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Re: What subprogram? What parameters and keywords? [message #85647 is a reply to message #85639] Fri, 23 August 2013 08:09 Go to previous messageGo to previous message
Mats Löfdahl is currently offline  Mats Löfdahl
Messages: 263
Registered: January 2012
Senior Member
Den fredagen den 23:e augusti 2013 kl. 15:57:32 UTC+2 skrev Mats Löfdahl:
> Den fredagen den 23:e augusti 2013 kl. 14:52:28 UTC+2 skrev David Fanning:
>> Mats Löfdahl writes:
>
>>> Let's say IDL has just entered a subroutine or function. Is any of the following information available?
>
>>> 1. The name of the subprogram (like $0 in bash)
>>> 2. The parameters as an array or struct or similar (kind of like $*), preferably including keywords.
>
>> You can find two useful programs in the Coyote Library. WhoAmI returns
>> the name of the program module the WhoAmI program is called in, and
>> WhoCalledMe identifies the name of the program module that called the
>> routine you are now in.
>
>> There is no parameter stack that I am aware of, although it wouldn't
>> surprise me if the Scope_*** routines could figure it out.
>
> Thanks, that solves the first part of the problem! I'll read up on scope_*** and see if I can figure something out for the second part.

I didn't give much detail in my original post, but what I'm trying to do is make a subroutine that writes a log file with as much info as possible about the subprogram it was called from, without having been explicitly told very much. So David's WhoCalledMe is actually better than what I asked for.

And reading up on scope_*** and related routines was good advice, too. Looks like I could do something like this:

* Get the subprogram name from name=WhoCalledMe()
* Get the names of parameters and keywords from routine_info(name,/parameters)
* Get the level of the calling function from scope_level()-1
* Get the current values of the parameters and keywords from scope_varfetch

I haven't tried all the steps yet but it looks promising.

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