Re: get variables name

["R.Bauer" <R.Bauer(at)fz-juelich.de>]

"J.D. Smith" wrote:
> 
> David Fanning wrote:
> >
> > R.Bauer (R.Bauer@fz-juelich.de) writes:
> >
> > > I like to know the name of a variable which is submitted as input to a
> > > procedure
> > >
> > > e.g
> > >
> > > pro test,var
> > > help,var
> > > end
> > >
> > > a=1
> > > test,a
> > >
> > > Is it possible to get inside test the information that test was called
> > > with a.
> >
> > My life is totally out of control at the moment, so I haven't
> > had the opportunity to write this up for my web page, but
> > here is part of a correspondence I recently received from
> > Paul Woodford, an IDL user, concerning the undocumented
> > ROUTINE_NAMES function:
> >
> >    routine_names(variables=0) - variable names at current level
> >    routine_names(variables=1) - variable names at main level
> >    routine_names(variables=2) - variable names at one level down from main
> >    routine_names(variables=-1) - variable names at one level up from current
> >    routine_names(variables=-2) - variable names at two levels up from current
> >
> >    But wait, that's not all...  Take a look at how routine_names is used in
> >    gethelp - you can use routine_names to actually fetch a variable from a
> >    different level.  For instance, if you have a variable named 'blah' one
> >    level up from your current level, you can get it using
> >
> >    blah_here = routine_names('blah', fetch=-1)
> >
> < wise cautionary matter clipped>
> 
> But wait... that'still not all!
> 
> By poking around in the library, I found:
> 
> pro foo,a
>    print,routine_names(a,/ARG_NAME)
> end
> 

That's what I need.

I am using it now in this way.

clevel = ROUTINE_NAMES(/LEVEL)
in_name=routine_names(data,ARG_NAME=clevel-1)

R.Bauer