[Haml] [html2haml] Handle <div class='foo.bar'> correctly.

doc-src/HAML_CHANGELOG.md

@@ -96,6 +96,9 @@ including the line number and the offending character.
   without spaces within the curly braces
   (e.g. `%p{:foo => "bar"}` as opposed to `%p{ :foo => "bar" }`).
 
+* IDs and classes containing `#` and `.` are now output as string attributes
+  (e.g. `%p{:class => "foo.bar"}`).
+
 * Attributes are now sorted, to maintain a deterministic order.
 
 ## [2.2.7](http://github.com/nex3/haml/commit/2.2.7)

lib/haml/html.rb

@@ -317,7 +317,7 @@ module Haml
       end
 
       def static_attribute?(name, options)
-        attributes[name] and !dynamic_attribute?(name, options)
+        attributes[name] && attributes[name] =~ /^[-:\w]+$/ && !dynamic_attribute?(name, options)
       end
       
       def dynamic_attribute?(name, options)

test/haml/html2haml_test.rb

@@ -27,6 +27,10 @@ class Html2HamlTest < Test::Unit::TestCase
       render('<meta http-equiv="Content-Type" content="text/html" />'))
   end
 
+  def test_class_with_dot
+    assert_equal('%div{:class => "foo.bar"}', render("<div class='foo.bar'></div>"))
+  end
+
   def test_interpolation
     assert_equal('Foo \#{bar} baz', render('Foo #{bar} baz'))
   end