From c08f6520ece85c4238d6484237ebe9d1fa0adae8 Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Mon, 4 Dec 2023 23:39:38 +0100
Subject: [PATCH] termcol: export gimp palette on .gpl requests

---
 termcol.plp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/termcol.plp b/termcol.plp
index 5f89c3f..f76e293 100644
--- a/termcol.plp
+++ b/termcol.plp
@@ -1,5 +1,24 @@
 <(common.inc.plp)><:
 
+if (my ($name) = $Request =~ /(.+)\.gpl\z/) {
+	my $palettes = Data('termcol');
+	my $palette = $palettes->{$name}
+		or Abort("Palette '$name' not found", 404);
+	ref $palette ne 'ARRAY'
+		or Abort("Group contains multiple palettes: ".join(', ', @{$palette}));
+
+	$header{content_type} = 'text/x-gimp-gpl';
+	say 'GIMP Palette';
+	say 'Name: ', $palette->{name} // $name;
+	say 'Columns: 8';
+	say '#';
+	for (@{ $palette->{list} }) {
+		my ($rgb, $name) = split /:/, $_, 3;
+		say join ' ', unpack('C*', pack 'H6', $rgb), $name;
+	}
+	exit;
+}
+
 Html({
 	title => ($Request ? 'terminal colour' : 'colour palettes') . ' cheat sheet',
 	version => '1.4',
-- 
2.30.0