Hello, I've been trying to regularly use troff for my writings. Being a physicist I generally write a lot of math. What I miss quite often are special math characters like Dirac brackets, in TeX \langle, \rangle (so far I've replaced them just with < and >; but then I sometimes need them bigger...), but also others. I want to ask if somebody tried to add such characters using some fonts or at least can give some instructions as to what needs to be done.
If I understand right, troff only needs to know widths of characters, i.e. /sys/lib/troff/font/devutf/'font_description'. Is that all troff needs? Then I need to both somehow see the characters on screen and get them to the postscript result, i.e. have a real font file for both. Is there any documentation about how this should be done? Is there anywhere any documentation about how 'dpost' (tr2post) works? Thanks Ruda