function find_article_from_page($values, &$item)
{
global $debug;
$found = false;
// Is it in our cache?
$tmp_item = new stdClass();
$tmp_item->issn = $values['issn'];
$tmp_item->volume = $values['volume'];
$tmp_item->pages = $values['pages'];
$cache_id = find_in_cache_from_page($tmp_item);
if ($cache_id != 0) {
$item = retrieve_from_db($cache_id);
$found = true;
} else {
// Off to the Cloud...
// For now limit ourselves to CrossRef
$year = '';
if (array_key_exists('date', $values)) {
$year = $values['date'];
}
if (in_crossref($values['issn'], $year, $values['volume'])) {
//echo 'Should be in CrossRef';
$max_tries = 50;
$doi = '';
$page = $values['pages'];
$upper_bound = $page;
// save the original starting page
$count = 0;
while (!$found && $count < $max_tries && $page >= 0) {
if ($debug) {
echo $count, '.';
}
$doi = search_for_doi($values['issn'], $values['volume'], $page, $values['genre'], $item);
if ($doi == '') {
// Decrease page
$page--;
// We might now be in the range of a previously found range
$tmp_item->issn = $values['issn'];
$tmp_item->volume = $values['volume'];
$tmp_item->pages = $page;
$cache_id = find_in_cache_from_page($tmp_item);
if ($cache_id != 0) {
$item = retrieve_from_db($cache_id);
$found = true;
// Update upper bound
update_page_upperbound($cache_id, $upper_bound);
}
} else {
$found = true;
$cache_id = find_in_cache($item);
if ($cache_id == 0) {
$cache_id = store_in_cache($item);
}
// Update upper bound
update_page_upperbound($cache_id, $upper_bound);
//echo 'got it!';
}
$count++;
}
}
// OK, try JSTOR (gulp)
if (!$found) {
if ($debug) {
echo '<p>Trying JSTOR ' . $values['issn'] . '</p>';
if (in_jstor($values['issn'], $values['date'])) {
echo "in JSTOR\n";
}
}
if (enough_for_jstor_lookup($values) && in_jstor($values['issn'], $values['date'])) {
$max_tries = 20;
$page = $values['pages'];
$upper_bound = $page;
// save the original starting page
$temp_values = $values;
$count = 0;
while (!$found && $count < $max_tries && $page >= 0) {
if ($debug) {
echo $count, '.';
}
$temp_values['spage'] = $page;
$sici = sici_from_meta($temp_values);
if ($debug) {
print_r($temp_values);
echo urlencode($sici);
}
$found = jstor_metadata($sici, $item);
if (!$found) {
// Decrease page
$page--;
$temp_values['spage'] = $page;
// We might now be in the range of a previously found range
$tmp_item->issn = $values['issn'];
$tmp_item->volume = $values['volume'];
$tmp_item->pages = $page;
$cache_id = find_in_cache_from_page($tmp_item);
if ($cache_id != 0) {
$item = retrieve_from_db($cache_id);
$found = true;
// Update upper bound
update_page_upperbound($cache_id, $upper_bound);
}
} else {
$cache_id = find_in_cache($item);
if ($cache_id == 0) {
$cache_id = store_in_cache($item);
}
// Update upper bound
update_page_upperbound($cache_id, $upper_bound);
//echo 'got it!';
}
$count++;
}
} else {
if ($debug) {
echo '<p>Not enough for JSTOR lookup, or out of range ' . $values['issn'] . ' ' . $values['date'] . '</p>';
}
}
}
}
return $found;
}
/**
* @brief Import bibliograpohic data from a RIS file
*
*/
function import_ris($ris)
{
global $debug;
$rows = split("\n", $ris);
if ($debug) {
echo '<pre style="text-align: left;border: 1px solid #c7cfd5;background: #f1f5f9;padding:15px;">';
print_r($rows);
echo "</pre>";
}
$state = 1;
$genre = '';
foreach ($rows as $r) {
$parts = split(" - ", $r);
$key = '';
if (isset($parts[1])) {
$key = $parts[0];
$value = trim($parts[1]);
// clean up any leading and trailing spaces
}
if (isset($key) && $key == 'TY') {
$state = 1;
$obj = new stdClass();
$obj->authors = array();
if ('JOUR' == $value) {
$genre = 'article';
}
}
if (isset($key) && $key == 'ER') {
$state = 0;
if ($debug) {
echo 'Line: ' . __LINE__ . "\n";
echo "\n=== Import this object ==\n";
}
// ISSN lookup
if (!isset($obj->issn) && 'article' == $genre) {
$issn = issn_from_journal_title($obj->title);
if ('' != $issn) {
$obj->issn = $issn;
}
}
// to do: we might want to do a DOI lookup here to get more GUIDs...
if (!isset($obj->doi)) {
if (in_crossref($obj->issn, $obj->year, $obj->volume)) {
$item = new stdclass();
$doi = search_for_doi($obj->issn, $obj->volume, $obj->spage, 'article', $item);
if ($doi != '') {
$obj->doi = $doi;
// Fix missing metadata
if (!isset($obj->epage) && isset($item->epage)) {
$obj->epage = $item->epage;
}
}
}
}
// http://en.wikipedia.org/wiki/Chinese_name
// For some journals (e.g., Chinese) we need to reverse the name parts returned
// by parse_name
//echo "boo1 |" . $obj->issn . "|\n";
switch ($obj->issn) {
case '0529-1526':
// Acta Phytotaxonomica Sinica
for ($i = 0; $i < count($obj->authors); $i++) {
$tmp = $obj->authors[$i]->forename;
$obj->authors[$i]->forename = $obj->authors[$i]->lastname;
$obj->authors[$i]->lastname = $tmp;
}
break;
default:
break;
}
// Cleaning...
if ($debug) {
echo '<pre style="text-align: left;border: 1px solid #c7cfd5;background: #f1f5f9;padding:15px;">';
print_r($obj);
echo "</pre>";
}
// Store reference here...
if (find_in_cache($obj) == 0) {
if (isset($obj->issn)) {
if ($obj->issn != '') {
store_in_cache($obj);
}
}
/* for Pac Sci
if (isset($obj->volume))
{
if ($obj->volume != '')
{
store_in_cache($obj);
}
}
*/
}
}
if ($state == 1) {
if (isset($value)) {
process_ris_key($key, $value, $obj);
}
}
}
}