+ 'cp866' => ['cp437' => '128'],
+ 'cp855' => ['cp437' => '128'],
+ 'cp1006' => ['cp437' => '128'],
+ 'cp737' => ['cp437' => '128'],
+ 'cp869' => ['cp437' => '128'],
+ 'cp862' => ['cp437' => '128'],
+ 'cp864' => ['cp437' => '128'],
+
+ 'koi8-u' => ['koi8-r' => 128],
+ 'koi8-f' => ['koi8-u' => 128],