static Monitor *dirtomon(int dir);

static void focusmon(const Arg *arg);

static void sendmon(Client *c, Monitor *m);

static void tagmon(const Arg *arg);

}
Monitor *
dirtomon(int dir)
{
	Monitor *m;
	if (dir > 0) {
		if (selmon->link.next == &mons)
			return wl_container_of(mons.next, m, link);
		return wl_container_of(selmon->link.next, m, link);
	} else {
		if (selmon->link.prev == &mons)
			return wl_container_of(mons.prev, m, link);
		return wl_container_of(selmon->link.prev, m, link);
	}

}
void
focusmon(const Arg *arg)
{
	Monitor *m = dirtomon(arg->i);
	if (m == selmon)
		return;
	selmon = m;
	focus(NULL, NULL);

}
void
sendmon(Client *c, Monitor *m)
{
	if (c->mon == m)
		return;
	c->mon = m;
	c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
	if (c == selclient())
		focus(NULL, NULL);

tagmon(const Arg *arg)
{
	Client *sel = selclient();
	if (!sel)
		return;
	sendmon(sel, dirtomon(arg->i));
}
void

	{ MODKEY,                    XKB_KEY_comma,      focusmon,       {.i = -1} },
	{ MODKEY,                    XKB_KEY_period,     focusmon,       {.i = +1} },
	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_less,       tagmon,         {.i = -1} },
	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_greater,    tagmon,         {.i = +1} },