class Test::Unit::AutoRunner

def prepare_name(name)
  case name
  when /\A\/(.*)\/([imx]*)\z/
    pattern = $1
    options_raw = $2
    options = 0
    options |= Regexp::IGNORECASE if options_raw.include?("i")
    options |= Regexp::MULTILINE if options_raw.include?("m")
    options |= Regexp::EXTENDED if options_raw.include?("x")
    Regexp.new(pattern, options)
  else
    name
  end
end