XSLT replace value

Question

I have an XML like this

Answer 1

Basically you want an identity transform, with override rules.

The following transform

    
        
            
        
    

    Y

applied to your input, produces the result:

   Y
   Add1
   Add2

The first template is an identity transform, which copies the input document exactly.

The second template overrides text nodes with a value of X that are children of a PrintDollarsAndCents template. Note that it emits the value Y instead of its actual content.