version 5 by Jesse McGrew
Section 4a - Parser error handling - unindexed
The QT overflow is a number variable. After reading a command: change the QT overflow to 0. [It will be set to 1 by QuotedText if the quoted text is too long or isn't terminated.]
Rule for printing a parser error when parser error is didn't understand and QT overflow is 1 (this is the standard quoted text parser error rule): say "I didn't understand that sentence. If you are entering a quoted message, remember to keep it short and include a final quotation mark."