title: How to choose between whitespace pattern?
body: <p>In the <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/util/regex/Pattern.html" rel="nofollow">Oracle Pattern documentation</a> there is the description of three different pattern for matching whitespace :</p>
  
  <ol>
  <li>\s</li>
  <li>\p{Space}</li>
  <li>\p{javaWhitespace}</li>
  </ol>
  
  <p>I'm wondering what are the specificity of each and how to know how to choose the right one.
  I've just noticed that <code>\p{javaWhitespace}</code> include more space type.</p>