module Sterile

q{"He said, 'Away with you, Drake!'"}.smart_format # => “He said, ‘Away with you, Drake!’”

Format text with proper "curly" quotes, m-dashes, copyright, trademark, etc.

def smart_format(string)
  string = string.to_s
  string = string.dup if string.frozen?
  smart_format_rules.each do |rule|
    string.gsub! rule[0], rule[1]
  end
  string
end