Each line contains a code point and the corresponding Unicode
character code separated by a space. Both code points and Unicode
character codes are in hexadecimal preceded by "0x". Comments may be
-used, starting with "#". Code ranges may also be used, with endpoints
-separated by "-", covering the same number of codepoints and
-unicodes.
+used, starting with "#". Code ranges may also be used, with
+(inclusive) start and end code points separated by "-" followed by the
+unicode of the start of the range
Examples:
0xA0 0x00A0 # no-break space
-0x81308130-0x81308435 0x0080-0x00A3 # map onto a Unicode range
+0x8141-0x8143 0x4E04 # map onto a Unicode range
(2) Source of mapping files