The bundled unidata.map is created from UnicodeData.txt, DerivedNormalizationProps.txt, SpecialCasing.txt and EastAsianWidth.txt of Unicode 6.0.
To update unidata.map,
ruby mkunidata.rb UnicodeData.txt DerivedNormalizationProps.txt SpecialCasing.txt EastAsianWidth.txt > unidata.map
Generated with the Darkfish Rdoc Generator 2.