On 29/01/2012, at 11:52 PM, Joseph Wright wrote: > On 29/01/2012 12:56, Will Robertson wrote: >> Consider: >> >> \csname\ifnum 3 > 2 foo\fi\endcsname >> >> This (probably obviously to all of you) complains with the standard "Missing \endcsname inserted." presumably because there's an unexpandable implicit \relax inserted somewhere in there. > > No, it works fine :-) I assume you were thinking of something else. Ergh. It appears I was being a bit scattered :( I'm not even sure at this point how I reach that conclusion. Sorry for the noise! -- Will