Re: if then else shift/reduce Syndrome

tim@franck.Princeton.EDU (Tim Hollebeek)
13 Feb 1996 18:07:47 -0500

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if then else shift/reduce Syndrome tarnwb@holly.colostate.edu (Tarn Burton) (1996-02-13)
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Re: if then else shift/reduce Syndrome tarnwb@holly.colostate.edu (Tarn Burton) (1996-02-16)
Re: if then else shift/reduce Syndrome meissner@cygnus.com (Michael Meissner) (1996-02-21)
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From: tim@franck.Princeton.EDU (Tim Hollebeek)
Newsgroups: comp.compilers
Date: 13 Feb 1996 18:07:47 -0500
Organization: Princeton University
References: 96-02-123
Keywords: yacc, syntax

Tarn Burton (tarnwb@holly.colostate.edu) wrote:
: Does anyone know how to get rid of the bison shift/reduce conflict in
: the C if then else.


%token IF
%nonassoc LOWER_THAN_ELSE
%nonassoc ELSE


cond: IF '(' expression ')' statement optional_else_part


optional_else_part: /* empty */ %prec LOWER_THAN_ELSE
| ELSE statement


Tim Hollebeek
Princeton Univ. | email: tim@wfn-shop.princeton.edu
-------------------| http://wfn-shop.princeton.edu/~tim (NEW! IMPROVED!)
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