Html({
title => 'charset cheat sheet',
- version => 'v1.0',
+ version => '1.0',
description => [
"Reference sheet with all glyphs in common character encoding tables,",
"and an overview of Unicode ranges and UTF-8 bytes.",
elsif ($input eq 'U') {
$row{table} = ' ' x 1024;
$row{set} = 'Unicode planes';
- $row{cell} = do 'charset-ucplanes.inc.pl';
+ $row{cell} = do 'charset-ucplanes.inc.pl'
+ or printf "<p class=error>Table data could not be read: <em>%s</em>.</p>\n", $@ || $!;
@nibble = (map { $_.0, $_.8 } 0 .. 7);
$nibsize = 8;
}
if ($row{set} eq 'Internal') {
$row{table} = ' ' x ($endpoint < 255 ? 640 : 8192);
$row{set} = 'Unicode BMP';
- $row{cell} = do 'charset-unicode.inc.pl';
+ $row{cell} = do 'charset-unicode.inc.pl'
+ or printf "<p class=error>Table data could not be read: <em>%s</em>.</p>\n", $@ || $!;
}
elsif ($row{set} eq 'utf-8-strict') {
$row{table} = undef;
$row{set} = 'UTF-8';
- $row{cell} = do 'charset-utf8.inc.pl';
+ $row{cell} = do 'charset-utf8.inc.pl'
+ or printf "<p class=error>Table data could not be read: <em>%s</em>.</p>\n", $@ || $!;
}
else {
$row{table} = decode($row{set}, pack 'C*', $row{offset} .. $endpoint);
);
}
+sub range_cell {
+ my ($table, $offset) = @_;
+ my $def = $table->{$offset} or return;
+ my ($len, $class, $name, $title) = @{$def};
+
+ my $attr = '';
+ $len /= $nibsize;
+ $name //= $len <= 2 ? 'res' : 'reserved';
+
+ if (my $part = $offset/$nibsize % 16) {
+ # continued row
+ my $cols = 16 - $part; # remaining
+ $cols = $len if $len < $cols; #TODO: optimise
+ if ($len -= $cols) {
+ # continued on new row
+ $table->{$offset + $nibsize*$cols} = [$len*$nibsize, "$class joinu", $name, $title];
+ $name = '';
+ $class .= ' joind';
+ }
+ $len = $cols;
+ }
+ elsif (my $rows = $len >> 4) {
+ # multiple full rows
+ if ($len -= $rows << 4) {
+ # partial row remains
+ $table->{$offset + $nibsize*$rows * 16} = [$len*$nibsize, "$class joinu", '', $title];
+ $class .= ' joind';
+ }
+ $attr .= sprintf ' rowspan=%d', $rows;
+ $len = 16;
+ }
+
+ $attr .= sprintf ' colspan=%d', $len unless $len == 1;
+ $attr .= $1 if $class and $class =~ s/( \w+="[^"]*")//;
+ $attr .= sprintf ' class="%s"', $class if $class;
+ $attr .= sprintf ' title="%s"', EscapeHTML($title) if $title;
+ return "<td$attr>$name";
+}
+
for my $row (@request) {
printf '<div class="section"><table class="glyphs%s">', !$row->{cell} && ' charmap';
printf '<caption>%s</caption>', $row->{set};
}
print '<tbody>';
for my $msb (0 .. (length($row->{table}) || 256) - 1 >> 4) {
- printf '<tr><th>%X', $msb + ($row->{offset} >> 4);
+ printf '<tr><th>%X', ($msb + ($row->{offset} >> 4)) * $nibsize;
for my $lsb (0 .. $#nibble) {
my $val = ( ($msb<<4) + $lsb ) * $nibsize;
if ($row->{cell}) {
- print $row->{cell}->($val);
+ if (ref $row->{cell} eq 'CODE') {
+ print $row->{cell}->($val);
+ next;
+ }
+ print range_cell($row->{cell}, $val);
next;
}