| Re: Reading Others Code [message #60656 is a reply to message #60558] |
Wed, 28 May 2008 12:32  |
Douglas G. Dirks
Messages: 10
Registered: October 2006
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Junior Member |
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mgalloy@gmail.com wrote:
> On May 22, 1:25 pm, David Fanning <n...@dfanning.com> wrote:
>> A friend of mine and I have been reading each others
>> IDL code lately. It's truly amazing what you can learn
>> by doing this!
>>
>> Anyway, I have this line of code in one of my programs:
>>
>> HELP, CALLS=callstack
>>
>> He was flabbergasted. Apparently, this keyword is not
>> documented. I'm dumbfounded, too, since I don't usually
>> use undocumented code.
>>
>> Here is my question. Was this ever documented? Does
>> anyone else know about this?
The CALLS keyword to HELP was declared obsolete in IDL 6.2,
replaced by the use of SCOPE_TRACEBACK (and probably REVERSE).
Changes like this are noted in the Version History table at the
end of the routine's documentation, at least since IDL 5.6 or so.
> 2. I recently needed to know the routines that have been added to
> IDL since 6.1 (updating the known routines for the TextMate IDL
> plugin). It would be nice to not have to install four versions of IDL
> to answer these questions. The online help is HTML-based. Why can't I
> just look these things up on the ITT VIS website?
There is a chapter in the IDL Reference Guide titled "Obsolete Features"
that lists all of the features *removed* (in the sense that they are
no longer supported or documented). We can look into the possibility of
creating a similar section that collects the history of things *added*
to IDL over time.
Regards,
Doug
----------------
Douglas G. Dirks
IDL Documentation Group * ITT Visual Information Solutions
4990 Pearl East Circle * Boulder, CO 80301
ddirks@ittvis.com
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