data => [qw'charset-unicode.inc.pl charset-utf8.inc.pl'],
});
+my @tablist = split /[^\w-]+/, $Request || 'default';
+
:>
<h1>Character encoding</h1>
use POSIX qw( ceil );
use Shiar_Sheet::FormatChar;
my $glyphs = Shiar_Sheet::FormatChar->new;
+my @request;
-# 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, cols => 16);
- my $endpoint = 255;
- if ($input =~ s/^--//) {
- $row{offset} = $endpoint > 160 ? 160 : 48;
- }
- elsif ($input =~ s/^-//) {
- $row{offset} = $endpoint > 128 ? 128 : 32;
+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 { defined $visible->{$a} } @parents) {
+ $row{parent} = $parent;
+ $params = $part;
+ $params = 128 unless $visible->{$parent}
+ or ($input eq 'MacCroatian' and defined $visible->{MacRomanian});
}
- if ($input =~ s/-$//) {
- $endpoint = $row{offset} ? $row{offset} < 160 ? 159 : 191 : 127;
+ elsif (defined $visible->{ascii}) {
+ $row{parent} = $parents[0];
+ $params = $parents[1] || 128;
+ $params = 128 if $params >= 128; # ascii offset at most
}
- if ($row{offset}) {
- $row{setnote} = 'over cp437' if $input eq 'cp850';
- $row{setnote} = 'over iso-8859-1' if $input =~ /^iso-8859-|^cp125/;
+ elsif (@parents) {
+ $row{parent} = $parents[0];
}
+ $visible->{$_} //= 0 for $row{parent};
+ }
+
+ 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';
- $row{cell} = do 'charset-ucplanes.inc.pl'
+ elsif ($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', $@ || $!);
- $row{cols} *= 2;
}
- elsif ($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', $@ || $!);
+ else {
+ if ($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 {
+ # ~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->{ $row{set} } = 1;
}
- else {
- Alert("Encoding <q>$input</q> unknown");
- }
- $row{set} ? \%row : ();
}
else {
- ();
+ Alert("Encoding <q>$input</q> unknown");
+ return;
}
-} map { defined $ALIAS{$_} ? @{ $ALIAS{$_} } : $_ }
- $Request =~ /\w/ ? split(m{[/+\s]}, $Request) : '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[$cp437]->{table}, 0, 32) = pack 'U*', map {hex} qw(
- 2007 263A 263B 2665 2666 2663 2660 2022 25D8 25CB 25D9 2642 2640 266A 266B 263C
- 25BA 25C4 2195 203C 00B6 00A7 25AC 21A8 2191 2193 2192 2190 221F 2194 25B2 25BC
- );
+ push @request, \%row;
}
+tabinput($_) for @tablist;
+
+my $NOCHAR = chr 0xFFFD;
sub range_cell {
my ($info, $offset) = @_;
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;
+ my $endpoint = $offset + $row->{len} * $colsize;
printf '<div class="section"><table class="glyphs%s">', !$row->{cell} && ' charmap';
my $title = $row->{set};
- $title .= " <aside>($_)</aside>" for $row->{setnote} // ();
+ $title .= " <aside>(over $_)</aside>"
+ for grep { $_ ne 'iso-8859-1' } $row->{parent} // ();
printf '<caption>%s</caption>', $title;
print '<col>' x ($cols + 1);
for my $section (qw{thead}) {
next;
}
- my $glyph = substr $row->{table}, $offset, 1;
+ my $glyph = ref $row->{table} eq 'ARRAY' ? $row->{table}->[$offset] :
+ substr $row->{table}, $offset, 1;
if ($glyph eq $NOCHAR) {
print '<td>';
next;
}
+ if (exists $get{compare}) {
+ state $visible = {};
+ my $cp = $offset + $row->{offset};
+ printf '<td class="%s" title="%3$s">%2$s',
+ $cp == ord $glyph ? 'l4' :
+ $row->{parent} && $glyph eq
+ Encode::decode($row->{parent}, pack 'C', $cp) ? 'l3' :
+ $visible->{$glyph} ? 'l2' :
+ 'l1',
+ $glyphs->glyph_html($glyph);
+ $visible->{$glyph}++;
+ next;
+ }
+
print "\n".$glyphs->glyph_cell($glyph);
}
continue {
<hr>
<div class="legend">
- <table class="glyphs"><tr>
+ <table class="glyphs"><tr><: if (exists $get{compare}) { :>
+ <td class="X l4">unicode
+ <td class="X l3">inherited
+ <td class="X l2">existing
+ <td class="X l1">original
+ <td class="">unassigned
+<: } else { :>
<td class="X Cc">control
<td class="X Zs"><span>whitespace</span>
<td class="X Mn">diacritic<table class="glyphs"><tr>
<td class="X Xd">deprecated
<td class="">unassigned
<td class="X Xi">invalid
- </table>
+<: } :> </table>
</div>