This module provide user-defined Unicode properties that deal with width status of
East Asian characters, as specified in <http://www.unicode.org/unicode/reports/tr11/>.
It exports the following functions to the caller's scope, to be used by
Perl's Unicode matching system: InEastAsianFullwidth, InEastAsianHalfwidth,
InEastAsianAmbiguous, InEastAsianNarrow InEastAsianWide, InEastAsianNeutral.