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Re: Checking for perl [message #52912 is a reply to message #52911]

Wed, 07 March 2007 06:46

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Ben Panter writes:

> My code runs on linux with spawn quite happily, but I'd really like
> to also have it run in windows. On my xp laptop this is fine - I have
> perl set up, and it's happy to be spawned. The problem comes, of course,
> when I give the code to someone else. I'd like to be able to safely
> check whether perl is installed, and if not return a *device
> independent* warning that the action wasn't possible - without crashing
> the code.... any ideas?

Maybe you could search the PATH environment variable for "perl":

IDL> thePath = GetEnv('PATH')
IDL> IF StrPos(StrUpCase(thePath), 'PERL\BIN') NE -1 $
THEN Print, 'PERL is allowed'

PERL is allowed

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]

		Re: Checking for perl By: Ben Panter on Wed, 07 March 2007 07:34
		Re: Checking for perl By: Ingo von Borstel on Wed, 07 March 2007 07:27
		Re: Checking for perl By: wlandsman@jhu.edu on Wed, 07 March 2007 07:22
		Re: Checking for perl By: David Fanning on Wed, 07 March 2007 07:18
		Re: Checking for perl By: Ben Panter on Wed, 07 March 2007 07:03
		Re: Checking for perl By: David Fanning on Wed, 07 March 2007 06:46

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