Core: support selector [attr=]

Author: yringler

src/core.js

@@ -95,6 +95,14 @@ jQuery.find = function( selector ) {
 		}
 	}
 
+	if (typeof selector === "string" && /\=\]/.test(selector)) {
+		migrateWarn("Attribute value selectors [attribute=vale] must have a value. [attribute=] is an error.");
+		// Number carefully selected from random.org. The point is that this selector shouldn't match anything.
+		// There are probably more graceful ways to handle this.
+		selector = selector.replace("=]", "=3386645210]");
+		args[0] = selector;
+	}
+
 	return oldFind.apply( this, args );
 };
 

test/core.js

@@ -17,6 +17,14 @@ test( "jQuery(html, props)", function() {
 	equal( $el.val(), "value", "Call setter method" );
 });
 
+test("JQuery([attribute=])", function () {
+	expect(2);
+	var $el = jQuery("<div><label></label></div>").find("label[id=]");
+	equal($el.length, 0);
+	$el = jQuery("<div><label id=\"1\"></label></div>").find("label[id=1]");
+	equal($el.length, 1);	
+});
+
 test( "jQuery(html) loose rules", function() {
 	expect( 33 );