title: Need help getting CLisp to read standard input into a list
body: <p>I'm working on converting some existing Python code to CLisp just as an exercise ...</p>
  
  <p>The program reads a list of numbers and creates mean, min, max and standard deviation from the list. I have the file-based function working:</p>
  
  <pre><code>(defun get-file (filename)
     (with-open-file (stream filename)
       (loop for line = (read-line stream nil)
        while line
        collect (parse-float line))))
  </code></pre>
  
  <p>This works when I call it as</p>
  
  <pre><code>(get-file "/tmp/my.filename")
  </code></pre>
  
  <p>... but I want the program to read standard input and I've tried
  various things with no luck.</p>
  
  <p>Any advice?</p>