Date: Mon, 02 Aug 2004 23:51:15 -0400
Mime-Version: 1.0
Content-Type: text/plain; format=flowed
Aha! =)
The last suggestion worked great (thanks!). But still, I still have a small
problem. It won't accept more than one 'statement'. I know why, but can't
fix it. Take a look:
$ ./a.out
7 + 9 + 7 + 3 / (5 + 7);
23.25
3 + 3 + 3;
Fatal Error: Parser is hopelessly lost...
Now, I know why, because my grammar look like this:
in ::= stmt ENDLINE.
stmt(A) ::= expression. { printf("%u\n", a); }
expression(A) ::= INTEGER(B). { A = B; }
expression(A) ::= expression(B) PPLUS expression(C). { A = B + C; }
expression(A) ::= expression(B) PSUB expression(C). { A = B - C; }
...etc...
Now its obvious why that will only accept one statement, but how to fix it?
SQLite doesn't offer any help here because the parser seems to be
reinitialized each statement, but that really isn't an option in my case.
Is there any way? In bison, you can simply make the start token right
recursive (like in my last message):
in ::= in stmt ENDLINE.
But that doesn't seem to work in lemon. I've also tried making the 2nd
statement right recursive, but that doesn't work either because it doesn't
seem to ever reduce all the way.
Any ideas? Much thanks to all.
John
_________________________________________________________________
Planning a family vacation? Check out the MSN Family Travel guide!
http://dollar.msn.com
