#ifndef _DATASTRUCT_H_5ebc0f27_
#define _DATASTRUCT_H_5ebc0f27_

#include "memstream.h"

typedef enum {
	  HLT_COMMON = 1,
	  HLT_FROM,
	  HLT_TO,
	  } HLT;

typedef struct fil FIL; /* stdio has FILE sewed up */
typedef struct hunk HUNK;
typedef struct hunkline HUNKLINE;

struct fil {
  FIL *flink;
  FIL *blink;
  char *name;
  char *escname;
  HUNK *diff_h;
  HUNK *diff_t;
  unsigned int flags;
#define FF_ALLAPPLIED 0x00000001
  unsigned char *contents;
  int contents_len;
  } ;

struct hunkline {
  HUNKLINE *link;
  HUNK *h;
  int l;
  HLT type;
  char *text;
  } ;

struct hunk {
  HUNK *aflink;
  HUNK *ablink;
  HUNK *fflink;
  HUNK *fblink;
  FIL *f;
  unsigned int flags;
#define HF_APPLIED  0x00000001
#define HF_SELECTED 0x00000002
  char *hdrline;
  int fl;
  int fn;
  int tl;
  int tn;
  HUNKLINE *lines;
  } ;

extern char *workdir;
extern FIL *file_h;
extern FIL *file_t;
extern HUNK *hunk_h;
extern HUNK *hunk_t;

#endif