mercurial/bdiff.h

tests: support passing testcase after .t paths that have path separators

This probably could have been implemented by changing the regex above this bit
of code, but I wasn't sure if it would end up handling various OSes correctly,
so I decided to go with this version instead.

Previously:

    $ tests/run-tests.py tests/test-ssh.t -l
    running 2 tests using 2 parallel processes
    ..
    # Ran 2 tests, 0 skipped, 0 failed.

    $ tests/run-tests.py tests/test-ssh.t#sshv1 -l
    running 0 tests using 0 parallel processes

    # Ran 0 tests, 0 skipped, 0 failed.

Now:

    $ tests/run-tests.py tests/test-ssh.t -l
    running 2 tests using 2 parallel processes
    ..
    # Ran 2 tests, 0 skipped, 0 failed.

    $ tests/run-tests.py tests/test-ssh.t#sshv1 -l
    running 1 tests using 1 parallel processes
    .
    # Ran 1 tests, 0 skipped, 0 failed.

Differential Revision: https://phab.mercurial-scm.org/D5535

#ifndef _HG_BDIFF_H_
#define _HG_BDIFF_H_

#include "compat.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