Hi Ted,
> So either something has changed the numerical encoding of \[ua]
> in groff (but despite searching I have found no clue), or possibly
> the input characters "\[ua]" were mis-interpreted as "\[uA]".
> Could this have something to do with locale?
It doesn't seem to be as simple as them being the same letters with only
case distinguishing.
$ troff -Tps <<<'\fS\[ua]\[uA]\[an]\[AN]\[da]\[dA]' |
> grops |
> grep /Symbol
/F0 10/Symbol SF<ddddbed9afdf>72 12 Q 0 Cg EP
$
Setting LC_ALL=C makes no difference.
Cheers,
Ralph.