> On 8 Jan 2020, at 16:02, Clem Cole wrote: > > below... -- warning veering a little from pure UNIX history, but trying to clarify what I can and then moving to COFF for follow up. > > On Wed, Jan 8, 2020 at 12:23 AM Brian Walden > wrote: > .... > > - CMU's ALGOL68S from 1978 list all these ways -- > co comment > comment comment > pr pragmat > pragmat pragmat I remember that a pragma (at least in Algol68R (ICL 1900 series) and I would need to reread the formal definition to see if it was general) was not a comment. It was a note to the compiler - which could choose to use it or lose it. > # (comment symbol) comment > :: (pragmat symbol) pragmat > (its for UNIX v6 or v7 so not surprising # is a comment) > http://www.softwarepreservation.org/projects/ALGOL/manual/a68s.txt/view >