class Sass::Engine

def self.parse_interp(text, line, offset, options)
  res = []
  rest = Haml::Shared.handle_interpolation text do |scan|
    escapes = scan[2].size
    res << scan.matched[0...-2 - escapes]
    if escapes % 2 == 1
      res << "\\" * (escapes - 1) << '#{'
    else
      res << "\\" * [0, escapes - 1].max
      res << Script::Parser.new(
        scan, line, offset + scan.pos - scan.matched_size, options).
        parse_interpolated
    end
  end
  res << rest
end