allow an autogroup value of 0 to mean no group. This means you can set

automatically "sticky" (in the traditional sense of the word) windows in
autogroup mode.

Based on an initial diff from Andrew Fresh, thanks!

ok okan@.

calmwm.h

@@ -159,7 +159,7 @@ struct client_ctx {
 TAILQ_HEAD(client_ctx_q, client_ctx);
 
 static char *shortcut_to_name[] = {
-	"XXX", "one", "two", "three",
+	"nogroup", "one", "two", "three",
 	"four", "five", "six", "seven",
 	"eight", "nine"
 };

cwmrc.5

@@ -33,7 +33,11 @@ The following options are accepted in the configuration file:
 Control automatic window grouping, based on the class and/or name
 properties, where
 .Ar group
-is a number between 1 and 9.
+is a number between 0 and 9.
+If the group number is 0, then the window will not be grouped; this to
+allow for 
+.Dq sticky
+windows in sticky group mode.
 .Pp
 The class and name of a window may be obtained using
 .Xr xprop 1 .

group.c

@@ -328,6 +328,9 @@ group_autogroup(struct client_ctx *cc)
 		}
 	}
 
+	if (strncmp("nogroup", group, 7) == 0)
+		return;
+
 	TAILQ_FOREACH(gc, &Groupq, entry) {
 		if (strcmp(shortcut_to_name[gc->shortcut], group) == 0) {
 			_group_add(gc, cc);

parse.y

@@ -125,7 +125,7 @@ main		: FONTNAME STRING		{
 			struct autogroupwin *aw;
 			char *p;
 
-			if ($2 < 1 || $2 > 9) {
+			if ($2 < 0 || $2 > 9) {
 				free($3);
 				yyerror("autogroup number out of range: %d", $2);
 				YYERROR;