Linux, macOS, Windows, Docker

Multi Paradigm

Smoothly combine coding styles:

Object-Oriented: class Circle encapsulates data and behavior.
Functional: built-ins like .map and operators like ». and [+] .
Declarative: ... infers sequences, such as the powers of two.
Procedural: the overall code flow is straightforward.

...natural syntax & semantics

class Circle {
    has $.radius;
    method area { π * $.radius² }
}my @radii = 1,2,4...256;
my @circles = map { Circle.new(:$^radius) }, @radii;
my $total-area = [+] @circles».area;
say "Total area: $total-area";

Grammars

Definable grammars for pattern matching and generalized string processing.

...domain specific languages

grammar Parser {
    rule  TOP  { I <love> <lang> }
    token love { '♥' | love }
    token lang { < Raku Rust Go Python Ruby TypeScript PHP > }
}say Parser.parse: 'I ♥ Raku';

say Parser.parse: 'I love Python';

Unicode Regexes

The most powerful Unicode-aware regular expression engine available, especially for complex text processing.

It shines in tasks where precision and multilingual support are essential such as Grapheme and Diacritic handling.

...unicode centric text handling

say "Cool😎" ~~ /<:Letter>* <:Block("Emoticons")>/; say "Cześć" ~~ m:ignoremark/ Czesc /;               say "WEIẞE" ~~ m:ignorecase/ weisse /;              say "หนูแฮมสเตอร์" ~~ /<:Letter>+/;

Localization & Internationalization

This snippet is written using Japanese identifiers and strings, showcasing localization (L10N) and internationalization (I18N) features.

Localized Raku code can be automatically translated to any other localization.

...think global: act local

私の $数 = プロンプト "数を教えてください ";
言う "数は{$数}です。";もしも $数 <= 10 {
    言う "数は10以下です";
} その他 {
    言う "数は10以上です";
}

Supported by:

if you would like to support Raku, please send a message to [email protected]

Trusted by:

organisations that use Raku in a production setting

Linux, macOS, Windows, Docker