version 5 by Michael Callaghan
Section 3 - Rules for real number questions
Real number question rules is a rulebook.
The real number question rules have outcomes exit (success), retry (failure) and parse (failure).
The first real number question rule (this is the invalid real number reply rule):
if the player's command does not match "[real number]":
if closed question mode is true:
if closed question mode is false:
The last real number question rule (this is the default real number question rule):