cleanup

- unify multi-line expression alignment style.
- unify multi-line function call alignment style.
- simplify client moving on monitor count decrease.
- clarify comment for focusin().
- remove old confusing comment about input focus fix in focusmon(). The
  explanation is already in the old commit message, so no need to keep it in the
  code.
- remove old comment describing even older state of the code in focus().
- unify comment style.
- break up some long lines.
- fix some typos and grammar.

LICENSE

@@ -16,7 +16,7 @@ MIT/X Consortium License
 © 2011 Christoph Lohmann <20h@r-36.net>
 © 2015-2016 Quentin Rameau <quinq@fifth.space>
 © 2015-2016 Eric Pruitt <eric.pruitt@gmail.com>
-© 2016 Markus Teich <markus.teich@stusta.mhn.de>
+© 2016-2017 Markus Teich <markus.teich@stusta.mhn.de>
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),

config.def.h

@@ -15,7 +15,7 @@ static const char col_cyan[]        = "#005577";
 static const char *colors[][3]      = {
 	/*               fg         bg         border   */
 	[SchemeNorm] = { col_gray3, col_gray1, col_gray2 },
-	[SchemeSel] =  { col_gray4, col_cyan,  col_cyan  },
+	[SchemeSel]  = { col_gray4, col_cyan,  col_cyan  },
 };
 
 /* tagging */

dwm.c

@@ -3,7 +3,7 @@
  * dynamic window manager is designed like any other X client as well. It is
  * driven through handling X events. In contrast to other X clients, a window
  * manager selects for SubstructureRedirectMask on the root window, to receive
- * events about window (dis-)appearance.  Only one X connection at a time is
+ * events about window (dis-)appearance. Only one X connection at a time is
  * allowed to select for this event mask.
  *
  * The event handlers of dwm are organized in an array which is accessed
@@ -11,7 +11,7 @@
  * in O(1) time.
  *
  * Each child of the root window is called a client, except windows which have
- * set the override_redirect flag.  Clients are organized in a linked client
+ * set the override_redirect flag. Clients are organized in a linked client
  * list on each monitor, the focus history is remembered through a stack list
  * on each monitor. Each client contains a bit array to indicate the tags of a
  * client.
@@ -517,7 +517,8 @@ clientmessage(XEvent *e)
 	if (!c)
 		return;
 	if (cme->message_type == netatom[NetWMState]) {
-		if (cme->data.l[1] == netatom[NetWMFullscreen] || cme->data.l[2] == netatom[NetWMFullscreen])
+		if (cme->data.l[1] == netatom[NetWMFullscreen]
+		|| cme->data.l[2] == netatom[NetWMFullscreen])
 			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
 			              || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
 	} else if (cme->message_type == netatom[NetActiveWindow]) {
@@ -783,7 +784,6 @@ focus(Client *c)
 {
 	if (!c || !ISVISIBLE(c))
 		for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
-	/* was if (selmon->sel) */
 	if (selmon->sel && selmon->sel != c)
 		unfocus(selmon->sel, 0);
 	if (c) {
@@ -804,7 +804,7 @@ focus(Client *c)
 	drawbars();
 }
 
-/* there are some broken focus acquiring clients */
+/* there are some broken focus acquiring clients needing extra handling */
 void
 focusin(XEvent *e)
 {
@@ -823,8 +823,7 @@ focusmon(const Arg *arg)
 		return;
 	if ((m = dirtomon(arg->i)) == selmon)
 		return;
-	unfocus(selmon->sel, 0); /* s/1/0/ fixes input focus issues
+	unfocus(selmon->sel, 0);
-					in gedit and anjuta */
 	selmon = m;
 	focus(NULL);
 }
@@ -961,7 +960,7 @@ grabkeys(void)
 			if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
 				for (j = 0; j < LENGTH(modifiers); j++)
 					XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
-						 True, GrabModeAsync, GrabModeAsync);
+					         True, GrabModeAsync, GrabModeAsync);
 	}
 }
 
@@ -1151,7 +1150,7 @@ movemouse(const Arg *arg)
 	ocx = c->x;
 	ocy = c->y;
 	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
-	None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
+	    None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
 		return;
 	if (!getrootptr(&x, &y))
 		return;
@@ -1434,7 +1433,7 @@ setclientstate(Client *c, long state)
 	long data[] = { state, None };
 
 	XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
-			PropModeReplace, (unsigned char *)data, 2);
+	                PropModeReplace, (unsigned char *)data, 2);
 }
 
 int
@@ -1516,7 +1515,7 @@ setlayout(const Arg *arg)
 		drawbar(selmon);
 }
 
-/* arg > 1.0 will set mfact absolutly */
+/* arg > 1.0 will set mfact absolutely */
 void
 setmfact(const Arg *arg)
 {
@@ -1581,19 +1580,20 @@ setup(void)
 	/* supporting window for NetWMCheck */
 	wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
 	XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
-		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
+	                PropModeReplace, (unsigned char *) &wmcheckwin, 1);
 	XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
-		PropModeReplace, (unsigned char *) "dwm", 4);
+	                PropModeReplace, (unsigned char *) "dwm", 4);
 	XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
-		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
+	                PropModeReplace, (unsigned char *) &wmcheckwin, 1);
 	/* EWMH support per view */
 	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
-			PropModeReplace, (unsigned char *) netatom, NetLast);
+	                PropModeReplace, (unsigned char *) netatom, NetLast);
 	XDeleteProperty(dpy, root, netatom[NetClientList]);
-	/* select for events */
+	/* select events */
 	wa.cursor = cursor[CurNormal]->cursor;
-	wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask|PointerMotionMask
+	wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
-	                |EnterWindowMask|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
+	                |ButtonPressMask|PointerMotionMask|EnterWindowMask
+	                |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
 	XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
 	XSelectInput(dpy, root, wa.event_mask);
 	grabkeys();
@@ -1769,12 +1769,11 @@ unmanage(Client *c, int destroyed)
 	Monitor *m = c->mon;
 	XWindowChanges wc;
 
-	/* The server grab construct avoids race conditions. */
 	detach(c);
 	detachstack(c);
 	if (!destroyed) {
 		wc.border_width = c->oldbw;
-		XGrabServer(dpy);
+		XGrabServer(dpy); /* avoid race conditions */
 		XSetErrorHandler(xerrordummy);
 		XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
 		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
@@ -1871,8 +1870,8 @@ updategeom(void)
 				memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
 		XFree(info);
 		nn = j;
-		if (n <= nn) {
+		if (n <= nn) { /* new monitors available */
-			for (i = 0; i < (nn - n); i++) { /* new monitors available */
+			for (i = 0; i < (nn - n); i++) {
 				for (m = mons; m && m->next; m = m->next);
 				if (m)
 					m->next = createmon();
@@ -1881,8 +1880,8 @@ updategeom(void)
 			}
 			for (i = 0, m = mons; i < nn && m; m = m->next, i++)
 				if (i >= n
-				|| (unique[i].x_org != m->mx || unique[i].y_org != m->my
+				|| unique[i].x_org != m->mx || unique[i].y_org != m->my
-				    || unique[i].width != m->mw || unique[i].height != m->mh))
+				|| unique[i].width != m->mw || unique[i].height != m->mh)
 				{
 					dirty = 1;
 					m->num = i;
@@ -1892,13 +1891,11 @@ updategeom(void)
 					m->mh = m->wh = unique[i].height;
 					updatebarpos(m);
 				}
-		} else {
+		} else { /* less monitors available nn < n */
-			/* less monitors available nn < n */
 			for (i = nn; i < n; i++) {
 				for (m = mons; m && m->next; m = m->next);
-				while (m->clients) {
+				while ((c = m->clients)) {
 					dirty = 1;
-					c = m->clients;
 					m->clients = c->next;
 					detachstack(c);
 					c->mon = mons;
@@ -1913,8 +1910,7 @@ updategeom(void)
 		free(unique);
 	} else
 #endif /* XINERAMA */
-	/* default monitor setup */
+	{ /* default monitor setup */
-	{
 		if (!mons)
 			mons = createmon();
 		if (mons->mw != sw || mons->mh != sh) {
@@ -1988,7 +1984,7 @@ updatesizehints(Client *c)
 	} else
 		c->maxa = c->mina = 0.0;
 	c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
-	             && c->maxw == c->minw && c->maxh == c->minh);
+	              && c->maxw == c->minw && c->maxh == c->minh);
 }
 
 void
@@ -2082,8 +2078,8 @@ wintomon(Window w)
 }
 
 /* There's no way to check accesses to destroyed windows, thus those cases are
- * ignored (especially on UnmapNotify's).  Other types of errors call Xlibs
+ * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
- * default error handler, which may call exit.  */
+ * default error handler, which may call exit. */
 int
 xerror(Display *dpy, XErrorEvent *ee)
 {
@@ -2098,7 +2094,7 @@ xerror(Display *dpy, XErrorEvent *ee)
 	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
 		return 0;
 	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
-			ee->request_code, ee->error_code);
+	        ee->request_code, ee->error_code);
 	return xerrorxlib(dpy, ee); /* may call exit */
 }