class Sass::Tree::Visitors::Convert

def visit_comment(node)
  value = node.value.map do |r|
    next r if r.is_a?(String)
    "\#{#{r.to_sass(@options)}}"
  end.join
  content = if @format == :sass
    content = value.gsub(/\*\/$/, '').rstrip
    if content =~ /\A[ \t]/
      # Re-indent SCSS comments like this:
      #     /* foo
      #   bar
      #       baz */
      content.gsub!(/^/, '   ')
      content.sub!(/\A([ \t]*)\/\*/, '/*\1')
    end
    content =
      unless content.include?("\n")
        content
      else
        content.gsub!(/\n( \*|\/\/)/, "\n  ")
        spaces = content.scan(/\n( *)/).map {|s| s.first.size}.min
        sep = node.type == :silent ? "\n//" : "\n *"
        if spaces >= 2
          content.gsub(/\n  /, sep)
        else
          content.gsub(/\n#{' ' * spaces}/, sep)
        end
      end
    content.gsub!(/\A\/\*/, '//') if node.type == :silent
    content.gsub!(/^/, tab_str)
    content.rstrip + "\n"
  else
    spaces = ('  ' * [@tabs - value[/^ */].size, 0].max)
    content = if node.type == :silent
      value.gsub(/^[\/ ]\*/, '//').gsub(/ *\*\/$/, '')
    else
      value
    end.gsub(/^/, spaces) + "\n"
    content
  end
  content.sub!(%r{^\s*(/\*)}, '/*!') if node.type == :loud
  content
end