How To Get Unicode working in the Terminal | skybert.net

How To Get Unicode working in the Terminal


These days, getting Unicode support in most applications is easy. It usually just works out of the box.

However, to get all international characters to work (Chinese, Bangla and so on) when running Emacs in a terminal inside an SSH session, I've found it necessary to make some more changes. I've seen others having the same kind of issues when running local terminal sessions or remote ssh sessions too, so here's a runthrough of the typical things you need to sort out when you encounter problems related to displaying international characters.

Terminal

Use a terminal that supports unicode characters. I use urxvt.

Font

Be sure that the shell uses a font that can display unicode characters. Otherwise, you'll see a rectangle instead of the international character, just like the yellow National Geographic frame (except that you'll probably see white ones).

The default font (e.g. the font you get when you start your terminal (e.g. urxvt or xterm) with the parameter -fn 7x14) should do fine.

If you're using a terminal emulator like PuTTY or the default Cygwin shell, checkout their settings dialogues for a font which supports Unicode characters.

Locale

Your system must have a locale that supports utf-8 in order for Unicode characters to be displayed correctly (strictly speaking, any Unicode encoding would do, but for all practical purposes, using, describing and referring to utf-8 will suffice).

$ locale -a | grep -i utf

If this doesn't list anything, generate one. On Debian based systems, you can do:

# dpkg-reconfigure locales

Be sure to use this locale to ensure that applications picks up that you want unicode support. These are my settings in /etc/environment:

export LC_ALL=en_GB.utf8
export LANG=en_GB.utf8

You can also set these in your user's settings file, e.g. ~/.basrhc.

You must activate these settings, the easiest of which is to source .bashrc or whatever file you wrote these settings to.

My additions to .emacs

png

;; UTF-8 support
(prefer-coding-system       'utf-8)
(set-default-coding-systems 'utf-8)
(set-terminal-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)

(setq x-select-request-type '(UTF8_STRING COMPOUND_TEXT TEXT STRING))

With these settings in place, UTF-8 works, even in my VM mail reader.


Licensed under CC BY Creative Commons License ~ gmail torstein.k.johansen @ gmail ~ twitter @torsteinkrause ~