Library-Distribution/ALD-sinatra

!!! XML
%ald:item(xmlns:ald='ald://api/items/describe/schema/2012'){prefix(filter(item, %w[id name version summary rating downloads])), 'ald:type' => item.item_type}
    %ald:description= item.description
    %ald:user{'ald:name' => item.user.name, 'ald:id' => item.user.id}/
    %ald:authors
        - item.authors.each do |author|
            %ald:author{prefix(filter(author, %w[name id user-name homepage email]))}/
    %ald:dependencies
    %ald:requirements
    %ald:ratings
        - item.ratings.each do |rating|
            %ald:rating{:rating => rating.rating}
    %ald:tags
        - item.tags.each do |tag|
            %ald:tag{'ald:name' => tag}/