[Haml] [html2haml] Add support for the :css filter as well.

doc-src/HAML_CHANGELOG.md

@@ -55,6 +55,7 @@ including the line number and the offending character.
         Flip #{bang}.
 
 * `<script>` tags are now transformed into `:javascript` filters,
+  and `<style>` tags into `:css` filters.
   and indentation is preserved.
   For example:
 

lib/haml/html.rb

@@ -216,7 +216,11 @@ module Haml
         if name == "script" &&
             (attributes['type'].nil? || attributes['type'] == "text/javascript") &&
             (attributes.keys - ['type']).empty?
-          return script_to_haml(tabs, options)
+          return to_haml_filter(:javascript, tabs, options)
+        elsif name == "style" &&
+            (attributes['type'].nil? || attributes['type'] == "text/css") &&
+            (attributes.keys - ['type']).empty?
+          return to_haml_filter(:css, tabs, options)
         end
 
         output = "#{tabulate(tabs)}"
@@ -272,7 +276,7 @@ module Haml
         end
       end
 
-      def script_to_haml(tabs, options)
+      def to_haml_filter(filter, tabs, options)
         content =
           if children.first.is_a?(::Hpricot::CData)
             children.first.content
@@ -287,7 +291,7 @@ module Haml
           content.gsub!(/^#{original_indent}/, tabulate(tabs + 1))
         end
 
-        "#{tabulate(tabs)}:javascript\n#{content}"
+        "#{tabulate(tabs)}:#{filter}\n#{content}"
       end
 
       def haml_tag_loud(text)

test/haml/html2haml_test.rb

@@ -178,6 +178,21 @@ HAML
 HTML
   end
 
+  def test_erb_in_style
+    assert_equal(<<HAML.rstrip, render_erb(<<HTML))
+:css
+  foo {
+      bar: baz;
+  }
+HAML
+<style type="text/css">
+    foo {
+        bar: baz;
+    }
+</style>
+HTML
+  end
+
   def test_erb_in_line
     assert_equal 'foo bar #{baz}', render_erb('foo bar <%= baz %>')
     assert_equal 'foo bar #{baz}! Bang.', render_erb('foo bar <%= baz %>! Bang.')