public function mark_automatically($student_answer, &$log)
{
$this->msg->set_root('/auto-marking');
$log = array();
if (!$this->auto_marking_method) {
throw new Exception($this->msg->_('cannot-mark-type-none'));
}
if (!is_array($student_answer) || count($student_answer) != $this->n_answers) {
throw new Exception($this->msg->_('invalid-format'));
}
$log[] = ['ft-running', []];
$correct = 0;
for ($i = 0; $i < $this->n_answers; $i++) {
$log[] = ['ft-nth-field', [$i + 1]];
$raw_answer = $student_answer[$i];
$clean_answer = Util::remove_useless_whitespaces($raw_answer);
$log[] = ['ft-pattern', [html($this->raw_answers[$i])]];
$log[] = ['ft-given-answer', [html($raw_answer)]];
$log[] = ['ft-given-answer-clean', [html($clean_answer)]];
if (preg_match($this->answers[$i], $raw_answer) || preg_match($this->answers[$i], $clean_answer)) {
$log[] = ['ft-result-correct', []];
$correct++;
} else {
$log[] = ['ft-result-incorrect', []];
}
}
if ($this->auto_marking_method == 'binary') {
$mark = (int) ($correct == $this->n_answers);
$log[] = ['mark', array('mark' => $mark)];
} else {
$mark = (double) $correct / $this->n_answers;
$log[] = ['mark-with-fraction', array('numerator' => $correct, 'denominator' => $this->n_answers, 'mark' => $mark)];
}
return $mark;
}
public function mark_automatically($student_answer, &$log)
{
$this->msg->set_root('/auto-marking');
$log = array();
if (!$this->auto_marking_method) {
throw new Exception($this->msg->_('cannot-mark-type-none'));
}
if (!is_string($student_answer)) {
throw new Exception($this->msg->_('invalid-format'));
}
$clean_answer = Util::remove_useless_whitespaces($student_answer);
$log[] = ['sa-running', []];
$log[] = ['sa-pattern', [html($this->raw_answer)]];
$log[] = ['sa-given-answer', [html($student_answer)]];
$log[] = ['sa-given-answer-clean', [html($clean_answer)]];
if (preg_match($this->answer, $student_answer) || preg_match($this->answer, $clean_answer)) {
$log[] = ['sa-result-correct', []];
$mark = 1;
} else {
$log[] = ['sa-result-incorrect', []];
$mark = 0;
}
$log[] = ['mark', array('mark' => $mark)];
return $mark;
}
