- #EMACS FOR MAC TERMINAL SERIAL#
- #EMACS FOR MAC TERMINAL FULL#
- #EMACS FOR MAC TERMINAL SOFTWARE#
- #EMACS FOR MAC TERMINAL CODE#
Aliases in the variable term-file-alias are provided by default, including vt102, vt125, vt220, vt240, vt300, vt320, vt400, vt420. Note that modern versions of Emacs provide only two compatibility files for DEC terminals, vt100 and vt200.
#EMACS FOR MAC TERMINAL SOFTWARE#
The software flow control protocol (XON/XOFF) will wreak havoc with Emacs keybindings, as discussed above, so the best advice for a local connection is to set the terminal to 9600bps or lower.
#EMACS FOR MAC TERMINAL SERIAL#
The VT200-400 series cannot process more than 9600bps (regardless of the serial connection speeds of which they’re capable) and have no hardware flow control. (This is per etc/TERMS which is admittedly over 20 years old, so perhaps 8-bit controls work now.) Don’t try to open files containing Unicode characters no VT terminal supports Unicode. Make sure you use the “vt200/300/400 mode”, 7-bit, space parity in your terminal communication settings do not use the 8-bit controls. Emacs handles these terminals fairly well, although there is room for improvement. Perhaps the most common terminal mode of all is the vt100, followed closely by vt220. Terminals by Digital Equipment Corporation, or |d|i|g|i|t|a|l| are common, and often emulated. Notes about certain terminals DEC's VT-series of terminals If the Emacs display does end up glitching out, use the command recenter to re-draw the screen. Other ways to handle use of XON/XOFF include using the unix command stty -ixon or (set-input-mode t nil t) from Emacs. If you must use software flow control, the Emacs library flow-ctrl provides some convenience features, most notably the command enable-flow-control which remaps the C-s and C-q keys. The software flow control protocol (XON/XOFF) will interfere with Emacs’ C-s and C-q events, so you’ll want hardware flow control (DTR/DSR or RTS/CTS). Alternatively, you can use stty(1) command, to tweak your serial line parameters.įlow control is crucial at speeds above 9600bps.
You will want to have hardware flow control, and you must turn it on for both the terminal itself, and for the getty process. These libraries usually set reasonable defaults for keybindings and other aspects of the terminal.
#EMACS FOR MAC TERMINAL CODE#
When Emacs starts in a terminal, it tries to load terminal-specific lisp code at “term/$.el”, for example, “term/vt420.el”. These should match your terminal configuration, but in most cases you won’t have to set them yourself. Other relevant environment variables for shells of the sh-family are COLUMNS and LINES. When in doubt, many terminals are compatible with vt220, and most are compatible with vt100, although using these as fallbacks may result in some of the capabilities of a more advanced terminal being disabled.
#EMACS FOR MAC TERMINAL FULL#
Consult your operating system’s terminfo database for a full list of supported terminal types. Therefore, its value should be set carefully to match the capabilities of your terminal. The value of the TERM variable will be used by command line programs to look up terminal capabilities in the terminfo database on your system. profile because under most circumstances, it should be set for you by either your terminal emulator software or by the getty process that controls your terminal. Note that, contrary to advice found throughout the Internet, in most circumstances you should not set TERM in your. On sysvinit-based systems, this is usually controlled by the init process and configured in /etc/inittab, while on newer systemd-based systems, it is configured by a serial console unit file (usually stored in but this varies depening on the distribution). For actual serial terminals, it is set by the getty program (usually agetty on GnuIsNotUnix systems) that controls the serial socket. For xterm and other graphical terminal emulators, it is set by the emulator program itself. Under most circumstances, it gets its setting from the program that first launches the serial connection for the terminal. The most basic environment variable on the Unix-like operating systems that affects serial terminals is TERM. A lot of reference information for terminals, especially DEC and compatible terminals, is located at. EmacsOnVMS is also a candidate topic here, and perhaps EmacsForOSTwo, but other systems are not likely to be accessed via a serial terminal. Most of this applies to Unix-like systems, like the GnuIsNotUnix and the BSDs. Emacs includes support for not only vt100 and vt220 but many other terminal types. This node is not about running Emacs on these terminal emulators, but about running it on actual, physical serial terminals. The protocols used by the most popular of these terminals, DEC vt100 and vt220 are emulated by all modern Unix-like operating systems, such as GnuIsNotUnix and the BSDs. These type of terminals were primarily manufactured from the mid-70s to the mid-90s. This is a node about running Emacs on serial text terminals, often erroneously called “dumb terminals”.
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