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Re: Undocumented functions in IDL [message #83356 is a reply to message #83355]

Thu, 28 February 2013 19:52

timothyja123
Messages: 57
Registered: February 2013

Member

On Friday, March 1, 2013 2:29:42 PM UTC+11, timoth...@gmail.com wrote:
> I have a question for the IDL developers about an undocumented functions in IDL. While I'm fairly new to IDL I'm maintaining IDL code that was written before I even knew the language existed. Up until now I had assumed the function was implemented in our code somewhere (due to the IDE not highlighting it) until I went searching for it today.
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> I find it strange enough that IDL even has hidden functions considering it only has a single namespace.
>
> Anyway I my question is about the strtok() function. Do you guys have any plain to document this feature? As far as I can tell it has existed in IDL versions for at least 13 years that seems like more than enough time to make sure its stable and after a quick google search it seems like its hardly unknown.
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> Or should I be using STRSPLIT? What is the difference between the two?
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> Thanks,
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> Tim

After some more googling it turns out they are the same thing. One documented, one undocumented.

;+
; NAME:
; STRSPLIT
;
; PURPOSE:
; Wrapper on the build in system routine STRTOK that implements exactly
; the same interface as STRTOK, but with the STRSPLIT name.
;
; The reason for doing this is so that if a user has their own
; STRSPLIT in their local user library, their version will superceed
; this one. RSI does not recommend this practice, but it is
; allowed for backwards compatability reasons. ...

This seems a bit messy.

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[Message index]

		Re: Undocumented functions in IDL By: David Fanning on Fri, 01 March 2013 06:08
		Re: Undocumented functions in IDL By: timothyja123 on Fri, 01 March 2013 03:09
		Re: Undocumented functions in IDL By: David Fanning on Thu, 28 February 2013 21:26
		Re: Undocumented functions in IDL By: timothyja123 on Thu, 28 February 2013 21:03
		Re: Undocumented functions in IDL By: timothyja123 on Thu, 28 February 2013 20:55
		Re: Undocumented functions in IDL By: David Fanning on Thu, 28 February 2013 20:39
		Re: Undocumented functions in IDL By: David Fanning on Thu, 28 February 2013 20:33
		Re: Undocumented functions in IDL By: wlandsman on Thu, 28 February 2013 20:30
		Re: Undocumented functions in IDL By: timothyja123 on Thu, 28 February 2013 19:52
		Re: Undocumented functions in IDL By: Craig Markwardt on Fri, 01 March 2013 07:43

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