class Sass::Engine

def parse_comment(line)
  if line[1] == CSS_COMMENT_CHAR || line[1] == SASS_COMMENT_CHAR
    silent = line[1] == SASS_COMMENT_CHAR
    Tree::CommentNode.new(
      format_comment_text(line[2..-1], silent),
      silent)
  else
    Tree::RuleNode.new(parse_interp(line))
  end
end