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Diffstat (limited to 'contrib/tcsh/eight-bit.me')
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diff --git a/contrib/tcsh/eight-bit.me b/contrib/tcsh/eight-bit.me new file mode 100644 index 0000000..0359d8b --- /dev/null +++ b/contrib/tcsh/eight-bit.me @@ -0,0 +1,143 @@ +.\" $tcsh: eight-bit.me,v 3.2 2006/03/02 18:46:44 christos Exp $ +How to use 8 bit characters +by +Johan Widen +(jw@sics.se) +and +Per Hedeland +(per@erix.ericsson.se) + +.pp +(Disclaimer: This is really a sketch of an approach rather +than a "how-to" document. +Also, it is mostly relevant to Swedish X Window users...) + +.pp +The way I use this facility at present is to add lines such as the following +to my .cshrc: + +.nf +setenv NOREBIND +setenv LC_CTYPE iso_8859_1 +foreach key ( \\\\304 \\\\305 \\\\326 \\\\344 \\\\345 \\\\366 ) + bindkey $key self-insert-command +end +.fi + +.pp +Note that if I used a system with a reasonably complete NLS +(and a tcsh compiled to use it), +all of the above could be replaced with simply setting the LANG environment +variable to an appropriate value - the NLS would then indicate exactly which +characters should be considered printable, and tcsh would do the rebinding +of these automatically. The above works for tcsh's simulated NLS and for +the NLS in SunOS 4.1 - without the NOREBIND setting, all of the +Meta-<non-control-character> bindings would be undone in these cases. + +.pp +These keybindings are the codes for my national characters, but the bindings +(M-d, M-e etc) are not conveniently placed. +They are however consistent with what other programs will see. + +.pp +Now: I actually want the character \\304 to be inserted when I press say '{' +together with a modifier key. I want the behavior to be the same not only +in tcsh but in say cat, an editor and all other programs. I fix this by +performing a keyboard remapping with the +.i xmodmap +program (I use X Windows). + +.pp +I give xmodmap an input something like the following: + +.nf +keycode 26 = Mode_switch +add mod2 = Mode_switch +! if you want Mode_switch to toggle, at the expense of losing +! Caps- or whatever Lock you currently have, add the two lines below +! clear Lock +! add Lock = Mode_switch +! Binds swedish characters on ][\\ +! +keycode 71 = bracketleft braceleft adiaeresis Adiaeresis +keycode 72 = bracketright braceright aring Aring +keycode 95 = backslash bar odiaeresis Odiaeresis +.fi + +or: + +.nf +keysym Alt_R = Mode_switch +add mod2 = Mode_switch +keysym bracketleft = bracketleft braceleft Adiaeresis adiaeresis +keysym bracketright = bracketright braceright Aring aring +keysym backslash = backslash bar Odiaeresis odiaeresis +.fi + +Another, more portable way of doing the same thing is: + +.nf +#!/bin/sh +# Make Alt-] etc produce the "appropriate" Swedish iso8859/1 keysym values +# Should handle fairly strange initial mappings + +xmodmap -pk | sed -e 's/[()]//g' | \\ +awk 'BEGIN { + alt["bracketright"] = "Aring"; alt["braceright"] = "aring"; + alt["bracketleft"] = "Adiaeresis"; alt["braceleft"] = "adiaeresis"; + alt["backslash"] = "Odiaeresis"; alt["bar"] = "odiaeresis"; +} +NF >= 5 && (alt[$3] != "" || alt[$5] != "") { + printf "keycode %s = %s %s ", $1, $3, $5; + if (alt[$3] != "") printf "%s ", alt[$3]; + else printf "%s ", $3; + printf "%s\\n", alt[$5]; + next; +} +alt[$3] != "" { + printf "keycode %s = %s %s %s\\n", $1, $3, $3, alt[$3]; +} +NF >= 5 && ($3 ~ /^Alt_[LR]$/ || $5 ~ /^Alt_[LR]$/) { + printf "keycode %s = %s %s Mode_switch\\n", $1, $3, $5; + if ($3 ~ /^Alt_[LR]$/) altkeys = altkeys " " $3; + else altkeys = altkeys " " $5; + next; +} +$3 ~ /^Alt_[LR]$/ { + printf "keycode %s = %s %s Mode_switch\\n", $1, $3, $3; + altkeys = altkeys " " $3; +} +END { + if (altkeys != "") printf "clear mod2\\nadd mod2 =%s\\n", altkeys; +}' | xmodmap - +.fi + +.pp +Finally, with the binding of the codes of my national characters to +self-insert-command, I lost the ability to use the Meta key to call the +functions previously bound to M-d, M-e, and M-v (<esc>d etc still works). +However, with the assumption that +most of my input to tcsh will be through the +.i xterm +terminal emulator, I can get that ability back via xterm bindings! +Since M-d is the only one of the "lost" key combinations that was +actually bound to a function in my case, +and it had the same binding as M-D, I can use the following in +my .Xdefaults file: + +.nf +XTerm*VT100.Translations: #override \\n\\ + Meta ~Ctrl<Key>d: string(0x1b) string(d) +.fi + +- or, if I really want a complete mapping: + +.nf +XTerm*VT100.Translations: #override \\n\\ + :Meta ~Ctrl<Key>d: string(0x1b) string(d) \\n\\ + :Meta ~Ctrl<Key>D: string(0x1b) string(D) \\n\\ + :Meta ~Ctrl<Key>e: string(0x1b) string(e) \\n\\ + :Meta ~Ctrl<Key>E: string(0x1b) string(E) \\n\\ + :Meta ~Ctrl<Key>v: string(0x1b) string(v) \\n\\ + :Meta ~Ctrl<Key>V: string(0x1b) string(V) +.fi |
