--- a/viewer.py	Wed Jul 27 18:05:24 2016 +0800
+++ b/viewer.py	Wed Jul 27 18:39:44 2016 +0800
@@ -21,11 +21,12 @@
 
 class CandolintViewer(Application):
     def __init__(self):
+        project_re = r'/([.a-z0-9_-]+)/([^/]+)/([^/]+)'
         handlers = [
             URLSpec(r'/', IndexHandler),
-            URLSpec(r'/([.a-z0-9_-]+)/([^/]+)/([^/]+)', ProjectHandler),
-            URLSpec(r'/([.a-z0-9_-]+)/([^/]+)/([^/]+)/([\d]+|latest)(?:/(raw))?', CheckHandler),
-            URLSpec(r'/([.a-z0-9_-]+)/([^/]+)/([^/]+)/status\.svg', StatusHandler),
+            URLSpec(project_re, ProjectHandler),
+            URLSpec(project_re + r'/([\d]+|latest)(?:/(raw))?', CheckHandler),
+            URLSpec(project_re + r'/status\.svg', StatusHandler),
             URLSpec(r'.*', ErrorHandler, {'status_code': 404})
         ]
         settings = dict(