More Array Troubles: Syntax Subtlety That I'm Missing

ekimber at contrext.com> wrote: >I have this recursive function that takes an array as its second >parameter: > > >declare function lmm:applyScopesToNames( > $keyNames as xs:string+, > $keyScopes as array(*), > $qualifiedNames as xs:string*) as xs:string* { > let $result := > if (array:size($keyScopes) = 0) > then $qualifiedNames > else > let $newNames := > for $name in $keyNames > return for $scopeName in $keyScopes(1) > return $scopeName || "." || $name > return lmm:applyScopesToNames( > $newNames, > array:tail($keyScopes), > ($qualifiedNames, $newNames) > ) > return $result >}; > > > >Testing with this input: > >let $keyName := "base" >$keyScopes := [("s3", "s4"), ("s1", "s2")] > >This call: > >let $qualifiedNames := > lmm:applyScopesToNames( > ($keyName), > $keyScopes, > ()) > > >Results in the message "Item expected, sequence found: [("s3", "s4"), >("s1", "s2")]." > >Unfortunately, the BaseX interactive query tool doesn't report the line >that produces the message, but the only place I'm passing the full array >is in the initial call to the function from my test query. > >I've also verified that if I pass in [] as the keyScopes parameter then I >get the expected result (that is, the value of the 3rd parameter is >returned). > >I've verified that $keyScopes is an array of two sequences and as far as I >can tell I'm passing arrays where arrays are expected so I'm not sure what >my error is, but there must be one. > >Thanks, > >Eliot > >---- >Eliot Kimber, Owner >Contrext, LLC >http://contrext.com > > > >