#ifndef PDL_H
#define PDL_H
#include "nextgen.h"
#include <stdio.h>

#undef TRUE
#undef FALSE
#undef BOOL
#define TRUE 1
#define FALSE (!TRUE)

extern const char* _pdl_path;

extern int yylex(void);
extern int yyparse(void);
extern FILE* yyin;
FILE* file;
extern int yylex_destroy(void);

typedef struct record_s {
  char* string;   //!<  Hold the symbol that lex has found.
  int   lineno;   //!<  Hold the line number the symbol has been found.
} record_t;

/*!
 *  \brief Structure keeps track of the state and the true/false
 *         braches.
 *
 */
typedef struct rule_s {
  const char* state;         //!<  Name of the state.
  unsigned int lineno;       //!<  Line number where rule appeared.
  struct rule_s* true_branch;   //!<  Name of the true_branch, or 0 if none.
  struct rule_s* false_branch;  //!<  Name of the false_branch, or 0 if none.
} rule_t;

typedef struct policy_s {
  lcmaps_plugindl_t* current;
  lcmaps_plugindl_t* next_success;
  lcmaps_plugindl_t* next_failure;
  struct rule_s* head_rule;
} policy_t;

NG_RC pdl_init(const char*);
NG_RC pdl_term();
record_t* concat_strings(record_t*, record_t*);
record_t* concat_strings_with_space(record_t*, record_t*);

int yyerror(const char*);
void set_path(record_t*);
void add_policy(record_t*, rule_t*);
rule_t* add_rule(record_t*, record_t*, record_t*);
const char* pdl_path(void);
void remove_policy(record_t* policy);
void add_variable(record_t* name, record_t* value);
NG_RC allow_rules(int);
NG_RC allowed_policy_rule(const char* label);

#endif