module RuboCop::Cop::RegexpMetacharacter

def literal_at_end_with_dollar?(regex_str)
  # is this regexp 'literal' in the sense of only matching literal
  # chars, rather than using metachars like . and * and so on?
  # also, is it anchored at the end of the string?
  /\A(?:#{Util::LITERAL_REGEX})+\$\z/o.match?(regex_str)
end