$ whois raku

Raku

first released in 2015 · by Larry Wall

$ guessprog --inspect raku

year: 2015
paradigm: multi paradigm
family: other
memory: automatic gc
binding: gradual
safety: strong

RAKU(7)

AUTHORS: Larry Wall
HISTORY: Larry Wall announced Perl 6 in 2000 as a redesign of Perl that would break backwards compatibility to fix long-standing warts, with the community submitting hundreds of proposals for the new language. The design took a famously long time: the first stable version was released on Christmas Day 2015. By then it had become a very different language from Perl 5, with gradual typing, grammars and lazy lists, and in 2019 it was renamed Raku so the two could go their own ways.
USAGE: A niche language with a small, enthusiastic community. It is used mostly for scripting, text processing and parsing, where its built-in grammars shine.
SEE ALSO: Raku on Wikipedia ↗

$ cat config.raku

# Grammars are first-class: parse "key = value" lines
grammar Config {
    token TOP   { <pair>+ %% \n }
    token pair  { <key> \h* '=' \h* <value> }
    token key   { \w+ }
    token value { \N+ }
}

my $m = Config.parse("name = Raku\nyear = 2015");
say "{.<key>} -> {.<value>}" for $m<pair>;

say (1, 1, * + * ... *)[^10];   # lazy Fibonacci sequence