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- #!/bin/sh
- # 0. Check whether we're on a console
- TTY="`/usr/bin/tty`"
- case "$TTY" in
- /dev/console|/dev/vc*|/dev/tty[0-9]*)
- ;;
- *)
- echo "unicode_start skipped on $TTY" >&2
- exit 0
- ;;
- esac
- # Enables Unicode processing in the current console.
- #
- # 1. The input side: the keyboard driver.
- # Set the keyboard driver in Unicode mode. (Default is ASCII mode.)
- # This really does nothing with the way normal keys are handled in
- # the kernel. All it does is:
- # - It is necessary for `dumpkeys' in order to not drop U+XXXX
- # entries from the keymaps.
- # - It is necessary for `loadkeys' in order to avoid warnings.
- # - Unicode characters typed as Alt-x1 ... Alt-xn (where x1,...,xn
- # are digits on the numeric keypad) will be emitted in UTF-8.
- kbd_mode -u
- # Change the keyboard mapping in such a way that the non-ASCII keys
- # produce UTF-8 encoded multibyte sequences, instead of single bytes
- # >= 0x80 in a legacy 8-bit encoding.
- # Non-root users are allowed to change the unicode mode of their console, but
- # not the global keymap. root will have to load the keymap in unicode mode
- # explicitly.
- uid="`id -u 2>/dev/null`" ||:
- if [ "$uid" = '0' ]; then
- # There is no way of reverting the effect of "dumpkeys | loadkeys --unicode",
- # the memory of the earlier keymap is lost. Therefore, try
- # to save a copy of the original keymap to be able to reload it in unicode_stop.
- # (see also http://mail.nl.linux.org/linux-utf8/2003-08/msg00053.html):
- [ -n "$HOME" -a "$HOME" != '/' ] ||
- HOME='/root'
- if [ -d "$HOME" -a -w "$HOME" ]; then
- [ -d "$HOME/.kbd" ] ||
- mkdir -- "$HOME/.kbd"
- [ ! -w "$HOME/.kbd" ] ||
- dumpkeys > "$HOME/.kbd/.keymap_sv"
- fi
- # redirect stderr and stdout of loadkeys to /dev/null to avoid the confusing
- # "plus before udiaeresis ignored" warnings.
- dumpkeys | loadkeys --unicode > /dev/null 2>&1
- fi
- # 2. The output side: the console screen.
- # Tell the console output driver that the bytes arriving are UTF-8
- # encoded multibyte sequences.
- if [ -t 1 -a -t 2 ]; then
- printf '\033%%G'
- fi
- stty iutf8
- # Tell the graphics card how to display Unicode characters not
- # contained in the IBM 437 character set (on PCs). The font should
- # have a Unicode map attached, or explicitly specified, e.g.,
- # by giving `def.uni' as a second argument.
- case "$#" in
- 2)
- setfont "$1" -u "$2"
- ;;
- 1)
- setfont "$1"
- ;;
- 0)
- ;;
- *)
- echo "usage: unicode_start [font [unicode map]]"
- ;;
- esac
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