implemented viewextend and added M-S-C-n shortcuts for extending the current view... updated man page (works great!) nice feature

config.arg.h

@@ -43,6 +43,9 @@ static Key key[] = { \
 	{ MODKEY|ShiftMask,		XK_Return,	spawn, \
 		{ .cmd = "exec urxvt +sb -tr -bg black -fg '#eeeeee' -cr '#eeeeee' +sb " \
 			"-fn '-*-terminus-medium-*-*-*-12-*-*-*-*-*-iso10646-*'" } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_1,		viewextend,	{ .i = 0 } }, \
+	{ MODKEY|ShiftMask,		XK_2,		viewextend,	{ .i = 1 } }, \
+	{ MODKEY|ShiftMask,		XK_3,		viewextend,	{ .i = 2 } }, \
 };
 
 #define RULES \

config.default.h

@@ -44,6 +44,11 @@ static Key key[] = { \
 	{ MODKEY|ShiftMask,		XK_c,		killclient,	{ 0 } }, \
 	{ MODKEY|ShiftMask,		XK_q,		quit,		{ 0 } }, \
 	{ MODKEY|ShiftMask,		XK_Return,	spawn,		{ .cmd = "exec xterm" } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_0,		viewextend,	{ .i = 0 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_1,		viewextend,	{ .i = 1 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_2,		viewextend,	{ .i = 2 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_3,		viewextend,	{ .i = 3 } }, \
+	{ MODKEY|ControlMask|ShiftMask,	XK_4,		viewextend,	{ .i = 4 } }, \
 };
 
 #define RULES \

draw.c

@@ -109,9 +109,9 @@ drawstatus()
 		dc.x += dc.w;
 		dc.w = textw(tags[i]);
 		if(istile)
-			drawtext(tags[i], tsel[i]);
+			drawtext(tags[i], seltag[i]);
 		else
-			drawtext(tags[i], !tsel[i]);
+			drawtext(tags[i], !seltag[i]);
 	}
 	x = dc.x + dc.w;
 	dc.w = textw(stext);

dwm.1

@@ -36,14 +36,21 @@ prints version information to standard output, then exits.
 .B Standard input
 is read and displayed in the status text area.
 .TP
-.B Button[1-3]
-click on a tag label focuses that tag.
+.B Button[1,3]
+click on a tag label focuses that
+.B tag.
+.TP
+.B Button2
+click on a tag label (un)extends the current
+.B tag.
 .TP
 .B Button[1,4]
-click on the bar focuses the previous tag.
+click on the bar focuses the previous
+.B tag.
 .TP
 .B Button[2,5]
-click on the bar focuses the next tag.
+click on the bar focuses the next
+.B tag.
 .SS Keyboard commands
 .TP
 .B Mod1-Return
@@ -108,6 +115,12 @@ Append
 .B nth tag
 to current
 .B window.
+.TP
+.B Mod1-Control-Shift-[0..n]
+(Un)extends
+.B nth tag
+with current
+.B tag.
 .SS Mouse commands
 .TP
 .B Mod1-Button1

dwm.h

@@ -74,7 +74,7 @@ extern unsigned int ntags;
 extern void (*handler[LASTEvent])(XEvent *);
 extern void (*arrange)(Arg *);
 extern Atom wmatom[WMLast], netatom[NetLast];
-extern Bool running, issel, *tsel;
+extern Bool running, issel, *seltag;
 extern Client *clients, *sel;
 extern Cursor cursor[CurLast];
 extern DC dc;
@@ -128,6 +128,7 @@ extern void replacetag(Arg *arg);
 extern void settags(Client *c);
 extern void togglemode(Arg *arg);
 extern void view(Arg *arg);
+extern void viewextend(Arg *arg);
 extern void viewnext(Arg *arg);
 extern void viewprev(Arg *arg);
 

event.c

@@ -108,11 +108,8 @@ buttonpress(XEvent *e)
 			for(a.i = 0; a.i < ntags; a.i++) {
 				x += textw(tags[a.i]);
 				if(ev->x < x) {
-					if(ev->button == Button3) {
-						tsel[a.i] = True;
-						arrange(NULL);
-						drawall();
-					}
+					if(ev->button == Button3)
+						viewextend(&a);
 					else
 						view(&a);
 					return;

main.c

@@ -83,7 +83,7 @@ xerrorstart(Display *dsply, XErrorEvent *ee)
 /* extern */
 
 char stext[1024];
-Bool *tsel;
+Bool *seltag;
 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
 unsigned int ntags;
 Atom wmatom[WMLast], netatom[NetLast];
@@ -213,8 +213,8 @@ main(int argc, char *argv[])
 	initrregs();
 
 	for(ntags = 0; tags[ntags]; ntags++);
-	tsel = emallocz(sizeof(Bool) * ntags);
-	tsel[DEFTAG] = True;
+	seltag = emallocz(sizeof(Bool) * ntags);
+	seltag[DEFTAG] = True;
 
 	/* style */
 	dc.bg = getcolor(BGCOLOR);

tag.c

@@ -181,7 +181,7 @@ isvisible(Client *c)
 	unsigned int i;
 
 	for(i = 0; i < ntags; i++)
-		if(c->tags[i] && tsel[i])
+		if(c->tags[i] && seltag[i])
 			return True;
 	return False;
 }
@@ -229,7 +229,7 @@ settags(Client *c)
 	}
 	if(!matched)
 		for(i = 0; i < ntags; i++)
-			c->tags[i] = tsel[i];
+			c->tags[i] = seltag[i];
 }
 
 void
@@ -245,8 +245,21 @@ view(Arg *arg)
 	unsigned int i;
 
 	for(i = 0; i < ntags; i++)
-		tsel[i] = False;
-	tsel[arg->i] = True;
+		seltag[i] = False;
+	seltag[arg->i] = True;
+	arrange(NULL);
+	drawall();
+}
+
+void
+viewextend(Arg *arg)
+{
+	unsigned int i;
+
+	seltag[arg->i] = !seltag[arg->i];
+	for(i = 0; !seltag[i] && i < ntags; i++);
+	if(i == ntags)
+		seltag[arg->i] = True; /* cannot toggle last view */
 	arrange(NULL);
 	drawall();
 }
@@ -256,7 +269,7 @@ viewnext(Arg *arg)
 {
 	unsigned int i;
 
-	for(i = 0; !tsel[i]; i++);
+	for(i = 0; !seltag[i]; i++);
 	arg->i = (i < ntags-1) ? i+1 : 0;
 	view(arg);
 }
@@ -266,7 +279,7 @@ viewprev(Arg *arg)
 {
 	unsigned int i;
 
-	for(i = 0; !tsel[i]; i++);
+	for(i = 0; !seltag[i]; i++);
 	arg->i = (i > 0) ? i-1 : ntags-1;
 	view(arg);
 }