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Re: eval [message #50540 is a reply to message #50392]

Tue, 03 October 2006 18:25

Dominic Metzger
Messages: 30
Registered: August 2006

Member

Thanks David...

Would this also be possible with call_function or call_procedure since
EXECUTE causes certain limitations and inefficiencies.

Something like:
IDL> foo="bar, arg1, arg2, arg3, arg4=foo"
IDL> call_procedure(foo)

I want to dynamically build the list of arguments as a string and the
call the whole thing. Is this possible with call_function or
call_procedure?
Or is it possible to pass in an array containing the arguments
(including named args) somehow?

thanks,

dometz

PS: Is it even possible to get the return value when using execute for
a function?

David Fanning wrote:
> Dometz writes:
>
>> Is there something like the Unix eval command:
>> "The eval utility will construct a command by concatenating arguments
>> together, separating each with a space character. The constructed
>> command will be read and executed by the shell."
>> in IDL? So that I basically can create a command dynamically by
>> creating a string that will then be "evaled"?
>>
>> Something like:
>> IDL> foo="print, bar"
>> IDL> eval(foo)
>> bar
>
> See EXECUTE.
>
> Cheers,
>
> David
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming: http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		eval By: Dominic Metzger on Tue, 03 October 2006 17:53
		Re: eval By: Dominic Metzger on Wed, 04 October 2006 22:36
		Re: eval By: wlandsman@jhu.edu on Wed, 04 October 2006 19:40
		Re: eval By: David Fanning on Wed, 04 October 2006 16:13
		Re: eval By: Michael Galloy on Wed, 04 October 2006 15:56
		Re: eval By: David Fanning on Wed, 04 October 2006 14:21
		Re: eval By: JD Smith on Mon, 09 October 2006 10:51
		Re: eval By: Dominic Metzger on Wed, 04 October 2006 12:22
		Re: eval By: Braedley on Wed, 04 October 2006 12:12
		Re: eval By: Maarten[1] on Wed, 04 October 2006 00:53
		Re: eval By: Dominic Metzger on Tue, 03 October 2006 21:29
		Re: eval By: David Fanning on Tue, 03 October 2006 18:51
		Re: eval By: Dominic Metzger on Tue, 03 October 2006 18:25
		Re: eval By: David Fanning on Tue, 03 October 2006 18:13

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