latin: palm graffiti font placeholder

[sheet.git] / font.plp

diff --git a/font.plp b/font.plp
index 0b58eedba7cda9d6bc27fa8480d3100d8d50d5e8..07df3bdb436dae43bffb2f3b2e059d9ffa05fd34 100644 (file)
--- a/font.plp
+++ b/font.plp
@@ -10,12 +10,36 @@ Html({
                script block symbol sign mark reference table
        )],
        stylesheet => [qw( light dark mono circus red )],
-       data => [qw( unicode-cover.inc.pl )],
+       data => [qw( data/unicode-cover.inc.pl )],
 });
 
 if ($font) {
-       my ($fontmeta, @cover) = do "ttfsupport/$font.inc.pl";
-       $fontmeta or die "Unknown font $font\n";
+       my ($fontmeta, @cover) = do "data/font/$font.inc.pl";
+       $fontmeta or Abort("Unknown font $font", '404 font not found');
+
+       my $map = eval {
+               $get{map} or return;
+
+               my $groupinfo = do 'data/unicode-cover.inc.pl' or die $@ || $!;
+
+               my ($cat, $name) = split m{/}, $get{map}, 2 or die "invalid map\n";
+               if (!$name) {
+                       ($cat, $name) = ('table', $cat);
+               }
+
+               my $row = $groupinfo->{$cat}->{$name}
+                       or die "unknown character group $cat/$name\n";
+               my $query = $row->{query};
+
+               my @map;
+               for (map { split /[^\d-]/ } $query) {
+                       my @range = split /-/, $_, 2;
+                       m/^[0-9]+$/ or die "Invalid code point $_ in query $query\n" for @range;
+                       push @map, $_ for $range[0] .. ($range[1] // $range[0]);
+               }
+               return \@map;
+       };
+       Abort($@, '404 invalid query') if $@;
 
        require Unicode::UCD;
 
@@ -28,7 +52,7 @@ if ($font) {
                return $_->[0]->[0] for Unicode::UCD::charblock(ucfirst) || ();  # block
                die "Unknown offset query '$_'\n";
        };
-       die $@ if $@;
+       Abort($@, '400 invalid offset') if $@;
 
        say "<h1>Font coverage</h1>";
        say "<h2>$_</h2>" for EscapeHTML($fontmeta->{name});
@@ -78,21 +102,27 @@ if ($font) {
 EOT
        say '<table class="glyphs big">';
 
+       my $offsetlink = '?' . join('&amp;',
+               (map { $_ . '=' . EncodeURI($get{$_}) } grep { defined $get{$_} } qw{ map }),
+               'q',
+       );
        say "<caption>$_</caption>" for join(' ', grep {$_}
-               $offset > $pagerows && sprintf('<a rel="start" href="?q=%d">◄</a>', 0),
+               $offset > $pagerows && sprintf('<a rel="start" href="%s=%d">◄</a>', $offsetlink, 0),
                $offset > 0 && sprintf(
-                       '<a rel="prev" href="?q=%d" title="U+%1$04X">◅</a>',
-                       $offset - $pagerows,
+                       '<a rel="prev" href="%s=%d" title="U+%2$04X">◅</a>',
+                       $offsetlink, $offset - $pagerows,
                ),
-               sprintf('U+%04X', $offset),
-               Unicode::UCD::charblock($offset),
-               $offset + $pagerows < 0x11_0000 && sprintf(
-                       '<a rel="next" href="?q=%d" title="U+%1$04X">▻</a>',
-                       $offset + $pagerows,
+               sprintf('U+%04X', $map ? $map->[$offset] : $offset),
+               Unicode::UCD::charblock($map ? $map->[$offset] : $offset),
+               $offset + $pagerows < ($map ? @{$map} : 0x11_0000) && sprintf(
+                       '<a rel="next" href="%s=%d" title="U+%2$04X">▻</a>',
+                       $offsetlink, $offset + $pagerows,
                ),
        );
 
        for my $cp ($offset .. $offset+$pagerows-1) {
+               $cp = $map->[$cp] or next if $map;
+
                state $colpos;
                my $block = Unicode::UCD::charblock($cp);
                if ($block ne (state $sameblock = $block) and $block ne 'No_Block') {
@@ -104,6 +134,22 @@ EOT
                        $colpos = 0;
                }
 
+               if ($map) {
+                       # compare previous code point and indicate gaps
+                       state $lastcp = 0;
+                       if ($cp != ++$lastcp) {
+                               if (!$colpos or $colpos++ % $pagecols > $pagecols - 3) {
+                                       # nearly last column, start new row
+                                       $colpos = 0;
+                               }
+                               else {
+                                       # mark repositioning in existing row
+                                       printf '<th>%X', $cp;
+                               }
+                               $lastcp = $cp;
+                       }
+               }
+
                say sprintf '<tr><th>%X', $cp if $colpos++ % $pagecols == 0;
 
                my $info = $glyphs->glyph_info($cp);
@@ -112,10 +158,11 @@ EOT
                # display literal character, with placeholder circle if non-spacing/enclosing
                my $html = ($class =~ /\bM[ne]\b/ && chr 9676) . EscapeHTML(chr $cp);
                say sprintf '<td class="%s" title="U+%04X%s">%s',
-                       !$class ? ('l0', $cp, '', '') :
+                       !$class ? ('l0', $cp, '', '') : (
                        $cover{$cp} ? $np ? 'l2' : 'l5' : $np ? 'Xi' : 'l1',
                        $cp, !!$name && ": $name",
-                       ($cover{$cp} || !$np) && $html;
+                       ($cover{$cp} || !$np) && $html
+                       );
        }
        say '</table>';
 
@@ -134,7 +181,7 @@ Character support of Unicode
 
 <:
 
-my $cover = do 'unicode-cover.inc.pl' or die $@ || $!;
+my $cover = do 'data/unicode-cover.inc.pl' or die $@ || $!;
 
 my @ossel = @{ $cover->{osdefault} };
 my @fontlist = map { @{ $cover->{os}->{$_} } } @ossel;
@@ -172,7 +219,7 @@ my @rows = (
 
 if (my $group = $get{q}) {
        my $grouprows = $cover->{$group}
-               or die "Unknown character category $_\n";
+               or Abort("Unknown character category $_", 404);
        @rows = map { "$group/$_" } sort keys %{$grouprows};
 }