Allow html compiler to be switched

lib/hamlit/engine.rb

@@ -18,6 +18,7 @@ module Hamlit
       generator:  Temple::Generators::ArrayBuffer,
       format:     :html,
       attr_quote: "'",
+      ugly:       false,
     )
 
     use MultilinePreprocessor
@@ -31,17 +32,28 @@ module Hamlit
     use ScriptCompiler
     use TextCompiler
     use DynamicFormatter
-    use HTML
+    use :Html, -> { create(html_compiler) }
     filter :Escapable
     filter :ControlFlow
     filter :MultiFlattener
     filter :StaticMerger
+    use :Generator, -> { create(options[:generator]) }
 
-    use :Generator do
+    private
+
+    def create(klass)
       valid_options = options.to_hash.select do |key, value|
-        options[:generator].options.valid_key?(key)
+        klass.options.valid_key?(key)
+      end
+      klass.new(valid_options)
+    end
+
+    def html_compiler
+      if options[:ugly]
+        Temple::HTML::Fast
+      else
+        Html
       end
-      options[:generator].new(valid_options)
     end
   end
 end

lib/hamlit/html.rb

@@ -1,7 +1,7 @@
 require 'temple/html/fast'
 
 module Hamlit
-  class HTML < Temple::HTML::Fast
+  class Html < Temple::HTML::Fast
     define_options :format
 
     def initialize(opts = {})
@@ -10,7 +10,7 @@ module Hamlit
 
     private
 
-    # Temple's warning is noisy.
+    # Temple's warning is noisy in haml-spec.
     def rewrite_format(options)
       options = options.dup
       options[:format] = normalize_format(options[:format]) if options[:format]
@@ -18,8 +18,6 @@ module Hamlit
     end
 
     def normalize_format(format)
-      return :html unless format
-
       case format
       when :html4, :html5
         :html

spec/hamlit/engine_spec.rb

@@ -4,7 +4,11 @@ describe Hamlit::Engine do
 
     let(:buffer)  { '_a' }
     let(:options) do
-      { buffer: buffer, generator: Temple::Generators::ArrayBuffer }
+      {
+        buffer:    buffer,
+        generator: Temple::Generators::ArrayBuffer,
+        ugly:      true,
+      }
     end
 
     it 'accepts generator valid options' do

spec/spec_helper.rb

@@ -2,11 +2,16 @@ require 'hamlit'
 require 'unindent'
 
 module HamlitSpecHelper
+  DEFAULT_OPTIONS = {
+    ugly: true,
+  }.freeze
+
   def parse_string(str)
     Hamlit::Parser.new.call(str)
   end
 
   def render_string(str, options = {})
+    options = DEFAULT_OPTIONS.merge(options)
     eval Hamlit::Engine.new(options).call(str)
   end