+void
+restack()
+{
+ static unsigned int nwins = 0;
+ static Window *wins = NULL;
+ unsigned int f, fi, m, mi, n;
+ Client *c;
+ XEvent ev;
+
+ for(f = 0, m = 0, c = clients; c; c = c->next)
+ if(isvisible(c)) {
+ if(c->isfloat || arrange == dofloat)
+ f++;
+ else
+ m++;
+ }
+ if(!(n = 2 * (f + m))) {
+ drawstatus();
+ return;
+ }
+ if(nwins < n) {
+ nwins = n;
+ wins = erealloc(wins, nwins * sizeof(Window));
+ }
+
+ fi = 0;
+ mi = 2 * f;
+ if(sel->isfloat || arrange == dofloat) {
+ wins[fi++] = sel->title;
+ wins[fi++] = sel->win;
+ }
+ else {
+ wins[mi++] = sel->title;
+ wins[mi++] = sel->win;
+ }
+ for(c = clients; c; c = c->next)
+ if(isvisible(c) && c != sel) {
+ if(c->isfloat || arrange == dofloat) {
+ wins[fi++] = c->title;
+ wins[fi++] = c->win;
+ }
+ else {
+ wins[mi++] = c->title;
+ wins[mi++] = c->win;
+ }
+ }
+ XRestackWindows(dpy, wins, n);
+ drawall();
+ XSync(dpy, False);
+ while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+void
+settags(Client *c)
+{
+ char classinst[256];
+ unsigned int i, j;
+ regmatch_t tmp;
+ Bool matched = False;
+ XClassHint ch;
+
+ if(XGetClassHint(dpy, c->win, &ch)) {
+ snprintf(classinst, sizeof(classinst), "%s:%s",
+ ch.res_class ? ch.res_class : "",
+ ch.res_name ? ch.res_name : "");
+ for(i = 0; !matched && i < len; i++)
+ if(rreg[i].clregex && !regexec(rreg[i].clregex, classinst, 1, &tmp, 0)) {
+ c->isfloat = rule[i].isfloat;
+ for(j = 0; rreg[i].tregex && j < ntags; j++) {
+ if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
+ matched = True;
+ c->tags[j] = True;
+ }
+ }
+ }
+ if(ch.res_class)
+ XFree(ch.res_class);
+ if(ch.res_name)
+ XFree(ch.res_name);
+ }
+ if(!matched)
+ for(i = 0; i < ntags; i++)
+ c->tags[i] = seltag[i];
+}
+
+void
+togglemode(Arg *arg)
+{
+ arrange = arrange == dofloat ? dotile : dofloat;
+ arrange(NULL);
+}
+
+void
+view(Arg *arg)
+{
+ unsigned int i;
+
+ for(i = 0; i < ntags; i++)
+ seltag[i] = False;
+ seltag[arg->i] = True;
+ arrange(NULL);
+}
+
+void
+toggleview(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);
+}