/**
* Extracting the data of one entry
*
* @access private
* @param string $entry The entry
* @return array The representation of the entry or false if there is a problem
*/
function _postProcessing(&$ret)
{
// First post processing: Process accents, transform bibtex types
foreach ($ret as $key => &$value) {
switch ($key) {
case "bibtex":
case "cite":
break;
case "entrytype":
if ($value == "conference") {
$value = "inproceedings";
}
break;
default:
PaperciteBibTexEntries::process_accents($value);
}
}
// Remove braces and handles capitalization
foreach (array("title", "booktitle", "journal") as $f) {
if (in_array($f, array_keys($ret))) {
$ret[$f] = $this->formatTitle($ret[$f]);
}
}
// Handling pages
if (in_array('pages', array_keys($ret))) {
$matches = array();
if (preg_match("/^\\s*(\\d+)(?:\\s*--?\\s*(\\d+))?\\s*\$/", $ret['pages'], $matches)) {
$ret['pages'] = new PaperciteBibtexPages($matches[1], sizeof($matches) > 2 ? $matches[2] : "");
}
}
//Handling the authors
if (in_array('author', array_keys($ret))) {
$ret['author'] = PaperciteBibTexEntries::_extractAuthors($ret['author']);
}
//Handling the editors
if (in_array('editor', array_keys($ret))) {
$ret['editor'] = PaperciteBibTexEntries::_extractAuthors($ret['editor']);
}
}
/**
* Get the bibtex data from an URI
*/
function getData($biburis, $options)
{
global $wpdb, $papercite_table_name, $papercite_table_name_url;
$timeout = $options["timeout"];
$processtitles = $options["process_titles"];
$sslverify = $options["ssl_check"];
// Loop over the different given URIs
$bibFile = false;
$array = explode(",", $biburis);
$result = array();
foreach ($array as $biburi) {
// (1) Get the context
$data = FALSE;
$stringedFile = false;
$custom_prefix = "custom://";
// Handles custom:// by adding the post number
if (papercite::startsWith($biburi, $custom_prefix)) {
$stringedFile = true;
$key = substr($biburi, strlen($custom_prefix));
$biburi = "post://" . get_the_ID() . "/" . $key;
$data = get_post_custom_values("papercite_{$key}");
if ($data) {
$data = $data[0];
}
}
if (!Papercite::array_get($this->cache, $biburi, false)) {
if ($stringedFile) {
// do nothing
} else {
if (preg_match('#^(ftp|http)s?://#', $biburi) == 1) {
$bibFile = $this->getCached($biburi, $timeout, $sslverify);
} else {
$biburi = preg_replace("#\\.bib\$#", "", $biburi);
$bibFile = $this->getDataFile("{$biburi}", "bib", "bib", "application/x-bibtex", $options);
}
}
if ($data === FALSE && !($bibFile && file_exists($bibFile[0]))) {
continue;
}
// Customize URIs depending on parsing options
$biburi .= $processtitles ? "#pt=1" : "#pt=0";
// (2) Parse the BibTeX
if ($data || file_exists($bibFile[0])) {
if (!$data) {
$fileTS = filemtime($bibFile[0]);
// Check if we don't have the data in cache
if ($this->useDb()) {
$oldurlid = -1;
// We use entrytype as a timestamp
$row = $wpdb->get_row($wpdb->prepare("SELECT urlid, ts FROM {$papercite_table_name_url} WHERE url=%s", $biburi));
if ($row) {
$oldurlid = $row->urlid;
if ($row->ts >= $fileTS) {
$result[$biburi] = $this->cache[$biburi] = array("__DB__", $row->urlid);
continue;
}
}
}
$data = file_get_contents($bibFile[0]);
}
if (!empty($data)) {
switch ($this->options["bibtex_parser"]) {
case "pear":
// Pear parser
$this->_parser = new PaperciteStructures_BibTex(array('removeCurlyBraces' => true, 'extractAuthors' => true, 'processTitles' => $processtitles));
$this->_parser->loadString($data);
$stat = $this->_parser->parse();
if (!$stat) {
return $this->cache[$biburi] = false;
}
$this->cache[$biburi] =& $this->_parser->data;
break;
default:
// OSBiB parser
$parser = new PaperciteBibTexEntries();
$parser->processTitles($processtitles);
if (!$parser->parse($data)) {
$this->cache[$biburi] = false;
continue;
} else {
$this->cache[$biburi] =& $parser->data;
}
break;
}
// Save to DB
if (!$stringedFile && $this->useDb()) {
// First delete everything
if ($oldurlid >= 0) {
$wpdb->query($wpdb->prepare("DELETE FROM {$papercite_table_name} WHERE urlid=%d", $oldurlid));
if ($code === FALSE) {
break;
}
} else {
$code = $wpdb->query($wpdb->prepare("INSERT INTO {$papercite_table_name_url}(url, ts) VALUES (%s, 0)", $biburi));
if ($code === FALSE) {
break;
}
$oldurlid = $wpdb->insert_id;
}
$code = true;
foreach ($this->cache[$biburi] as &$value) {
$year = is_numeric($value["year"]) ? intval($value["year"]) : -1;
$statement = $wpdb->prepare("REPLACE {$papercite_table_name}(urlid, bibtexid, entrytype, year, data) VALUES (%s,%s,%s,%s,%s)", $oldurlid, $value["cite"], $value["entrytype"], $year, maybe_serialize($value));
$code = $wpdb->query($statement);
if ($code === FALSE) {
break;
}
}
if ($code !== FALSE) {
$statement = $wpdb->prepare("REPLACE INTO {$papercite_table_name_url}(url, urlid, ts) VALUES(%s,%s,%s)", $biburi, $oldurlid, $fileTS);
$code = $wpdb->query($statement);
}
}
}
}
}
// end bibtex processing (not in cache)
// Add to the list
if (Papercite::array_get($this->cache, $biburi, false)) {
$result[$biburi] = $this->cache[$biburi];
}
}
// end loop over URIs
return $result;
}
