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# rdesktop: A Remote Desktop Protocol client.
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# User interface services - XKB Configuration Files Exporter
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# Copyright (C) Marc-Andre Moreau <marcandre.moreau@gmail.com> 2009
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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# Script to export XKB configuration files to keycode -> virtual key code keymaps that are
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# easy to use in rdesktop. This makes keymap maintenance easier to make as all bugs can
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# simply be reported to the XKB Configuration Database project, and then this script can
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# be used to export newer (and fixed) version of the XKB Configuration Database.
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"AE11" => "VK_OEM_MINUS",
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"AE12" => "VK_OEM_PLUS",
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"AB00" => "VK_LSHIFT",
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"AB08" => "VK_OEM_COMMA",
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"AB09" => "VK_OEM_PERIOD",
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"AB11" => "VK_RSHIFT",
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"KP0" => "VK_NUMPAD0",
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"KP1" => "VK_NUMPAD1",
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"KP2" => "VK_NUMPAD2",
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"KP3" => "VK_NUMPAD3",
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"KP4" => "VK_NUMPAD4",
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"KP5" => "VK_NUMPAD5",
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"KP6" => "VK_NUMPAD6",
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"KP7" => "VK_NUMPAD7",
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"KP8" => "VK_NUMPAD8",
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"KP9" => "VK_NUMPAD9",
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"KPDV" => "VK_DIVIDE",
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"KPMU" => "VK_MULTIPLY",
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"KPSU" => "VK_SUBTRACT",
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"KPDL" => "VK_DECIMAL",
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"KPEN" => "VK_RETURN",
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"RTRN" => "VK_RETURN",
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"SPCE" => "VK_SPACE",
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"BKSL" => "VK_OEM_5",
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"LSGT" => "VK_OEM_102",
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"ESC" => "VK_ESCAPE",
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"TLDE" => "VK_OEM_3",
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"CAPS" => "VK_CAPITAL",
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"LFSH" => "VK_LSHIFT",
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"RTSH" => "VK_RSHIFT",
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"LCTL" => "VK_LCONTROL",
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"RCTL" => "VK_RCONTROL",
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"LALT" => "VK_LMENU",
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"RALT" => "VK_RMENU",
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"RGHT" => "VK_RIGHT",
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"INS" => "VK_INSERT",
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"DELE" => "VK_DELETE",
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"PGUP" => "VK_PRIOR",
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"PAUS" => "VK_PAUSE",
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"NMLK" => "VK_NUMLOCK",
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"SCLK" => "VK_SCROLL",
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# This page helps understanding the keys that follow:
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# http://www.stanford.edu/class/cs140/projects/pintos/specs/kbd/scancodes-7.html
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"KANJ" => "VK_KANJI",
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"HANJ" => "VK_HANJA",
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"MUHE" => "VK_NONCONVERT",
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"PRSC" => "VK_SNAPSHOT",
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"KPF1" => "VK_NUMLOCK",
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"KPF2" => "VK_DIVIDE",
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"KPF3" => "VK_MULTIPLY",
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"KPF4" => "VK_SUBTRACT",
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"SELE" => "VK_SELECT",
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# We can ignore LDM (Lock Down Modifier)
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# What are LCMP/RCMP?
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$inDir = getcwd() . "/";
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} elsif(@ARGV == 1) {
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$outDir = getcwd() . "/";
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} elsif(@ARGV == 2) {
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print "Error: Too many arguments\n" .
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"perl xkb.pl <XKB Directory>\n" .
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"perl xkb.pl <XKB Directory> <Output Directory>\n\n" .
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"In Linux, the XKB directory usually is /usr/share/X11/xkb/\n" .
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"The latest version of XKB can always be downloaded at:\n" .
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"http://freedesktop.org/wiki/Software/XKeyboardConfig\n";
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open("SPEC", $inDir . "xkeyboard-config.spec");
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while($line = <SPEC>) {
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if($line =~ m/Version:\s+(.\..)/) {
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$xkbVersion = "version $1";
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# Create directory if it does not exists
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mkdir $outDir or die("Error: Can't create directory $outDir\n");
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open("KCD", $inDir . "keycodes/keycodes.dir") or die("Error: Can't open $inDir" . "keycodes/keycodes.dir\n");
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while($line = <KCD>) {
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if($line =~ m/........ -------- (.+)\((.+)\)/) {
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if($1 ne $previousFile) {
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push(@keymapFiles, $1);
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foreach $keymapFile (@keymapFiles) {
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print "File $keymapFile:\n";
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@directories = split(/\//, $keymapFile);
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splice(@directories, @directories - 1, 1);
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if(@directories > 0) {
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$directory = $outDir;
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for($i = 0; $i < @directories; $i++) {
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$directory .= $directories[$i] . "/";
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if(not -e $directory) {
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mkdir $directory or die("Can't create directory $directory\n");
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open("IN", $inDir . "keycodes/" . $keymapFile);
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open("OUT", ">" . "$outDir" . $keymapFile);
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print OUT "# This file was generated with xkb.pl ($time)\n";
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print OUT "# and is based on the X Keyboard Configuration Database $xkbVersion\n";
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print OUT "# Please use xkb.pl to re-export newer versions of XKB\n";
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while($line = <IN>) {
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if($line =~ m/xkb_keycodes \"(\w+)\"/) {
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print "Exporting \"$1\"\n";
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print OUT "keyboard \"$1\"";
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while($line = <IN>) {
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if($line =~ m/include\W+\"(.+)\"/) {
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print OUT "\n: extends \"$1\"";
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while($line = <IN>) {
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if($line =~ m/<(\w{1,4})>\W+=\W+(\w+);/) {
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if($sym2virt{$1} ne undef) {
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$vkcode = $sym2virt{$1};
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print OUT "\t$vkcode";
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if(length($vkcode) < 8) {
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print OUT "\t<$2>\n";
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# If undef, then this symbolic key code is
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# missing from the sym2virt hash table
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# print "\t$1\t$2\n";
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} elsif($line =~ m/};/) {
added
removed
keymaps/xkb.pl
