go back to initial state - yyparse()

[falcore]

Hello,


I wonder if you could give me some kind of advice using bison.


I´m using a parser to analize strings introduced interactively from the
standard output. There is a call to yyparse() inside a loop, something like
that


while(.....){

.....

.....

yyparse();

.....

.....

}


Well, the first time is called works fine, but in consecutively calls, the
parser fails.

It fails because the internal state and the stack do not restart themselves.


To restart it i have to introduce another string that obviously will produce
an error

because you are in a final state and forces the parser to go back to state 0
with an empty stack


There is some way to restart the parser manually after recognition of a
correct string ?


thank you for your time


falcore