view mercurial/bdiff.h @ 30899:a8786013f056

import: mention "stdin" (abbreviated) and add example

I actually didn't even think it was possible because I searched the
help text for "stdin", and didn't even think of searching for
"standard input". Let's mention the abbreviated form too to help
others like me. (When importing from stdin, we actually print a
message saying "applying patch from stdin".)

This patch also adds an example showing how to import from stdin.

#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