map 0x00-0x5A to U+0000
map 0x5B to U+00C4
map 0x5C to U+00D6
map 0x5D to U+00C5
map 0x5E to U+00DC
map 0x5F to U+005F
map 0x60 to U+00E9
map 0x61-0x7A to U+0061
map 0x7B to U+00E4
map 0x7C to 00F6
map 0x7D to 00E5
map 0x7E to 00FC
map 0x7F to U+007F