13. The system of claim 8 further comprising a read cursor indicating the position within the parsed SGML tree that said reader is currently outputting.
13. The system of claim 8 further comprising a read cursor indicating the position within the parsed SGML tree that said reader is currently outputting. 14. The system of claim 13 wherein the position of the read cursor can be changed, causing a different position of the parsed SGML document to be output.