title: awk split() function uses regular expression or exact string constant?
body: <p>If we have <code>ip=192.168.0.1</code> and we call <code>split(ip, myArray, ".")</code>, myArray will contains "192" at position 1, "168" at position 2, "0" at position 3 and "1" at position 4.</p>
  
  <p>My question is that why does awk not interpreted the "." as the "any character" regular expression? </p>
  
  <p>What would I need to do if I want to make awk interpreted the "." as the "any character" regular expression for matching? </p>
  
  <p>Will this behaviour be consistent across all awk implementations?</p>