assertEquals("\\'f4", layout.format("\\^{o}")); // �
assertEquals("\\'f6", layout.format("\\\"{o}")); // �
assertEquals("\\u245o", layout.format("\\~{o}")); // �
assertEquals("\\u333o", layout.format("\\={o}"));
assertEquals("\\u334O", layout.format("\\u{o}"));
assertEquals("\\u231c", layout.format("\\c{c}")); // �
assertEquals("{\\uc2\\u339oe}", layout.format("\\oe"));
assertEquals("{\\uc2\\u338OE}", layout.format("\\OE"));
assertEquals("{\\uc2\\u230ae}", layout.format("\\ae")); // �
assertEquals("{\\uc2\\u198AE}", layout.format("\\AE")); // �