X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/eea96a232c342a6e73c9a8acdc8ee9e8218fe2ae..2337f25b4499555c4ad9755c91c2b930172a35e4:/charset.plp

diff --git a/charset.plp b/charset.plp
index 080e208..1186585 100644
--- a/charset.plp
+++ b/charset.plp
@@ -19,6 +19,7 @@ Html({
 <h1>Character encoding</h1>
 
 <:
+use POSIX qw( ceil );
 use Shiar_Sheet::FormatChar;
 my $glyphs = Shiar_Sheet::FormatChar->new;
 my $cols = 16;  # columns
@@ -162,7 +163,7 @@ for my $row (@request) {
 	$title .= " <aside>($_)</aside>" for $row->{setnote} // ();
 	printf '<caption>%s</caption>', $title;
 	print '<col>' x ($cols + 1);
-	my $coldigits = $colsize * $cols <= 16 ? 1 : 2;  # uniform length of hexadecimal header
+	my $coldigits = ceil(log($colsize * $cols) / log(16));  # uniform length of hexadecimal header
 	for my $section (qw{thead}) {
 		print "<$section><tr><th>↱";
 		printf '<th>%0*X', $coldigits, $_ * $colsize for 0 .. $cols - 1;