X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/c32011016e046e39ac53f81303c9f3b95b0e9c89..d04b40e629676a9b8fdd015d4b432e121925749b:/termcol.plp
diff --git a/termcol.plp b/termcol.plp
index 3dd1d1b..0b3d236 100644
--- a/termcol.plp
+++ b/termcol.plp
@@ -1,61 +1,180 @@
-<:
-use utf8;
-use strict;
-use warnings;
-use open IO => ':utf8';
-
-our $VERSION = 'v1.0';
+<(common.inc.plp)><:
-$header{content_type} = 'text/html; charset=utf-8';
+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'],
+});
-:>
-
+my @termlist;
+push @termlist, split /\W+/, $ENV{PATH_INFO} || 'default';
-
-
-# | xterm |
+
+ANSI (VT100, ISO-6429) 16-colour text palette
+as implemented by various systems and programs.
<:
-my %col = (
- -name => [
- qw/black red green orange blue magenta cyan gray
- gray red green yellow blue magenta cyan white/,
- qw/reset bold dim italic underline blink fastblink
- reverse hidden/,
- ],
- linux => [
- qw/000 CCC/,
- qw/000 A00 0A0 A50 00A A0A 0AA AAA
- 555 F55 5F5 FF5 55F F5F 5FF FFF/,
- ],
- xterm => [
- qw/000 CCC/,
- qw/000 C00 0C0 CC0 4682B4 C0C 0CC E5E5E5
- 4C4C4C F00 0F0 FF0 1E90FF F0F 0FF FFF/,
- ],
- tango => [
- qw/000 CCC/,
- qw/2E3436 CC0000 4E9A06 C4A000 3465A4 75507B 06989A D3D7CF
- 555753 EF2929 8AE234 FCE94F 729FCF AD7FA8 34E2E2 EEEEEC/,
- ],
-);
+print
+ "@termlist" ne "@{ $termgroup{default} }" ? 'Additional palettes are included as specified.' :
+ 'Also see 8-bit legacy hardware palettes.';
+:>
+
-for my $num (0 .. 15) {
- printf('%d | %s%s |
'."\n",
- $num,
- $col{-name}[$num],
- join('', map {sprintf ' ⪠',
- 'background:#'.$col{$_}[0].'; color:#'.$col{$_}[$num + 2],
- } qw/linux xterm tango/ ),
+
+<:
+use Shiar_Sheet::Colour '1.03';
+use List::Util qw( min max );
+
+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;
+
+ my $sample = [ qw(#000 #FFF) ];
+ ($name, $sample) = @$name if ref $name eq 'ARRAY';
+
+ my $out = sprintf(' | %s',
+ join(',', map { int } @$col),
+ "background:$css; color:$inverse",
+ $name,
);
+ $out .= sprintf('%s',
+ "background:$_; color:$css", $minhex
+ ) for @$sample;
+ return "$out\n";
+}
+
+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 $mapinfo = $info->{rgbmap}) {
+ print ''."\n";
+ printf "%s\n", $caption;
+ print coltable_hsv(@{$mapinfo});
+ print " \n\n";
+ }
+
+ if (my $colours = $info->{list}) {
+ if (my $reorder = $info->{ansiorder} and $get{v}) {
+ $colours = [ map { $colours->[$_] =~ s/:|$/:$_/r } @{$reorder} ];
+ }
+
+ print '', "\n";
+ printf "%s\n", $caption;
+ for my $num (0 .. $#{$colours}) {
+ my ($rgb, $name) = split /:/, $colours->[$num], 3;
+ $name ||= $num;
+ $name = [ $name, [] ] if $term =~ /^msx/ and !$num;
+ $name = [ $name, ['#333'] ] if $term eq 'xkcd';
+ print '', colcell($name, $rgb);
+ }
+ print " \n\n";
+ }
}
-:> | |
+
+sub coltable_hsv {
+ my ($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; # 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) {
+ if ($greyramp) {
+ my ($index, $l) = $rgbval->(@rgb);
+ $greymap{$index} = $l;
+ next;
+ }
+
+ $h = $hmax; # greyscale hue
+ $s = 1; # lowest saturation for other hues
+ $v = $s = $vmax if !$v; # black at full saturation
+ }
+
+ $v = $vmax - $v;
+ $s = $smax - $s - $v;
+
+ $colmap[$s][$v][$h] = [ $rgbval->(@rgb) ];
+ }
+ }
+ }
+
+ my $out = '';
+ $out .= sprintf '