title: ANT truncate or regex
body: <p>A novice question:</p>
  
  <p>I have a string (each word separated by a single space):</p>
  
  <p>ABC_01.1_REL_B121001_10_25_2011.2017 ABC_02.1_REL_B121001_10_25_2011.6053 ABC_02.1_REL_B121001_10_25_2011.5643. </p>
  
  <p>I need to select just ABC_01.1_REL_B121001_10_25_2011.2017 using Ant.</p>
  
  <p>The length of AAAA is not fixed but is always separated by a space from the next token. What is the easiest/best way in Ant to do it? Regex, truncate after <em>n</em> characters?</p>