Raku

Raku is a programming language created in 2019 by Larry Wall.

#871on PLDB	4Years Old	16Users
5Books	0Papers	3kRepos

Raku is a member of the Perl family of programming languages. Formerly known as Perl 6, it was renamed in October 2019.While historically several interpreter and compiler implementations were being written, today only the Rakudo implementation is in active development. Raku introduces elements of many modern and historical languages. Read more on Wikipedia...

Raku website
Raku Wikipedia page
There are at least 2,521 Raku repos on GitHub
Raku first developed in https://www.raku.org/community
file extensions for Raku include 6pl, 6pm, nqp, p6, p6l, p6m, pl, pl6, pm, pm6, raku, rakumod and t
The Google BigQuery Public Dataset GitHub snapshot shows 497 users using Raku in 589 repos on GitHub
raku.org was registered in 1999
HTML of this page generated by LanguagePage.ts

Example from the web:

grammar Parser {
    rule  TOP  { I <love> <lang> }
    token love { '♥' | love }
    token lang { < Raku Perl Rust Go Python Ruby > }
 }
 
 say Parser.parse: 'I ♥ Raku';
 # OUTPUT: ｢I ♥ Raku｣ love => ｢♥｣ lang => ｢Raku｣
 
 say Parser.parse: 'I love Perl';
 # OUTPUT: ｢I love Perl｣ love => ｢love｣ lang => ｢Perl｣
 start { sleep 1.5; print "hi" }
 await Supply.from-list(<A B C D E F>).throttle: 2, {
     sleep 0.5;
     .print
 }
 # OUTPUT: ABCDhiEF
 # No floating point noise:
 say 0.1 + 0.2 == 0.3;        # OUTPUT: True
 say (1/13 + 3/7 + 3/8).perl; # OUTPUT:  <641/728>
 # Infinite list of primes:
 my @primes = ^∞ .grep: *.is-prime;
 say "1001ˢᵗ prime is @primes[1000]";
 
 # Lazily read words from a file
 .say for '50TB.file.txt'.IO.words;

Example from hello-world:

say "Hello World";

Feature	Supported	Token	Example
Strings	✓	"	"Hello world"
Print() Debugging	✓	say
Comments	✓		# A comment
Line Comments	✓	#	# A comment
Function Composition	✓		my &foo = &f ∘ &g;
Refinement Types	✓		subset Color of Any where Color \| CMYK_Color;
Semantic Indentation	X

Books about Raku from ISBNdb

title	authors	year	publisher
Raku Fundamentals: A Primer with Examples, Projects, and Case Studies	Lenz, Moritz	2020	Apress
Using Raku: 100 Programming Challenges Solved in the Raku Programming Language	Shitov, Andrew	2019	DeepText
Raku Recipes: A Problem-Solution Approach	Merelo, J.J.	2020	Apress
Raku Recipes	J.J. Merelo	20201012	Springer Nature
Raku Fundamentals	Moritz Lenz	20200905	Springer Nature

Raku - Programming language

Language features

Books about Raku from ISBNdb