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Re: Error handling and tracebacks [message #40117 is a reply to message #40114]

Wed, 21 July 2004 16:26

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Michael Wallace writes:

> How do I disable tracebacks associated with the message procedure?

My goodness, you are having a tough day, today. :-)

> Before the programming gurus yell at me for potentially hiding bugs my
> code, let me explain why I want to do this. I have a library of
> procedures and in certain cases I am creating my own errors via message
> which are several calls down in the stack. When the error comes out,
> there is a long traceback, but I only want the end user to see the
> message itself and not the entire traceback since the traceback is going
> several layers down into code that the end user shouldn't even be aware
> of. I do want the user to see the error, but not all the files and line
> numbers.

I think your only hope here is to CATCH the errors
thrown by MESSAGE yourself, then prune the error traceback
(which you maybe save in a string variable, with the OUTPUT
keyword) and pass it on to the user:

Catch, theError
IF theErron NE 0 THEN BEGIN
Help, /Traceback, Output=helpString
Prune, helpString
Print, helpString
ENDIF

I don't have any idea what the PRUNE procedure
might look like. :-(

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Re: Error handling and tracebacks By: David Fanning on Wed, 21 July 2004 22:08
		Re: Error handling and tracebacks By: Michael Wallace on Wed, 21 July 2004 21:52
		Re: Error handling and tracebacks By: David Fanning on Wed, 21 July 2004 16:26

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