23 Feb
2021
23 Feb
'21
8:47 a.m.
I can imagine a simple perl (or python or whatever)
script that would run
through groff input [and] determine which preprocessors are actually
needed ...
Brian imagined such and implemented it way back when. Though I used
it, I've forgotten its name. One probably could have fooled it by
tricks like calling pic only in a .so file and perhaps renaming .so.
But I never heard of it failing in real life. It does impose an extra
pass over the input, but may well save a pass compared to the
defensive groff -pet that I often use or to the rerun necessary when I
forget to mention some or all of the filters.