class Sass::Script::Parser

def min_max_contents(allow_comma: true)
  result = []
  loop do
    if tok = try_tok(:number)
      result << tok.value.to_s
    elsif value = min_max_interpolation
      result << value
    elsif value = min_max_calc
      result << value.value
    elsif value = min_max_function ||
                  min_max_parens ||
                  nested_min_max
      result.concat value
    else
      return
    end
    if try_tok(:rparen)
      result << ")"
      return result
    elsif tok = try_tok(:plus) || try_tok(:minus) || try_tok(:times) || try_tok(:div)
      result << " #{Lexer::OPERATORS_REVERSE[tok.type]} "
    elsif allow_comma && try_tok(:comma)
      result << ", "
    else
      return
    end
  end
end