#ifndef _DATASTRUCT_H_d3b055bd_
#define _DATASTRUCT_H_d3b055bd_

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 {
  char *name;
  HUNK *diffs;
  } ;

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

struct hunk {
  FIL *f;
  int fl;
  int fn;
  int tl;
  int tn;
  HUNKLINE *lines;
  } ;

#endif