<(common.inc.plp)><: Html({ title => 'charset cheat sheet', version => '1.0', description => [ "Reference sheet with all glyphs in common character encoding tables,", "and an overview of Unicode ranges and UTF-8 bytes.", ], keywords => [qw' charset codepage unicode ascii utf8 latin glyph character encoding reference common overview table '], stylesheet => [qw'light'], 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 @request; 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}) { tabinput($_) for ref $follow ? @{$follow} : $follow; return; } 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} 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 { $row{table} = Encode::decode($row{set}, pack 'C*', $row{offset} .. $endpoint); # (~16x faster than decoding in loop; # substr strings is twice as fast as splitting to an array) if ($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 ); } } } else { Alert("Encoding $input unknown"); return; } push @request, \%row; } tabinput($_) 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 % $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 = $offset + (length($row->{table}) || 256) * $colsize; printf '

', !$row->{cell} && ' charmap'; my $title = $row->{set}; $title .= " " for $row->{setnote} // (); printf '', $title; print '' x ($cols + 1); for my $section (qw{thead}) { print "<$section>'; while ($offset < $endpoint - 1) { print '

%s
", $rowdiv == 1 ? '+' : '↱'; printf '	%0X', $coldigits, $_ $colsize for 0 .. $cols - 1; print "\n"; } 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 range_cell($row, $offset); next; } my $glyph = substr $row->{table}, $offset, 1; if ($glyph eq $NOCHAR) { print '	'; next; } print "\n".$glyphs->glyph_cell($glyph); } continue { $offset += $colsize; } print "\n"; } say '

'; } :>

control

whitespace

diacritic

letter

punctuation

quote

symbol

math

currency

numeric

greek

latin

cyrillic

aramaic

brahmic

arabic

syllabic

african

japanese

cjk

chinese

alphabetic

unicode 7.0

proposed

deprecated

unassigned

invalid