
/* ------------------------ linklist.h ------------------------ */

typedef struct node {
	struct node *pfwd;	/* ptr to next node in list */
	struct node *pbwd;	/* ptr to prev node in list */
	char *pstring;	/* ptr to node's string value */
	unsigned count;	/* occurrence count */
} Node;

Node *get_free_node(void);
void put_free_node(Node *pnode);
Node *locate_node(const char *pstring, int match);

void add_node(void);		/* action functions */
void count_nodes(void);
void display_node(void);
void dump_asc_nodes(void);
void dump_des_nodes(void);
void help(void);
void modify_node(void);
void myexit(void);
void remove_node(void);

#define EXACT 1			/* locate_node match flags */
#define INEXACT 2

/* ------------------------------------------------------------ */

