Class: WurflDevice::XmlLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/wurfl_device/xml_loader.rb

Class Method Summary collapse

Class Method Details

.load_xml_file(wurfl_file, &blk) ⇒ Object 



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# File 'lib/wurfl_device/xml_loader.rb', line 15

def self.load_xml_file(wurfl_file, &blk)
  begin
    file_contents = File.open(wurfl_file).read.force_encoding('UTF-8')
  rescue => e
    raise XMLFileError, e.message
  end

  # TODO apparently Ox doesn't support UCS/Unicode chars???
  file_contents.gsub!(/\&\#x.+\;/, '')

  # parse xml using Ox
  doc = Ox.parse(file_contents)
  doc.nodes.map do |elem1|
    next unless elem1.value =~ /wurfl/i
    elem1.nodes.map do |elem2|
      # version info
      version_info = Hash.new
      if elem2.value == 'version'
        elem2.nodes.map do |e|
          if e.value == 'ver'
            version_info[:version] = e.nodes[0].to_s
          end
        end
        yield version_info if block_given?
      end

      # devices list
      if elem2.value == 'devices'
        elem2.nodes.map do |device|
          next unless device.value =~ /device/i
          capabilities = Hash.new
          capabilities['id'] = (device.attributes[:id] || '')
          capabilities['user_agent'] = (device.attributes[:user_agent] || '')
          capabilities['fall_back'] = (device.attributes[:fall_back] || '')

          device.nodes.map do |group|
            next unless group.value =~ /group/i
            group.nodes.map do |capability|
              capabilities[group.attributes[:id]] ||= Hash.new
              next unless capability.value =~ /capability/i
              capabilities[group.attributes[:id]][capability.attributes[:name]] = to_actual_value(capability.attributes[:value])
            end
          end
          yield capabilities if block_given?
        end
      end
    end
  end
end

.to_actual_value(value) ⇒ Object 



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# File 'lib/wurfl_device/xml_loader.rb', line 6

def self.to_actual_value(value)
  return value unless value.kind_of?(String)
  return false if value =~ /^false/i
  return true if value =~ /^true/i
  return value.to_i if (value == value.to_i.to_s)
  return value.to_f if (value == value.to_f.to_s)
  value
end