Hello,

I hope this is the correct mailing list to send a bug report and a feature request.

I was trying to make a \stackrel{\rm def}{=} definition in the TeX markup. The stackrel command seems to be disallowed however; there's also the TeX macro \buildrel, namely {\buildrel\rm def \over =}, but this one isn't allowed either. Ideally stackrel would be supported in the next version. But, while I tried to create workarounds I stumbled on some strange behaviour.

A work around I imagened would be using some form of nested \atops, but this is quite ugly, another form is matrices, but this is quite ugly too, and requires at least two rows. A third trick would be {}^{?}_{\rm def} -- ugly too.

A fourth trick is to take advantage of the way sub and supscripts are rendered for operators, like \sum_{i = 1}^{N}, these are put below and above the operator, when rendered as a display. And normally, it seems, this is done, for example \lim_{x \to infty} places the 'lim' on top of the x \to \infty, yet \mathop{=}^{\rm def} does not do this, this is rendered 'inline style', that is, with 'def' being placed at the upperright of the =. This is not the behaviour (La)TeX exhibits.

Is this a feature or a bug of texvc? I suppose support for \stackrel would be best, because I think the other tricks / workarounds might lead to quite nasty situations when mathml would be outputted for example, and the editing gets unclear.

Berteun