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| Related articles |
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| left or right association for unary operators??? news@ono.com (Antonio López Torres) (2003-05-29) |
| Re: left or right association for unary operators??? haberg@matematik.su.se (2003-06-03) |
| From: | "Antonio López Torres" <news@ono.com> |
| Newsgroups: | comp.compilers |
| Date: | 29 May 2003 03:28:53 -0400 |
| Organization: | Compilers Central |
| Keywords: | parse, question, comment |
| Posted-Date: | 29 May 2003 03:28:53 EDT |
I would like to know if there is any diference between declaring
NOT token as %left or %right in the next grammar and why if i
declare as %token exists 2 shift/reduce conflicts.
expr
: expr
| expr AND expr
| expr OR expr
| NOT expr
| (expr)
;
Thank you.
[Without the precedence, expressions are ambiguous:
NOT A AND B is it (NOT A) AND B or NOT (A AND B) ?
-John]
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