#ifndef T201A_H
#define T201A_H

typedef enum {
  t201a_name_token = 1, t201a_letter_token, t201a_hex_digit_token = 4,
  t201a_text_token, t201a_digit_token, t201a_hex_number_token = 9,
  t201a_number_token = 11, t201a_token_token, t201a_printable_token = 14,
  t201a_nonprintable_token = 16, t201a_universe_token = 18,
  t201a_grammar_token, t201a_eof_token
} t201a_token_type;

typedef struct t201a_pcb_struct{
  t201a_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;
  int lab[3], rx, fx;
  const unsigned char *key_sp;
  int save_index, key_state;
  char ag_msg[82];
  const  int *ag_dtl;
  int ag_dsn;
} t201a_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 t201a_pcb_type t201a_pcb;
void init_t201a(void);
void t201a(void);
#endif