Path: utzoo!mnetor!uunet!husc6!bbn!rochester!ur-tut!aisl
From: aisl@ur-tut.UUCP (Larry Landry)
Newsgroups: comp.sys.mac.hypercard
Subject: Debugging HyperCard scripts
Message-ID: <824@ur-tut.UUCP>
Date: 15 Jan 88 21:33:50 GMT
Organization: Univ. of Rochester Computing Center
Lines: 16


I am trying to make a debugging aid for HyperCard.  I have the HyperCard
Script Language Guide from APDA dated 11 August 87.  In this documentation
there is a command called cantUnderstand that is supposedly sent to the
open card when an incorrect HyperTalk statement it executed.  

I don't seem to get this message when I give an invalid instruction.  I 
just get the standard Can't Understand script dialog.

In looking for possibly another name for this message, I stumbled across
a command called 'debug'.  You can either turn it on or off, but I haven't
figured out what it does yet.

I need some method of testing a HyperTalk command or getting back control
with an error message when an incorrect command is executed.  Has anyone
has figured out how to do this?