Optimize string interpolation recursively

CHANGELOG.md

@@ -9,6 +9,7 @@ project adheres to [Semantic Versioning](http://semver.org/). This change log is
 ### Added
 
 - Optimize inline script inside a tag
+- Optimize string interpolation recursively
 
 ## [2.1.2](https://github.com/k0kubun/hamlit/compare/v2.1.1...v2.1.2) - 2015-12-16
 

lib/hamlit/string_splitter.rb

@@ -79,7 +79,7 @@ module Hamlit
         when :static
           temple << [:static, content]
         when :dynamic
-          temple << [:dynamic, content]
+          temple << on_dynamic(content)
         end
       end
       temple

test/hamlit/optimization_test.rb

@@ -31,5 +31,10 @@ describe 'optimization' do
       haml = %q|%span= "jruby#{9000}#{dynamic}"|
       assert_equal true, compiled_code(haml).include?(%|<span>jruby9000|)
     end
+
+    it 'detects a static part recursively' do
+      haml = %q|%input{ value: "#{ "hello#{ hello }" }" }|
+      assert_equal true, compiled_code(haml).include?(%|value='hello|)
+    end
   end
 end