int yylex(union YYSTYPE *yyval, struct ctf_scanner *scanner);
int yylex_init_extra(struct ctf_scanner *scanner, yyscan_t * ptr_yy_globals);
int yylex_destroy(yyscan_t yyscanner);
int yylex(union YYSTYPE *yyval, struct ctf_scanner *scanner);
int yylex_init_extra(struct ctf_scanner *scanner, yyscan_t * ptr_yy_globals);
int yylex_destroy(yyscan_t yyscanner);