X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/81aefba6ac586eccbe18b4e90efc175e34fff5ad..1526acc93e4a99f79545a62d5700d9020fe59b5b:/charset.plp diff --git a/charset.plp b/charset.plp index 402d839..309139e 100644 --- a/charset.plp +++ b/charset.plp @@ -15,112 +15,306 @@ Html({ data => [qw'charset-unicode.inc.pl charset-utf8.inc.pl'], }); +my @tablist = split /[^\w-]+/, $Request || 'default'; + :>

Character encoding

<: +use POSIX qw( ceil ); use Shiar_Sheet::FormatChar; my $glyphs = Shiar_Sheet::FormatChar->new; -my @nibble = (0..9, 'A'..'F'); -my $nibsize = 1; - -use Encode qw(decode resolve_alias); -# generate character table(s) -# (~16x faster than decoding in loop; -# substr strings is twice as fast as splitting to an array) -my %ALIAS = ( -# default => [qw(unicode utf-8 iso-8859-1 cp437 -cp1252- --iso-8859-15- -koi8-f)], - default => [qw(unicode- utf-8 iso-8859-1 -cp1252- --iso-8859-15- cp437 -cp850)], - 0 => [qw(cp437 cp863)], - 1 => [qw(iso-8859-1 cp1252 MacRoman cp850)], - 2 => [qw(iso-8859-2 cp1250 cp852 MacCentralEurRoman MacCroatian MacRumanian)], - 5 => [qw(koi8-f iso-8859-5 cp1251 MacCyrillic cp855 cp866)], - 7 => [qw(iso-8859-7 cp1253 MacGreek cp737 cp869)], - 8 => [qw(iso-8859-8 cp1255 MacHebrew cp862)], -); -my @request = map { - if (my $input = $_) { - my %row = (offset => 0); - my $endpoint = 255; - if ($input =~ s/^--//) { - $row{offset} = $endpoint > 160 ? 160 : 48; +my @request; + +sub tabinput { + # generate character table(s) + my $input = shift or return; + + state $ALIAS = { + default => [qw( unicode+0-192 utf-8 iso-8859-1 iso-8859-15 cp1252 cp437 cp850 )], + us => [qw( cp437 cp863 AdobeStandardEncoding gsm0338 )], + ebcdic => [qw( cp37 cp500 cp875 cp1026 cp1047 posix-bc )], + iso => [map {"iso-8859-$_"} 1 .. 11, 13 .. 16], + dos => [qw( cp437 cp865 cp861 cp860 cp863 cp850 cp857 cp852 cp775 + cp737 cp869 cp866 cp855 cp862 cp864 )], + aix => [qw( cp1006 )], + win => [qw( cp1252 cp1250 cp1254 cp1257 cp1258 cp1253 cp1251 cp1255 cp1256 cp874 )], + + westeur => [qw( iso-8859-1 iso-8859-15 cp1252 iso-8859-14 cp850 hp-roman8 nextstep MacRoman )], + centeur => [qw( iso-8859-2 iso-8859-16 cp1250 cp852 MacRomanian MacCroatian MacCentralEurRoman )], # MacRumanian only for DB + turkish => [qw( iso-8859-9 iso-8859-3 cp1254 cp857 MacTurkish )], + baltic => [qw( iso-8859-4 iso-8859-13 cp1257 cp775 )], + nordic => [qw( iso-8859-10 cp865 cp861 MacIcelandic MacSami )], + cyrillic => [qw( koi8-r koi8-u koi8-f iso-8859-5 cp1251 MacCyrillic cp866 cp855 )], # MacUkrainian is broken + arabic => [qw( iso-8859-6 cp1006 cp864 cp1256 MacArabic )], # MacFarsi same as MacArabic? + greek => [qw( iso-8859-7 cp1253 MacGreek cp737 cp869 )], + hebrew => [qw( iso-8859-8 cp1255 MacHebrew cp862 )], + thai => [qw( iso-8859-11 cp874 MacThai )], + 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}) { + tabinput($_) for ref $follow ? @{$follow} : $follow; + return; + } + + state $visible = {}; # all present tables + my %row = (offset => 0, cols => 16); + my $endpoint = 255; + my $params = $input =~ s/[+](.*)\z// ? $1 : undef; + + if (not defined $params) { + use List::Util qw( first pairfirst pairs ); + + state $INHERIT = { + 'cp437' => ['cp850' => 0], # ascii range overridden later + 'gsm0338' => ['ascii' => '0-127'], + + 'iso-8859-2' => ['iso-8859-1' => '160'], + 'iso-8859-3' => ['iso-8859-1' => '160'], + 'iso-8859-4' => ['iso-8859-2' => '160'], + 'iso-8859-5' => ['iso-8859-1' => '160'], + 'iso-8859-6' => ['iso-8859-1' => '160'], + 'iso-8859-7' => ['iso-8859-1' => '160'], + 'iso-8859-8' => ['iso-8859-1' => '160'], + 'iso-8859-9' => ['iso-8859-1' => '208'], + 'iso-8859-10' => ['iso-8859-4' => '160'], + 'iso-8859-11' => ['iso-8859-1' => '160'], + 'iso-8859-13' => ['iso-8859-4' => '160'], + 'iso-8859-14' => ['iso-8859-1' => '160'], + 'iso-8859-15' => ['iso-8859-1' => '160-191'], + 'iso-8859-16' => ['iso-8859-2' => '160'], + 'hp-roman8' => ['iso-8859-1' => '160'], + + 'cp1252' => ['iso-8859-1' => '128-159'], + 'cp1250' => ['iso-8859-2' => '128-191'], + 'cp1254' => ['iso-8859-9' => '128-159'], + 'cp874' => ['iso-8859-11' => '128-159'], # windows-874 actually cp1162 + 'cp1257' => ['iso-8859-13' => '128'], + 'cp1251' => ['cp1252' => '128'], + 'cp1253' => ['cp1252' => '128'], + 'cp1255' => ['iso-8859-8' => '128-223', 'cp1252' => '128'], + 'cp1256' => ['cp1252' => '128'], + + 'cp850' => ['cp437' => '144'], + 'cp860' => ['cp437' => '128-175'], + 'cp861' => ['cp865' => '128-175'], + 'cp863' => ['cp437' => '128-175'], + 'cp865' => ['cp437' => '144-175'], + 'cp852' => ['cp850' => '128', 'cp437' => '128'], + 'cp857' => ['cp850' => '128-239', 'cp437' => '128'], + 'cp775' => ['cp850' => '128'], # partial cp437 + 'cp866' => ['cp437' => '128'], + 'cp855' => ['cp437' => '128'], + 'cp1006' => ['cp437' => '128'], + 'cp737' => ['cp437' => '128'], + 'cp869' => ['cp437' => '128'], + 'cp862' => ['cp437' => '128'], + 'cp864' => ['cp437' => '128'], + + 'koi8-u' => ['koi8-r' => 128], + 'koi8-f' => ['koi8-u' => 128], + + 'MacRomanian' => ['MacRoman' => '160'], + 'MacCroatian' => ['MacRoman' => '160'], + 'MacCentralEurRoman' => ['MacRoman' => '128'], + 'MacTurkish' => ['MacRoman' => '208-223'], # F5 is unassigned + 'MacCyrillic' => ['MacRoman' => '128'], + 'MacHebrew' => ['MacRoman' => '128'], + }; + + my @parents = @{ $INHERIT->{$input} || [] }; + + if (my ($parent, $part) = pairfirst { $visible->{$a} } @parents) { + $row{parent} = $parent; + $params = $part; } - elsif ($input =~ s/^-//) { - $row{offset} = $endpoint > 128 ? 128 : 32; + elsif ($visible->{ascii}) { + $row{parent} = $parents[0] || 'ascii'; + $params = $parents[1] || 128; + $params = 128 if $params >= 128; # ascii offset at most } - if ($input =~ s/-$//) { - $endpoint = $row{offset} ? $row{offset} < 160 ? 159 : 191 : 127; + elsif (@parents) { + $row{parent} = $parents[0]; } + } + + if (defined $params and $params =~ m/^ (\d+) (-\d+)? /x) { + $row{offset} = $1; + $endpoint = -$2 if $2; + } - if ($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', $start >> 8; + if ($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{len} = length $row{table}; + $row{set} = sprintf 'Unicode block U+%02Xxx', $start >> 8; + } + elsif ($input eq 'U') { + $row{len} = 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{len} = $endpoint < 255 ? 640 : 8192; + $row{set} = 'Unicode BMP'; + $row{cell} = do 'charset-unicode.inc.pl' + or Alert('Table data could not be read', $@ || $!); } - elsif ($input eq 'U') { - $row{table} = ' ' x 1024; - $row{set} = 'Unicode planes'; - $row{cell} = do 'charset-ucplanes.inc.pl'; - @nibble = (map { $_.0, $_.8 } 0 .. 7); - $nibsize = 8; + elsif ($row{set} eq 'utf-8-strict') { + $row{len} = 256; + $row{set} = 'UTF-8'; + $row{cell} = do 'charset-utf8.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'; - $row{cell} = do 'charset-unicode.inc.pl'; - } - elsif ($row{set} eq 'utf-8-strict') { - $row{table} = undef; - $row{set} = 'UTF-8'; - $row{cell} = do 'charset-utf8.inc.pl'; + else { + if ($row{set} eq 'MacHebrew') { + # array of possibly multiple characters per code point + $row{table} = [ + map { Encode::decode($row{set}, pack 'C*', $_) } $row{offset} .. $endpoint + ]; } else { - $row{table} = decode($row{set}, pack 'C*', $row{offset} .. $endpoint); + # ~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} .. $endpoint); } + $row{len} = $endpoint - $row{offset}; + + if ($row{set} eq 'cp437' and !$row{offset}) { + substr($row{table}, 237, 1) = pack 'U*', 0x3D5; # phi sign + substr($row{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 + ); + } + + $visible->{ascii} = # assume common base + $visible->{ $row{set} } = 1; } - else { - print "

Encoding $input unknown

\n"; - } - \%row; } else { - (); + Alert("Encoding $input unknown"); + return; } -} map { defined $ALIAS{$_} ? @{ $ALIAS{$_} } : $_ } - $ENV{PATH_INFO} =~ /\w/ ? split(m{[/+\s]}, $ENV{PATH_INFO}) : 'default'; + push @request, \%row; +} +tabinput($_) for @tablist; + 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[$cp437]->{table}, 0, 32) = pack 'U*', map {hex} qw( - 2007 263A 263B 2665 2666 2663 2660 2022 25D8 25CB 25D9 2642 2640 266A 266B 263C - 25BA 25C4 2195 203C 00B6 00A7 25AC 21A8 2191 2193 2192 2190 221F 2194 25B2 25BC - ); +sub range_cell { + my ($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 % $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"); + 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 = $rest; + } + elsif (my $rows = int($len / $cols)) { + # multiple full rows + if ($len -= $rows * $cols) { + # partial row remains + $table->{$offset + $colsize*$rows * $cols} //= [$len*$colsize, "$class joinu", '', $title]; + $class .= ' joind'; + } + $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"; } 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 + $row->{len} * $colsize; + printf '
', !$row->{cell} && ' charmap'; - printf '', $row->{set}; - print '' x 17; + my $title = $row->{set}; + $title .= " " + for grep { $_ ne 'iso-8859-1' } $row->{parent} // (); + printf '', $title; + print '' x ($cols + 1); for my $section (qw{thead}) { - print "<$section>'; - for my $msb (0 .. (length($row->{table}) || 256) - 1 >> 4) { - printf '
%s%s
↱"; - print '', $_ for @nibble; + print "<$section>
", $rowdiv == 1 ? '+' : '↱'; + printf '%0*X', $coldigits, $_ * $colsize for 0 .. $cols - 1; print "\n"; } print '
%X', $msb + ($row->{offset} >> 4); - 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}) { - print $row->{cell}->($val); + print range_cell($row, $offset); next; } - my $glyph = substr $row->{table}, $val, 1; + my $glyph = ref $row->{table} eq 'ARRAY' ? $row->{table}->[$offset] : + substr $row->{table}, $offset, 1; if ($glyph eq $NOCHAR) { print ''; next; @@ -128,9 +322,12 @@ for my $row (@request) { print "\n".$glyphs->glyph_cell($glyph); } + continue { + $offset += $colsize; + } print "\n"; } - print "
\n"; + say ''; } :>