This file describes use of Emacs 19 on MS-DOG.

* The commands `mode25' and `mode4350' change the number of 
lines of the screen.  You get 43 lines on an EGA monitor, 50 on
a VGA monitor.

* Ctrl-Break takes the place of C-g.  As of djgpp 1.11.maint1 
DON'T USE THIS unless you are running under DPMI (i.e., using
Windows, Qemm, ...)  This will probably be fixed in the next
release of djgpp.

* Character codes 0200-0237 are self-inserting.

* The keyboard support is made as X-like as possible.  This means
that events like M-S-f1 will be generated (byte Shift + Alt + f1).

* Mouse support is partially implemented.

* The `compile' command works on MS-DOG, but it waits for the
compilation to finish before letting you edit again.  There's no other
way to do it, given the lack of asynchronous processes.

* The function `expand-file-name' maps upper case letters to lower
case letters, since MS-DOG does not distinguish.

* The new buffer-local variable `buffer-file-type' controls whether a
file contains text (newlines will be written as CR+LF) or binary data
(newlines written as LF).  Text is specified by nil, and binary by t.
The status of a buffer can be seen in the mode line as "T:" or "B:"
before the major mode.

Normally `buffer-file-type' is set automatically from the variable
`file-name-buffer-file-type-alist' which is an alist mapping regexps
to file types.

You can visit a file explicitly as text, or as binary, using the
commands `find-file-binary' and `find-file-text'.

* A new variable `binary-process' control whether temporary files are
opened as binary or as text files.  nil means text, and t means
binary.  The difference is translation of CR+LF to LF and C-z
handling.

* Environment variables "HOME", "EMACSPATH", "TERM", "SHELL",
"USER", "NAME", and "TZ" are given default values as suitable
for a single user system.  See src/msdos.c for details.

* The function `substitute-in-file-name' disregards case in
environment variables, as the MS-DOG SET command does.

* The variable `msdos-shells' contains a list of commands that
are shells.  This variable is used to convert to map Unix-like
commands like "$SHELL -c /some/command" to MS-DOG commands
like "$SHELL /c \some\command".
