[Click] Detecting given optional arguments

[Bart Braem]

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.
Fax: +32 (0)3 265.37.77.
Web: www.pats.ua.ac.be
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