Table data could not be read: %s.
\n", $@ || $!; - @nibble = (map { $_.0, $_.8 } 0 .. 7); - $nibsize = 8; +sub tabinput { + # generate character table(s) + my $input = shift or return; + + state $ALIAS = { + default => [qw( unicode+0-192 utf-8 iso-8859-1 cp1252+128-159 iso-8859-15+160-191 cp437 cp850+128 )], + us => [qw( cp437 cp863+128 AdobeStandardEncoding gsm0338+0-127 )], + ebcdic => [qw( cp37 cp500 cp875 cp1026 cp1047 posix-bc )], + westeur => [qw( iso-8859-1 iso-8859-15+160-191 cp1252+128-159 iso-8859-14+160 cp850+128 MacRoman+128 nextstep+128 hp-roman8+160 )], + centeur => [qw( iso-8859-2 iso-8859-16+160 cp1250+128 cp852+128 MacCentralEurRoman+128 MacCroatian+128 MacRomanian+128 )], # MacRumanian only for DB + turkish => [qw( iso-8859-3 iso-8859-9+128 cp857+128 cp1254+128 MacTurkish+128 )], + baltic => [qw( iso-8859-4 iso-8859-13+160 cp775+128 cp1257+128 )], + nordic => [qw( iso-8859-10 cp865+128 cp861+160-191 MacIcelandic+128 MacSami+160 )], + cyrillic => [qw( koi8-f koi8-r+128-192 koi8-u+160-192 iso-8859-5+128 cp1251+128 MacCyrillic+128 cp855+128 cp866+128 )], # MacUkrainian is broken + arabic => [qw( iso-8859-6 cp1006+160 cp864+128 cp1256+128 MacArabic )], # MacFarsi same as MacArabic? + greek => [qw( iso-8859-7 cp1253+128 MacGreek+128 cp737+128 cp869+128 )], + hebrew => [qw( iso-8859-8 cp1255+128 MacHebrew+128 cp862+128 )], + thai => [qw( iso-8859-11 cp874+128-159 MacThai+128 )], + vietnamese => [qw( viscii cp1258 MacVietnamese )], + symbol => [qw( symbol dingbats MacDingbats AdobeZdingbat AdobeSymbol )], + # iso-code shorthand + 1 => 'westeur', + 2 => 'centeur', + 3 => 'turkish', + 4 => 'baltic', + 5 => 'cyrillic', + 6 => 'arabic', + 7 => 'greek', + 8 => 'hebrew', + 9 => 'turkish', + 10 => 'nordic', + 11 => 'thai', + }; + if (my $follow = $ALIAS->{$input}) { + return map { tabinput($_) } ref $follow ? @{$follow} : $follow; + } + + my %row = (offset => 0, cols => 16); + my $endpoint = 255; + my $params = $input =~ s/[+](.*)\z// ? $1 : undef; + + if (defined $params and $params =~ m/^ (\d+) (-\d+)? /x) { + $row{offset} = $1; + $endpoint = -$2 if $2; + } + if ($row{offset}) { + $row{setnote} = 'over cp437' if $input eq 'cp850'; + $row{setnote} = 'over iso-8859-1' if $input =~ /^iso-8859-|^cp125/; + } + + if ($input =~ /^U([0-9a-f]+)(?:-([0-9a-f]+))?/) { + my $start = hex($1) << ($2 ? 4 : 8); + my $end = $2 ? hex($2) << 4 : $start + 240; + $row{table} = join '', map { chr } $start .. $end+15; + utf8::upgrade($row{table}); # prevent latin1 output + $row{set} = sprintf 'Unicode block U+%02Xxx', $start >> 8; + } + elsif ($input eq 'U') { + $row{table} = ' ' x 1024; + $row{set} = 'Unicode planes'; + $row{cell} = do 'charset-ucplanes.inc.pl' + or Alert('Table data could not be read', $@ || $!); + $row{cols} *= 2; + } + elsif ($row{set} = Encode::resolve_alias($input)) { + if ($row{set} eq 'Internal') { + $row{table} = ' ' x ($endpoint < 255 ? 640 : 8192); + $row{set} = 'Unicode BMP'; + $row{cell} = do 'charset-unicode.inc.pl' + or Alert('Table data could not be read', $@ || $!); } - elsif ($row{set} = resolve_alias($input)) { - if ($row{set} eq 'Internal') { - $row{table} = ' ' x ($endpoint < 255 ? 640 : 8192); - $row{set} = 'Unicode BMP'; - $row{cell} = do 'charset-unicode.inc.pl' - or printf "Table data could not be read: %s.
\n", $@ || $!; - } - elsif ($row{set} eq 'utf-8-strict') { - $row{table} = undef; - $row{set} = 'UTF-8'; - $row{cell} = do 'charset-utf8.inc.pl' - or printf "Table data could not be read: %s.
\n", $@ || $!; - } - else { - $row{table} = decode($row{set}, pack 'C*', $row{offset} .. $endpoint); - } + elsif ($row{set} eq 'utf-8-strict') { + $row{table} = undef; + $row{set} = 'UTF-8'; + $row{cell} = do 'charset-utf8.inc.pl' + or Alert('Table data could not be read', $@ || $!); } else { - say "Encoding $input
unknown
$inputunknown"); + return; } -} map { defined $ALIAS{$_} ? @{ $ALIAS{$_} } : $_ } - $ENV{PATH_INFO} =~ /\w/ ? split(m{[/+\s]}, $ENV{PATH_INFO}) : 'default'; -my $NOCHAR = chr 0xFFFD; - -for my $cp437 (grep {$request[$_]->{set} eq 'cp437'} 0 .. $#request) { - substr($request[$cp437]->{table}, 237, 1) = pack 'U*', 0x3D5; # phi sign - substr($request[$cp437]->{table}, 0, 32) = pack 'U*', map {hex} qw( - 2007 263A 263B 2665 2666 2663 2660 2022 25D8 25CB 25D9 2642 2640 266A 266B 263C - 25BA 25C4 2195 203C 00B6 00A7 25AC 21A8 2191 2193 2192 2190 221F 2194 25B2 25BC - ); + return \%row; } +my @request = map { tabinput($_) } @tablist; + +my $NOCHAR = chr 0xFFFD; sub range_cell { - my ($table, $offset) = @_; + my ($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 /= $nibsize; + $len /= $colsize; $name //= $len <= 2 ? 'res' : 'reserved'; - if (my $part = $offset/$nibsize % 16) { + if (my $part = $offset/$colsize % $cols) { # continued row - my $cols = 16 - $part; # remaining - $cols = $len if $len < $cols; #TODO: optimise - if ($len -= $cols) { + my $rest = $cols - $part; # remaining + $rest = $len if $len < $rest; #TODO: optimise + if ($len -= $rest) { # continued on new row - $table->{$offset + $nibsize*$cols} //= [$len*$nibsize, "$class joinu", $name, $title]; - $name = ''; + my @next = ($len * $colsize, "$class joinu"); + if ($len > $rest) { + # minority remains + push @next, $name, $title; + $title ||= $name; + $name = ''; + } + else { + # minority on next row + push @next, '"', $title || $name; + } + $table->{$offset + $colsize*$rest} //= \@next; $class .= ' joind'; } - $len = $cols; + $len = $rest; } - elsif (my $rows = $len >> 4) { + elsif (my $rows = int($len / $cols)) { # multiple full rows - if ($len -= $rows << 4) { + if ($len -= $rows * $cols) { # partial row remains - $table->{$offset + $nibsize*$rows * 16} //= [$len*$nibsize, "$class joinu", '', $title]; + $table->{$offset + $colsize*$rows * $cols} //= [$len*$colsize, "$class joinu", '', $title]; $class .= ' joind'; } $attr .= sprintf ' rowspan=%d', $rows; - $len = 16; + $len = $cols; } $attr .= sprintf ' colspan=%d', $len unless $len == 1; @@ -148,31 +181,44 @@ sub range_cell { } 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 = 0; + my $endpoint = $offset + (length($row->{table}) || 256) * $colsize; + printf '
| â±"; - print ' | ', $_ for @nibble; + print "<$section> |
|---|---|
| ", $rowdiv == 1 ? '+' : 'â±'; + printf ' | %0*X', $coldigits, $_ * $colsize for 0 .. $cols - 1; print "\n"; } print ' |
| %X', ($msb + ($row->{offset} >> 4)) * $nibsize; - for my $lsb (0 .. $#nibble) { - my $val = ( ($msb<<4) + $lsb ) * $nibsize; + while ($offset < $endpoint - 1) { + print ' | |
| '; + { + if (my $rowmod = $offset % $rowdiv) { + # offset in column units + printf '+%X', $rowmod; + } + else { + # divided row offset + printf '%X', ($offset + $row->{offset}) / $rowdiv; + } + } + for (1 .. $cols) { if ($row->{cell}) { - if (ref $row->{cell} eq 'CODE') { - print $row->{cell}->($val); - next; - } - print range_cell($row->{cell}, $val); + print range_cell($row, $offset); next; } - my $glyph = substr $row->{table}, $val, 1; + my $glyph = substr $row->{table}, $offset, 1; if ($glyph eq $NOCHAR) { print ' | '; next; @@ -180,6 +226,9 @@ for my $row (@request) { print "\n".$glyphs->glyph_cell($glyph); } + continue { + $offset += $colsize; + } print "\n"; } say ' |