Hello, We have encountered a data format that requires use of the XPath sum function, but it appears that this is not supported.
The data format of interest is the Minefield Data PDU as described by IEEE STD 1278.1a-1998 section 5.3.10.3. It includes a sequence of integer fields that describe the number of trip detonation wires for mines described by the PDU. The values of these fields need to be summed to determine the occursCount for a subsequent sequence of integer fields that describe the number of vertices per trip detonation wire. Then these fields need to be summed to determine the occursCount for a subsequent sequence of vertices. It may also be possible to support this data type with a combination of the count and position functions but I haven't pursued this enough to know whether it is feasible for not, and it appears that the position function is not supported. Is there any reason why the sum function is not supported? Do you know of some other way to support this data type? Marshall Miller
