[Raku CSS Project]
/ [CSS-Writer]
CSS-Writer-raku
AST writer/serializer module. Compatible with CSS:Module and CSS::Grammar.
Examples
Serialize a declaration (ruleset); converting named colors to RGB masks
use CSS::Writer;
my CSS::Writer $css-writer .= new( :!pretty, :color-values, :color-masks );
say $css-writer.write(
:ruleset{
:selectors[ :selector[ { :simple-selector[ { :element-name<h1> } ] } ] ],
:declarations[
{ :ident<font-size>, :expr[ :pt(12) ] },
{ :ident<color>, :expr[ :ident<white> ] },
{ :ident<z-index>, :expr[ :num(-9) ] },
],
});
# output: h1 { font-size:12pt; color:#FFF; z-index:-9; }
Tidy and reduce size of CSS
use CSS::Writer;
use CSS::Grammar::CSS3;
sub parse-stylesheet($css) {
use CSS::Grammar::CSS3;
use CSS::Grammar::Actions;
my CSS::Grammar::Actions $actions .= new;
CSS::Grammar::CSS3.parse($css, :$actions)
or die "unable to parse: $css";
return $/.ast
}
my CSS::Writer $css-writer .= new( :!pretty );
my $stylesheet = parse-stylesheet( 'H1{ cOlor: RED; z-index : -3}' );
say $css-writer.write( $stylesheet );
# output: h1 { color:red; z-index:-3; }
Writer Options
:ast Provide a default ast. This enables stringification, e.g.
my CSS::Writer $css .= new( :ast( :string('Hello World!' ) ) );
say ~$css; # output: 'Hello World!'
:color-masks Prefer hex mask notation for RGB values, .e.g. #0085FF instead of rgb(0, 133, 255)
:color-names Convert RGB values to color names
:color-values Convert color names to RGB values
:!pretty write each stylesheet element on a single line, without indentation. Don't write comments.
Usage Notes