title: Using XTemplate::YAMLDocument
body:
  - section: 
      title: YAML
      body:
        - YAML is a serialization format designed for human readability.
          Expansion data of XTemplate is straightforwardly represented
          in YAML format.
        - { raa: {"@name": yaml, ~: YAML4R} }
        - is a Ruby library to parse/load YAML documents.
  - section:
      title: XTemplate::YAMLDocument
      body:
        - XTemplate::YAMLDocument is a wrapper class for YAML document.
        - pre: |
            require 'xtemplate'
            require 'xtemplate/yaml'
            data = XTemplate::YAMLDocument.new(<<EOS)
            members:
              - member:
                  name: name1
                  age: age1
              - member:
                  name: name2
                  age: age2
            EOS
            tpl = XTemplate::XMLTemplate.new(template_text)
            tpl.expand(data)