#ifndef BCIP_H
#define BCIP_H

#ifndef AG_OBJECT_WRAPPER_DEFINED
#define AG_OBJECT_WRAPPER_DEFINED

#ifndef AG_PLACEMENT_DELETE_REQUIRED
#if _MSC_VER >= 1200 || __INTEL_COMPILER
#define AG_PLACEMENT_DELETE_REQUIRED 1
#endif
#endif

template <class Object>
class AgObjectWrapper {
  Object object;
public:
  void operator delete(void *) {}
  void *operator new(size_t, void *p) { return p;}
#if AG_PLACEMENT_DELETE_REQUIRED
  void operator delete(void *, void *) { }
#endif
  AgObjectWrapper(const Object &o) : object(o) {}
  ~AgObjectWrapper() {}
  operator Object &() {return object;}
};

#endif

typedef union {
  double alignment;
  char ag_vt_2[sizeof(int)];
  char ag_vt_4[sizeof(AgObjectWrapper<CodeFragment >)];
  char ag_vt_5[sizeof(double)];
} bciParse_vs_type;

typedef enum {
  bciParse_white_space_token = 1, bciParse_input_string_token = 4,
  bciParse_statements_token, bciParse_eof_token, bciParse_statement_token,
  bciParse_open_statement_token, bciParse_closed_statement_token,
  bciParse_if_clause_token, bciParse_while_clause_token = 12,
  bciParse_expression_token = 15, bciParse_simple_statement_token = 18,
  bciParse_assignment_expression_token = 24,
  bciParse_conditional_expression_token = 26,
  bciParse_logical_or_expression_token = 32,
  bciParse_logical_and_expression_token = 35,
  bciParse_equality_expression_token = 37,
  bciParse_relational_expression_token = 39,
  bciParse_additive_expression_token = 42,
  bciParse_multiplicative_expression_token = 47,
  bciParse_unary_expression_token = 50, bciParse_factor_token = 53,
  bciParse_primary_token, bciParse_simple_real_token = 71,
  bciParse_exponent_token = 74, bciParse_integer_part_token,
  bciParse_fraction_part_token = 77, bciParse_digit_token = 79,
  bciParse_name_string_token, bciParse_letter_token,
  bciParse_name_token = 100, bciParse_real_token = 120
} bciParse_token_type;

typedef struct bciParse_pcb_struct{
  bciParse_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];
  bciParse_vs_type 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;
  char ag_msg[82];
/*  Line -, bcip.syn */
    AgStringDictionary *symbolDictionary;
    AgStack<double> realList;                         // List of real constants
    int compile(AgStringDictionary *, AgString);
    CodeFragment code;

    AgCharStack charStack;           // Stack to accumulate variable names
    int locateVariable(int k);    // Identify variable named on character stack
    int stashReal(double);
    CodeFragment codeIfElse(CodeFragment &, CodeFragment &, CodeFragment &);
    CodeFragment codeWhile(CodeFragment &, CodeFragment &);
    CodeFragment codeDoWhile(CodeFragment &, CodeFragment &);
    CodeFragment codeFor(CodeFragment &, CodeFragment &, CodeFragment &, CodeFragment &);
  } bciParse_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
void init_bciParse(bciParse_pcb_type *);
void bciParse(bciParse_pcb_type *);

CodeFragment bciParse_value(bciParse_pcb_type *);
#endif