title: Regexp for robots.txt
body: <p>I am trying to set up my robots.txt, but I am not sure about the regexps.</p>
  
  <p>I've got four different pages all available in three different languages. Instead of listing each page times 3, I figured I could use a regexp.</p>
  
  <p><strong>nav.aspx</strong>
  <br><strong>page.aspx/changelang</strong> (might have a query string attached such as "?toLang=fr".)
  <br ><strong>mypage.aspx?id</strong> and <br> <strong>login.aspx/logoff</strong> (=12346?... etc - different each time)</p>
  
  <p>! All four in 3 different languages, e.g:</p>
  
  <p><strong>www.example.com/es/nav.aspx<br >
  www.example.com/it/nav.aspx<br >
  www.example.com/fr/nav.aspx</strong></p>
  
  <p>Now, my question is: Is the following regexp correct?</p>
  
  <pre><code>User-Agent: *
  Disallow: /*nav\.aspx$
  Disallow: /*page.aspx/changelang
  Disallow: /*mypage\.aspx?id
  Disallow: /*login\.aspx\/logoff
  </code></pre>
  
  <p>Thanks</p>