mercurial/bdiff.h

match: implement __repr__() and update users (API)

fsmonitor and debugignore currently access matcher fields that I would
consider implementation details, namely patternspat, includepat, and
excludepat. Let' instead implement __repr__() and have the few users
use that instead.

Marked (API) because the fields can now be None.

#ifndef _HG_BDIFF_H_
#define _HG_BDIFF_H_

struct bdiff_line {
	int hash, n, e;
	ssize_t len;
	const char *l;
};

struct bdiff_hunk;
struct bdiff_hunk {
	int a1, a2, b1, b2;
	struct bdiff_hunk *next;
};

int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr);
int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn,
	struct bdiff_hunk *base);
void bdiff_freehunks(struct bdiff_hunk *l);

#endif