From 33ad7817a4f970dbfa47a1bf6daa7b4ebe044dc7 Mon Sep 17 00:00:00 2001
From: Jessica McKellar <jesstess@humbughq.com>
Date: Tue, 2 Oct 2012 12:46:04 -0400
Subject: [PATCH] Require that the first character of a class be a number or
 letter.

(imported from commit a4d1c23f784107198045aee7cec1f53ab5114762)
---
 zephyr/views.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/zephyr/views.py b/zephyr/views.py
index dcaba01753..278c75a920 100644
--- a/zephyr/views.py
+++ b/zephyr/views.py
@@ -405,7 +405,8 @@ def json_remove_subscription(request):
     return json_success({"data": sub_name})
 
 def valid_class_name(name):
-    return re.match('^[a-z A-Z0-9_-]+$', name)
+    # Classes must start with a letter or number.
+    return re.match('^[a-zA-Z0-9][a-z A-Z0-9_-]*$', name)
 
 @login_required
 @require_post