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Re: Keyword abbreviation ambiguities [message #38924 is a reply to message #38921]

Mon, 05 April 2004 04:47

mwvogel
Messages: 9
Registered: February 2003

Junior Member

Dear All/Craig,

>> One way to overcome this would be to use the _EXTRA keyword. One of many
>> options would be
>>
>> function testfunc, _EXTRA=e
> ...
>
> Greetings, it's true that one can use the _EXTRA keyword explicitly,
> i.e. by directly passing a structure through _EXTRA. However, the
> _EXTRA keyword processing still doesn't allow us to do the desired
> thing, which is:
>
> testfunc, title='a', title1='b'

Using the code below I get the following on my system
IDL> print, !VERSION
{ x86 Win32 Windows 5.4 Sep 25 2000 32 64}
IDL> help, testfunc( title='a', title1='b')
ab
<Expression> INT = 0

I feel this code should work cross platform, but have not tested it. Of
course Craig Markwardt and M. Katz were right pointing out that the explicit
definition as originally requested will not work.

code :
function testfunc, _EXTRA=e
;title=t,
;title1=t1
FOR i=0,N_TAGS(e)-1 DO $
CASE (TAG_NAMES(e))[i] OF
'TITLE' : t = e.title
'TITLE1': t1 = e.title1
ENDCASE
print, t, t1
return, 0
end

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[Message index]

		Re: Keyword abbreviation ambiguities By: R.Bauer on Mon, 05 April 2004 06:38
		Re: Keyword abbreviation ambiguities By: R.Bauer on Mon, 05 April 2004 06:10
		Re: Keyword abbreviation ambiguities By: mwvogel on Mon, 05 April 2004 04:47
		Re: Keyword abbreviation ambiguities By: Craig Markwardt on Mon, 05 April 2004 02:47
		Re: Keyword abbreviation ambiguities By: mwvogel on Mon, 05 April 2004 01:48
		Re: Keyword abbreviation ambiguities By: MKatz843 on Sun, 04 April 2004 18:10
		Re: Keyword abbreviation ambiguities By: Craig Markwardt on Sun, 04 April 2004 08:07

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