Merge pull request #171 from aurimasv/cleanDOI

Fix cleanDOI
2012-09-23 08:40:36 -07:00 · 2012-09-23 08:40:36 -07:00 · 0c2b8e6016
commit 0c2b8e6016
parent cff1bac7b9 c5061de782
1 changed files with 3 additions and 2 deletions
--- a/chrome/content/zotero/xpcom/utilities.js
+++ b/chrome/content/zotero/xpcom/utilities.js
@ -261,8 +261,9 @@ Zotero.Utilities = {
 		if(typeof(x) != "string") {
 			throw "cleanDOI: argument must be a string";
 		}
-		
-		return x.match(/10\.[0-9]{4,}\/[^\s]*[^\s\.,]/)[0];
+
+		var doi = x.match(/10\.[0-9]{4,}\/[^\s]*[^\s\.,]/);
+		return doi ? doi[0] : null;
 	},

 	/**