catch the error in the grammar

[darkstar]

i try to catch the error position, and give out in an error File:


stmnts:   primary_terminal exp '\n'      {/* read something...*/ }
             | primary_terminal error '\n' {/* give out the eror line for
exp */; yyerrok;}
             |  primary_terminal exp error {/* give out the eror line for
newline */; yyerrok;}

if i try to give out the errorline for  primary_terminal by adding a new
opition: error exp '\n' {/* give out the eror line for primary_terminal */;
yyerrok;},
so caused the rule stmnts  conflicts.

how will that be agreed?
-- 
View this message in context: 
http://www.nabble.com/catch-the-error-in-the-grammar-tf2225882.html#a6168211
Sent from the Gnu - Bison - Help forum at Nabble.com.