class Dependabot::Uv::FileUpdater::CompileFileUpdater

def hash_separator(requirement_string)
  hash_regex = RequirementParser::HASH
  return unless requirement_string.match?(hash_regex)
  current_separator =
    requirement_string
    .match(/#{hash_regex}((?<separator>\s*\\?\s*?)#{hash_regex})*/)
    .named_captures.fetch("separator")
  default_separator =
    requirement_string
    .match(RequirementParser::HASH)
    .pre_match.match(/(?<separator>\s*\\?\s*?)\z/)
    .named_captures.fetch("separator")
  current_separator || default_separator
end