module RuboCop::Cop::StringLiteralsHelp

def autocorrect(node)
  return if node.dstr_type?
  lambda do |corrector|
    str = node.str_content
    if style == :single_quotes
      corrector.replace(node.source_range, to_string_literal(str))
    else
      corrector.replace(node.source_range, str.inspect)
    end
  end
end

def wrong_quotes?(node)
  src = node.source
  return false if src.start_with?('%', '?')
  if style == :single_quotes
    !double_quotes_required?(src)
  else
    src !~ /" | \\ | \#(@|\{)/x
  end
end