title: Can regular expressions work with different languages?
body: <p>English, of course, is a no-brainer for regex because that's what it was originally developed in/for:</p>
  
  <blockquote>
    <p>Can regular expressions understand this character set?</p>
  </blockquote>
  
  <p>French gets into some accented characters which I'm unsure how to match against - i.e. are è and e both considered word characters by regex?</p>
  
  <blockquote>
    <p>Les expressions régulières peuvent comprendre ce jeu de caractères?</p>
  </blockquote>
  
  <p>Japanese doesn't contain what I know as regex word characters to match against.</p>
  
  <blockquote>
    <p>正規表現は、この文字を理解でき、設定？</p>
  </blockquote>