X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/eea96a232c342a6e73c9a8acdc8ee9e8218fe2ae..2a99bcdadec88d7483903e2c8420ad3e78fcb805:/charset.plp diff --git a/charset.plp b/charset.plp index 080e208..d25f23c 100644 --- a/charset.plp +++ b/charset.plp @@ -12,104 +12,343 @@ Html({ reference common overview table '], stylesheet => [qw'light'], - data => [qw'charset-unicode.inc.pl charset-utf8.inc.pl'], + data => [qw'charset-unicode.inc.pl charset-ucplanes.inc.pl charset-utf8.inc.pl'], }); +my @tablist = split m{/+}, $Request || 'default'; + +use List::Util qw( first pairmap pairfirst pairs ); + :> -

Character encoding

+

Character encodings

+

<: +if ($tablist[0] eq 'default') { + say "Overview of Unicode allocation and common latin code pages."; + say "Compare alternate charsets:"; +} +else { + say "Charset comparison:"; +} + +sub optionlink { + my ($title, $href, $selected) = @_; + return sprintf( + $selected ? '%s' : '%s', + EscapeHTML($title), $href + ); +} + +print join " •\n", ( + map { + join " ·\n", pairmap { + optionlink($b || ucfirst $a, '/charset'.($a && "/$a?compare"), $a eq $Request); + } @{$_} + } + [ + iso => 'ISO', + win => 'Windows', + dos => 'DOS', + mac => 'Apple', + ebcdic => 'EBCDIC', + $tablist[0] eq 'default' ? () : ('' => 'common'), + ], + [ + westeur => 'West', + centeur => 'Central', + norteur => 'North European', + turkish => 0, + greek => 0, + cyrillic => 0, + hebrew => 0, + ], +); +:>. +

+ +<: +use POSIX qw( ceil ); use Shiar_Sheet::FormatChar; my $glyphs = Shiar_Sheet::FormatChar->new; -my $cols = 16; # columns - -# 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} = $endpoint > 160 ? 160 : 48; - } - elsif ($input =~ s/^-//) { - $row{offset} = $endpoint > 128 ? 128 : 32; - } - if ($input =~ s/-$//) { - $endpoint = $row{offset} ? $row{offset} < 160 ? 159 : 191 : 127; - } - if ($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', $@ || $!); - $cols *= 2; - } - elsif ($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} 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', $@ || $!); +my @request; + +sub tabinput { + # generate character table(s) + my $input = shift or return; + + state $ALIAS = { + default => [qw( u+0-639 utf-8+realsize iso-8859-1 iso-8859-15 cp1252 cp437 cp850 )], + unicode => [qw( uu+cols=32+realsize u+0-4095 u+4096-6319 u+6320-8191 )], + us => [qw( cp437 cp863 gsm0338 AdobeStandardEncoding )], + ebcdic => [qw( cp37 cp500 cp1047 posix-bc cp1026 cp875 )], + iso => [map {"iso-8859-$_"} 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 )], + mac => [qw( MacRoman MacRomanian MacRumanian MacCroatian MacCentralEurRoman MacTurkish MacIcelandic MacSami + MacGreek MacCyrillic MacHebrew MacArabic MacFarsi MacThai )], + + # languages + 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 )], + norteur => [qw( baltic nordic )], + 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 + U4 U2DE-2DF UA64-A69 U50-52 )], # MacUkrainian is broken + arabic => [qw( iso-8859-6 cp1256 MacArabic cp864 cp1006 MacFarsi + U6 U8A-8F+0-31+64 U75-77 )], + greek => [qw( iso-8859-7 cp1253 MacGreek cp737 cp869 U37-3F U1F )], + hebrew => [qw( iso-8859-8 cp1255 MacHebrew cp862 U59-5F )], + thai => [qw( iso-8859-11 cp874 MacThai )], + vietnamese => [qw( viscii cp1258 MacVietnamese )], + symbols => [qw( symbol dingbats MacDingbats )], + + # 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 = {'' => 1}; # all present tables + my %row = (offset => 0, cols => 16); + my $params = $input =~ s/[+](.*)\z// ? $1 : undef; + + if (not defined $params) { + state $INHERIT = { + 'cp437' => ['cp850' => 0, 'ascii' => '0-31+128'], # ascii range overridden later + 'gsm0338' => ['ascii' => '0-127'], + 'dingbats' => ['' => '32-127+160'], + 'MacDingbats' => ['dingbats' => '128-159'], + 'AdobeZdingbat'=> ['MacDingbats' => '128-159'], # should be identical but maps to private use + 'symbol' => ['' => '32-127+160'], + 'AdobeSymbol' => ['symbol' => '32-127+160', '' => '32-127+160'], # minor differences, irrelevant except for different '€' + + 'iso-8859-2' => ['iso-8859-1' => '160'], + 'iso-8859-3' => ['iso-8859-1' => '160'], #TODO: also apply to iso-8859-9 + 'iso-8859-4' => ['iso-8859-2' => '160'], + 'iso-8859-5' => ['iso-8859-1' => '160'], + 'iso-8859-6' => ['cp1256' => '128', 'iso-8859-1' => '160'], + 'iso-8859-7' => ['iso-8859-1' => '160'], + 'iso-8859-8' => ['iso-8859-1' => '160'], + 'iso-8859-9' => ['iso-8859-1' => '208-223+240'], + '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', 'cp1252' => '128'], + 'cp1254' => ['iso-8859-9' => '128-159', 'cp1252' => '128-159+208'], + 'cp874' => ['iso-8859-11' => '128-159', 'cp1252' => '128'], # windows-874 actually cp1162 + 'cp1257' => ['iso-8859-13' => '128-159+255', 'cp1252' => '128'], + 'cp1251' => ['cp1252' => '128'], + 'cp1253' => ['cp1252' => '128'], + 'cp1255' => ['iso-8859-8' => '128-223', 'cp1252' => '128'], + 'cp1256' => ['cp1252' => '128'], + 'cp1258' => ['cp1252' => '128-159+192'], + + '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' => '128-175+208-239', 'cp437' => '128'], + 'cp775' => ['cp850' => '128'], # partial cp437 + 'cp866' => ['cp437' => '128-175+224'], + 'cp855' => ['cp437' => '128'], + 'cp1006' => ['iso-8859-6' => '160', 'cp437' => '128'], + 'cp737' => ['cp437' => '128-175+224'], + 'cp869' => ['cp437' => '128'], + 'cp862' => ['cp437' => '128-159'], + 'cp864' => ['MacArabic' => '128', 'iso-8859-6' => '128', 'cp437' => '128'], #TODO: compare form variants + + 'koi8-u' => ['koi8-r' => '144-191'], + 'koi8-f' => ['koi8-u' => '144-191'], + + 'MacRomanian' => ['MacRoman' => '160-191+208-223'], + 'MacRumanian' => ['MacRomanian' => '160-191+208-223', 'MacRoman' => '160-191+208-223'], + 'MacCroatian' => ['MacRoman' => '160'], + 'MacCentralEurRoman' => ['MacRoman' => '128'], + 'MacIcelandic'=> ['MacRoman' => '160-175+208-239'], + 'MacTurkish' => ['MacRoman' => '208-223'], # F5 is unassigned + 'MacSami' => ['MacIcelandic' => '144-191+208-223+240', 'MacRoman' => '144'], + 'MacGreek' => ['MacRoman' => '128'], + 'MacCyrillic' => ['MacRoman' => '128'], + 'MacHebrew' => ['iso-8859-8' => '128', 'MacRoman' => '128-143+160'], # partial ascii + 'MacArabic' => ['iso-8859-6' => '128', 'cp864' => '128', 'MacRoman' => '128'], #TODO: multiple parents + 'MacFarsi' => ['MacArabic' => '176-191', 'MacRoman' => '128'], + + 'cp37' => ['posix-bc' => '0'], + 'posix-bc' => ['cp1047' => '64'], + 'cp500' => ['cp37' => '64-95+176-191'], + 'cp1047' => ['cp37' => '16-47+80-95+160-191'], + 'cp1026' => ['cp37' => '64'], + 'cp875' => ['cp37' => '48'], + + }; + + my @parents = @{ $INHERIT->{$input} || [] }; + + if (my ($parent, $part) = pairfirst { defined $visible->{$a} } @parents) { + $row{parent} = $parent; + $params = $part; + $params = 128 unless $visible->{$parent} + or ($input eq 'MacCroatian' and defined $visible->{MacRomanian}); + } + elsif (defined $visible->{ascii}) { + $row{parent} = $parents[0]; + $params = $parents[1] // 128; + $params = 128 if $params >= 128; # ascii offset at most + } + elsif (@parents) { + $row{parent} = $parents[0]; + $params = $parents[1] if $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 (? \d+) (?: [-] (? \d+) )? \z }x) { + if (defined $row{endpoint}) { + # extend earlier range + my $skip = int(($row{endpoint} || $row{offset}) / $row{cols}); + for ($skip + 1 .. ($+{offset} / $row{cols}) - 1) { + $row{skip}->{ $_ * $row{cols} - $row{offset} }++; + } } else { - $row{table} = Encode::decode($row{set}, pack 'C*', $row{offset} .. $endpoint); + $row{offset} = $+{offset}; } + $row{endpoint} = $+{endpoint} || 0; } else { - Alert("Encoding $input unknown"); + Alert("Unknown option $param for charset $input"); } - $row{set} ? \%row : (); } - else { - (); + + if ($input =~ m{ \A u ([0-9a-f]+) (?:-([0-9a-f]+))? \z }ix) { + my $start = hex($1) << ($2 ? 4 : 8); + my $end = $2 ? (hex($2) << 4) + $row{cols} - 1 : $start + 255; + $row{table} = join '', map { chr } $start .. $end; + utf8::upgrade($row{table}); # prevent latin1 output + $row{endpoint} = $end - $start; + $row{set} = sprintf 'Unicode block U+%02Xxx', $start >> 8; + $row{offset} = $start % 256; } -} map { defined $ALIAS{$_} ? @{ $ALIAS{$_} } : $_ } - $Request =~ /\w/ ? split(m{[/+\s]}, $Request) : 'default'; -my $NOCHAR = chr 0xFFFD; + elsif (lc $input eq 'uu') { + $row{set} = 'Unicode planes'; + $row{cell} = do 'charset-ucplanes.inc.pl' + or Alert('Table data could not be read', $@ || $!); + $row{endpoint} = 1023 * $row{cell}->{colsize}; + } + elsif (lc $input eq 'u') { + $row{cell} = do 'charset-unicode.inc.pl' + or Alert('Table data could not be read', $@ || $!); -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 - ); + $row{endpoint} ||= 8191; + $row{endpoint} *= $row{cell}->{colsize}; + $row{startpoint} = $row{cell}->{colsize} * $row{offset}; + $row{offset} = 0; + $row{set} = 'Unicode ' . ( + $row{startpoint} < 0x10000 && $row{endpoint} < 0x10000 ? 'BMP' : + $row{startpoint} >= 0x10000 && $row{endpoint} < 0x20000 ? 'SMP' : + 'allocations' + ); + } + elsif ($input =~ m/^utf-*8$/i) { + $row{set} = 'UTF-8'; + $row{cell} = do 'charset-utf8.inc.pl' + or Alert('Table data could not be read', $@ || $!); + $row{endpoint} = 255; + } + elsif ($row{set} = Encode::resolve_alias($input)) { + $row{endpoint} ||= 255; + if ($row{set} eq 'MacHebrew' or $row{set} eq 'MacThai') { + # 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} -= $row{offset}; + + if ($row{set} eq 'cp437') { + if ($row{offset} <= 0xED and $row{endpoint} >= 0xED - $row{offset}) { + # replace phi glyph + substr($row{table}, 0xED - $row{offset}, 1) = 'ϕ'; + } + if ($row{offset} < 0x20) { + # replace control characters by visible variants + my $sub = substr ' ☺☻♥♦♣♠•◘○◙♂♀♪♫☼►◄↕‼¶§▬↨↑↓→←∟↔▲▼', $row{offset}; + substr($row{table}, 0, length $sub) = $sub; + } + } + elsif ($row{set} eq 'symbol') { + if ($row{offset} <= 0x60 and $row{endpoint} >= 0x60 - $row{offset}) { + # replace radical extender by closest unicode equivalent + substr($row{table}, 0x60 - $row{offset}, 1) = '│'; + } + if ($row{offset} <= 0xBD and $row{endpoint} >= 0xFF - $row{offset}) { + substr($row{table}, 0xBD - $row{offset}, 2) = '⏐⎯'; # arrow extenders + substr($row{table}, 0xD2 - $row{offset}, 3) = '®©™'; # serif variants + substr($row{table}, 0xE0 - $row{offset}, 1) = '◊'; # replace lookalike, should match AdobeSymbol + substr($row{table}, 0xE2 - $row{offset}, 3) = '®©™'; # sans-serif variants + substr($row{table}, 0xE6 - $row{offset}, 10) = '⎛⎜⎝⎡⎢⎣⎧⎨⎩⎪'; + substr($row{table}, 0xF0 - $row{offset}, 1) = '€'; + substr($row{table}, 0xF4 - $row{offset}, 11) = '⎮⌡⎞⎟⎠⎤⎥⎦⎫⎬⎭'; + } + } + + $visible->{ascii} = # assume common base + $visible->{ $row{set} } = 1; + } + else { + Alert("Encoding $input unknown"); + return; + } + push @request, \%row; } +tabinput($_) for @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 /= $colsize; @@ -122,15 +361,16 @@ sub range_cell { if ($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 = ''; + $name = $separate && '…'; } else { # minority on next row - push @next, '"', $title || $name; + push @next, $separate && '"', $title || $name; } $table->{$offset + $colsize*$rest} //= \@next; $class .= ' joind'; @@ -139,11 +379,24 @@ sub range_cell { } elsif (my $rows = int($len / $cols)) { # multiple full rows + my $rowsize = $colsize * $cols; if ($len -= $rows * $cols) { # partial row remains - $table->{$offset + $colsize*$rows * $cols} //= [$len*$colsize, "$class joinu", '', $title]; + $table->{$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; } @@ -152,41 +405,82 @@ sub range_cell { $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"; + 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 = $row->{startpoint} || 0; + printf '
', !$row->{cell} && ' charmap'; my $title = $row->{set}; - $title .= " " for $row->{setnote} // (); + $title .= " " + for $row->{parent} || (); printf '', $title; print '' x ($cols + 1); - my $coldigits = $colsize * $cols <= 16 ? 1 : 2; # uniform length of hexadecimal header for my $section (qw{thead}) { - print "<$section>'; - for my $msb (0 .. ((length($row->{table}) || 256) - 1) / $cols) { - printf '
%s
↱"; + print "<$section>
", $rowdiv == 1 ? '+' : '↱'; printf '%0*X', $coldigits, $_ * $colsize for 0 .. $cols - 1; print "\n"; } print '
%X', ($msb + int($row->{offset} / $cols)) * $cols * $colsize; - for my $lsb (0 .. $cols - 1) { - my $val = ( ($msb * $cols) + $lsb ) * $colsize; + while ($offset < $row->{endpoint}) { + if ($row->{skip}->{$offset}) { + $offset += $cols * $colsize; + next; + } + + print '
'; + if (defined $row->{skip}->{$offset}) { + print '⋮'; + } + else { + if (my $rowmod = $offset % $rowdiv) { + # offset in column units + printf '+%X', $rowmod; + } + else { + # divided row offset + printf '%X', ($offset + $row->{offset}) / $rowdiv; + } + } + say ''; + + for (1 .. $cols) { if ($row->{cell}) { - print range_cell($row->{cell}, $val); + print range_cell($row, $offset); next; } - my $glyph = substr $row->{table}, $val, 1; - if ($glyph eq $NOCHAR) { - print ''; - 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) = $glyph eq $NOCHAR ? () : + $glyphs->glyph_html($glyph); + + if (exists $get{compare}) { + state $visible = {}; + $class = ( + $cp == ord $glyph ? 'l4' : + $row->{parent} && $glyph eq + Encode::decode($row->{parent}, pack 'C', $cp) ? 'l3' : + !$class ? undef : + $visible->{$glyph} ? 'l2' : + 'l1' + ); + $visible->{$glyph}++; } - print "\n".$glyphs->glyph_cell($glyph); + say sprintf $class ? '%s' : '', + $name, $class, $cell; + } + continue { + $offset += $colsize; } - print "\n"; } say '
'; } @@ -195,7 +489,13 @@ for my $row (@request) {
- +
<: if (exists $get{compare}) { :> +
unicode + inherited + existing + original + unassigned +<: } else { :> control whitespace diacritic @@ -232,6 +532,6 @@ for my $row (@request) {
deprecated unassigned invalid -
+<: } :>