19void x_init_lexer(std::istream &in,
const std::string &filename);
23void xyyerror(
const std::string &msg);
24void xyyerror(
const std::string &msg,
int line_number,
int col_number,
25 const std::string ¤t_line);
26void xyywarning(
const std::string &msg);
30extern int x_line_number;
31extern int x_col_number;
32extern char x_current_line[];