mercurial/bdiff.h

hgweb: perform all parameter lookup via qsparams

I think I managed to update all call sites using wsgirequest.form
to use parsedrequest.qsparams.

Since behavior of qsparams is to retrieve last value, behavior will
change if a parameter was specified multiple times. But I think this
is acceptable.

I'm not a fan of the `req.req.qsparams` pattern. And some of the
modified code could be written better. But I was aiming for a
straight port with this change. Cleanup can come later.

Differential Revision: https://phab.mercurial-scm.org/D2781

#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