5 use open IO => ':utf8';
10 $header{content_type} = 'text/html; charset=utf-8';
12 :><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
13 "http://www.w3.org/TR/html4/loose.dtd">
17 <title>terminal colour cheat sheet</title>
18 <meta http-equiv="content-type" content="utf-8">
19 <link rel="stylesheet" type="text/css" media="all" href="/base.css">
23 <h1>Terminal colours</h1>
28 # perceived brightness (using ITU-R recommendation 601 luma co-efficients)
30 return $r*.299 + $g*.587 + $b*.114;
35 my @rgb = @_ >= 3 ? @_ : (map {hex} $_[0] =~ /(..)/g);
37 $rgb24 .= sprintf '%X', min($_ / 17 + .5, 15) for @rgb[0..2];
39 $rgb48 .= sprintf '%02X', $_ for @rgb[0..2];
40 my $inverse = sprintf('%X', luminance(@rgb)/255 < .3 ? 12 : 0) x 3;
41 return sprintf '<td style="%s; padding:0 1ex">%s<td style="%s">%s<td style="%s">%s',
42 "background:#$rgb48; color:#$inverse",
44 "background:#000; color:#$rgb48",
46 "background:#FFF; color:#$rgb48",
52 qw/black maroon green olive navy purple cyan silver
53 gray red lime yellow blue fuchsia aqua white/,
54 qw/reset bold dim italic underline blink fastblink
59 qw/000000 800000 008000 808000 000080 800080 008080 C0C0C0
60 808080 FF0000 00FF00 FFFF00 0000FF FF00FF 00FFFF FFFFFF/,
64 qw/000000 AA0000 00AA00 AA5500 0000AA AA00AA 00AAAA AAAAAA
65 555555 FF5555 55FF55 FFFF55 5555FF FF55FF 55FFFF FFFFFF/,
69 qw/000000 CC0000 00CC00 CCCC00 4682B4 CC00CC 00CCCC E5E5E5
70 4C4C4C FF0000 00FF00 FFFF00 1E90FF FF00FF 00FFFF FFFFFF/,
74 qw/2E3436 CC0000 4E9A06 C4A000 3465A4 75507B 06989A D3D7CF
75 555753 EF2929 8AE234 FCE94F 729FCF AD7FA8 34E2E2 EEEEEC/,
79 my @termlist = qw(html cga xterm tango);
80 print '<tr>', (map {'<th colspan="3">'.$_} @termlist), "</tr>\n";
81 for my $num (0 .. 15) {
82 printf('<tr>%s</tr>'."\n",
84 my $rgb = $col{$_}[$num + 2];
85 colcell($_ eq 'html' ? $col{-name}[$num] : $num, $rgb, $col{$_}[0])