retrieving the results of a reentrant lexing without file i/o
void scanProcedure(...threadInfo...) {
   yyscan_t tscanner;

   yylex_init(tscanner);
   yy_scan_string(threadInfo->lexMe, tscanner);
   yylex(tscanner);

   /* how to retrieve results of lexing in a
      reentrant manner ( no global state info )
      without having to do any file i/o */

   /* threadInfo-> ?? */

   yylex_destroy(tscanner);
}

...

pthread_create( ... scanProcedure ... threadInfoA ... );
pthread_create( ... scanProcedure ... threadInfoB ... );
pthread_create( ... scanProcedure ... threadInfoC ... );

pthread_join( ... );