From 3f9e9d0cf4d1fb1953a85df1f1fcebe8b91b16f1 Mon Sep 17 00:00:00 2001
From: Dan Stillman <dstillman@zotero.org>
Date: Wed, 27 May 2009 08:07:16 +0000
Subject: [PATCH] Look for explicit Dublin Core prefix, in the unlikely event
 that any pages don't use "DC."

---
 translators/Embedded RDF.js | 45 +++++++++++++++++++++++++++++--------
 1 file changed, 36 insertions(+), 9 deletions(-)

diff --git a/translators/Embedded RDF.js b/translators/Embedded RDF.js
index d11f9c585..a7dd993bc 100644
--- a/translators/Embedded RDF.js	
+++ b/translators/Embedded RDF.js	
@@ -8,15 +8,42 @@
 	"maxVersion":"",
 	"priority":400,
 	"inRepository":true,
-	"lastUpdated":"2009-05-27 05:25:00"
+	"lastUpdated":"2009-05-27 08:06:05"
+}
+
+var _prefix;
+var _dc = "http://purl.org/dc/elements/1.1/";
+
+function getDCPrefix(doc) {
+	if(_prefix) {
+		return _prefix;
+	}
+	
+	var links = doc.getElementsByTagName("link");
+	for(var i=0; i<links.length; i++) {
+		if(links[i].getAttribute("href") == _dc) {
+			var rel = links[i].getAttribute("rel");
+			var matches = rel.match(/^schema\.([a-zA-Z]+)/);
+			if(matches) {
+				_prefix = matches[1].toLowerCase() + ".";
+			}
+			break;
+		}
+	}
+	if(!_prefix) {
+		_prefix = "dc.";
+	}
+	return _prefix;
 }
 
 function detectWeb(doc, url) {
+	var prefix = getDCPrefix(doc);
+	
 	if (url.indexOf("reprint") != -1) return false;
 	var metaTags = doc.getElementsByTagName("meta");
 	for(var i=0; i<metaTags.length; i++) {
 		var tag = metaTags[i].getAttribute("name");
-		if(tag && tag.substr(0, 3).toLowerCase() == "dc.") {
+		if(tag && tag.substr(0, 3).toLowerCase() == prefix) {
 			return "webpage";
 		}
 	}
@@ -25,8 +52,8 @@ function detectWeb(doc, url) {
 }
 
 function doWeb(doc, url) {
-	var dc = "http://purl.org/dc/elements/1.1/";
-
+	var prefix = getDCPrefix(doc);
+	
 	// load RDF translator, so that we don't need to replicate import code
 	var translator = Zotero.loadTranslator("import");
 	translator.setTranslator("5e3ad958-ac79-463d-812b-a86a9235c28f");
@@ -46,20 +73,20 @@ function doWeb(doc, url) {
 	for(var i=0; i<metaTags.length; i++) {
 		var tag = metaTags[i].getAttribute("name");
 		var value = metaTags[i].getAttribute("content");
-		if(tag && value && tag.substr(0, 3).toLowerCase() == "dc.") {
+		if(tag && value && tag.substr(0, 3).toLowerCase() == prefix) {
 			if(tag == "dc.title") {
 				foundTitle = true;
 			}
-			rdf.Zotero.RDF.addStatement(url, dc + tag.substr(3).toLowerCase(), value, true);
+			rdf.Zotero.RDF.addStatement(url, _dc + tag.substr(3).toLowerCase(), value, true);
 		} else if(tag && value && (tag == "author" || tag == "author-personal")) {
-			rdf.Zotero.RDF.addStatement(url, dc + "creator", value, true);
+			rdf.Zotero.RDF.addStatement(url, _dc + "creator", value, true);
 		} else if(tag && value && tag == "author-corporate") {
-			rdf.Zotero.RDF.addStatement(url, dc + "creator", value, true);
+			rdf.Zotero.RDF.addStatement(url, _dc + "creator", value, true);
 		}
 	}
 	
 	if (!foundTitle) {
-		rdf.Zotero.RDF.addStatement(url, dc + "title", doc.title, true);
+		rdf.Zotero.RDF.addStatement(url, _dc + "title", doc.title, true);
 	}
 	rdf.defaultUnknownType = "webpage";
 	rdf.doImport();