Partly implemented XPath functions

Node-set functions

last()
Not fully implemented if you use Node collection, or Message collection outside the Event. In these cases, the function will not return the correct value, unless the current node is the last node.

count()
Not fully implemented if you use Node collection, or Message collection outside the Event. In these cases, the function will return 0 or 1 depending on whether the argument resulted in a node set or not.

String functions

substring()
Unicode characters that cannot be unambiguously represented, are not handled correctly.

Number functions

sum()
Not fully implemented if you use Node collection, or Message collection outside the Event. In these cases, StreamServe only supports node sets that contain one node.

round()
The value -0.0 is not handled correctly.