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#!/usr/bin/perl
use strict;
use warnings;
sub process_variant
{
my ($input, $output, $layout, $variant, $cmd) = @_;
my $line;
my $level;
my $match;
open (IN, $input) || return 0;
open (OUT, ">$output") || return 0;
$level = 0;
$match = 0;
while ($line = <IN>) {
if (($line =~ m/<layoutList>/) && ($level eq 0)) { $level++ }
if (($line =~ m/<layout>/) && ($level eq 1)) { $level++; }
if (($line =~ m/<name>$layout<\/name>/) && ($level eq 2)) { $match = 1 }
if (($line =~ m/<variantList>/) && ($level eq 2)) { $level++ }
if ($level eq 3) {
# Remove command
if (($cmd eq "remove") && ($line =~ m/<variant>/)) {
# read completely next variant (concat on same line)
while ($line !~ m/<\/variant>/) {
my $line_cat;
unless ($line_cat = <IN>) { last } else { $line .= $line_cat }
}
# correct entry, drop entire line
if ($line =~ m/<name>$variant<\/name>/) { $line = '' }
}
# Add command
if (($cmd eq "add") && $match) {
# some stuff can be written on the same line after tag, so
# remove only tag in $line and still print $line after insertion
$line =~ s/<variantList>//;
$line =~ s/\n//;
print OUT "<variantList>\n";
print OUT "<variant>\n$variant</variant>\n";
$level++;
}
}
# Print current line
print OUT $line;
if (($line =~ m/<\/variantList>/) && ($level eq 3)) { $level-- }
if (($line =~ m/<\/layout>/) && ($level eq 2)) {
$level--;
$match = 0;
}
}
close(OUT);
close(IN);
return 1;
}
sub process_xml
{
my ($file, $variant, $variant_xml, $cmd) = @_;
my $temp = "$file.temp";
if ( ! -f "$file") { return 0 }
&process_variant($file, $temp, "us", $variant, "remove") || die("Error configuring '$file'!");
if ($cmd eq "install") {
&process_variant($temp, $file, "us", $variant_xml, "add") || die("Error configuring '$file'!");
unlink($temp);
}
elsif ($cmd eq "uninstall") {
unlink($file) && rename($temp, $file);
}
return 1;
}
my $XKB = "/usr/share/X11/xkb";
my $VARIANT = "altgr-weur";
my $VARIANT_XML = <<'END_XML';
<configItem>
<name>altgr-weur</name>
<description>English (Western European AltGr dead keys)</description>
<languageList>
<iso639Id>dan</iso639Id>
<iso639Id>nld</iso639Id>
<iso639Id>eng</iso639Id>
<iso639Id>fin</iso639Id>
<iso639Id>fra</iso639Id>
<iso639Id>deu</iso639Id>
<iso639Id>ita</iso639Id>
<iso639Id>nor</iso639Id>
<iso639Id>por</iso639Id>
<iso639Id>spa</iso639Id>
<iso639Id>swe</iso639Id>
</languageList>
</configItem>
END_XML
my ($cmd) = @ARGV;
$cmd //= "help"; # Default value if undefined
# Deal with symbols file
if ($cmd eq "install") {
# Check that our file exists
if ( !-f "$XKB/symbols/$VARIANT") {
die("Error: file '$XKB/symbols/$VARIANT' not found!\n");
}
# Remove existing backup file if any
if (-f "$XKB/symbols/us.$VARIANT.bak") {
unlink("$XKB/symbols/us.$VARIANT.bak");
}
# Make a backup of "us" file
`cp "$XKB/symbols/us" "$XKB/symbols/us.$VARIANT.bak"`;
# Concat backup "us" file with our file into new "us" file
`cat "$XKB/symbols/us.$VARIANT.bak" "$XKB/symbols/$VARIANT" > "$XKB/symbols/us"`;
}
elsif ($cmd eq "uninstall")
{
# Restore existing backup file if any
if (-f "$XKB/symbols/us.$VARIANT.bak") {
rename("$XKB/symbols/us.$VARIANT.bak", "$XKB/symbols/us");
}
}
else
{
die("usage: $0 install|uninstall\n");
}
# Deal with evdev
if (-f "$XKB/rules/evdev.extra.xml") {
&process_xml("$XKB/rules/evdev.extras.xml", $VARIANT, $VARIANT_XML, $cmd);
#https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1029979
&process_xml("$XKB/rules/evdev.xml", $VARIANT, $VARIANT_XML, $cmd);
}
elsif (-f "$XKB/rules/evdev.xml") {
&process_xml("$XKB/rules/evdev.xml", $VARIANT, $VARIANT_XML, $cmd);
}
# Deal with base
if (-f "$XKB/rules/base.extras.xml") {
&process_xml("$XKB/rules/base.extras.xml", $VARIANT, $VARIANT_XML, $cmd);
}
elsif (-f "$XKB/rules/base.xml") {
&process_xml("$XKB/rules/base.xml", $VARIANT, $VARIANT_XML, $cmd);
}
elsif (-f "$XKB/base.xml") {
&process_xml("$XKB/base.xml", $VARIANT, $VARIANT_XML, $cmd);
}
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