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#ifndef __BUFF_H__
#define __BUFF_H__
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define E fprintf(stderr, "?\n")
#define CHECKADDR if (addr1 < addr2){ E; break;}
typedef struct line_t {
char *c;
unsigned int s;
struct line_t *prev;
struct line_t *next;
} line_t;
extern line_t *b_start;
extern line_t *b_end;
extern line_t *cur;
extern int num;
extern int pos;
extern int addr1, addr2;
extern char *fname, mod;
extern line_t *marks[26];
int read_lines(FILE *);
void print_lines(char);
void print_cur_line(char);
int move_to_line(int, char);
void print_lineno();
void append_lines();
void insert_lines();
void delete_lines();
int write_lines(char);
int read_file();
int match(char **, char);
int mark(char *c);
int get_lineno(line_t*);
void transfer_lines(int, char);
void exec_command(char*, FILE*);
#endif /* __BUFF_H__ */
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