private function processSpecialCase($htmlErrorString)
 {
     if (substr_count($htmlErrorString, 'I am unable to validate this document')) {
         $normalForm = 'Unable to interpret %0 as %1 on line %2';
         $normalisedError = new NormalisedError();
         $normalisedError->setNormalForm($normalForm);
         $byteMatches = array();
         preg_match('/".+"/', $htmlErrorString, $byteMatches);
         $normalisedError->addParameter($byteMatches[0]);
         $encodingMatches = array();
         preg_match('/<code>.+<\\/code>/', $htmlErrorString, $encodingMatches);
         $normalisedError->addParameter(str_replace(array('<code>', '</code>'), '', $encodingMatches[0]));
         $lineMatches = array();
         preg_match('/<strong>[0-9]+<\\/strong>/', $htmlErrorString, $lineMatches);
         $normalisedError->addParameter(str_replace(array('<strong>', '</strong>'), '', $lineMatches[0]));
         return $normalisedError;
     }
     return false;
 }
 private function getFromHtml5Pattern($htmlErrorString, $pattern)
 {
     if ($this->matches($htmlErrorString, $pattern)) {
         $matches = $this->preg_match($htmlErrorString, $pattern);
         if ($matches === false) {
             return false;
         }
         $parameters = $this->getParametersFromMatchString($matches[0], $pattern);
         $normalisedError = new NormalisedError();
         $normalisedError->setNormalForm($this->getNormalForm($pattern));
         foreach ($parameters as $parameter) {
             $normalisedError->addParameter($parameter);
         }
         return $normalisedError;
     }
     return false;
 }