Re: Trunk still not open

[Stephen J. Turnbull]

Eli Zaretskii writes:

 > Yes.  Its readers want to know how to write their program, not how
 > Emacs was designed and why.  The latter is (or should be) subject for
 > a separate document, as yet unwritten (AFAIK).

To the extent that you want lower-level details from the horse's
mouth, somebody will probably have to interview Richard (general
Emacs), Gerd (redisplay), and Ken'ichi (MULE), among others (those are
the areas where I know a particular person did a lot of design by
themselves, but I don't have comprehensive knowledge of Emacs) but
Richard's paper

http://www.gnu.org/software/emacs/emacs-paper.html

is a pretty good start on the "whys" and many of the higher-level
"hows" of Emacs design.  Also

http://www.xemacs.org/Documentation/21.5/html/internals.html

is in great part relevant, with many lower-level details that are
applicable to Emacs as well.  It is quite incomplete and there are
piles of junk that are basically old block comments mover there from
the source, but I still find it useful when I read Emacs C code.