Parses the section from the XML returned from PubMed that contains information regarding to dates

Parameters

$xml: The XML to parse

$pub: The publication object to which additional details will be added

Related topics

File

tripal_pub/includes/importers/tripal_pub.PMID.inc, line 859

This file provides support for importing and parsing of results from the NCBI PubMed database. The functions here are used by both the publication importer setup form and the publication importer.

Code

function tripal_pub_PMID_parse_date($xml, $element_name) {
  $date = array();

  while ($xml->read()) {
    $element = $xml->name;

    if ($xml->nodeType == XMLReader::END_ELEMENT and $element == $element_name) {
      // if we're at the </$element_name> then we're done
      return $date;
    }
    if ($xml->nodeType == XMLReader::ELEMENT) {
      switch ($element) {
        case 'Year':
          $xml->read();
          $date['year'] = $xml->value;
          break;
        case 'Month':
          $xml->read();
          $month =
            $date['month'] = $xml->value;
          break;
        case 'Day':
          $xml->read();
          $date['day'] = $xml->value;
          break;
        case 'MedlineDate':
          // the medline date is when the date cannot be broken into distinct month day year.
          $xml->read();
          $date['year'] = preg_replace('/^(\d{4}).*$/', '\1', $xml->value);
          $date['medline'] = $xml->value;
          break;
        default:
          break;
      }
    }
  }
}