improved position of some common functions

global-context.go

@@ -128,6 +128,14 @@ func CtrlIsEnabled(ctx ExprContext, name string) (status bool) {
 	return
 }
 
+func getControlString(name string) (s string, exists bool) {
+	var v any
+	if v, exists = globalCtx.GetVar(name); exists {
+		s, exists = v.(string)
+	}
+	return
+}
+
 func init() {
 	globalCtx = NewSimpleStore()
 	initDefaultVars(globalCtx)