About Bison Error Recovery

[Michael]

hi all,

I am new to bison, and have a simple question.

In Bison grammar file, there are only rules like these:


============================================================

start: 
    | t_USE t_Identifier t_Semocolon
;

============================================================


Also I have a Target Language file:



============================================================

use a1;
use a2
use a3;

============================================================


Apparently, I wish to report error at the phrase 'use a2', and go on parsing


Then, what should I do with the grammar file, add 'error' bison-keywords to
implement this simple error recovery?


Thanks!