+ 'cp850' => {inherit => ['cp437' => '90']},
+ 'cp860' => {inherit => ['cp437' => '80-AF']},
+ 'cp861' => {inherit => ['cp865' => '80-AF']},
+ 'cp863' => {inherit => ['cp437' => '80-AF']},
+ 'cp865' => {inherit => ['cp437' => '90-AF']},
+ 'cp852' => {inherit => ['cp850' => '80', 'cp437' => '80']},
+ 'cp857' => {inherit => ['cp850' => '80-AF+D0-EF', 'cp437' => '80']},
+ 'cp775' => {inherit => ['cp850' => '80']}, # partial cp437
+ 'cp866' => {inherit => ['cp437' => '80-AF+E0']},
+ 'cp855' => {inherit => ['cp437' => '80']},
+ 'cp1006' => {inherit => ['iso-8859-6' => 'A0', 'cp437' => '80']},
+ 'cp737' => {inherit => ['cp437' => '80-AF+E0']},
+ 'cp869' => {inherit => ['cp437' => '80']},
+ 'cp862' => {inherit => ['cp437' => '80-9F']},
+ 'cp864' => {inherit => ['MacArabic' => '80', 'iso-8859-6' => '80', 'cp437' => '80']}, #TODO: compare form variants
+
+ 'koi8-u' => {inherit => ['koi8-r' => '90-BF']},
+ 'koi8-f' => {inherit => ['koi8-u' => '90-BF']},
+
+ 'macromanian' => {inherit => ['MacRoman' => 'A0-BF+D0-DF']},
+ 'macrumanian' => {inherit => ['MacRomanian' => 'A0-BF+D0-DF', 'MacRoman' => 'A0-BF+D0-DF']},
+ 'maccroatian' => {inherit => ['MacRoman' => 'A0']},
+ 'maccentraleurroman' => {inherit => ['MacRoman' => '80']},
+ 'macicelandic' => {inherit => ['MacRoman' => 'A0-AF+D0-EF']},
+ 'macturkish' => {inherit => ['MacRoman' => 'D0-DF']}, # F5 is unassigned
+ 'macsami' => {inherit => ['MacIcelandic' => '90-BF+D0-DF+F0', 'MacRoman' => '90']},
+ 'macgreek' => {inherit => ['MacRoman' => '80']},
+ 'maccyrillic' => {inherit => ['MacRoman' => '80']},
+ 'machebrew' => {inherit => ['iso-8859-8' => '80', 'MacRoman' => '80-8F+A0']}, # partial ascii
+ 'macarabic' => {inherit => ['iso-8859-6' => '80', 'cp864' => '80', 'MacRoman' => '80']}, #TODO: multiple parents
+ 'macfarsi' => {inherit => ['MacArabic' => 'B0-BF', 'MacRoman' => '80']},
+
+ 'cp37' => {inherit => ['posix-bc' => '00']},
+ 'posix-bc' => {inherit => ['cp1047' => '40']},
+ 'cp500' => {inherit => ['cp37' => '40-5F+B0-BF']},
+ 'cp1047' => {inherit => ['cp37' => '10-2F+50-5F+A0-BF']},
+ 'cp1026' => {inherit => ['cp37' => '40']},
+ 'cp875' => {inherit => ['cp37' => '30']},