Grap – Kernighan and Bentley's language for typesetting graphs (1984) [pdf]
doc.cat-v.org
doc.cat-v.org
one fun thing of note is the bell labs penchant for lines of positional-feeling lowercase keyword spam in their DSLs (`ticks bot out from 10 to 70 by 10 ""`, `ticks right out at rep 1, 3, 10, 30, 100`); this is something that carries on through stuff like plumbfile syntax (http://man.cat-v.org/plan_9/6/plumb), or even, many years down the line out the labs, iptables/pf rules
I was amused by the question posed in the "Alternatives" section:
> Besides GRAP and your local draftsperson, what other choices are there?
I was never worried by the keyword spam.
https://edg.uchicago.edu/tutorials/pretty_plots_with_gnuplot...
Quite a lot more palatable to my eyes, but also GRAP is fun. How things have changed/stayed the same/etc.