mercurial/bdiff.h

util: better handle '-' in version string (issue5302)

versiontuple() was previously only splitting on '+' and strings
like "3.9-rc" were causing it to misreport the version as
(3, None). By splitting on either '+' or '-' we can handle
our version strings with "-rc" in them.

#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