charset: case-insensitive preset lookup
[sheet.git] / charset.plp
index 7e115a87581dee89111a7fc7bd5ae61f244eae37..4f60765cd7c94d346dae6f013891ee39509cb95e 100644 (file)
@@ -1,5 +1,8 @@
 <(common.inc.plp)><:
 
+my $mode = exists $get{compare};
+my @tablist = split m{/+}, $Request || 'default';
+
 Html({
        title => 'charset cheat sheet',
        version => '1.0',
@@ -12,11 +15,12 @@ Html({
                reference common overview table
        '],
        stylesheet => [qw'light'],
-       data => [qw'charset-unicode.inc.pl charset-ucplanes.inc.pl charset-utf8.inc.pl'],
+       data => [qw(
+               charset-encoding.inc.pl
+               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 );
 
 :>
@@ -73,146 +77,28 @@ use Shiar_Sheet::FormatChar;
 my $glyphs = Shiar_Sheet::FormatChar->new;
 my @request;
 
+my $charsets = do 'charset-encoding.inc.pl'
+       or Alert('Encoding metadata could not be read', $@ || $!);
+
 sub tabinput {
        # generate character table(s)
        my $input = shift or return;
+       my $params = $input =~ s/[+](.*)\z// ? $1 : undef;
+       my $charset = $charsets->{lc $input} || {};
 
-       state $ALIAS = {
-               default    => [qw( u+0-27F utf-8+realsize iso-8859-1 iso-8859-15 cp1252 cp437 cp850 )],
-               unicode    => [qw( uu+cols=32+realsize u+0-FFF u+1000-18AF u+18B0-1FFF )],
-               us         => [qw( cp437 cp863 gsm0338 AdobeStandardEncoding )],
-               ebcdic     => [qw( cp37 cp500 cp1047 posix-bc cp1026 cp875 )],
-               iso        => [map {"iso-8859-$_"} 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
-                                  +400 +2DE0 +A640-A69F +500-52F )], # MacUkrainian is broken
-               arabic     => [qw( iso-8859-6 cp1256 MacArabic cp864 cp1006 MacFarsi
-                                  +600 +8A0-8BF+8E0 +750-77F )],
-               greek      => [qw( iso-8859-7 cp1253 MacGreek cp737 cp869  +370 +1F00 )],
-               hebrew     => [qw( iso-8859-8 cp1255 MacHebrew cp862  +590 )],
-               thai       => [qw( iso-8859-11 cp874 MacThai )],
-               vietnamese => [qw( viscii cp1258 MacVietnamese )],
-               symbols    => [qw( symbol dingbats MacDingbats wingdings wingdings2 wingdings3 webdings )],
-
-               # 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;
+       if (ref $charset ne 'HASH') {
+               $params and Alert("Parameters ignored for $input",
+                       "Cannot apply <q>$params</q> to multiple charsets.",
+               );
+               tabinput($_) for ref $charset ? @{$charset} : $charset;
                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 = {
-                       'ascii'       => ['' => '00-7F'],
-                       'cp437'       => ['cp850' => 0, 'ascii' => '00-1F+80'], # ascii range overridden later
-                       'gsm0338'     => ['ascii' => '00-7F'],
-                       'dingbats'    => ['' => '20-7F+A0'],
-                       'MacDingbats' => ['dingbats' => '80-9F'],
-                       'AdobeZdingbat'=> ['MacDingbats' => '80-9F'], # should be identical but maps to private use
-                       'symbol'      => ['' => '20-7F+A0'],
-                       'AdobeSymbol' => ['symbol' => '20-7F+A0', '' => '20-7F+A0'], # minor differences, irrelevant except for different '€'
-                       'wingdings'   => ['' => '20'],
-                       'wingdings2'  => ['' => '20'],
-                       'wingdings3'  => ['' => '20'],
-                       'webdings'    => ['' => '20'],
-
-                       'iso-8859-2'  => ['iso-8859-1' => 'A0'],
-                       'iso-8859-3'  => ['iso-8859-1' => 'A0'], #TODO: also apply to iso-8859-9
-                       'iso-8859-4'  => ['iso-8859-2' => 'A0'],
-                       'iso-8859-5'  => ['iso-8859-1' => 'A0'],
-                       'iso-8859-6'  => ['cp1256' => '80', 'iso-8859-1' => 'A0'],
-                       'iso-8859-7'  => ['iso-8859-1' => 'A0'],
-                       'iso-8859-8'  => ['iso-8859-1' => 'A0'],
-                       'iso-8859-9'  => ['iso-8859-1' => 'D0-DF+F0'],
-                       'iso-8859-10' => ['iso-8859-4' => 'A0'],
-                       'iso-8859-11' => ['iso-8859-1' => 'A0'],
-                       'iso-8859-13' => ['iso-8859-4' => 'A0'],
-                       'iso-8859-14' => ['iso-8859-1' => 'A0'],
-                       'iso-8859-15' => ['iso-8859-1' => 'A0-BF'],
-                       'iso-8859-16' => ['iso-8859-2' => 'A0'],
-                       'hp-roman8'   => ['iso-8859-1' => 'A0'],
-
-                       'cp1252'      => ['iso-8859-1' => '80-9F'],
-                       'cp1250'      => ['iso-8859-2' => '80-BF', 'cp1252' => '80'],
-                       'cp1254'      => ['iso-8859-9' => '80-9F', 'cp1252' => '80-9F+D0'],
-                       'cp874'       => ['iso-8859-11' => '80-9F', 'cp1252' => '80'], # windows-874 actually cp1162
-                       'cp1257'      => ['iso-8859-13' => '80-9F+FF', 'cp1252' => '80'],
-                       'cp1251'      => ['cp1252' => '80'],
-                       'cp1253'      => ['cp1252' => '80'],
-                       'cp1255'      => ['iso-8859-8' => '80-DF', 'cp1252' => '80'],
-                       'cp1256'      => ['cp1252' => '80'],
-                       'cp1258'      => ['cp1252' => '80-9F+C0'],
-
-                       'cp850'       => ['cp437' => '90'],
-                       'cp860'       => ['cp437' => '80-AF'],
-                       'cp861'       => ['cp865' => '80-AF'],
-                       'cp863'       => ['cp437' => '80-AF'],
-                       'cp865'       => ['cp437' => '90-AF'],
-                       'cp852'       => ['cp850' => '80', 'cp437' => '80'],
-                       'cp857'       => ['cp850' => '80-AF+D0-EF', 'cp437' => '80'],
-                       'cp775'       => ['cp850' => '80'],  # partial cp437
-                       'cp866'       => ['cp437' => '80-AF+E0'],
-                       'cp855'       => ['cp437' => '80'],
-                       'cp1006'      => ['iso-8859-6' => 'A0', 'cp437' => '80'],
-                       'cp737'       => ['cp437' => '80-AF+E0'],
-                       'cp869'       => ['cp437' => '80'],
-                       'cp862'       => ['cp437' => '80-9F'],
-                       'cp864'       => ['MacArabic' => '80', 'iso-8859-6' => '80', 'cp437' => '80'], #TODO: compare form variants
-
-                       'koi8-u'      => ['koi8-r' => '90-BF'],
-                       'koi8-f'      => ['koi8-u' => '90-BF'],
-
-                       'MacRomanian' => ['MacRoman' => 'A0-BF+D0-DF'],
-                       'MacRumanian' => ['MacRomanian' => 'A0-BF+D0-DF', 'MacRoman' => 'A0-BF+D0-DF'],
-                       'MacCroatian' => ['MacRoman' => 'A0'],
-                       'MacCentralEurRoman' => ['MacRoman' => '80'],
-                       'MacIcelandic'=> ['MacRoman' => 'A0-AF+D0-EF'],
-                       'MacTurkish'  => ['MacRoman' => 'D0-DF'], # F5 is unassigned
-                       'MacSami'     => ['MacIcelandic' => '90-BF+D0-DF+F0', 'MacRoman' => '90'],
-                       'MacGreek'    => ['MacRoman' => '80'],
-                       'MacCyrillic' => ['MacRoman' => '80'],
-                       'MacHebrew'   => ['iso-8859-8' => '80', 'MacRoman' => '80-8F+A0'], # partial ascii
-                       'MacArabic'   => ['iso-8859-6' => '80', 'cp864' => '80', 'MacRoman' => '80'], #TODO: multiple parents
-                       'MacFarsi'    => ['MacArabic' => 'B0-BF', 'MacRoman' => '80'],
-
-                       'cp37'        => ['posix-bc' => '00'],
-                       'posix-bc'    => ['cp1047' => '40'],
-                       'cp500'       => ['cp37' => '40-5F+B0-BF'],
-                       'cp1047'      => ['cp37' => '10-2F+50-5F+A0-BF'],
-                       'cp1026'      => ['cp37' => '40'],
-                       'cp875'       => ['cp37' => '30'],
-
-               };
-
-               my @parents = @{ $INHERIT->{$input} || [] };
+               my @parents = @{ $charset->{inherit} || [] };
 
                if (my ($parent, $part) = pairfirst { defined $visible->{$a} } @parents) {
                        $row{parent} = $parent;
@@ -479,7 +365,7 @@ for my $row (@request) {
                        my ($cell, $name, $class) = $glyph eq $NOCHAR ? () :
                                $glyphs->glyph_html($glyph);
 
-                       if (exists $get{compare}) {
+                       if ($mode) {
                                state $visible = {};
                                $class = (
                                        $cp == ord $glyph ? 'l4' :
@@ -506,7 +392,7 @@ for my $row (@request) {
 <hr>
 
 <div class="legend">
-       <table class="glyphs"><tr><: if (exists $get{compare}) { :>
+       <table class="glyphs"><tr><: if ($mode) { :>
        <td class="X l4">unicode
        <td class="X l3">inherited
        <td class="X l2">existing