+<: +if ($tablist[0] eq 'default') { + say "Overview of Unicode allocation and common latin code pages."; + say "Compare alternate charsets:"; +} +else { + say "Charset comparison:"; +} -
-$paramsto multiple charsets.", + ); + tabinput($_) for ref $charset ? @{$charset} : $charset; + return; + } + + state $visible = {'' => 1}; # all present tables + my %row = (offset => 0, cols => 16); + + if (not defined $params) { + my @parents = @{ $charset->{inherit} || [] }; + + if (my ($parent, $part) = pairfirst { defined $visible->{$a} } @parents) { + $row{parent} = $parent; + $params = $part; + $params = 80 unless $visible->{$parent} + or ($input eq 'MacCroatian' and defined $visible->{MacRomanian}); + } + elsif (defined $visible->{ascii}) { + $row{parent} = $parents[0]; + $params = $parents[1] // 80; + $params = 80 if hex $params >= 0x80; # ascii offset at most + } + elsif (@parents) { + $row{parent} = $parents[0]; + $params = $parents[1] if hex $parents[1] == 0; # apply ascii end + } + $visible->{$_} //= 0 for $row{parent} || (); + } + + for my $param (split /[+]+/, $params // '') { + if ($param eq 'realsize') { + $row{realsize}++; + } + elsif ($param =~ m{ \A cols = (\d+) \z }x) { + $row{cols} = $1; + } + elsif ($param =~ m{ \A (?
$paramfor 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($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 + } + else { + Alert("Encoding
$inputunknown"); + 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; + } -for my $cp437 (grep {$request[$_] eq 'cp437'} 0 .. $#request) { - substr($tables[$cp437], 237, 1) = pack 'U*', 0x3D5; # phi sign - substr($tables[$cp437], 0, 32) = pack 'U*', map {hex} qw( - 2007 263A 263B 2665 2666 2663 2660 2022 25D8 25CB 25D9 2642 2640 266A 266B 263C - 25BA 25C4 2195 203C 00B6 00A7 25AC 21A8 2191 2193 2192 2190 221F 2194 25B2 25BC - ); + 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; + } + + if ((my $excess = $row{endpoint} - $offset - $length + 1) < 0) { + $excess > -$length or next; + # trim rightmost part to prevent overflow + substr($sub, $excess) = ''; + $length += $excess; + } + + substr($row{table}, $offset, $length) = $sub; + } + } + + push @request, \%row; + $visible->{ $row{set} } = 1 if $row{table}; } +tabinput($_) for @tablist; + +my $NOCHAR = chr 0xFFFD; -sub quote { - local $_ = shift; - s/"/"/g; - s//>/g; - return $_; +sub range_cell { + my ($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¦'; + } + else { + # minority on next row + push @next, $separate && '"', $title || $name; + } + $table->{$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}++; + $rows--; + } + if ($rows > 2) { + $info->{skip}->{$offset += $rowsize} = 0; + } + } + + $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 "
| â³"; - print ' | ', $_ for @nibble; - print " | \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 '
|
|---|
| unicode + | inherited + | existing + | original + | unassigned +<: } else { :> + | control + | whitespace + | diacritic
| punctuation
| symbol
| numeric + | greek
| aramaic
| syllabic
| alphabetic + |
| unicode 7.0 + | proposed + | deprecated + | unassigned + | invalid +<: } :> |