This was written in 2009, subsequently there is Dialog: https://linusakesson.net/dialog/index.php https://linusakesson.net/dialog/index.php which is a meld of P

This was written in 2009, subsequently there is Dialog: https://linusakesson.net/dialog/index.php https://linusakesson.net/dialog/index.php which is a meld of Prolog (!) with IF and it's very, very nice to program in.