lemonade compatibility specs and functions

lib/compass/sass_extensions/functions/sprites.rb

@@ -3,9 +3,8 @@ require 'chunky_png'
 module Compass::SassExtensions::Functions::Sprites
   SASS_NULL = Sass::Script::Number::new(0)
   
-  def sprite_image(uri)
+  def generate_sprite_image(uri)
-    uri = uri.value
+    path, name = Compass::Sprites.path_and_name(uri.value)
-    path, name = Compass::Sprites.path_and_name(uri)
     last_spacing = 0
     width = 0
     height = 0
@@ -48,12 +47,23 @@ module Compass::SassExtensions::Functions::Sprites
     end
     output_png.save File.join(File.join(Compass.configuration.images_path, "#{path}.png"))
     
+    sprite_url(uri)
+  end
+  
+  def sprite_image(uri, x_shift = SASS_NULL, y_shift = SASS_NULL)
+    url = sprite_url(uri)
+    position = sprite_position(uri, x_shift, y_shift)
+    Sass::Script::String.new("#{url} #{position}")
+  end
+    
+  def sprite_url(uri)
+    path, name = Compass::Sprites.path_and_name(uri.value)
     image_url(Sass::Script::String.new("#{path}.png"))
   end
 
-  def sprite_position(file, x_shift = SASS_NULL, y_shift = SASS_NULL)
+  def sprite_position(uri, x_shift = SASS_NULL, y_shift = SASS_NULL)
-    name = File.dirname(file.value)
+    name = File.dirname(uri.value)
-    image_name = File.basename(file.value, '.png')
+    image_name = File.basename(uri.value, '.png')
     image = Compass::Sprites.sprites(name).detect{ |image| image[:name] == image_name }
     if x_shift.unit_str == "%"
       x = x_shift.to_s

lib/compass/sprites.rb

@@ -8,7 +8,7 @@ module Compass
       end
       
       def path_and_name(uri)
-        if uri =~ %r{((.+/)?(.+))/(\*)\.png}
+        if uri =~ %r{((.+/)?(.+))/(.+?)\.png}
           [$1, $3, $4]
         end
       end
@@ -53,7 +53,7 @@ module Compass
           end.join}
         
           \#{$#{name}-sprite-base-class} {
-            background: sprite-image("#{uri}") no-repeat;
+            background: generate-sprite-image("#{uri}") no-repeat;
           }
         
           @mixin #{name}-sprite-dimensions($sprite) {

spec/sprites_spec.rb

@@ -345,4 +345,55 @@ describe Compass::Sprites do
     image_md5('squares.png').should == '0187306f3858136feee87d3017e7f307'
   end
   
+  it "should use the sprite-image and sprite-url function as in lemonade" do
+    css = render <<-SCSS
+      @import "squares/*.png";
+      
+      .squares-1 {
+        background: sprite-image("squares/20x20.png") no-repeat;
+      }
+      
+      .squares-2 {
+        background: sprite-image("squares/20x20.png", 100%) no-repeat;
+      }
+      
+      .squares-3 {
+        background: sprite-image("squares/20x20.png", -4px, 3px) no-repeat;
+      }
+      
+      .squares-4 {
+        background-image: sprite-url("squares/20x20.png");
+      }
+      
+      .squares-5 {
+        background-image: sprite-url("squares/*.png");
+      }
+    SCSS
+    css.should == <<-CSS
+      .squares-sprite {
+        background: url('/squares.png') no-repeat;
+      }
+      
+      .squares-1 {
+        background: url('/squares.png') 0 -10px no-repeat;
+      }
+      
+      .squares-2 {
+        background: url('/squares.png') 100% -10px no-repeat;
+      }
+      
+      .squares-3 {
+        background: url('/squares.png') -4px -7px no-repeat;
+      }
+      
+      .squares-4 {
+        background-image: url('/squares.png');
+      }
+      
+      .squares-5 {
+        background-image: url('/squares.png');
+      }
+    CSS
+  end
+  
 end