1 files changed, 23 insertions, 0 deletions
diff --git a/dwm.c b/dwm.c
index 4acfec7..56784ff 100644
--- a/dwm.c
+++ b/dwm.c
@@ -235,6 +235,7 @@ static int xerror(Display *dpy, XErrorEvent *ee);
 static int xerrordummy(Display *dpy, XErrorEvent *ee);
 static int xerrorstart(Display *dpy, XErrorEvent *ee);
 static void zoom(const Arg *arg);
+static void swaptags(const Arg *arg);
 
 /* variables */
 static const char broken[] = "broken";
@@ -2153,6 +2154,28 @@ zoom(const Arg *arg)
 	pop(c);
 }
 
+void
+swaptags(const Arg *arg)
+{
+	unsigned int newtag = arg->ui & TAGMASK;
+	unsigned int curtag = selmon->tagset[selmon->seltags];
+
+	if (newtag == curtag || !curtag || (curtag & (curtag-1)))
+		return;
+
+	for (Client *c = selmon->clients; c != NULL; c = c->next) {
+		if((c->tags & newtag) || (c->tags & curtag))
+			c->tags ^= curtag ^ newtag;
+
+		if(!c->tags) c->tags = newtag;
+	}
+
+	selmon->tagset[selmon->seltags] = newtag;
+
+	focus(NULL);
+	arrange(selmon);
+}
+
 int
 main(int argc, char *argv[])
 {