title: clojure 1.8 string replace with a string that has '\\r'
body: <p>I tried this in REPL:</p>
  
  <p><a href="https://i.stack.imgur.com/jAHwC.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jAHwC.png" alt="enter image description here"></a></p>
  
  <p>and when I put these 2 lines in a clj file, <code>\\ruby</code> gives <code>ruby</code>, but <code>\ruby</code> gives a <code>return</code> and <code>uby</code>. </p>
  
  <p>I know <code>\r</code> is special. </p>
  
  <p>How can I get <code>\ruby</code> in a clj file? why in REPL <code>\ruby</code> = <code>\ruby</code>? </p>