/* pbm.h

 * Copyright (c) 1998 Tim Norman.  See LICENSE for details

 * 2-25-98

 *

 * Mar 18, 1998  Jim Peterson  <jspeter@birch.ee.vt.edu>

 *

 *     Restructured to encapsulate more of the PBM handling.

 */

#ifndef _PBM_H

#define _PBM_H

#include <stdio.h>

typedef struct

{

  FILE* fptr;

  enum { none, P1, P4 } version;

  int width, height;

  int current_line;

  void *revdata;

  int unread;

} pbm_stat;

int make_pbm_stat(pbm_stat*,FILE*);

int pbm_readline(pbm_stat*,unsigned char*); 

  /* reads a single line into char* */

void pbm_unreadline(pbm_stat*,void*); /* pushes a single line back */

#endif