M lib/github/markup.rb → lib/github/markup.rb

@@ -1,4 +1,47 @@
+require 'rdiscount'
+require 'redcloth'
+
 module GitHub
   module Markup
+    extend self
+    @@markups = {}
+
+    def markups
+      @@markups
+    end
+
+    def add_markup(regexp, &block)
+      markups[regexp] = block
+    end
+
+    def renderer(filename)
+      @@markups.each do |key, value|
+        if Regexp.compile("#{key}$") =~ filename
+          return value
+        end
+      end
+    end
+
+    def render(filename, content)
+      renderer(filename)[content]
+    end
   end
 end
+
+begin
+  require 'rdiscount'
+  GitHub::Markup.add_markup(/md|mkdn?|markdown/) do |content|
+    Markdown.new(content).to_html
+  end
+rescue LoadError
+  nil
+end
+
+begin
+  require 'redcloth'
+  GitHub::Markup.add_markup(/textile/) do |content|
+    RedCloth.new(content).to_html
+  end
+rescue LoadError
+  nil
+end

M test/markup_test.rb → test/markup_test.rb

@@ -0,0 +1,27 @@
+$LOAD_PATH.unshift File.dirname(__FILE__) + "/../lib"
+
+require 'github/markup'
+require 'test/unit'
+
+class MarkupTest < Test::Unit::TestCase
+  def test_markdown
+    markdown = GitHub::Markup.render('README.markdown', "* One\n* Two")
+    assert_equal <<markdown, markdown
+<ul>
+<li>One</li>
+<li>Two</li>
+</ul>
+
+markdown
+  end
+
+  def test_textile
+    textile = GitHub::Markup.render('README.textile', "* One\n* Two")
+    assert_equal <<textile.strip, textile
+<ul>
+\t<li>One</li>
+\t<li>Two</li>
+</ul>
+textile
+  end
+end