Unicode/UCD.pm

# This function has traditionally mimicked what is in UnicodeData.txt,
# warts and all. This is a re-write that avoids UnicodeData.txt so that
# it can be removed to save disk space. Instead, this assembles
# information gotten by other methods that get data from various other
# files. It uses charnames to get the character name; and various
# mktables tables.