From f4202b592c541333b3cd4aca471025dea8cb18fd Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Tue, 11 Apr 2017 00:19:39 +0200
Subject: [PATCH] latin: highlight vowel columns

---
 latin.plp | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/latin.plp b/latin.plp
index 7f94ebf..897fe0a 100644
--- a/latin.plp
+++ b/latin.plp
@@ -120,6 +120,7 @@ if ($! or $@) {
 	Alert("Table data not found", $@ || $!);
 }
 else {
+	my %VOWELCOLS = (map { ($_ => 1) } 0, 4, 8, 14, 20, 24);
 	say '<table class="glyphs">';
 	for my $row (pairs @table) {
 		my ($title, $cells) = @{$row};
@@ -133,13 +134,23 @@ else {
 				$colspan++;
 				next;
 			}
+			my @class;
+			push @class ,'l0' if $VOWELCOLS{$col - $colspan};
+			push @class, $_ ? 'ex' : 'u-invalid' if s/^-//;
+
 			print "\t<td";
+			if ($col > 26) {
+				# special character for sample generation
+				print ' hidden';  # sample only
+			}
+			else {
+				print ' title=', chr($col + ord('A') - $colspan);
+			}
 			if ($colspan > 1) {
 				print " colspan=$colspan";
 				$colspan = 1;
 			}
-			print ' hidden' if $col > 26;  # sample only
-			print ' class=', $_ ? 'ex' : 'u-invalid' if s/^-//;
+			printf ' class="%s"', "@class" if @class;
 			print '>';
 			say;
 		}
-- 
2.30.0