If you're interested in those details, Victor Eijkhout's TeX by Topic is very instructive as well: http://www.eijkhout.net/texbytopic/texbytopic.html http://www

If you're interested in those details, Victor Eijkhout's TeX by Topic is very instructive as well: http://www.eijkhout.net/texbytopic/texbytopic.html http://www.eijkhout.net/texbytopic/texbytopic.html