[XeTeX] [texworks] Overfull boxes return status of 0 in XeTeX

[Philip Taylor]

Zdeněk Wagner wrote:

> Even now it is possible to swich to \scrollmode or \nonstopmode and
> issue \errmsg although no error appeared. As another test I inserted the
> following:
> 
> \setbox254=\hbox to .1pt{A}
> 
> It reports an overfull hbox although the box is never used. Thus if the
> code does not behave in a decent way, it can always be cheated.

Fair points, and worthy of further consideration.
* Phil.