title: UPPERCASE, lowercase, Capitalize an Ant property
body: <p>In Ant, I have a property named '<code>some_property</code>', and let's say its value is "<code>hello</code>".</p>
  
  <p>I'm trying to <strong>replace a place-holder inside a text file</strong> with this property's value ("<strong>hello</strong>") as an <strong>upper-case</strong>.<br>
  So, I have this task:</p>
  
  <pre><code>&lt;replaceregexp match="SOME_PLACE_HOLDER" replace="${some_property}" byline="true"&gt;
  </code></pre>
  
  <p>And I want it to work <em>as if I would have this task</em>:</p>
  
  <pre><code>&lt;replaceregexp match="SOME_PLACE_HOLDER" replace="HELLO" byline="true"&gt;
  </code></pre>
  
  <p><em>I wish to avoid external Ant tasks</em> (such as Ant-Contrib), therefore the <strong><em>solution needs to be a pure regex</em></strong> - it must be possible!</p>
  
  <p>UPPERCASE, lowercase, and Capitalized.</p>
  
  <p>Anyone knows the correct regexes?</p>