code: public final static String process(final File file, final Configuration configuration) throws IOException
      {
          final FileInputStream input = new FileInputStream(file);
          final String ret = process(input, configuration);
          input.close();
          return ret;
      }
docs: Transforms an input file into HTML using the given Configuration.
  
  @param file
  The File to process.
  @param configuration
  the Configuration
  @return The processed String.
  @throws IOException
  if an IO error occurs
  @since 0.7
  @see Configuration