Merge pull request #456 from rwldrn/9318

Improves support for arbitrary numbers in data keys. Fixes #9318

src/core.js

@@ -46,11 +46,11 @@ var jQuery = function( selector, context ) {
 	rmozilla = /(mozilla)(?:.*? rv:([\w.]+))?/,
 
 	// Matches dashed string for camelizing
-	rdashAlpha = /-([a-z])/ig,
+	rdashAlpha = /-([a-z]|[0-9])/ig,
 
 	// Used by jQuery.camelCase as callback to replace()
 	fcamelCase = function( all, letter ) {
-		return letter.toUpperCase();
+		return ( letter + "" ).toUpperCase();
 	},
 
 	// Keep a UserAgent string for use with jQuery.browser

test/unit/data.js

@@ -538,10 +538,13 @@ test("jQuery.data supports interoperable hyphenated/camelCase get/set of propert
 			"an-object": {},
 			"bool-true": true,
 			"bool-false": false,
-			"some-json": '{ "foo": "bar" }'
+			"some-json": '{ "foo": "bar" }',
+			"num-1-middle": true,
+			"num-end-2": true,
+			"2-num-start": true
 		};
 
-	expect( 18 );
+	expect( 24 );
 
 	jQuery.each( datas, function( key, val ) {
 		div.data( key, val );
@@ -578,4 +581,4 @@ test("jQuery.data supports interoperable removal of hyphenated/camelCase propert
 		equal( div.data( key ), undefined, "get: " + key );
 
 	});
-});
+});
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