String Manipulation Functions in Calculations

Would it be possible to get manipulation functions such as len() and split() in Calculations in the designer? I would for example like to be able to take the value for each row in a column e.g. Reason: "This is a proper reason", "None", "Short reason" and setup a "flag-column": "SufficientReason", that could check: if len(Reason) < 5 characters then 1 else 0.

Would this be possible to implement?