[antlr-interest] [c target] some questions about errors catching

[Юрушкин Михаил]

good day.
I have some questions about an errors-processing alogirthm in Antlr:

1) Antlr generates strange code. If no alternatives are right, it does the  
following:

	    ...
             default:
                 CONSTRUCTEX();
                 EXCEPTION->type         = ANTLR3_NO_VIABLE_ALT_EXCEPTION;
                 EXCEPTION->message      = (void *)"";
                 EXCEPTION->decisionNum  = 34;
                 EXCEPTION->state        = 0;


                 goto ruleattr_specEx;
             }


- initializes exception... and CLEANS some information. Why?

2) after the finishing of processing nonterminal
rec->state->errors_count = 0 Why?? It has detected an error already.

-- 
Best regards,
Michael