WIP

lib/haml/filters.rb

@@ -187,18 +187,6 @@ rescue LoadError; end
 module Haml
   module Filters
 
-    # Filters for other template engines are provided by Tilt.
-    ["Sass", "Scss", "Less", "CoffeeScript", "Maruku"].each do |name|
-      module_eval(<<-END)
-        module #{name}
-          include Base
-          def render(text)
-            Tilt::#{name}Template.new {text}.render
-          end
-        end
-      END
-    end
-
     # Does not parse the filtered text.
     # This is useful for large blocks of text without HTML tags,
     # when you don't want lines starting with `.` or `-`
@@ -256,6 +244,67 @@ END
       end
     end
 
+    module TiltFilter
+      def template_class=(val)
+        @template_class = val
+      end
+
+      def template_class
+        @template_class
+      end
+
+      def self.extended(base)
+        base.instance_eval do
+          def render(text)
+            template_class.new {text}.render
+          end
+        end
+      end
+    end
+
+    module Sass
+      include Base
+      extend Css
+      extend TiltFilter
+
+      def self.render_with_options(text, options)
+        text = template_class.new {text}.render
+        super
+      end
+    end
+
+    module Scss
+      include Base
+      extend Css
+      extend TiltFilter
+
+      def self.render_with_options(text, options)
+        text = template_class.new {text}.render
+        super
+      end
+    end
+
+    module Markdown
+      include Base
+      extend TiltFilter
+    end
+
+    module Coffeescript
+      include Base
+      extend Javascript
+      extend TiltFilter
+
+      def self.render_with_options(text, options)
+        text = template_class.new {text}.render
+        super
+      end
+    end
+
+    Sass.template_class         = Tilt["template.sass"]
+    Scss.template_class         = Tilt["template.scss"]
+    Markdown.template_class     = Tilt["template.markdown"]
+    Coffeescript.template_class = Tilt["template.coffee"]
+
     # Surrounds the filtered text with CDATA tags.
     module Cdata
       include Base

test/filters/coffeescript.haml

@@ -0,0 +1,2 @@
+:coffeescript
+  a = "b"

test/filters/markdown.haml

@@ -0,0 +1,2 @@
+:markdown
+  # foo

test/filters/sass.haml

@@ -0,0 +1,4 @@
+:sass
+  $width: 100 px
+  p
+    width: $width

test/filters/scss.haml

@@ -0,0 +1,5 @@
+:scss
+  $width: 100 px;
+  p {
+    width: $width;
+  }

test/filters_test.rb

@@ -10,8 +10,8 @@ class FiltersTest < MiniTest::Unit::TestCase
   end
 
   TESTS = {
-    :sass         => ["sass", /width: 100;/, ":sass\n  p\n    width: 100"],
-    :scss         => ["sass", /width: 100;/, ":scss\n  $width: 100;\n  p {\n    width: $width;\n  }"],
+    :sass         => ["sass/plugin", /width: 100;/, ":sass\n  p\n    width: 100"],
+    :scss         => ["sass/plugin", /width: 100;/, ":scss\n  $width: 100;\n  p {\n    width: $width;\n  }"],
     :less         => ["less", /width: 100;/, ":less\n  @width: 100;\n  p {\n    width: @width;\n  }"],
     :coffeescript => ["coffee_script", /var foo;/, ":coffeescript\n foo = 'bar'"],
     :maruku       => ["maruku", /h1/, ":maruku\n  # foo"],
@@ -24,8 +24,8 @@ class FiltersTest < MiniTest::Unit::TestCase
       begin
         Haml::Util.silence_warnings do
           require library
-          assert_match(pattern, render(haml))
         end
+        assert_match(pattern, render(haml))
       rescue LoadError
         warn "Could not load #{key} filter's dependencies"
       end