Hi Ghislain, On adding the square brackets, Marklogic generates an exception
Unexpected token syntax error, unexpected Lbrack_, expecting Rpar_ Regards, Devesh ________________________________________ From: [email protected] <[email protected]> on behalf of Ghislain Fourny <[email protected]> Sent: Wednesday, August 12, 2015 1:08 PM To: MarkLogic Developer Discussion Subject: Re: [MarkLogic Dev General] Confusing behavior of '?' cardinality in arguments Hi Devesh, The cardinality in XQuery sequence types (be it ? * or +) gives you control on the acceptable number of items in each input sequence. In XQuery, the Kleene star and the question mark ? accept the empty sequence, but do not make the function argument optional, nor change the arity of the function (in your case, it is binary). Looking at the first function you give as an example, there are extra pairs of square brackets. This could be a MarkLogic-specific extension, that (I am speculating here, as I am discovering this syntax now, so anybody please feel free to correct me) may be a syntactic sugar (very convenient if I may say!) leading to the desired behavior by implicitly adding functions with lower arities. Have you tried to add square brackets like so? local:get-rdf-builder( [$prefix-map as map:map?], [$graph as sem:iri?]) as function(item(), item(), item()) as sem:triple I hope it helps. Kind regards, Ghislain On Wed, Aug 12, 2015 at 9:19 AM, Tyagi, Devesh <[email protected]> wrote: > a correction, function signature is > > > local:get-rdf-builder($prefix-map as map:map?, $graph as sem:iri?) as > function(item(), item(), item()) as sem:triple > > Regards, > Devesh > > ________________________________ > From: [email protected] > <[email protected]> on behalf of Tyagi, Devesh > <[email protected]> > Sent: Wednesday, August 12, 2015 12:45 PM > To: [email protected] > Subject: [MarkLogic Dev General] Confusing behavior of '?' cardinality in > arguments > > > Hi, > > > While using following function > > sem:rdf-builder( > [$prefixes as map:map?], > [$graph as sem:iri?] > ) as function(item(),item(),item()) as sem:triple > > we can invoke it as follows > > sem:rdf-builder(). > > But when I am creating my own function as follows > > local:get-rdf-builder($prefix-map as map:map*, $graph as sem:iri*) as > function(item(), item(), item()) as sem:triple > > and invoked it as > > local:get-rdf-builder() > > It raises the following exception > > get-rdf-builder() -- Too few args, expected 2 but got 0 > > Works fine for local:get-rdf-builder((),()). > > I am executing this in Marklogic QConsole. > > Any help would be appreciated. > > Regards, > > Devesh > > > "This e-mail and any attachments transmitted with it are for the sole use of > the intended recipient(s) and may contain confidential , proprietary or > privileged information. If you are not the intended recipient, please > contact the sender by reply e-mail and destroy all copies of the original > message. Any unauthorized review, use, disclosure, dissemination, > forwarding, printing or copying of this e-mail or any action taken in > reliance on this e-mail is strictly prohibited and may be unlawful." > "This e-mail and any attachments transmitted with it are for the sole use of > the intended recipient(s) and may contain confidential , proprietary or > privileged information. If you are not the intended recipient, please > contact the sender by reply e-mail and destroy all copies of the original > message. Any unauthorized review, use, disclosure, dissemination, > forwarding, printing or copying of this e-mail or any action taken in > reliance on this e-mail is strictly prohibited and may be unlawful." > > _______________________________________________ > General mailing list > [email protected] > Manage your subscription at: > http://developer.marklogic.com/mailman/listinfo/general > _______________________________________________ General mailing list [email protected] Manage your subscription at: http://developer.marklogic.com/mailman/listinfo/general "This e-mail and any attachments transmitted with it are for the sole use of the intended recipient(s) and may contain confidential , proprietary or privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this e-mail or any action taken in reliance on this e-mail is strictly prohibited and may be unlawful."
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