#ifndef DATE_P1_H
#define DATE_P1_H

typedef enum {
  chkdate_white_space_token = 1, chkdate_date_string_token = 5,
  chkdate_date_token, chkdate_eof_token, chkdate_punct_token = 11,
  chkdate_matchPunctuation_token = 14, chkdate_letter_token = 17,
  chkdate_punctuation_token = 31, chkdate_i_token = 33, chkdate_x_token,
  chkdate_v_token, chkdate_units_token, chkdate_number_token = 41,
  chkdate_month_token, chkdate_roman_token = 46
} chkdate_token_type;

typedef struct chkdate_pcb_struct{
  chkdate_token_type token_number, reduction_token, error_frame_token;
  int input_code;
  int input_value;
  int line, column;
  int ssx, sn, error_frame_ssx;
  int drt, dssx, dsn;
  int ss[128];
  int vs[128];
  int ag_ap;
  const char *error_message;
  char read_flag;
  char exit_flag;
  int bts[128], btsx;
  unsigned char * pointer;
  unsigned char * la_ptr;
  const unsigned char *key_sp;
  int save_index, key_state;
} chkdate_pcb_type;

#ifndef PRULE_CONTEXT
#define PRULE_CONTEXT(pcb)  (&((pcb).cs[(pcb).ssx]))
#define PERROR_CONTEXT(pcb) ((pcb).cs[(pcb).error_frame_ssx])
#define PCONTEXT(pcb)       ((pcb).cs[(pcb).ssx])
#endif

#ifndef AG_RUNNING_CODE
/* PCB.exit_flag values */
#define AG_RUNNING_CODE         0
#define AG_SUCCESS_CODE         1
#define AG_SYNTAX_ERROR_CODE    2
#define AG_REDUCTION_ERROR_CODE 3
#define AG_STACK_ERROR_CODE     4
#define AG_SEMANTIC_ERROR_CODE  5
#endif

extern chkdate_pcb_type chkdate_pcb;
void init_chkdate(void);
void chkdate(void);
#endif