Update to current type detection - Nuno Gomes points out that European convention is not always to have the € first - you can have it at the end etc. As such, rewrite this plug-in to be a lot more lenient as to how it detects currency. Also use a regex rather than looping over the characters externally, and cope with non-string data.

type-detection/currency.js

@@ -8,27 +8,27 @@
  *  @author <a href="http://sprymedia.co.uk">Allan Jardine</a>, Nuno Gomes
  */
 
-jQuery.fn.dataTableExt.aTypes.unshift(
+(function(){
-   function ( sData )
+
-	{
+// Change this list to the valid characters you want
-		var sValidChars = "0123456789.-,";
+var validChars = "$£€c" + "0123456789" + ".-,'";
-		var sValidSymbols = "$£€";
+
-		var c;
+// Init the regex just once for speed - it is "closure locked"
-		var symbolMatch = false;
+var
+	str = jQuery.fn.dataTableExt.oApi._fnEscapeRegex( validChars ),
+	re = new RegExp('[^'+str+']');
 
-		if ( sValidSymbols.indexOf( sData.charAt(0) ) === -1 ) {
-			return null;
-		}
 
-		for ( i=1 ; i<sData.length ; i++ ) {
+jQuery.fn.dataTableExt.aTypes.unshift(
-			// check for valid chars
+   function ( data )
-			c = sData.charAt(i);
+	{
-			if (sValidChars.indexOf(c) === -1) {
+		if ( typeof data !== 'string' || re.test(data) ) {
 			return null;
 		}
-		}
 
-		// currency detected
 		return 'currency';
 	}
 );
+
+}());
+