termcol: make rules to setup xcolors checkout

[sheet.git] / font.plp

diff --git a/font.plp b/font.plp
index cc07c0528344b810a6e1ecc44bf8e7e545f9dd83..d4d7debf24147e339fc81579840c33d55aed6fa0 100644 (file)
--- a/font.plp
+++ b/font.plp
@@ -17,6 +17,30 @@ if ($font) {
        my ($fontmeta, @cover) = do "ttfsupport/$font.inc.pl";
        $fontmeta or die "Unknown font $font\n";
 
+       my $map = eval {
+               $get{map} or return;
+
+               my $groupinfo = do '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;
+       };
+       die $@ if $@;
+
        require Unicode::UCD;
 
        my $pagerows = 0x200;
@@ -50,7 +74,7 @@ if ($font) {
                        (map { "with <em>$_</em>" } $_ || ()),
                        ('and published as freeware "Core Web font"') x ($_ eq 'Windows 2000'),
                        (map { "under a $_ license" }
-                               map { $fontmeta->{license} ? qq(<a href="$fontmeta->{license}">$_</a>) : $_ }
+                               map { $fontmeta->{license} ? qq(<a href="$fontmeta->{license}" rel=nofollow>$_</a>) : $_ }
                                $_ && $_ ne 'Android' ? 'proprietary' : 'free',
                        ),
                );
@@ -78,21 +102,27 @@ if ($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);