class DataConverter

# File lib/data-converter.rb, line 13
def initialize(data)
  @data = data
end

# File lib/data-converter.rb, line 17
def self.parse(data)
  constructor = self.new(data)
  constructor.convert
end

# File lib/data-converter.rb, line 22
def convert(data = nil)
  data = @data unless data

  case data
  when Array
    tag(:ul, convert_to_li(data), :escaped => true)
  when Hash
    tag(:dl, convert_to_dl_childs(data), :escaped => true)
  else
    data
  end
end

# File lib/data-converter.rb, line 37
def check_data?(data)
  data.is_a?(Array) or data.is_a?(Hash)
end

# File lib/data-converter.rb, line 51
def convert_to_dl_childs(data)
  childs = []
  data.each_pair do | key, value |
    childs << tag(:dt, key)
    if check_data?(value)
      childs << tag(:dd, convert(value), :escaped => true)
    else
      childs << tag(:dd, value)
    end
  end
  childs.join("\n")
end

# File lib/data-converter.rb, line 41
def convert_to_li(data)
  data.map do |caption|
    if check_data?(caption)
      tag(:li, convert(caption), :escaped => true)
    else
      tag(:li, caption)
    end
  end.join("\n")
end

# File lib/data-converter.rb, line 69
def escape_html(str)
  str.to_s.gsub(ESCAPE_REGEXP) { |char| ESCAPE_VALUES[char] }
end

# File lib/data-converter.rb, line 64
def tag(name, caption, options = {})
  caption = caption.to_s
  "<#{name}>#{options[:escaped] ? caption : escape_html(caption)}</#{name}>"
end