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Re: How to make IDL be quiet [message #37456 is a reply to message #37452]

Tue, 16 December 2003 19:44

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

David Fanning <davidf@dfanning.com> writes:
> mwallace.removethismunge@swri.edu.invalid writes:
>
>> I'm quite new to IDL, so hopefully this will be a simple question for
>> the rest of you.
>>
>> How can I prevent IDL from printing out all the nominal messages such as
>> "% Compiled Module: FOO" or "% Loaded DLM: BAR"? I'd rather that IDL
>> just be quiet and only report something to the terminal if there were a
>> serious error or if I use a print statement from within my program.
>>
>> I also have a couple places in my code where an error could be expected.
>> In those particular cases, I still want the error handling on and
>> !ERROR_STATE to be filled with the correct values, but I don't want to
>> show this error since I will be handling it and the program will
>> continue execution. So, in short, how do I get control over what's
>> written to the terminal?
>
> I'm sure you *think* this is what you want to do.
> But I'm also sure that if you succeed in doing it,
> it won't be long before you see what a really bad
> idea this is. :-)
...
> a silent Catch that I don't have too much sympathy for

Despite David's current peevishness, CATCH is definitely a strong
contender for what you want. David is right though, you need to have
pretty good policy regarding how errors get handled and get passed up
the chain.

Other contenders are ON_ERROR and ON_IOERROR. ON_ERROR doesn't give
you much control; sometimes ON_IOERROR is required to catch I/O errors
I believe (and "I/O" includes typecasts).

As to your first question, there is some newfangled compile option
which can turn off the "compiled" messages, but I don't bother.
Eventually you learn coping skills.

Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: How to make IDL be quiet By: dcw_yip on Thu, 18 December 2003 11:37
		Re: How to make IDL be quiet By: Michael Wallace on Wed, 17 December 2003 12:08
		Re: How to make IDL be quiet By: dcw_yip on Wed, 17 December 2003 11:21
		Re: How to make IDL be quiet By: David Fanning on Wed, 17 December 2003 05:19
		Re: How to make IDL be quiet By: Pepijn Kenter on Wed, 17 December 2003 04:21
		Re: How to make IDL be quiet By: marc schellens[1] on Wed, 17 December 2003 04:18
		Re: How to make IDL be quiet By: Craig Markwardt on Tue, 16 December 2003 19:44
		Re: How to make IDL be quiet By: David Fanning on Tue, 16 December 2003 18:30

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