code: public final static String getMetaFromFence(final String fenceLine)
      {
          for (int i = 0; i < fenceLine.length(); i++)
          {
              final char c = fenceLine.charAt(i);
              if (!Character.isWhitespace(c) && c != '`' && c != '~')
              {
                  return fenceLine.substring(i).trim();
              }
          }
          return "";
      }
docs: Removes trailing <code>`</code> or <code>~</code> and trims spaces.
  
  @param fenceLine
  Fenced code block starting line
  @return Rest of the line after trimming and backtick or tilde removal
  @since 0.7