What is the best reference for yacc available? I have the O'Reilly "lex & yacc" book and S. C. Johnson's 1978 paper from the 7th Edition manual, but is there something that more closely reflects Plan 9 yacc? (Besides the unavailable 10th Edition manual, I mean). Is there somewhere a list of changes in yacc between 1978 and 1990?
Nothing you should depend on has changed. I am sure the O'Reilly book suffices. Russ
