Event callbacks for every Tag

Hi, I am new user of the expat library. My application requires different code to be run on different xml tags when they are found and on the fly. I have learned expat is event driven, but only one function is calledback on every tag found (endElement). My question is, can expat callback different functions based on tag found, meaning a unique callback for every tag. Is that possible?
Please help me out

any help is greatly appreciated

thanks
Mandeep