Changed prompt management

examples/simple.php

@@ -28,11 +28,14 @@ class MyShell extends Shell
             echo "world\n\rthis\n\ris\n\ra\ntest\n\r";
         });
         $this->addCommand(new MyCommand());
+        $this->updatePrompt();
     }
-
-    protected function getPrompt()
+    
+    protected function updatePrompt()
     {
-        return "test[{$this->seq}]: ";
+        $this->setPrompt("test[{$this->seq}]: ");
+        $fg = ($this->seq % 7) + 1;
+        $this->setPromptStyle("3{$fg}");
     }
 
     protected function onUpdate()
@@ -43,13 +46,12 @@ class MyShell extends Shell
             $lt = $t + 5;
             echo date("Y-m-d h:i:s")."\n";
         }
-        $fg = ($this->seq % 7) + 1;
-        $this->setPromptStyle("3{$fg}");
     }
     
     protected function onCommand($buffer)
     {
         $this->seq++;
+        $this->updatePrompt();
         parent::onCommand($buffer);
     }