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What is the main difference between a script and a procedure? [message #56108]

Wed, 03 October 2007 00:22

mystea
Messages: 16
Registered: October 2007

Junior Member

Hello All,

I am pretty much a novice in IDL. Recently I just learned how to write/
execute a IDL script file. (i.e. @filename)

I became a little curious(or more properly, confused) about the
difference between a procedure and a script. I have my own thoughts
but would like to hear opinions from experts if possible.

As far as I can tell, a script:
1. Can't accept any arguments and can't take any extended loops.
2. It can recognize any variable that exists in the current session
because it behaves just like a a list of commands in sequence.

On the other hand, a procedure:
1. Can accept arguments, but can't recognize any variables which exist
in current IDL session.

However, I often run into the situation that I need a code which can
recognize variables in current session *as well as* taking arguments.
Is it possible to write such a code?

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[Message index]

		What is the main difference between a script and a procedure? By: mystea on Wed, 03 October 2007 00:22
		Re: What is the main difference between a script and a procedure? By: Jean H. on Fri, 05 October 2007 08:43
		Re: What is the main difference between a script and a procedure? By: David Fanning on Fri, 05 October 2007 06:39

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