Source of chars.plp

<(common.inc.plp)><:

Html({
	title => 'character support sheet',
	version => '1.1',
	keywords => [qw'
		unicode glyph char character reference common ipa symbol sign mark table digraph
	'],
	stylesheet => [qw'light dark mono circus red'],
	data => [qw( data/unicode-cover.inc.pl data/font data/unicode-char.inc.pl )],
	raw => <<'EOT',
<style>
	tbody tr:hover th {
		font-size: 300%;
		min-width: 1.2em;
		border-width: 1px;
	}
</style>
EOT
});

use Shiar_Sheet::FormatChar;
my $glyphs = Shiar_Sheet::FormatChar->new;

my $groupinfo = do 'data/unicode-cover.inc.pl' or die $@ || $!;

my @ossel = @{ $groupinfo->{osdefault} };
my @fontlist = map { $_->{file} }
	@{ $groupinfo->{fonts} }[ map { @{ $groupinfo->{os}->{$_} } } @ossel ];

my %font;
for my $fontid (@fontlist) {
		my ($fontmeta, @fontrange) = do "data/font/$fontid.inc.pl";
		$fontmeta or next;
		$font{$fontid} = {
			(map { (-$_ => $fontmeta->{$_}) } keys %{$fontmeta}),
			map { (chr $_ => 1) } @fontrange
		};
}

# parse input

my ($title, $parent) = ('Character overview');
my $query = eval {
	for ($Request || ()) {
		return $_ if m{^[0-9 +-]+$};

		my ($cat, $name) = split m{/}, $_, 2 or die "invalid query\n";
		if (!$name) {
			($cat, $name) = ('table', $cat);
		}

		my $row = $groupinfo->{$cat}->{$name}
			or die "unknown character group $cat/$name\n";

		$title = ucfirst EscapeHTML($name).' characters';
		$parent = $cat;
		return EscapeHTML($row->{query});
	}
} || $get{q};

say "<h1>$title</h1>";

if (!$query) {
	Alert('Unicode group not specified', $@);
	exit;
};

for ($parent || 'Unicode range') {
	my %CATDESC = (
		block    => '<a href="/charset/unicode">Unicode block</a>',
		script   => 'Unicode script',
		category => 'Unicode category',
		table    => '<a href="/unicode">Unicode preset group</a>',
	);
	say sprintf('<p>List %s in selected %s.</p>',
		'characters and <a href="/font">font support</a>',
		$CATDESC{$parent} || $parent,
	);
}

my @chars;
for (map { split /[^\d-]/ } $query) {
	my @range = split /-/, $_, 2;
	m/^[0-9]+$/ or die "Invalid code point $_ in query $query\n" for @range;
	push @chars, chr $_ for $range[0] .. ($range[1] // $range[0]);
}

@chars or die "No match for query $query\n";

@chars <= 1500 or die sprintf(
	'Too many matches (%d) for query %s'."\n",
	scalar @chars, $query,
);

# output character list

say '<div>';
print '<table class="mapped cover">';
print '<col>' x 3;
print "<colgroup span=$_>"
	for 2, map { scalar @{ $groupinfo->{os}->{$_} } } @ossel;

print '<thead><tr>';
print '<td colspan=3>character';
print '<td colspan=2>input';
printf '<td colspan=%d>%s', scalar @{ $groupinfo->{os}->{$_} }, $_
	for @ossel;

print '<tr>';
print '<td colspan=2>unicode';
print '<td>name';
print '<td><a href="/digraphs" title="digraph">di</a><td>html';
printf('<td title="%s">%s', map { EscapeHTML($_) }
	join("\n", $font{$_}->{-name}, $font{$_}->{-description}),
	$font{$_}->{-abbr},
) for @fontlist;
say '</thead>';

for my $chr (@chars) {
	my $codepoint = ord $chr;
	my $ascii = $codepoint <= 127;

	say '<tr><th>', $chr;
	my $info = $glyphs->glyph_info($codepoint);
	my ($class, $name, $mnem, $entity, $string) = @$info;
	print "<td>$_" for sprintf('%X', $codepoint), EscapeHTML($name || '?');
	printf '<td class="%s">%s', @$_ for (
		[$ascii ? 'l0' : defined $mnem ? $class =~ /\bu-di\b/ ? 'l4' : 'l3' : 'l1',
			EscapeHTML($mnem) // ''],
		[$ascii ? 'l0' : defined $entity ? 'l4' : 'l1', $entity // ''],
		(map {
			!defined $font{$_}->{-name} ? [l0 => '?'] :
			$font{$_}->{$chr} ? [l4 => '✔'] : [l1 => '✘']
		} @fontlist),
	);
}

say "</table>\n";
say "</div>\n";