Hi, I have some questions about using user-defined MAL functions

I would like to create a function in MAL. 1) Is it possible that the function can take variable number of BATs as argument like in the case of algebra.joinPath(l:bat[:any,:any]... ) ? Yes, define it as a pattern, which gives you full control over the structure. 2) If yes, how I can get the number of BATs passed as argument and

On 3/22/11 1:02 PM, Petros Tsialiamanis wrote: p->argc- p->retc, look at the implementation of joinPath for inspiration.

3) how I can get the n-th element of the argument? getArg(p,k) gives you the index for lookup in the stackframe.

regards,Martin

Thank you in advance Petros

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