Topic: The total of nonblank elements of recursions
It is used XSLT 1.0. Is XML:
<root> <SUM_1> 10 <SUM_1> <SUM_2> 7 <SUM_2> <SUM_5> <SUM_5> <SUM_6> 3 <SUM_6> <SUM_11> 1 <SUM_11> <SUM_15> 12 <SUM_15> <root>
In total elements SUM _ <N> can be 15. There can be everything, there can be some, some can be empty.
It is necessary to count the total of all elements. I know that the task c the help of a recursion dares, but the further advancements on this subject of result did not give. Help, please.