public function RISEncoder::decode in Bibliography & Citation 8

Same name and namespace in other branches

1. 2.0.x modules/bibcite_ris/src/Encoder/RISEncoder.php \Drupal\bibcite_ris\Encoder\RISEncoder::decode()

File

modules/bibcite_ris/src/Encoder/RISEncoder.php, line 32

Class

RISEncoder

RIS format encoder.

Namespace

Drupal\bibcite_ris\Encoder

Code

public function decode($data, $format, array $context = []) {

  /*
   * Workaround for weird behavior of "LibRIS" library.
   *
   * Replace LF line ends by CRLF.
   */
  $data = str_replace("\n", "\r\n", $data);
  $config = \Drupal::config('bibcite_entity.mapping.' . $format);
  $fields = $config
    ->get('fields');
  $ris = new RISReader();
  $ris
    ->parseString($data);
  $records = $ris
    ->getRecords();

  // Workaround for weird behavior of "LibRIS" library.
  foreach ($records as &$record) {
    foreach ($record as $key => $value) {
      if (is_array($value) && count($value) == 1) {
        $record[$key] = reset($value);
      }
    }

    // Additional pages parsing.
    $pages_string = '';
    if (array_key_exists('SP', $record) || array_key_exists('EP', $record)) {
      if (array_key_exists('SP', $record)) {
        $record['SP'] = (array) $record['SP'];
      }
      if (array_key_exists('EP', $record)) {
        $record['EP'] = (array) $record['EP'];
      }
      $max_sp = array_key_exists('SP', $record) ? max($record['SP']) : NULL;
      $max_ep = array_key_exists('EP', $record) ? max($record['EP']) : 0;
      if ($max_sp && $max_sp > $max_ep) {
        $pages_string .= $max_sp . '+';
        array_splice($record['SP'], array_search($max_sp, $record['SP']), 1);
      }
      while ($max_ep) {
        $pages_string = $max_ep . ', ' . $pages_string;
        array_splice($record['EP'], array_search($max_ep, $record['EP']), 1);
        $max_ep = count($record['EP']) > 0 ? max($record['EP']) : NULL;
        $max_sp = array_key_exists('SP', $record) ? max($record['SP']) : NULL;
        if ($max_sp && (!$max_ep || $max_sp > $max_ep)) {
          $pages_string = $max_sp . '-' . $pages_string;
          array_splice($record['SP'], array_search($max_sp, $record['SP']), 1);
        }
      }
      $record['SP'] = $pages_string;
      $record['EP'] = $pages_string;
    }

    // From old format import fix.
    // User fields to custom.
    if (isset($record['U1']) && !isset($fields['U1']) && !isset($records['C1'])) {
      $record['C1'] = $record['U1'];
      unset($record['U1']);
    }
    if (isset($record['U2']) && !isset($fields['U2']) && !isset($records['C2'])) {
      $record['C2'] = $record['U2'];
      unset($record['U2']);
    }
    if (isset($record['U3']) && !isset($fields['U3']) && !isset($records['C3'])) {
      $record['C3'] = $record['U3'];
      unset($record['U3']);
    }
    if (isset($record['U4']) && !isset($fields['U4']) && !isset($records['C4'])) {
      $record['C4'] = $record['U4'];
      unset($record['U4']);
    }
    if (isset($record['U5']) && !isset($fields['U5']) && !isset($records['C5'])) {
      $record['C5'] = $record['U5'];
      unset($record['U5']);
    }

    // Year of publication.
    if (isset($record['Y1']) && !isset($fields['Y1']) && !isset($records['PY'])) {
      $record['PY'] = $record['Y1'];
      unset($record['Y1']);
    }

    // Titles.
    if ($this
      ->checkKeys([
      'TI',
      'T1',
      'ST',
      'CT',
      'BT',
    ], $record)) {
      $title = $record['TI'];
      if ($title === $record['T1'] && $title === $record['ST'] && $title === $record['CT'] && $title === $record['BT']) {
        unset($record['T1']);
        unset($record['ST']);
        unset($record['CT']);
        unset($record['BT']);
      }
    }

    // Issue.
    if ($this
      ->checkKeys([
      'CP',
      'IS',
    ], $record) && $record['CP'] === $record['IS']) {
      unset($record['CP']);
    }

    // Short title.
    if ($this
      ->checkKeys([
      'J1',
      'J2',
      'JO',
    ], $record) && $record['J1'] === $record['J2'] && $record['J1'] === $record['JO']) {
      $record['ST'] = $record['J1'];
      unset($record['J1']);
      unset($record['J2']);
      unset($record['JO']);
    }

    // Secondary title.
    if ($this
      ->checkKeys([
      'JA',
      'JF',
      'T2',
    ], $record) && $record['JA'] === $record['JF'] && $record['JA'] === $record['T2']) {
      unset($record['JA']);
      unset($record['JF']);
    }

    // Abstract.
    if ($this
      ->checkKeys([
      'AB',
      'N2',
    ], $record) && $record['AB'] && $record['AB'] === $record['N2']) {
      unset($record['N2']);
    }
  }
  if (count($records) === 0) {
    $format_definition = \Drupal::service('plugin.manager.bibcite_format')
      ->getDefinition($format);
    $format_label = $format_definition['label'];
    throw new UnexpectedValueException("Incorrect '{$format_label}' format or empty set.");
  }
  return $records;
}