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Re: Top 10 IDL Requests [message #20797 is a reply to message #20666]

Tue, 25 July 2000 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Craig Markwardt (craigmnet@cow.physics.wisc.edu) writes:

> davidf@dfanning.com (David Fanning) writes:
>> Vinay L. Kashyap (kashyap@head-cfa.harvard.edu) writes:
>>> 2. _EXTRA
>>>
>>> Please consider having all built-in commands accept _EXTRA as a keyword.
>>
>> Uh, this is the way it works. :-)
>
> Uh, not quite. There are some built in commands that don't accept any
> keywords at all. The _EXTRA keyword doesn't work for them, *even* if
> the value passed is empty!
>
> Why is this important? Makes it a pain to write a wrapper procedure
> or function.

Alright, I must be obtuse today, but I can't figure out why
it would be hard to write wrapper routines for commands that
don't take keywords. Surely in writing the wrapper you give
at least *some* thought to what keywords you might expect
to be passed. Adding an _Extra to such a command seems
excessively anal at the very least, and certainly unnecessary. :-)

And what commands did you have in mind? I've never encountered
a built-in command that didn't accept this keyword mechanism.

Cheers,

David

--
David Fanning, Ph.D.
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[Message index]

		Top 10 IDL Requests By: davidf on Sun, 16 July 2000 00:00
		Re: Top 10 IDL Requests By: Harvey Rarback on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Phillip David on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: promashkin on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Liam E. Gumley on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Struan Gray on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Martin Schultz on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Bruce Bowler on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Larry Ashim on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Richard Tyc on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Richard Tyc on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: anne on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: wmc on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Luis Alonso on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Olivier ARCHER on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: hcp on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: richard hilton on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: dsreyn on Mon, 24 July 2000 00:00
		Re: Top 10 IDL Requests By: Jeff Guerber on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: robert.m.candey.1[2] on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: noymer on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: promashkin on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Eric Vella on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Michael Asten on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Michael Asten on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Michael Asten on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: promashkin on Wed, 19 July 2000 00:00
		Re: Top 10 IDL Requests By: wmc on Wed, 19 July 2000 00:00
		Re: Top 10 IDL Requests By: kashyap on Wed, 19 July 2000 00:00
		Re: Top 10 IDL Requests By: Joseph B. Gurman on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: dsreyn on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: Larry Ashim on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: kashyap on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: wmc on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: bradgom on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		LINUX Installation Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: Michael Asten on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: Kristian Kjaer on Fri, 28 July 2000 00:00
		Re: Top 10 IDL Requests By: Nicolas Decoster on Thu, 27 July 2000 00:00
		Re: Top 10 IDL Requests By: Paul van Delst on Mon, 31 July 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Mon, 31 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Sun, 30 July 2000 00:00
		Re: Top 10 IDL Requests By: Liam E. Gumley on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: Paul van Delst on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Liam E. Gumley on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Liam E. Gumley on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Michael Plonski on Tue, 01 August 2000 00:00
		Multiple Inheritance (Top 10 IDL Requests) By: Martin Schultz on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Alex Schuster on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Fardal on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Mon, 31 July 2000 00:00
		Re: Top 10 IDL Requests By: Paul van Delst on Mon, 31 July 2000 00:00
		Re: Top 10 IDL Requests By: Paul van Delst on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: Benno Puetz on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: Michael Plonski on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: promashkin on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Stephen Serjeant on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Nicolas Decoster on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Nick Bower on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Jeff Guerber on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: dominik on Mon, 07 August 2000 00:00
		Re: Top 10 IDL Requests By: ottehoman on Fri, 11 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: John-David T. Smith on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: ottehoman on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Sat, 12 August 2000 00:00
		Bottom 10 IDL requests ;-) was: Re: Top 10 IDL Requests By: wmc on Fri, 11 August 2000 00:00

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