Narcissist

For the narcissist to work you must be very careful with whitespace. The following version works if it is given to standard input as exactly one line terminated by a newline character.

Note how the code takes advantage of Raku's ability to nest quoting delimiters.

EVAL my $self = q{say slurp() eq q[EVAL my $self = q{]~$self~q[}]~10.chr ?? q{Beautiful!} !! q{Not my type.}}

Output:

$ narcissist='EVAL my $self = q{say slurp() eq q[EVAL my $self = q{]~$self~q[}]~10.chr ?? q{Beautiful!} !! q{Not my type.}}'
$ raku -e "$narcissist" <<<"$narcissist"
Beautiful!
$ raku -e "$narcissist" <<<"$narcissist # a comment ruining it all" 
Not my type.