anchor.diff:  - data.posts = data.posts || [{ tags: ["tag1", "tag2"] }];
   - data.page = data.page || {};
   
  -- type = "page";
  -
   doctype html
   html(lang="en")
     include head.jade
  
positive.code:     - } else if (type === "blog") {
        include blog.jade
      - // Other pages
      - } else {
        include page.jade
      - }
  
  
negative.code: - config.options = config.options || {};
  - config.options.customJS = config.customJS || [];
  - config.options.customCSS = config.customCSS || [];
  - config.analytics = config.analytics || {};
  
  - config.blog = config.blog || {};
  - config.site = config.site || {};
  - config.user = config.user || {};
  