At 02:06 PM 8/29/2002 -0700, Steve Fink wrote: >On Thu, Aug 29, 2002 at 04:48:20PM -0400, Andy Dougherty wrote: > > On Thu, 29 Aug 2002, Steve Fink wrote: > > > > > - Adds %option nounput to imcc.l. This avoids a warning when > > > compiling the output file. This one is correct, at least. > > > > Hmm. Sun's lex(1) doesn't understand that line. Is there another easy > > way around the problem? If not, I'll try to think of some other way > > around it. > >Ugh. Well, I suppose we could always post-process the output to remove >the offending routine, but I don't know if that's going to have enough >in common. Does Sun's lex result in the same warning? If not, I guess >we only need to cut out flex's unput() definition.
I can live with the warning, as long as it compiles under traditional lex and flex. Don't waste too much effort polishing imcc since it will be getting a new interface eventually and might even be rewritten to self-host on Parrot at some point. (Hey I'm dreaming BIG) The same goes for the bison vs. yacc question. IMCC doesn't even require LR/LALR. The grammar is simple and isn't ambiguous so we can easily convert it to other tools or even hand-write it, but that would probably be counter-productive, so we probably should keep it as traditional yacc as possible. -Melvin
