Fix exception that causes jekyll to fail when using CRLF (0d0a) linebreaks in YAML front matter.

Signed-off-by: Nick Quaranto <nick@quaran.to>

lib/jekyll/convertible.rb

@@ -18,10 +18,10 @@ module Jekyll
     def read_yaml(base, name)
       self.content = File.read(File.join(base, name))
 
-      if self.content =~ /^(---\s*\n.*?)\n---\s*\n/m
+      if self.content =~ /^(---\s*\n.*?)\r?\n---\s*\n/m
         self.content = self.content[($1.size + 5)..-1]
 
-        self.data = YAML.load($1)
+        self.data = YAML.load($1.dup)
       end
     end
 

test/source/win/_posts/2009-05-24-yaml-linebreak.markdown

@@ -0,0 +1,7 @@
+---
+layout: post
+title: "Test title"
+tag: "Ruby"
+---
+
+This is the content

test/test_post.rb

@@ -68,6 +68,19 @@ class TestPost < Test::Unit::TestCase
         assert_equal "my_category/permalinked-post", @post.url
       end
 
+      context "with CRLF linebreaks" do
+        setup do
+          @real_file = "2009-05-24-yaml-linebreak.markdown"
+          @source = source_dir('win/_posts')
+        end
+        should "read yaml front-matter" do
+          @post.read_yaml(@source, @real_file)
+
+          assert_equal({"title" => "Test title", "layout" => "post", "tag" => "Ruby"}, @post.data)
+          assert_equal "\r\n\r\nThis is the content", @post.content
+        end
+      end
+
       context "with site wide permalink" do
         setup do
           @post.categories = []

test/test_site.rb

@@ -42,7 +42,7 @@ class TestSite < Test::Unit::TestCase
       @site.process
 
       posts = Dir[source_dir("**", "_posts", "*")]
-      categories = %w(bar baz category foo z_category publish_test).sort
+      categories = %w(bar baz category foo z_category publish_test win).sort
 
       assert_equal posts.size - 1, @site.posts.size
       assert_equal categories, @site.categories.keys.sort