit",
" (range expected)\n"
);
$opt{'graph-format'} = substr $_[1], 0, 1;
},
'spark:s' => sub {
- $opt{spark} = [split //, $_[1] || ' ▁▂▃▄▅▆▇█'];
+ $opt{spark} = [split //,
+ $_[1] || ($opt{ascii} ? ' ..oOO' : ' ▁▂▃▄▅▆▇█')
+ ];
},
'palette=s' => sub {
$opt{palette} = {
exit;
},
'usage|h' => sub {
- local $/ = undef; # slurp
- my $pod = readline *DATA;
- $pod =~ s/^=over\K/ 25/; # indent options list
- $pod =~ s{
- ^=item \h \N*\n\n \N*\n \K # first line
- (?: (?: ^=over .*? ^=back\n )? (?!=) \N*\n )*
- }{\n}g; # abbreviate options
- $pod =~ s/[.,](?=\n)//g; # trailing punctuation
- $pod =~ s/^=item\ \K(?=--)/____/g; # align long options
- # abbreviate <variable> indicators
- $pod =~ s/\Q>.../s>/g;
- $pod =~ s/<(?:number|count|seconds)>/N/g;
- $pod =~ s/<character(s?)>/\Uchar$1/g;
- $pod =~ s/\Q | /|/g;
- $pod =~ s/(?<!\w)<([a-z]+)>/\U$1/g; # uppercase
-
- require Pod::Usage;
- my $parser = Pod::Usage->new(USAGE_OPTIONS => {
- -indent => 2, -width => 78,
- });
- $parser->select('SYNOPSIS', 'OPTIONS');
- $parser->output_string(\my $contents);
- $parser->parse_string_document($pod);
-
- $contents =~ s/\n(?=\n\h)//msg; # strip space between items
- $contents =~ s/^\ \ \K____/ /g; # nbsp substitute
- print $contents;
+ /^=/ ? last : print for readline *DATA; # text between __END__ and pod
exit;
},
'help|?' => sub {
$opt{color} //= -t *STDOUT; # enable on tty
$opt{'graph-format'} //= '-';
$opt{trim} *= $opt{width} / 100 if $opt{trimpct};
-$opt{units} = [split //, ' kMGTPEZYyzafpnμm'] if $opt{'human-readable'};
+$opt{units} = [split //, ' kMGTPEZYyzafpn'.($opt{ascii} ? 'u' : 'μ').'m']
+ if $opt{'human-readable'};
$opt{anchor} //= qr/\A/;
$opt{'value-length'} = 6 if $opt{units};
$opt{'value-length'} = 1 if $opt{unmodified};
$opt{'sum-format'} = sub { sprintf '%.8g', $_[0] };
$opt{'calc-format'} = sub { sprintf '%*.*f', 0, 2, $_[0] };
$opt{'value-format'} = $opt{units} && sub {
- my $unit = int(log(abs $_[0] || 1) / log(10) - 3*($_[0] < 1) + 1e-15);
+ my $unit = int(
+ log(abs $_[0] || 1) / log(10)
+ - 3 * ($_[0] < .9995) # shift to smaller unit if below 1
+ - log(.9995) / log(10) # 3 digits rounding up
+ + 1e-15 # float imprecision
+ );
my $float = $_[0] !~ /^0*[-0-9]{1,3}$/;
sprintf('%3.*f%1s',
$float && ($unit % 3) == ($unit < 0), # tenths
}
elsif (length > $trimpos) {
# cut and replace (intentional lvalue for speed, contrary to PBP)
- substr($_, $trimpos - 1) = '…';
+ substr($_, $trimpos - 1) = $opt{ascii} ? '>' : '…';
}
}
push @lines, $_;
sub show_lines {
-state $nr = $opt{hidemin};
-@lines or return;
+state $nr =
+ $opt{hidemin} < 0 ? @lines + $opt{hidemin} + 1 :
+ $opt{hidemin};
@lines > $nr or return;
+my $limit = $#lines;
+if (defined $opt{hidemax}) {
+ if ($opt{hidemin} and $opt{hidemin} < 0) {
+ $limit -= $opt{hidemax} - 1;
+ }
+ else {
+ $limit = $opt{hidemax} - 1;
+ }
+}
+
@order = sort { $b <=> $a } @order unless tied @order;
my $maxval = $opt{maxval} // (
- $opt{hidemax} ? max grep { length } @values[0 .. $opt{hidemax} - 1] :
+ $opt{hidemax} ? max grep { length } @values[$nr .. $limit] :
$order[0]
) // 0;
my $minval = $opt{minval} // min $order[-1] // (), 0;
color(0),
) if $opt{header};
-while ($nr <= $#lines) {
- $nr >= $opt{hidemax} and last if defined $opt{hidemax};
+while ($nr <= $limit) {
my $val = $values[$nr];
my $rel = length $val && $range && ($val - $minval) / $range;
my $color = !length $val || !$opt{palette} ? undef :
color($color) for $val;
}
my $line = $lines[$nr] =~ s/\n/$val/r;
+ if (not length $val) {
+ say $line;
+ next;
+ }
printf '%-*s', $len + length($val), $line;
print $barmark[$_] // $opt{'graph-format'}
for 1 .. $size && (($values[$nr] || 0) - $minval) * $size + .5;
sub show_stat {
if ($opt{hidemin} or $opt{hidemax}) {
- printf '%.8g of ', $opt{'sum-format'}->(sum(grep { length }
- @values[$opt{hidemin} .. ($opt{hidemax} || @lines) - 1]
- ) // 0);
+ my $linemin = $opt{hidemin};
+ my $linemax = ($opt{hidemax} || @lines) - 1;
+ if ($linemin < 0) {
+ $linemin += @lines;
+ $linemax = @lines - $linemax;
+ }
+ printf '%.8g of ', $opt{'sum-format'}->(
+ sum(grep {length} @values[$linemin .. $linemax]) // 0
+ );
}
if (@order) {
my $total = sum @order;
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) . $opt{'calc-format'}->($total / @order) . color(0),
- color(32) . $order[0] . color(0),
+ color(31) . ($opt{'value-format'} || sub {$_[0]})->($order[-1]) . color(0),
+ color(36) . ($opt{'value-format'} || $opt{'calc-format'})->($total / @order) . color(0),
+ color(32) . ($opt{'value-format'} || sub {$_[0]})->($order[0]) . color(0),
);
}
say '';
show_exit();
__END__
+Usage:
+ barcat [OPTIONS] [FILES|NUMBERS]
+
+Options:
+ -a, --[no-]ascii Restrict user interface to ASCII characters
+ -c, --[no-]color Force colored output of values and bar markers
+ -f, --field=(N|REGEXP) Compare values after a given number of whitespace
+ separators
+ --header Prepend a chart axis with minimum and maximum
+ values labeled
+ -H, --human-readable Format values using SI unit prefixes
+ -t, --interval[=(N|-LINES)]
+ Output partial progress every given number of
+ seconds or input lines
+ -l, --length=[-]SIZE[%] Trim line contents (between number and bars)
+ -L, --limit[=(N|-LAST|START-[END])]
+ Stop output after a number of lines
+ --graph-format=CHAR Glyph to repeat for the graph line
+ -m, --markers=FORMAT Statistical positions to indicate on bars
+ --min=N, --max=N Bars extend from 0 or the minimum value if lower
+ --palette=(PRESET|COLORS)
+ Override colors of parsed numbers
+ --spark[=CHARS] Replace lines by sparklines
+ -s, --stat Total statistics after all data
+ -u, --unmodified Do not reformat values, keeping leading whitespace
+ --value-length=SIZE Reserved space for numbers
+ -w, --width=COLUMNS Override the maximum number of columns to use
+ -h, --usage Overview of available options
+ --help Full documentation
+ --version Version information
+
=encoding utf8
=head1 NAME
=over
+=item -a, --[no-]ascii
+
+Restrict user interface to ASCII characters,
+replacing default UTF-8 by their closest approximation.
+Input is always interpreted as UTF-8 and shown as is.
+
=item -c, --[no-]color
Force colored output of values and bar markers.
Prepend a dash (i.e. make negative) to enforce padding
regardless of encountered contents.
-=item -L, --limit[=(<count> | <start>-[<end>])]
+=item -L, --limit[=(<count> | -<last> | <start>-[<end>])]
Stop output after a number of lines.
+A single value indicates the last line number (like C<head>),
+or first line counting from the bottom if negative (like C<tail>).
+A specific range can be given by two values.
+
All input is still counted and analyzed for statistics,
but disregarded for padding and bar size.
git.shiar.nl / barcat.git / blobdiff