title: Build char from string
body: <p>I want to allow a user specify a Unicode range via an XML config file. E.g. they could state 0100..017F as the range. For my (Java) app to consume this char range, I need to convert the XML input (String) to type char. Any ideas?#</p>
  
  <p>E.g.</p>
  
  <pre><code>String input = "0100..017F"; // I can change format of input, if enables a solution
  char from = '\u0100';
  char to = '\u017f';
  </code></pre>
  
  <p>Thanks. </p>