[texhax] On putting \unvbox inside an \hbox

[Doug McKenna]

Michael Barr wrote -

>This URL ought to be part of every texhax issue, since it expresses this 
>sort of problem so well.  Why do you want to put \unvbox inside an \hbox? 
>After all, the following works perfectly well:

The real problem, IMNSHO, is that, even though logically truthful, the 
TeX error message for the illegal box nesting was misleading and pretty 
much useless in understanding the problem in the first place, as I 
discovered after executing the original example to see what would happen.


Doug McKenna