title: split using boost::is_any_of confuses over delimeter ",," and ","
body: <p>I currently have a string that has the following structure</p>
  
  <pre><code>xxx,xxx,xxxxxxx,,xxxxxx,xxxx
  </code></pre>
  
  <p>Now I am using the following code</p>
  
  <pre><code> std::vector&lt; std::string &gt; vct;
   boost::split( vct, str, boost::is_any_of(",,") );
  </code></pre>
  
  <p>Now the boost splits up the string once it finds "," and not ",," which I dont want. Is there any way that I could explicitly specify that it should split only if it finds ",," and not ","</p>