Bernd Militzer wrote:
> Am 27.07.2006 um 07:54 schrieb Aditya Mahajan:
>
>
>>You can also do
>>
>>\def\PID[#1]#2[#3]{\getparameters[PID#1][#3]}
>>% #2 is to gobble spaces
>
>
> thanks for that hint Aditya!
There is also this (more formal) solution:
\def\PID{\dodoubleempty\doPID}
\def\doPID[#1][#2]{\getparameters[PID#1][#2]}
The core internal macro \dodoubleempty creates empty []
groups if they are not provided in the input. There is
also \dosingleempty etc, upto \doseventupleempty
Cheers, Taco
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