#| Abstract base class for font source references
unit class CSS::Font::Resources::Source;

use CSS::Font::Descriptor;

my constant %Extensions = %( :woff<woff>, :woff2<woff2>, 'ttf'|'ttc' => 'truetype', :otf<opentype>, :eot<embedded-opentype>, 'svg'|'svg2' => 'svg', 'pfa'|'pfb' => 'postscript', 'cff' => 'cff');
subset FontFormat is export(:FontFormat) of Str where 'woff'|'woff2'|'truetype'|'opentype'|'embedded-opentype'|'postscript'|'svg'|'cff'|Str:U;
subset WebFontFormat of FontFormat where 'woff'|'woff2'|'truetype'|'opentype'|'embedded-opentype'|'svg'|Str:U;

has CSS::Font::Descriptor:D $.font-descriptor is required handles<font-family fontconfig-pattern find-font Str>;
has FontFormat $.format;
has Str:D $.family is required;

sub guess-format(Str:D() $_ --> FontFormat) is export(:guess-format) {
    do if $_ ~~ /'.'(<- [.]>+?) $/ {
        %Extensions{$0.lc};
    } // Str
}

method format {
    $!format //= guess-format(self.IO.path);
}



head

This is an abstract base class for font descriptor source references. See also instance classes:


item

code

=begin code :lang<raku>
use CSS::Font::Descriptor;
use CSS::Font::Resources;
use CSS::Font::Resources::Source;
my CSS::Font::Descriptor @font-face;
@font-face.push: CSS::Font::Descriptor.new: :font-family("DejaVu Sans"), :src<url("fonts/DejaVuSans.ttf")>;
@font-face.push: CSS::Font::Descriptor.new: :font-family<serif>, :font-weight<bold>, :src<local(DejaVuSans-Bold)>;
my $font = "bold 12pt times roman, serif";
my CSS::Font::Resources $fonts .= new: :$font, :@font-face;
my CSS::Font::Resources::Source @sources = $fonts.sources;
with @sources.head -> $src {
    say ($src.type, $src.format, $src.IO.path).join: ', ';
    # has matched the second descriptor.
    # results may be system dependant, e.g.:
    # local, truetype, /usr/share/fonts/truetype/dejavu/DejaVuSerif-Bold.ttf
}
=end code


=begin code :lang<raku>
use CSS::Font::Descriptor;
method font-descriptor returns CSS::Font::Descriptor;
=end code


Returns the L<CSS::Font::Descriptor> associated with the source.


=begin code :lang<raku>
use CSS::Font::Resource::Source :FontFormat;
method format returns FontFormat;
=end code


Returns the font-format, one of: 'woff', 'woff2', 'truetype', 'opentype', 'embedded-opentype', 'svg'.


The format may be set by a `format(...)` declaration in the CSS `src` property. If this is absent, the
format is guessed from the extension on the url (url sources), or matching file (local sources).


type
Returns the source type 'local' (L<CSS::Font::Resources::Source::Local>), or 'url' (L<CSS::Font::Resources::Source::Url>)


=begin code :lang<raku>
method IO returns IO::Path;
=end code


=begin code :lang<raku>
method format returns FontFormat;
=end code


root

Local

Resources

React

=begin React :component<HeaderCol> :id<menu> 
=para L<Documentation|/doc/introduction>
=para L<Modules| /mods>
=para L<Examples| file:../examples/index.podlite>
=para L<Download |file:../download/index.podlite>
=para L<About|file:../about/index.podlite>
=para 🔍 K<⌘K>/K<ctrl-K>
=end React


=begin React :component<HeaderCol> :id<footer>  
=begin nested :!nested
=item1 B<Language>
    =item2 L<Get started|file:../getting-started/getting-started.podlite>
    =item2 L<Why Raku?|/doc/language/faq#Why-should-I-learn-Raku-What's-so-great-about-it>
    =item2 L<Try Raku|https://glot.io/new/raku>
    =item2 L<Raku cheat sheet|https://github.com/Raku/mu/blob/master/docs/Perl6/Cheatsheet/cheatsheet.txt>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<Raku on Exercism|https://exercism.org/tracks/raku>
    =item2 L<Wikipedia|https://en.wikipedia.org/wiki/Raku_(programming_language)>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>

=end nested
=begin nested :!nested

=item1 B<L<Documentation|/doc>>
    =item2 L<Getting started, Migration guides from other languages, & Tutorials | file:../doc/introduction.podlite>
    =item2 L<Language References|file:../doc/reference.podlite>
    =item2 L<Type Reference| file:../doc/types.podlite>
    =item2 L<Miscellaneous| file:../doc/miscellaneous.podlite>
    =item2 L<FAQs (Frequently Asked Questions)|/doc/language/faq>
    =item2 L<Community|/doc/language/community>
    =item2 L<The list of all documents|file:../doc/index.podlite>

=item1 B<Resources>
    =item2 L<The Raku Guide|https://raku.guide/>
    =item2 L<Books |https://perl6book.com/>
    =item2 L<Rosetta Code | https://www.raku.org/community/rosettacode>

=end nested
=begin nested :!nested

=item1 B<Resoures>
    =item2 L<Download | file:../download/index.podlite>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>

=item1 B<Learning>
    =item2 L<The Raku Guide|https://raku.guide/>
    =item2 L<Wikibook |https://en.wikibooks.org/wiki/Raku_Programming>
    =item2 L<Books |https://perl6book.com/>
    =item2 L<Rosetta Code | https://www.raku.org/community/rosettacode>
    =item2 L<Learn Raku in Y minutes|https://learnxinyminutes.com/docs/raku/>
    =item2 L<Golfing |https://github.com/AlexDaniel/raku-golf-cheatsheet>
=end nested
=begin nested :!nested

=item1 B<Explore>
    =item2 L<Raku Blog Aggregator|https://planet.raku.org/>
    =item2 L<Rakudo Weekly|https://rakudoweekly.blog/>
    =item2 L<The Weekly Challenge |https://perlweeklychallenge.org/>
    =item2 L<Raku Advent Calendar|https://raku-advent.blog/>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>

=end nested
=end React


=begin React :component<CookieConsent> :id<CookieConsent> :buttonCaption("Got it!")
=para
This website uses cookies for analytics.
=end React


Source

Description

Example

Methods

font-descriptor

format

type Returns the source type 'local' (CSS::Font::Resources::Source::Local), or 'url' (CSS::Font::Resources::Source::Url)

IO

Blob

CSS::Font::Resources v0.0.9

Authors

License

Dependencies

Test Dependencies

Provides

Documentation