SAX in a nutshell
- SAX is a protocol: It defines generic functions signifying events when walking over an XML document. Event is a fancy name for a function call.
- You handle SAX by defining CLOS methods for those events that you are interested in. Conversely, you generate SAX events by calling the functions.
- The first argument is always the SAX handler, usually an (indirect) instance of SAX:ABSTRACT-HANDLER.
|SAX:START-ELEMENT (handler uri lname qname attrs)||generic function|
|SAX:END-ELEMENT (handler uri lname qname)||generic function|
|SAX:CHARACTERS (handler data-string)||generic function|