\p{AHex}+) )? \z }x) {
+ if (defined $row{endpoint}) {
+ # extend earlier range
+ my $skip = int(($row{endpoint} || $row{startpoint}) / $row{cols});
+ for ($skip + 1 .. (hex($+{start}) / $row{cols}) - 1) {
+ $row{skip}->{ $_ * $row{cols} }++;
+ }
}
- elsif ($value <= 0xBF) {
- print 'Multi-byte continuation'
- if $value == 0x80;
+ else {
+ $row{startpoint} = hex $+{start};
}
- elsif ($value <= 0xC1) {
- print ' | (Overl.)'
- if $value == 0xC0;
+ $row{endpoint} = hex($+{end} || 0);
+ }
+ else {
+ Alert("Unknown option $param for charset $input");
+ }
+ }
+
+ if ($charset->{setup}) {
+ eval { $charset->{setup}->(\%row) }
+ or Alert("Incomplete setup of $input", $@);
+ }
+ $row{endpoint} ||= 0xFF;
+
+ if (defined $row{table} or defined $row{cell}) {
+ $row{set} //= $input;
+ }
+ elsif ($row{set} = Encode::resolve_alias($charset->{set} // $input)) {
+ $row{offset} = delete $row{startpoint};
+ if ($charset->{varchar}) {
+ # array of possibly multiple characters per code point
+ $row{table} = [
+ map { Encode::decode($row{set}, pack 'C*', $_) } $row{offset} .. $row{endpoint}
+ ];
+ }
+ else {
+ # ~16x faster than decoding in loop;
+ # substr strings is twice as fast as splitting to an array
+ $row{table} = Encode::decode($row{set}, pack 'C*', $row{offset} .. $row{endpoint});
+ }
+
+ $row{endpoint} -= $row{offset};
+ $visible->{ascii}++; # assume common base
+ $row{set} = $input if $charset->{set}; # base override
+ }
+ else {
+ Alert("Encoding $input unknown");
+ return;
+ }
+
+ if (my $replace = $charset->{replace}) {
+ while (my ($offset, $sub) = each %{$replace}) {
+ $offset -= $row{offset};
+
+ if (ref $row{table} eq 'ARRAY') {
+ $row{table}->[$offset] = $sub
+ if $offset >= 0 and $offset <= $row{endpoint};
+ next;
}
- elsif ($value <= 0xDF) {
- print ' | 2-byte sequence start'
- if $value == 0xC2;
- print ' | '
- if $value == 0xD0;
+
+ my $length = length $sub;
+
+ if ($offset < 0) {
+ $offset > -$length or next; # at least one character after start
+ # trim leftmost part to start at offset
+ substr($sub, 0, -$offset) = '';
+ $length += $offset;
+ $offset = 0;
}
- elsif ($value <= 0xEF) {
- print ' | 3-byte sequence start'
- if $value == 0xE0;
+
+ if ((my $excess = $row{endpoint} - $offset - $length + 1) < 0) {
+ $excess > -$length or next;
+ # trim rightmost part to prevent overflow
+ substr($sub, $excess) = '';
+ $length += $excess;
}
- elsif ($value <= 0xF4) {
- print ' | 4-byte sequence'
- if $value == 0xF0;
+
+ substr($row{table}, $offset, $length) = $sub;
+ }
+ }
+
+ push @request, \%row;
+ $visible->{ $row{set} } = 1 if $row{table};
+}
+tabinput($_) for @tablist;
+
+my $NOCHAR = chr 0xFFFD;
+
+sub range_cell {
+ my ($info, $offset) = @_;
+ my $table = $info->{cell} or return;
+ my $def = $table->{$offset} or return;
+ my ($len, $class, $name, $title) = @{$def};
+
+ my $cols = $info->{cols};
+ my $colsize = $table->{colsize} || 1;
+ my $attr = '';
+ $len /= $colsize;
+ $name //= $len <= 2 ? 'res' : 'reserved';
+
+ if (my $part = ($offset/$colsize - $info->{startpoint}) % $cols) {
+ # continued row
+ my $rest = $cols - $part; # remaining
+ $rest = $len if $len < $rest; #TODO: optimise
+ if ($len -= $rest) {
+ # continued on new row
+ my @next = ($len * $colsize, "$class joinu");
+ my $separate = $cols - $len > $rest; # columns not on next row
+ if ($len > $rest) {
+ # minority remains
+ push @next, $name, $title;
+ $title ||= $name;
+ $name = $separate && 'â¦';
}
- elsif ($value <= 0xF7) {
- print ' | (Overflow)'
- if $value == 0xF5;
+ else {
+ # minority on next row
+ push @next, $separate && '"', $title || $name;
}
- elsif ($value <= 0xFB) {
- print ' | 5-byte'
- if $value == 0xF8;
+ $table->{$offset + $colsize*$rest} //= \@next;
+ $class .= ' joind';
+ }
+ $len = $rest;
+ }
+ elsif (my $rows = int($len / $cols)) {
+ # multiple full rows
+ my $rowsize = $colsize * $cols;
+ if ($len -= $rows * $cols) {
+ # partial row remains
+ $table->{$offset + $rowsize * $rows} //= [$len*$colsize, "$class joinu", '', $title];
+ $class .= ' joind';
+ }
+
+ unless ($info->{realsize}) {
+ # coalesce multiple rows
+ while ($rows > 3) {
+ $info->{skip}->{$offset += $rowsize}++;
+ $rows--;
}
- elsif ($value <= 0xFD) {
- print ' | 6-byte'
- if $value == 0xFC;
+ if ($rows > 2) {
+ $info->{skip}->{$offset += $rowsize} = 0;
}
- elsif ($value <= 0xFF) {
- print ' | Invalid'
- if $value == 0xFE;
+ }
+
+ $attr .= sprintf ' rowspan=%d', $rows;
+ $len = $cols;
+ }
+
+ $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 " | $name\n";
+}
+
+for my $row (@request) {
+ my $cols = $row->{cols};
+ my $colsize = $row->{cell} && $row->{cell}->{colsize} || 1;
+ my $coldigits = ceil(log($colsize * $cols) / log(16)); # uniform length of hexadecimal header
+ my $rowdiv = 16 ** $coldigits; # row divide for column digits
+ $rowdiv = 1 if $rowdiv != $cols * $colsize; # divide only if all columns are matched
+ my $offset = $row->{startpoint} * $colsize || 0;
+
+ printf '', !$row->{cell} && ' charmap';
+ my $title = $row->{set};
+ $title .= " " for $row->{parent} || ();
+ $title .= " " for $row->{note} || ();
+ printf '%s', $title;
+ print '' x ($cols + 1);
+ for my $section (qw{thead}) {
+ print "<$section>", $rowdiv == 1 ? '+' : 'â±';
+ printf ' | %0*X', $coldigits, $_ * $colsize for 0 .. $cols - 1;
+ print "\n";
+ }
+
+ print ' | ';
+ while ($offset <= $row->{endpoint} * $colsize) {
+ if ($row->{skip}->{$offset + $row->{offset}}) {
+ $offset += $cols * $colsize;
+ next;
+ }
+
+ print '';
+ if (defined $row->{skip}->{$offset + $row->{offset}}) {
+ print 'â®';
+ }
+ else {
+ if (my $rowmod = $offset % $rowdiv) {
+ # offset in column units
+ printf '+%X', $rowmod;
}
else {
- print "\n".' | ?';
+ # divided row offset
+ printf '%X', ($offset + $row->{offset}) / $rowdiv;
}
}
- print "\n";
+ say '';
+
+ for (1 .. $cols) {
+ if ($row->{cell}) {
+ print range_cell($row, $offset);
+ next;
+ }
+
+ my $cp = $offset + $row->{offset};
+ my $glyph = ref $row->{table} eq 'ARRAY' ? $row->{table}->[$offset] :
+ substr $row->{table}, $offset, 1;
+ my ($cell, $name, $class) = !defined $glyph || $glyph eq $NOCHAR ? () :
+ $glyphs->glyph_html($glyph);
+
+ if ($mode) {
+ state $visible = {};
+ $class = (
+ $cp == ord $glyph ? 'l4' :
+ $row->{parent} && $glyph eq
+ Encode::decode($row->{parent}, pack 'C', $cp) ? 'l3' :
+ !defined $cell ? undef :
+ $visible->{$glyph} ? 'l2' :
+ 'l1'
+ );
+ $visible->{$glyph}++;
+ }
+
+ printf ' | %s', $class, $cell) : '>';
+ }
+ continue {
+ $offset += $colsize;
+ }
}
- print " |
---|
\n";
+ say ' |