[TUHS] Spell - was tmac: Move macro diagnostics away from `quotes'

[Lyndon Nerenberg]

> On Nov 22, 2017, at 5:05 PM, Doug McIlroy <doug at cs.dartmouth.edu> wrote:
> 
> The first one was a fantastic tour de force by Bob Morris,
> called "typo". Aside from the file "eign" of the very most common
> English words, it had no vocabulary. Instead it evaluated the
> likelihood that any particular word came from a source with the
> same letter-trigram frequencies as the document as a whole. The
> words were then printed in increasing order of likelihood. Typos
> tended to come early in the list.

This was written up in the same BSTJ number that talked about many of the troff pre-processors and other DWB tools, IIRC.  Was that the "big" UNIX edition?  Either way, the paper is well worth a read if you can find it (and I'm sorry I can't recall the title right now).