[antlr-interest] Syntactic predicate for additive Expression

[e_mani9]

hi,
  I had conflict between additive expression and unary expression, 
so i used syntactic predicate to fix it. Now the additive expression 
works with right associativity, i would like it to work with left 
associativiy.
My grammer is :

AddExpr : (MulExpr (ADD | SUB))=>
           MulExpr (ADD | SUB) AddExpr
           | MulExpr ;

MulExpr : UnaryExpr (( MUL | DIV) UnaryExpr)* ;

UnaryExpr : (ADD | SUB) UnaryExpr
            | PowerExpr ;

Can anybody suggest "how to fix the associativity" or a new grammer 
for additive expression.

-- mani




 
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