foo http:// http://example http://example. http://.com http://invalid-.com http://-invalid.com http://invalid.com- http://inv-.alid-.com http://inv-.-alid.com file://localhost/path git://example.com/ http://. http://.. http://../ http://? http://?? http://??/ http://# http://## http://##/ http://foo.bar?q=Spaces should be encoded // //a ///a /// http:///a foo.com rdar://1234 h://test http:// shouldfail.com :// should fail http://foo.bar/foo(bar)baz quux http://-error-.invalid/ http://-a.b.co http://a.b-.co http:/ http:// http:// http://1.1.1.1.1 http://123.123.123 http://3628126748 http://123 http://.www.foo.bar/ http://.www.foo.bar./ http://[::1:2::3]:8080/ http://[] http://[]:8080