X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/43f639f1fdbf9dd95236037d9291854559e92d92..ff84da253ec62aa4a552d8b98aae013b0c7ea5f8:/termcol.plp?ds=inline
diff --git a/termcol.plp b/termcol.plp
index e313856..44ee75b 100644
--- a/termcol.plp
+++ b/termcol.plp
@@ -1,90 +1,204 @@
+<(common.inc.plp)><:
+
+Html({
+ title => 'terminal colour cheat sheet',
+ version => '1.0',
+ 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'],
+});
+
+:>
+
+<:
+use Shiar_Sheet::Colour '1.03';
+use List::Util qw( min max );
-$header{content_type} = 'text/html; charset=utf-8';
+my $palettes = do 'termcol.inc.pl';
+die "Cannot open palette data: $_\n" for $@ || $! || ();
-:>
-
+sub colcell {
+ my $name = shift // return "
\n";
+ my $col = Shiar_Sheet::Colour->new(@_);
+ my $minhex = $col->rgb24;
+ my $css = '#' . $col->rgb48;
+ my $inverse = '#' . sprintf('%X', $col->luminance/255 < .3 ? 12 : 0) x 3;
-
-terminal colour cheat sheet
-
-
-
+ my $sample = [ qw(#000 #FFF) ];
+ ($name, $sample) = @$name if ref $name eq 'ARRAY';
-
-Terminal colours
+ my $out = sprintf(' | %s',
+ join(',', map { int } @$col),
+ "background:$css; color:$inverse; padding:0 1ex",
+ $name,
+ );
+ $out .= sprintf ' | %s ', "background:$_; color:$css", $minhex
+ for @$sample;
+ return "$out\n";
+}
+
+if ($get{v}) {
+ my %reorder = (
+ arnegame => [ 0,5,9,12 , 3,6,10,13,1 , 4,7,8,11,14,15,2 ],
+ arnegame => [ 0,3,10,6,12,9,13,1 , 5,7,11,8,14,4,15,2 ],
+ c64 => [ 0,2,5,9,6,4,3,15 , 11,10,13,7,14,8,12,1 ],
+ msx2 => [ 0,6,2,10,4,13,7,14 , 1,8,3,11,5,9,12,15 ],
+ risc => [ 7,11,13,14,8,12,15,1, 6,5,10,9,4,3,2,0],
+ mac2 => [ 15,3,9,11,6,5,7,12 , 14,2,8,1,13,4,10,0 ],
+ );
+ $reorder{$_} = $reorder{msx2} for qw( msx1 arnejmp );
+ while (my ($name, $order) = each %reorder) {
+ for my $pal ( $palettes->{$name}) {
+ $pal = [ map { $pal->[$_ + 1] =~ s/:|$/:$_/r } -1, @{$order} ];
+ }
+ }
+}
+
+my @termlist = qw( cga xterm tango app html xkcd );
+push @termlist, qw( c64 msx2 mac2 risc arnegame ) if exists $get{v};
+for my $term (@termlist) {
+ my $info = $palettes->{$term};
+ 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 )
+ ),
+ $caption,
+ ) if $info->{href} or $info->{title};
+
+ if (my $colours = $info->{list}) {
+ print '', "\n";
+ printf "%s\n", $caption;
+ for my $num (0 .. $#{$colours}) {
+ my ($rgb, $name) = split /:/, $colours->[$num], 3;
+ $name ||= $num;
+ $name = [ $name, ['#333'] ] if $term eq 'xkcd';
+ print '', colcell($name, $rgb);
+ }
+ print " \n\n";
+ }
+}
+
+if (exists $get{v}) {
+ print "\n";
+ print "Amstrad CPC\n";
+ print coltable_hsv(3, sub {
+ $_[2] + 3 * ($_[0] + 3 * $_[1]),
+ map { $_ && $_ * 127 + 1 } @_
+ });
+ print " \n\n";
+}
+:>
+
+
-
+
<:
-sub luminance {
- # perceived brightness (using ITU-R recommendation 601 luma co-efficients)
- my ($r, $g, $b) = @_;
- return $r*.299 + $g*.587 + $b*.114;
+sub coltable_hsv {
+ my ($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 } @_ };
+ $greyramp ||= [];
+
+ my %greymap; # name => value
+ my @colmap; # saturation => value => hue => [name, r,g,b]
+ my $offset = 16 * ($dim > 3);
+
+ 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 = Shiar_Sheet::Colour->new(@rgb)->hue * $hmax;
+ my $v = max(@rgb);
+ my $s = abs(min(@rgb) - max(@rgb));
+
+ if (!$s) {
+ my ($index, $l) = $rgbval->(@rgb);
+ $greymap{$index} = $l;
+ next;
+ }
+
+ $v = $vmax - $v;
+ $s = $smax - $s - $v;
+
+ $colmap[$s][$v][$h] = [ $rgbval->(@rgb) ];
+ }
+ }
+ }
+
+ my $out = '';
+ $out .= sprintf ' ', 3 * @{$_} for @colmap;
+ my $huerow = $colmap[0][0]; # first {$_} map { @{$_} } @colmap;
+ for my $h (grep { $huerow->[$_] } 0 .. $#{$huerow}) {
+ $out .= '';
+ $out .= colcell(@$_) for map { $_->[$h] } map { @{$_} } @colmap;
+ }
+
+ $offset += $dim ** 3;
+ $greymap{$offset++} = $_ for @{$greyramp};
+
+ $out .= ' ';
+ my $col = 0;
+ my $colbreak = scalar map { @$_ } @colmap; # same width as hue rows
+ for my $num (sort { $greymap{$a} <=> $greymap{$b} } keys %greymap) {
+ $out .= '' unless $col++ % $colbreak;
+ $out .= colcell($num, ($greymap{$num}) x 3);
+ }
+
+ return $out;
}
-sub colcell {
- my $id = shift;
- my @rgb = @_ >= 3 ? @_ : (map {hex} $_[0] =~ /(..)/g);
- my $rgb24 = '';
- $rgb24 .= sprintf '%X', min($_ / 17 + .5, 15) for @rgb[0..2];
- my $rgb48 = '';
- $rgb48 .= sprintf '%02X', $_ for @rgb[0..2];
- my $inverse = sprintf('%X', luminance(@rgb)/255 < .3 ? 12 : 0) x 3;
- return sprintf '%s | %s | %s',
- "background:#$rgb48; color:#$inverse",
- $id,
- "background:#000; color:#$rgb48",
- $rgb24,
- "background:#FFF; color:#$rgb48",
- $rgb24,
+{
+ print "88-colour space\n";
+ print "\n";
+ print coltable_hsv(4,
+ sub {
+ $_[2] + 4 * ($_[1] + 4 * $_[0]) + 16,
+ map { (0, 139, 205, 255)[$_] } @_
+ },
+ [map { ($_ + 2 + ($_>0)) * 255/11 } 0 .. 7],
+ );
+ print " \n";
}
-my %col = (
- -name => [
- 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 CCCCCC/,
- qw/000000 800000 008000 808000 000080 800080 008080 C0C0C0
- 808080 FF0000 00FF00 FFFF00 0000FF FF00FF 00FFFF FFFFFF/,
- ],
- cga => [
- qw/000000 CCCCCC/,
- qw/000000 AA0000 00AA00 AA5500 0000AA AA00AA 00AAAA AAAAAA
- 555555 FF5555 55FF55 FFFF55 5555FF FF55FF 55FFFF FFFFFF/,
- ],
- xterm => [
- qw/000000 CCCCCC/,
- qw/000000 CC0000 00CC00 CCCC00 4682B4 CC00CC 00CCCC E5E5E5
- 4C4C4C FF0000 00FF00 FFFF00 1E90FF FF00FF 00FFFF FFFFFF/,
- ],
- tango => [
- qw/000000 CCCCCC/,
- qw/2E3436 CC0000 4E9A06 C4A000 3465A4 75507B 06989A D3D7CF
- 555753 EF2929 8AE234 FCE94F 729FCF AD7FA8 34E2E2 EEEEEC/,
- ],
-);
-
-my @termlist = qw(html cga xterm tango);
-print ' | ', (map {''.$_} @termlist), " | \n";
-for my $num (0 .. 15) {
- printf('%s '."\n",
- join('', map {
- my $rgb = $col{$_}[$num + 2];
- colcell($_ eq 'html' ? $col{-name}[$num] : $num, $rgb, $col{$_}[0])
- } @termlist ),
+if ($ENV{PATH_INFO} =~ /256/) {
+ print "256-colour space\n";
+ print "\n";
+ print coltable_hsv(6,
+ sub {
+ $_[2] + 6 * ($_[1] + 6 * $_[0]) + 16,
+ map { $_ && $_*40 + 55 } @_
+ },
+ [ map { $_ * 10 + 8 } 0 .. 23 ],
);
+ print " \n";
}
-:>
+:>
+
|