more html5 validation

layouts/article_archive.erb

@@ -1,5 +1,6 @@
 <%= render 'pager', :linkprev => @linkprev, :linknext => @linknext %>
 <div class="row">
+  <section itemscope itemtype="http://schema.org/Blog">
     <% @item[:archiveitems].each do |item| %>
     <div class="span8">
     <%= render 'item_intro', :item => item, :extended => true %>
@@ -8,5 +9,6 @@
      <hr>
     </div>
     <% end %>
+  </section>
 </div>
 <%= render 'pager', :linkprev => @linkprev, :linknext => @linknext %>

layouts/project_body.html

@@ -5,6 +5,7 @@
               <h1><%= item[:title] %></h1>
               <%= yield %>
             </div>
+            <section itemscope itemtype="http://schema.org/Blog">
               <% latest_articles_referred_to(item.identifier,5).each do |item| %>
               <div class="span8">
               <%= render 'item_intro', :item => item, :extended => true %>
@@ -12,6 +13,7 @@
                 <a itemprop="blogPost" href="<%= item.path() %>">Zum Artikel</a>
               </div>
               <% end %>
+            </section>
           </div>
         </div>
         <div class="span4">

lib/twitterhelpers.rb

@@ -21,7 +21,7 @@ def tweet_to_html(tweet)
   end
   result = html_escape(result)
   links.each_with_index do |link,n|
-    result.gsub!("{{{link#{n}}}}", "<a href=\"#{link}\">(Link)</a>")
+    result.gsub!("{{{link#{n}}}}", "<a href=\"#{html_escape(link)}\">(Link)</a>")
   end
   return result
 end