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Re: alternative to execute [message #47294 is a reply to message #47203]

Wed, 01 February 2006 03:01

greg michael
Messages: 163
Registered: January 2006

Senior Member

Thanks very much, Robbie, for your detailed reply. Unfortunately, it's
not 300 functions that I have, but 300 parameters. I couldn't enumerate
the set of possible functions. So I don't think I could apply your
method (if I've understood it correctly).

I got a suggestion by email (thanks, Matt) to use call_function.

What I don't have a solution for, is how to handle operator precedence
and simple arithmetic operators -

e.g. result = (b001 + b002) / b003 + sqrt(b004) + b005^2 (unrealistic,
but demonstrative example)

'execute' would have managed all that for me. If I do it using
call_function, it looks to me like I'll have to write code to pull out
the brackets, apply each type of operator and function in the right
order. call_function would handle only the 'sqrt' (when I got that far)
- or am I wrong?

Maybe it's not such a difficult task to write this code, but a pity
since IDL already knows how to do it!

greg

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[Message index]

		Alternative to EXECUTE? By: anne.martel on Tue, 02 December 2003 06:40
		Re: alternative to execute By: marc schellens[1] on Wed, 01 February 2006 00:09
		Re: alternative to execute By: Ken Mankoff on Tue, 31 January 2006 18:22
		Re: alternative to execute By: greg michael on Wed, 01 February 2006 03:04
		Re: alternative to execute By: Robert Barnett on Tue, 31 January 2006 14:02
		Re: alternative to execute By: greg michael on Wed, 01 February 2006 03:01

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