P.S. Actually, after re-reading your mail a bit, I think I know what you meant by your question. Sorry for being confused. Anyway, I think that Groff's ability to have numerical registers of more than 2 characters long is "weird and fancy" relative to classical TROFF. I started learning TROFF from classical TROFF, so that kind of gives me a habit.
On Thu, Dec 7, 2017 at 2:07 AM, Stephanie Björk <katt16777...@gmail.com> wrote: > > I don't see anything weird or fancy that hasn't been a part of groff > > for at least fifteen years. To what are you referring? I'm > > intrigued. > > Perhaps my word choices weren't so good. "Weird, fancy" is kind of > subjective, actually. > I still do think that my macros are using "weird, fancy" stuff, not least > because it takes advantage of Troff's ability to seemingly rewrite itself? > > About the stack implementation, I just had this weird idea of escaping the > macro definition within the macro definition with backslashes and see if it > works and stuff. However, Troff's ability to take values of a numerical > register and use it as a name to another register (.nr my_\na_\nb) > intrigues me very much. > I'm not exactly sure how I found this ability, but I think I found it by > accident. Then I decided to extend my accident and make a reverse polish > notation calculator in Troff, which seems to work for some reason. ( > https://rosettacode.org/wiki/Parsing/RPN_calculator_algorithm#N.2Ft.2Froff > ) > > Nonetheless, I find it rather interesting that Troff can use parts of > itself to rewrite itself. I've never seen other programming languages able > to do this, but I do think there are a few like this that I've not heard of > yet. > > On Wed, Dec 6, 2017 at 6:04 AM, Peter Schaffter <pe...@schaffter.ca> > wrote: > >> On Tue, Dec 05, 2017, Stephanie Björk wrote: >> > as my macros really use weird, fancy stuff. >> >> I don't see anything weird or fancy that hasn't been a part of groff >> for at least fifteen years. To what are you referring? I'm >> intrigued. >> >> -- >> Peter Schaffter >> http://www.schaffter.ca >> >> >
