Hello,
I tried the following Expression:
myNode != 'whatever'
which returns true!
If there is no myNode, then this expression must allways be false, according to the XPath specification:
"If one object to be compared is a node-set and the other is a string, then the comparison will be true if and only if there is a node in the node-set such that the result of performing the comparison on the string-value of the node and the other string is true", so if the node-set is empty, there can't be a node that is !='whatever'.
Well, when I have no myNode, LibXSLT retuns true!?!
Best regards
Sven