# Pastebin 8y0o1b7V
> my constant %substitutions = 'r' => 'w','l' => 'w','R' => 'W','L' => 'W';
Map.new((L => W, R => W, l => w, r => w))
> my $str = "the quick brown fox jumped over the lazy dog";
the quick brown fox jumped over the lazy dog
> for %substitutions.kv -> $k, $v { $str ~~ s:g/$k/$v/ };
Nil