Method getFileSuffixes

src/main/java/gate/DocumentFormat.java:475–489

Given a URL, this method returns all the 'file extensions' for the file part of the URL. For this purposes, a 'file extension' is any sequence of .-separated tokens (such as .gate.xml.gz). The order the extensions are returned in is from the most specific (longest) to the most generic (shortest) one

(URL url)

   * (shortest) one, e.g. [.gate.xml.gz, .xml.gz, .gz]. 
   */
  private static List<String> getFileSuffixes(URL url){
    List<String> res = new LinkedList<String>();
    if (url != null){
      // get the file name from the URL
      String fileName = url.getPath();
      int pos = fileName.lastIndexOf('/');
      if(pos  > 0) fileName = fileName.substring(pos);
      pos = fileName.indexOf('.', 1);
      while(pos > 0 && pos < fileName.length() - 1) {
        res.add(fileName.substring(pos + 1));
        pos = fileName.indexOf('.', pos + 1);
      }
    }
    return res;
  }
  
  
  /**