improved the embedded bibliographic metadata
This commit is contained in:
Martin Monperrus
+98
-15
@@ -442,9 +442,9 @@ $delegate->beginFile();
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$handle = fopen($bibfilename, "r");
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// if you encounter this errir "Allowed memory size of xxxxx bytes exhausted"
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// if you encounter this error "Allowed memory size of xxxxx bytes exhausted"
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// then decrease the size of the temp buffer below
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$bufsize=min(filesize($bibfilename),BUFFERSIZE);
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$bufsize=BUFFERSIZE;
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while (!feof($handle)) {
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$sread=fread($handle,$bufsize);
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@@ -1184,7 +1184,10 @@ class BibEntry {
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echo bib2html($this);
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$href = 'href="'.BIBTEXBROWSER_URL.'?'.createQueryString(array(Q_KEY => $this->getKey())).'"';
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echo " <a {$href}>[bib]</a>";
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// we add biburl and title to be able to retrieve this important information
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// using Xpath expressions on the XHTML source
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echo " <a class=\"biburl\" title=\"".$this->getKey()."\" {$href}>[bib]</a>";
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// returns an empty string if no url present
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echo $this->getUrlLink();
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@@ -1328,7 +1331,7 @@ return
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),
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// conference papers
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array(
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'query' => array(Q_TYPE=>'inproceedings',Q_EXCLUDE=>'workshop'),
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'query' => array(Q_TYPE=>'inproceedings|conference',Q_EXCLUDE=>'workshop'),
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'title' => 'Refereed Conference Papers'
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),
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// workshop papers
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@@ -2006,7 +2009,8 @@ class BibEntryDisplay extends BibtexBrowserDisplay {
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/** Creates metadata for Google Scholar
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* + a description
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* See http://www.monperrus.net/martin/accurate+bibliographic+metadata+and+google+scholar
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* @see http://scholar.google.com/intl/en/scholar/inclusion.html
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* @see http://www.monperrus.net/martin/accurate+bibliographic+metadata+and+google+scholar
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* */
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function metadata() {
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$result=array();
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@@ -2022,18 +2026,26 @@ class BibEntryDisplay extends BibtexBrowserDisplay {
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}
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$result[] = array('citation_date',$this->bib->getYear());
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// citation_publisher
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$result[] = array('citation_publisher',$this->bib->getPublisher());
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// this page
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$result[] = array('citation_abstract_html_url','http://'.$_SERVER['HTTP_HOST'].($_SERVER['SERVER_PORT']=='80'?'':$_SERVER['SERVER_PORT']).$_SERVER['REQUEST_URI']);
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if ($this->bib->hasField("publisher")) {
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$result[] = array('citation_publisher',$this->bib->getPublisher());
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}
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// BOOKTITLE: JOURNAL NAME OR PROCEEDINGS
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if ($this->bib->getType()=="article") { // journal article
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$result[] = array('citation_journal_title',$this->bib->getField("journal"));
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$result[] = array('citation_volume',$this->bib->getField("volume"));
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if ($this->bib->hasField("issue")) {
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$result[] = array('citation_issue',$this->bib->getField("issue"));}
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$result[] = array('citation_issue',$this->bib->getField("issue"));
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}
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if ($this->bib->hasField("issn")) {
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$result[] = array('citation_issue',$this->bib->getField("issn"));
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}
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}
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if ($this->bib->getType()=="inproceedings") {
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if ($this->bib->getType()=="inproceedings" || $this->bib->getType()=="conference") {
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$result[] = array('citation_conference_title',$this->bib->getField(BOOKTITLE));
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$result[] = array('citation_conference',$this->bib->getField(BOOKTITLE));
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}
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@@ -2069,14 +2081,22 @@ class BibEntryDisplay extends BibtexBrowserDisplay {
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$result[] = array('citation_pdf_url',$this->bib->getField("url"));
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}
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// we don't introduce yet another kind of bibliographic metadata
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// the core bibtex metadata will simply be available as json
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// now adding the pure bibtex with no translation
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foreach ($this->bib->getFields() as $k => $v) {
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if (!preg_match("/^_/",$k)) {
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$result[] = array("bibtex:".$k,$v);
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}
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}
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//foreach ($this->bib->getFields() as $k => $v) {
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// if (!preg_match("/^_/",$k)) {
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// $result[] = array("bibtex:".$k,$v);
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// }
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//}
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// and a fallback to essential dublin core
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// a fallback to essential dublin core
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// Dublin Core should not be used for bibliographic metadata
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// according to several sources
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// * Google Scholar: "Use Dublin Core tags (e.g., DC.title) as a last resort - they work poorly for journal papers"
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// * http://reprog.wordpress.com/2010/09/03/bibliographic-data-part-2-dublin-cores-dirty-little-secret/
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// however it seems that Google Scholar needs at least DC.Title to trigger referencing
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// reference documentation: http://dublincore.org/documents/dc-citation-guidelines/
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$result[] = array('DC.Title',$this->bib->getTitle());
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foreach($this->bib->getArrayOfCommaSeparatedAuthors() as $author) {
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$result[] = array('DC.Creator',$author);
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@@ -2084,6 +2104,69 @@ class BibEntryDisplay extends BibtexBrowserDisplay {
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$result[] = array('DC.Date',$this->bib->getYear());
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// --------------------------------- BEGIN METADATA EPRINTS
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// and now adding eprints metadata
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// why adding eprints metadata?
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// because eprints is a well known bibliographic software and several crawlers/desktop software
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// use their metadata
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// unfortunately, the metadata is even less documented than Google Scholar citation_
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// reference documentation: the eprints source code (./perl_lib/EPrints/Plugin/Export/Simple.pm)
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// examples: conference paper: http://tubiblio.ulb.tu-darmstadt.de/44344/
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// journal paper: http://tubiblio.ulb.tu-darmstadt.de/44344/
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$result[] = array('eprints.title',$this->bib->getTitle());
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$authors = $this->bib->getArrayOfCommaSeparatedAuthors();
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foreach($authors as $author) {
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$result[] = array('eprints.creators_name',$author);
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}
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$result[] = array('eprints.date',$this->bib->getYear());
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if ($this->bib->hasField("publisher")) {
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$result[] = array('eprints.publisher',$this->bib->getPublisher());
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}
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if ($this->bib->getType()=="article") { // journal article
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$result[] = array('eprints.type','article');
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$result[] = array('eprints.publication',$this->bib->getField("journal"));
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$result[] = array('eprints.volume',$this->bib->getField("volume"));
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if ($this->bib->hasField("issue")) {
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$result[] = array('eprints.number',$this->bib->getField("issue"));}
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}
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if ($this->bib->getType()=="inproceedings" || $this->bib->getType()=="conference") {
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$result[] = array('eprints.type','proceeding');
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$result[] = array('eprints.book_title',$this->bib->getField(BOOKTITLE));
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}
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if ($this->bib->getType()=="phdthesis"
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|| $this->bib->getType()=="mastersthesis"
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|| $this->bib->getType()=="bachelorsthesis"
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)
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{
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$result[] = array('eprints.type','thesis');
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$result[] = array('eprints.institution',$this->bib->getField('school'));
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}
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if ($this->bib->getType()=="techreport")
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{
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$result[] = array('eprints.type','monograph');
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if ($this->bib->hasField("number")) {
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$result[] = array('eprints.number',$this->bib->getField('number'));
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}
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if ($this->bib->hasField("institution")) {
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$result[] = array('eprints.institution',$this->bib->getField('institution'));
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}
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}
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// generic
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if ($this->bib->hasField("doi")) {
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$result[] = array('eprints.id_number',$this->bib->getField("doi"));
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}
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if ($this->bib->hasField("url")) {
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$result[] = array('eprints.official_url',$this->bib->getField("url"));
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}
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// --------------------------------- END METADATA EPRINTS
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return $result;
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}
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