On 17/09/2008, at 5:48 AM, Frank Mittelbach wrote:
> \if_meaning:NN \l_quark_test_tlp #1 ...
> assuming that #1 has picked up a token which may or may not be a quark
> is that what you are looking for?
Ha, so simple. Thanks.
And if it's *not* a quark, you're still not going to want to expand it