#ifndef PARSE_H
#define PARSE_H

typedef union {
  long alignment;
  char ag_vt_2[sizeof(int)];
  char ag_vt_4[sizeof(struct LocaleNode *)];
  char ag_vt_5[sizeof(unsigned)];
  char ag_vt_6[sizeof(Object *)];
  char ag_vt_7[sizeof(struct String *)];
} parse_vs_type;

typedef enum {
  parse_WhiteSpace_token = 1, parse_StringBody_token = 3,
  parse_LineParse_token, parse_Terminated_Line_token, parse_Line_token = 8,
  parse_VariableList_token = 12, parse_Group_token = 14,
  parse_VariableDecl_token = 17, parse_Comparison_token = 19,
  parse_Comparisons_token, parse_VariableListWork_token = 22,
  parse_VariListMemb_token, parse_VariNum_token = 27,
  parse_Assignment_token, parse_Expression_token = 32,
  parse_FunctionCall_token, parse_ArgumentList_token, parse_Product_token,
  parse_PowerFactor_token = 38, parse_Factor_token = 40,
  parse_ALNUM_token = 43, parse_WS_token, parse_WSDISREGARD_token,
  parse_ANYTHING_token = 47, parse_VariNumStr_token = 58
} parse_token_type;

typedef struct parse_pcb_struct{
  parse_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[1000];
  parse_vs_type vs[1000];
  int ag_ap;
  const char *error_message;
  char read_flag;
  char exit_flag;
  int bts[1000], btsx;
  int lab[7], rx, fx;
  const unsigned char *key_sp;
  int save_index, key_state;
  char ag_msg[82];
} parse_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 parse_pcb_type parse_pcb;
void init_parse(void);
void parse(void);
#endif