Function signature

I propose the following change to FunctionSignature.java:

Index: src/org/exist/xquery/FunctionSignature.java
===================================================================
RCS file: 
/cvsroot/exist/eXist-1.0/src/org/exist/xquery/FunctionSignature.java,v

retrieving revision 1.1
diff -r1.1 FunctionSignature.java
88c88,95
<               return arguments != null ? arguments.length : 0;
---
>         if (arguments == null || arguments.length == 0)
>             return 0;
>
>         int len = arguments.length;
>         if ((arguments[len - 1].getCardinality() & Cardinality.ZERO) == 
> Cardinality.ZERO)
>             return len - 1;
>         else
>             return len;

which will correctly assess the number of required arguments in:

fn:blah($a as xs:string, $b as xs:string*)

(there is ONE required argument, not TWO).

I'll commit if there are no objections...


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