some cleanup handling for index based mon search

diff --git a/dwm.c b/dwm.c
index 5934a6c..04fcc90 100644 (file)
--- a/dwm.c
+++ b/dwm.c
@@ -177,6 +177,7 @@ static void focusstack(const Arg *arg);
 static Client *getclient(Window w);
 static unsigned long getcolor(const char *colstr);
 static Monitor *getmon(Window w);
+static Monitor *getmonn(unsigned int n);
 static Monitor *getmonxy(int x, int y);
 static Bool getrootpointer(int *x, int *y);
 static long getstate(Window w);
@@ -800,18 +801,13 @@ focusin(XEvent *e) { /* there are some broken focus acquiring clients */
 #ifdef XINERAMA
 void
 focusmon(const Arg *arg) {
-       unsigned int i;
-       Monitor *m; 
-
-       for(i = 0, m = mons; m; m = m->next, i++)
-               if(i == arg->ui) {
-                       if(m == selmon)
-                               return;
-                       unfocus(selmon->sel);
-                       selmon = m;
-                       focus(NULL);
-                       break;
-               }
+       Monitor *m;
+
+       if(!(m = getmonn(arg->ui)) || m == selmon)
+               return;
+       unfocus(selmon->sel);
+       selmon = m;
+       focus(NULL);
 }
 #endif /* XINERAMA */
 
@@ -879,6 +875,15 @@ getmon(Window w) {
        return NULL;
 }
 
+Monitor *
+getmonn(unsigned int n) {
+       unsigned int i;
+       Monitor *m;
+
+       for(m = mons, i = 0; m && i != n; m = m->next, i++);
+       return m;
+}
+
 Monitor *
 getmonxy(int x, int y) {
        Monitor *m;
@@ -1542,17 +1547,11 @@ tag(const Arg *arg) {
 #ifdef XINERAMA
 void
 tagmon(const Arg *arg) {
-       unsigned int i;
-       Client *c;
        Monitor *m;
 
-       if(!(c = selmon->sel))
+       if(!selmon->sel || !(m = getmonn(arg->ui)))
                return;
-       for(i = 0, m = mons; m; m = m->next, i++)
-               if(i == arg->ui) {
-                       sendmon(c, m);
-                       break;
-               }
+       sendmon(selmon->sel, m);
 }
 #endif /* XINERAMA */