# File lib/jekyll/site.rb, line 266 def post_attr_hash(post_attr) # Build a hash map based on the specified post attribute ( post attr => # array of posts ) then sort each array in reverse order. hash = Hash.new { |hsh, key| hsh[key] = Array.new } self.posts.each { |p| p.send(post_attr.to_sym).each { |t| hash[t] << p } } hash.values.map { |sortme| sortme.sort! { |a, b| b <=> a } } hash end