Html({
title => 'terminal colour cheat sheet',
- version => 'v1.0',
+ version => '1.1',
description => [
"Index of all terminal/console colour codes,",
"with an example result of various environments.",
keywords => [qw'
color code terminal console escape table xterm rxvt
'],
+ data => ['termcol.inc.pl'],
stylesheet => [qw'light dark'],
});
+my @draw = map { [$_, s/\W+\z//] } grep { $_ } split m(/),
+ $get{img} // exists $get{img} && 'indi.png';
+
+my @termlist;
+push @termlist, split /\W+/, $ENV{PATH_INFO} || 'default';
+
:>
<h1>Terminal colours</h1>
+<p>
+<span title="ECMA-48">ANSI</span> (VT100, ISO-6429) 16-colour text palette
+as implemented by various systems and programs.
+<:
+print
+ "@termlist" ne 'default' ? 'Additional palettes are included as specified.' :
+ 'Also see <a href="/termcol/more">8-bit legacy hardware</a> palettes.';
+:>
+</p>
+
<div class="section">
<:
-use Shiar_Sheet::Colour;
+use 5.010;
+use Shiar_Sheet::Colour 1.04;
+use List::Util qw( min max );
+use POSIX qw( ceil );
+
+my $palettes = do 'termcol.inc.pl';
+die "Cannot open palette data: $_\n" for $@ || $! || ();
+my $more = do 'termcol-xcolor.inc.pl';
+$palettes = {%$palettes, %$more};
sub colcell {
- my $name = shift;
+ my $name = shift // return "<td>\n";
my $col = Shiar_Sheet::Colour->new(@_);
my $minhex = $col->rgb24;
my $css = '#' . $col->rgb48;
my $out = sprintf('<td title="%s" style="%s">%s',
join(',', map { int } @$col),
- "background:$css; color:$inverse; padding:0 1ex",
+ "background:$css; color:$inverse",
$name,
);
- $out .= sprintf '<td style="%s"><code>%s</code>', "background:$_; color:$css", $minhex
- for @$sample;
+ $out .= sprintf('<samp style="%s"><small>%s</small></samp>',
+ "background:$_; color:$css", $minhex
+ ) for @$sample;
return "$out\n";
}
-my %col = (
- -html => [
- sprintf('<a title="%s" href="%s">html</a>',
- 'HTML keywords (inherited by CSSā„2.1 and SVG), mostly identical to X11',
- 'http://www.w3.org/TR/css3-color/#html4',
- ),
- qw/black maroon green olive navy purple cyan silver
- gray red lime yellow blue fuchsia aqua white/,
- qw/reset bold dim italic underline blink fastblink
- reverse hidden/,
- ],
- html => [
- qw/000000 800000 008000 808000 000080 800080 008080 C0C0C0
- 808080 FF0000 00FF00 FFFF00 0000FF FF00FF 00FFFF FFFFFF/,
- ],
-# -cga => linux console, kde?
- cga => [
- qw/000000 AA0000 00AA00 AA5500 0000AA AA00AA 00AAAA AAAAAA
- 555555 FF5555 55FF55 FFFF55 5555FF FF55FF 55FFFF FFFFFF/,
- ],
-# -xterm => rxvt except for blues
- xterm => [
- qw/000000 CC0000 00CC00 CCCC00 4682B4 CC00CC 00CCCC E5E5E5
- 4C4C4C FF0000 00FF00 FFFF00 1E90FF FF00FF 00FFFF FFFFFF/,
- ],
-# -tango => default Gnome theme
- tango => [
- qw/2E3436 CC0000 4E9A06 C4A000 3465A4 75507B 06989A D3D7CF
- 555753 EF2929 8AE234 FCE94F 729FCF AD7FA8 34E2E2 EEEEEC/,
- ],
- -xkcd => [
- sprintf('<a title="%s" href="%s">xkcd</a>',
- 'human averages in xkcd survey results',
- 'http://blog.xkcd.com/2010/05/03/color-survey-results/',
- ),
- qw/black maroon green olive navy purple teal silver
- grey red lime yellow blue fuchsia cyan white/,
- ],
- xkcd => [
- qw/000000 650021 15b01a 6e750e 01153e 7e1e9c 029386 c5c9c7
- 929591 e50000 aaff32 ffff14 0343df ed0dd9 00ffff ffffff/,
- ],
- -android => [
- sprintf('<a href="%s" title="%s">android</a>',
- 'http://developer.android.com/guide/practices/ui_guidelines/icon_design.html',
- 'recommended colour palette for Android icons',
- ),
- qw/white light medium dark black blue1 blue2 blue3
- green1 green2 green3 orange1 orange2 orange3 red /,
- ],
- android => [
- qw/FFFFFF BFBFBF 808080 404040 000000 6699FF 3366CC 003399
- 99CC33 00CC00 669933 FFCC00 FF9900 FF6600 CC0000 /,
- ],
- -app => [
- 'Term.app',
- ],
- app => [
- qw/000000 C23621 25BC24 ADAD27 492EE1 D338D3 33BBC8 CBCCCD
- 818383 FC391F 31E722 EAEC23 5833FF F935F8 14F0F0 E9EBEB /,
- ],
- putty => [
- qw/000000 BB0000 00BB00 BBBB00 0000BB BB00BB 00BBBB BBBBBB
- 555555 FF5555 55FF55 FFFF55 5555FF FF55FF 55FFFF FFFFFF /,
- ],
- -slutty => [
- sprintf('<a href="%s" title="%s">SluTTY</a>',
- 'http://www.npjh.com/slutty.html',
- 'PuTTY fork with light colour scheme',
+sub img_egapal {
+ my ($palette, $imgfile, $reindex) = @_;
+ return eval {
+ require Imager;
+ require MIME::Base64;
+
+ my @imgpal = map { Imager::Color->new(ref $_ ? @$_ : $_) } @{$palette};
+ state $imgcache = {};
+ my $img = $imgcache->{$imgfile}
+ //= Imager->new(file => "data/palimage/$imgfile")
+ or die Imager->errstr.$/;
+
+ do {
+ if ($reindex) {
+ $img->to_paletted({
+ make_colors => 'none',
+ colors => \@imgpal,
+ translate => 'closest',
+ });
+ }
+ else {
+ @{[ $img->getcolors ]} == @imgpal
+ or die "incompatible palette size\n";
+ $img->setcolors(colors => \@imgpal);
+ $img;
+ }
+ }->write(data => \my $imgdata, type => 'png');
+ return sprintf '<img src="data:image/png;base64,%s">',
+ MIME::Base64::encode_base64($imgdata);
+ } || $@;
+}
+
+sub coltable {
+ my ($term) = @_;
+ my $info = $palettes->{$term};
+
+ if (ref $info eq 'ARRAY') {
+ coltable($_) for @{$info};
+ }
+
+ ref $info eq 'HASH' or next;
+
+ my $caption = $info->{name} // $term;
+ $caption = sprintf('<%s %s>%s</%1$s>',
+ $info->{href} ? 'a' : 'span',
+ join(' ',
+ map { sprintf '%s="%s"', $_, $info->{$_} }
+ grep { defined $info->{$_} }
+ qw( href title )
),
- ],
- slutty => [
- qw/000000 9C1D1D 6C9446 AC9A47 335786 8F6496 486768 E0DCDC
- 2F2F2F CD5757 8FC35B D1C45E 5C81A9 BC95B7 76CBCB EEEEEC /,
- ],
-);
-
-for my $term (qw/cga xterm tango app html xkcd/) {
- print '<table>', "\n";
- printf "<caption>%s</caption>\n", $col{"-$term"}[0] || $term;
- for my $num (0 .. $#{ $col{$term} }) {
- my $rgb = $col{$term}[$num];
- my $name = $col{"-$term"}[$num + 1] || $num;
- $name = [ $name, ['#333'] ] if $term eq 'xkcd';
- print '<tr>', colcell($name, $rgb);
+ $caption,
+ ) if $info->{href} or $info->{title};
+
+ if (my $mapinfo = $info->{rgbmap}) {
+ print '<table class="color mapped">'."\n";
+ printf "<caption>%s</caption>\n", $caption;
+ print coltable_hsv(@{$mapinfo});
+ print "</table>\n\n";
}
- print "</table>\n\n";
-}
-:></div>
-<hr>
+ if (my $table = $info->{table}) {
+ print '<table class="color mapped">'."\n";
+ printf "<caption>%s</caption>\n", $caption;
+ for my $row (@$table) {
+ print '<tr>';
+ print colcell(ref $_ ? @$_ : $_ ? reverse split /:/ : undef) for @$row;
+ }
-<div class="section">
-<h2>88-colour space</h2>
-<:
-for my $r (0 .. 3) {
- print '<table>';
- for my $g (0 .. 3) {
- print '<tr>';
- for my $b (0 .. 3) {
- my $index = $r*4*4 + $g*4 + $b + 16;
- print colcell($index, map {(0, 139, 205, 255)[$_]} $r, $g, $b);
+ if (@draw) {
+ my $width = scalar @{ $table->[0] };
+ my @imgpal = map {
+ [ ref $_ ? @{$_}[1 .. 3] : map {hex} /(..)(..)(..)/ ]
+ } map { @{$_} } @{$table};
+ for (@draw) {
+ print "<tr><td colspan=$width>", img_egapal(\@imgpal, @{$_});
}
}
- print "</table>\n";
-}
-print "\n";
+ print "</table>\n\n";
+ }
-print '<table><tr>';
-print colcell(80+$_, (($_ + 2 + ($_>0)) * 255/11) x 3) for 0 .. 7;
-print "</table>\n\n";
+ if (my $palette = $info->{list}) {
+ my $order = $get{order} && $get{order}.'order';
+ my $colours = colorder($palette,
+ $info->{$order} // $palettes->{ $info->{parent} }->{$order}
+ );
-:></div>
-<: if ($ENV{PATH_INFO} =~ /256/) { :>
-<hr>
+ my $rows = 8;
+ my $columns = ceil(@{$palette} / $rows);
-<div class="section">
-<h2>256-colour space</h2>
-<:
-for my $r (0 .. 5) {
- print '<table>';
- for my $g (0 .. 5) {
- print '<tr>';
- for my $b (0 .. 5) {
- my $index = $r*6*6 + $g*6 + $b + 16;
- print colcell($index, map { $_ && $_*40 + 55 } $r, $g, $b);
+ print '<table class=color>', "\n";
+ printf "<caption>%s</caption>\n", $caption;
+ for my $row (0 .. $rows - 1) {
+ print '<tr>';
+ for my $col (0 .. $columns - 1) {
+ my $num = $row + $col * $rows;
+ my ($rgb, $name) = split /:/, $colours->[$num], 3;
+ $name //= $rgb && $num;
+ $name = [ $name, [] ] if $term =~ /^msx/ and !$num;
+ $name = [ $name, ['#333'] ] if $term eq 'xkcd';
+ print colcell($name, $rgb);
+ }
+ }
+
+ for (@draw) {
+ my $imgpal = colorder($palette,
+ $info->{ansiorder} // $palettes->{ $info->{parent} }->{ansiorder}
+ );
+ print "<tr><td colspan=$columns>", img_egapal($imgpal, @{$_});
}
+ print "</table>\n\n";
}
- print "</table>\n";
}
-print "\n";
- print '<table>';
-for my $row (0, 12) {
- print '<tr>';
- print colcell(232+$_, ($_*10 + 8) x 3) for $row .. $row+11;
+sub colorder {
+ my ($palette, $reorder) = @_;
+ return [ map { $palette->[$_] =~ s/:(?![^:])|$/:$_/r } @{$reorder} ]
+ if $reorder;
+ return $palette;
+}
+
+sub coltable_hsv {
+ my ($dim, $rgbval, $greyramp) = @_;
+
+ my $hmax = 2 * $dim * 3; # each face of the rgb cube
+ my $vmax = $dim - 1;
+ my $smax = $dim - 1;
+ $rgbval ||= sub { join('', @_), map { int $_ * 255 / $vmax } @_ };
+
+ my @greymap = @{$greyramp || []}; # [name, r, g=l, b]
+ my @colmap; # saturation => value => hue => [name, r,g,b]
+
+ for my $r (0 .. $dim - 1) {
+ for my $g (0 .. $dim - 1) {
+ for my $b (0 .. $dim - 1) {
+ my @rgb = ($r, $g, $b);
+
+ my ($h, $s, $v) = Shiar_Sheet::Colour->new(@rgb)->hsv;
+
+ if (!$s) {
+ if (@greymap) {
+ push @greymap, [ $rgbval->(@rgb) ];
+ next;
+ }
+
+ $h = 1; # greyscale hue
+ $s = $smax - $v + 1; # spread brightness over saturation groups
+ $v &&= $smax # highest saturation
+ or $v = $s = 1; # black at initial column
+ }
+
+ $h *= $hmax;
+ $v = $vmax - $v;
+ $s = $smax - $s - $v;
+
+ $colmap[$s][$v][$h] = [ $rgbval->(@rgb) ];
+ }
+ }
+ }
+
+ my $out = '';
+ $out .= sprintf '<colgroup span=%d>', scalar @{$_} for @colmap;
+ my $huerow = $colmap[0][0]; # first {$_} map { @{$_} } @colmap;
+ for my $h (grep { $huerow->[$_] } 0 .. $#{$huerow}) {
+ $out .= '<tr>';
+ $out .= colcell(@$_) for map { $_->[$h] } map { reverse @{$_} } @colmap;
+ }
+
+ if (@greymap) {
+ $out .= '<tbody>';
+ my $col = 0;
+ my $colbreak = scalar map { @$_ } @colmap; # same width as hue rows
+ for my $cell (sort { $a->[1] <=> $b->[1] || $a->[0] <=> $b->[0] } @greymap) {
+ $out .= '<tr>' unless $col++ % $colbreak;
+ $out .= colcell(@{$cell});
+ }
+ }
+
+ if (@draw) {
+ my @palette = map { [ @{$_}[1 .. 3] ] } @greymap, map {@$_} map {@$_} @colmap;
+ my $tablespan = scalar map { @$_ } @colmap;
+ my $imgdata = img_egapal(\@palette, @{ $draw[0] });
+ $out .= "<tr><td colspan=$tablespan>$imgdata";
+ }
+
+ return $out;
}
- print "</table>\n";
-print "\n";
+coltable($_) for @termlist;
:></div>
-<: } :>
<hr>
git.shiar.nl / sheet.git / blobdiff