Nested conditional if else statements in xpath

Question

I have this XML:

    No
    Yes
    
           


        

Answer 1

Spent all day today, but works for me this is for Xpath 1.0:

concat(
substring(properties/property[@name="Headline"], 1, string-length(properties/property[@name="Headline"]) * 1), 
substring(properties/property[@name="Name"], 1, not(number(string-length(properties/property[@name="Headline"]))) * string-length(properties/property[@name="Name"]))
)