usar commonmarker closes #34

Gemfile

@@ -30,6 +30,7 @@ gem 'jbuilder', '~> 2.5'
 # Use Capistrano for deployment
 # gem 'capistrano-rails', group: :development
 
+gem 'commonmarker'
 gem 'email_address'
 gem 'rails_warden'
 gem 'haml-rails'

Gemfile.lock

@@ -80,6 +80,8 @@ GEM
     chronic (0.10.2)
     coderay (1.1.2)
     colorator (1.1.0)
+    commonmarker (0.17.8)
+      ruby-enum (~> 0.5)
     concurrent-ruby (1.0.5)
     crass (1.0.3)
     dotenv (2.2.1)
@@ -213,6 +215,8 @@ GEM
     rbnacl (4.0.2)
       ffi
     rouge (3.1.0)
+    ruby-enum (0.7.2)
+      i18n
     ruby_dep (1.5.0)
     ruby_parser (3.10.1)
       sexp_processor (~> 4.9)
@@ -288,6 +292,7 @@ DEPENDENCIES
   capistrano-rails
   capistrano-rbenv
   capybara (~> 2.13)
+  commonmarker
   dotenv-rails
   email_address
   exception_notification

config/initializers/commonmarker.rb

@@ -0,0 +1,18 @@
+require 'commonmarker'
+
+module Haml::Filters
+
+  remove_filter("Markdown") #remove the existing Markdown filter
+
+  module Markdown
+
+    include Haml::Filters::Base
+
+    def render(text)
+      CommonMarker.render_html(text,
+        [:TABLE_PREFER_STYLE_ATTRIBUTES],
+        [:table,:strikethrough,:autolink,:tagfilter])
+    end
+
+  end
+end