xslt: substring-before

Question

I have the folowing xml code:

14 3
12
7 3 78         


        

Answer 1

You can use functx:substring-before-if-contains

The functx:substring-before-if-contains function performs substring-before, returning the entire string if it does not contain the delimiter. It differs from the built-in fn:substring-before function, which returns a zero-length string if the delimiter is not found.

Looking at the source code, it's implemented as follows: