[Click] Detecting given optional arguments

[Eddie Kohler]

Hi Bart,

It is not possible to know what optional arguments have been given.   
It IS possible to know which keywords have been given, with  
cpConfirmKeywords.  This adds an extra boolean result, before the  
actual result argument, that is set to true if the named keyword was  
supplied.  See elements/userlevel/progressbar.cc.

Also, I'd highly recommend you prefer keyword arguments to optional  
arguments.  They are nicer to the user and more self documenting.

Eddie




On Jan 12, 2006, at 2:51 AM, Bart Braem wrote:

> Hello,
>
> Perhaps a stupid question: is it possible to know which optional  
> arguments
> have been given?
>
> Thanks for your help
> Bart
> -- 
> Bart Braem
> PATS research group
> Dept. of Mathematics and Computer Sciences
> University of Antwerp
> G2.36, Building G
> Middelheimlaan 1
> 2020 Antwerpen, Belgium
> Phone: +32 (0)3 265.35.19.
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