Evaluates the supplied function cumulatively on successive values of the supplied array.
array:fold-right( $array as array(*),$zero as item()*,$function as function(item()*, item()*) as item()*item()*The effect of the function is equivalent to the following recursive definition:
if (array:size($array) eq 0)
then $zero
else $function( array:head($array),
array:fold-right(array:tail($array), $zero, $function)
)
The expression array:fold-right([true(), true(), false()], true(), function($x, $y){$x and $y}) returns false().
The expression array:fold-right([true(), true(), false()], false(), function($x, $y){$x or $y}) returns true().
The expression array:fold-right([1,2,3], [], function($x, $y){[$x, $y]}) returns [1, [2, [3, []]]].
If the supplied array is empty, the function returns $zero.
If the supplied array contains a single member $m, the function returns $function($m, $zero).
If the supplied array contains two members $m and $n, the function returns
$function($m, $function($n, $zero)); and similarly for an input array with more than two members.
