Hi David, Can an `expr` match something that starts with `ID OPENP` and/or `ID GETS`? Perhaps you can post your entire grammar? Or at least the `expr` rule?
Regards, Bart. On Thu, May 26, 2011 at 7:02 PM, David Smith <david.sm...@cc.gatech.edu>wrote: > I am having a difficult time distinguishing two legal lines of code: > ID = expression > and > ID(exp1, exp2, ...) = expression > I tried this rule: > stat: expr NEWLINE -> expr > | (ID OPENP .* CLOSEP GETS) > => ID OPENP actualParameters CLOSEP GETS expr NEWLINE > -> ^(INDEX ID OPENP actualParameters CLOSEP expr) > | ID GETS expr NEWLINE -> ^(GETS ID expr) > | NEWLINE -> > ; > But it says that alternatives 2 and 3 can never be matched. How do I > "reactivate" 2 and 3? > > DMS > > > David M. Smith http://www.cc.gatech.edu/fac/David.Smith > Georgia Institute of Technology, College of Computing > Sent from my ASR-33 Teletype > > > List: http://www.antlr.org/mailman/listinfo/antlr-interest > Unsubscribe: > http://www.antlr.org/mailman/options/antlr-interest/your-email-address > List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
