struct psi_parser *psi_parser_init(struct psi_parser *P, psi_error_cb error, unsigned flags);
struct psi_parser_input *psi_parser_open_file(struct psi_parser *P, const char *filename, bool report_errors);
struct psi_parser_input *psi_parser_open_string(struct psi_parser *P, const char *string, size_t length);
struct psi_parser *psi_parser_init(struct psi_parser *P, psi_error_cb error, unsigned flags);
struct psi_parser_input *psi_parser_open_file(struct psi_parser *P, const char *filename, bool report_errors);
struct psi_parser_input *psi_parser_open_string(struct psi_parser *P, const char *string, size_t length);