Bison behavior incompatible with yacc

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1 total messages Started by Tom Friedel Sat, 12 Aug 1989 23:50

#360

Author: Tom Friedel
Date: Sat, 12 Aug 1989 23:50

21 lines
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After a very long time I have come to the conclusion that bison
may not work if you have useless productions in your grammar.
Yacc will simply ignore these, after warning the user.  Bison also
warns.

Mail me if you want my specific example.  

The doc's say that bison is upward compatible for properly written
grammar.  I don't beleive that a useless rule constitutes an 
improper grammar.

Thanks,

Tom



-- 
Tom Friedel             Public Access Unix BBS
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