use open qw( :std :utf8 );
use re '/msx';
-our $VERSION = '1.07';
+our $VERSION = '1.08';
my %opt;
if (@ARGV) {
'graph-format=s' => sub {
$opt{'graph-format'} = substr $_[1], 0, 1;
},
- 'spark:s' => sub {
- $opt{spark} = [split //,
- $_[1] || ($opt{ascii} ? ' ..oOO' : ' ▁▂▃▄▅▆▇█')
- ];
- },
+ 'spark|_!',
+ 'indicators:s',
'palette=s' => sub {
$opt{palette} = {
fire => [qw( 90 31 91 33 93 97 96 )],
- fire88 => [map {"38;5;$_"} qw(
- 80 32 48 64 68 72 76 77 78 79 47
- )],
fire256=> [map {"38;5;$_"} qw(
235 52 88 124 160 196
202 208 214 220 226 227 228 229 230 231 159
)],
- ramp88 => [map {"38;5;$_"} qw(
- 64 65 66 67 51 35 39 23 22 26 25 28
- )],
whites => [qw( 1;30 0;37 1;37 )],
- greys => [map {"38;5;$_"} 52, 235..255, 47],
+ greys => [map {"38;5;$_"} 0, 232..255, 15],
+ rainbow=> [map {"38;5;$_"}
+ 196, # r
+ (map { 196 + $_*6 } 0..4), # +g
+ (map { 226 - $_*6*6 } 0..4), # -r
+ (map { 46 + $_ } 0..4), # +b
+ (map { 51 - $_*6 } 0..4), # -g
+ (map { 21 + $_*6*6 } 0..4), # +r
+ (map { 201 - $_ } 0..4), # -b
+ 196,
+ ],
}->{$_[1]} // [ split /[^0-9;]/, $_[1] ];
},
'stat|s!',
'signal-stat=s',
'unmodified|u!',
'width|w=i',
- 'version' => sub {
- say "barcat version $VERSION";
+ 'version|V' => sub {
+ my $mascot = $opt{ascii} ? '=^,^=' : 'ฅ^•ﻌ•^ฅ';
+ say "barcat $mascot version $VERSION";
exit;
},
'usage|h' => sub {
$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{indicators} = [split //,
+ $opt{indicators} || ($opt{ascii} ? ' .oO' : ' ▁▂▃▄▅▆▇█')
+] if defined $opt{indicators} or $opt{spark};
$opt{hidemin} = ($opt{hidemin} || 1) - 1;
$opt{input} = (@ARGV && $ARGV[0] =~ m/\A[-0-9]/) ? \@ARGV : undef
and undef $opt{interval};
sub show_lines {
state $nr =
- $opt{hidemin} < 0 ? @lines + $opt{hidemin} + 1 :
+ $opt{hidemin} < 0 ? max(0, @lines + $opt{hidemin} + 1) :
$opt{hidemin};
@lines > $nr or return;
if ($opt{hidemin} and $opt{hidemin} < 0) {
$limit -= $opt{hidemax} - 1;
}
- else {
+ elsif ($opt{hidemax} <= $limit) {
$limit = $opt{hidemax} - 1;
}
}
max map { length $values[$_] && length $lines[$_] }
0 .. min $#lines, $opt{hidemax} || (); # left padding
my $size = defined $opt{width} && $range &&
- ($opt{width} - $lenval - $len) / $range; # bar multiplication
+ ($opt{width} - $lenval - $len - !!$opt{indicators}) / $range; # bar multiplication
my @barmark;
if ($opt{markers} and $size > 0) {
$val == $order[0] ? $opt{palette}->[-1] : # max
$val == $order[-1] ? $opt{palette}->[0] : # min
$opt{palette}->[ $rel * ($#{$opt{palette}} - 1) + 1 ];
+ my $indicator = $opt{indicators} && $opt{indicators}->[
+ !$val || !$#{$opt{indicators}} ? 0 : # blank
+ $#{$opt{indicators}} < 2 ? 1 :
+ $val >= $order[0] ? -1 :
+ $rel * ($#{$opt{indicators}} - 1e-14) + 1
+ ];
if ($opt{spark}) {
say '' if $opt{width} and $nr and $nr % $opt{width} == 0;
- print color($color), $opt{spark}->[
- !$val || !$#{$opt{spark}} ? 0 : # blank
- $val == $order[0] ? -1 : # max
- $val == $order[-1] ? 1 : # min
- $#{$opt{spark}} < 3 ? 1 :
- $rel * ($#{$opt{spark}} - 3) + 2.5
- ];
+ print color($color), $_ for $indicator;
next;
}
+ print $indicator if defined $indicator;
if (length $val) {
$val = $opt{'value-format'} ? $opt{'value-format'}->($val) :
--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
+ -_, --spark Replace lines by sparklines
+ --indicators[=CHARS] Prefix a unicode character corresponding to each
+ value
-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
+ --help Full pod documentation
+ -V, --version Version information
=encoding utf8
=head1 NAME
-barcat - graph to visualize input values
+barcat - concatenate texts with graph to visualize values
=head1 SYNOPSIS
Predefined color schemes are named I<whites> and I<fire>,
or I<greys> and I<fire256> for 256-color variants.
-=item --spark[=<characters>]
+=item -_, --spark
Replace lines by I<sparklines>,
-single characters corresponding to input values.
-A specified sequence of unicode characters will be used for
-Of a specified sequence of unicode characters,
-the first one will be used for non-values,
-the last one for the maximum,
-the second (if any) for the minimum,
-and any remaining will be distributed over the range of values.
+single characters (configured by C<--indicators>)
+corresponding to input values.
+
+=item --indicators[=<characters>]
+
+Prefix a unicode character corresponding to each value.
+The first specified character will be used for non-values,
+the remaining sequence will be distributed over the range of values.
Unspecified, block fill glyphs U+2581-2588 will be used.
=item -s, --stat
=item --help
-Full documentation
-rendered by perldoc.
+Full pod documentation
+as rendered by perldoc.
-=item --version
+=item -V, --version
Version information.
Memory usage of user processes with long names truncated:
- ps xo %mem,pid,cmd | barcat -l40
+ ps xo rss,pid,cmd | barcat -l40
Monitor network latency from prefixed results:
Number of HTTP requests per day:
- cat log/access.log | cut -d\ -f4 | cut -d: -f1 | uniq -c | barcat
+ cat httpd/access.log | cut -d\ -f4 | cut -d: -f1 | uniq -c | barcat
Any kind of database query with counts, preserving returned alignment:
In PostgreSQL from within the client:
- postgres=> SELECT sin(generate_series(0, 3, .1)) \g |barcat
+ > SELECT sin(generate_series(0, 3, .1)) \g |barcat
Earthquakes worldwide magnitude 1+ in the last 24 hours:
External datasets, like movies per year:
curl https://github.com/prust/wikipedia-movie-data/raw/master/movies.json -L |
- perl -054 -nlE 'say if s/^"year"://' | uniq -c | barcat
-
-But please get I<jq> to process JSON
-and replace the manual selection by C<< jq '.[].year' >>.
+ jq .[].year | uniq -c | barcat
Pokémon height comparison:
curl https://sdw.ecb.europa.eu/export.do \
-Gd 'node=SEARCHRESULTS&q=EXR.D.USD.EUR.SP00.A&exportType=csv' |
- grep '^[12]' | barcat -f',\K' --value-length=7
+ barcat -f',\K' --value-length=7
Total population history in XML from the World Bank:
- curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL -L |
- xmllint --xpath '//*[local-name()="date" or local-name()="value"]' - |
- sed -r 's,</wb:value>,\n,g; s,(<[^>]+>)+, ,g' | barcat -f1 -H
+ curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL |
+ xmlstarlet sel -t -m '*/*' -v wb:date -o ' ' -v wb:value -n |
+ barcat -f1 -H
And of course various Git statistics, such commit count by year:
Sparkline graphics of simple input given as inline parameters:
- barcat --spark= 3 1 4 1 5 0 9 2 4
+ barcat -_ 3 1 4 1 5 0 9 2 4
+
+Misusing the spark functionality to draw a lolcat line:
+
+ seq $(tput cols) | barcat --spark --indicator=- --palette=rainbow
=head1 AUTHOR
git.shiar.nl / barcat.git / blobdiff