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'.

In accord to TR11 cited above, two additional context-sensitive properties are exported: 'InFullwidth' (union of 'Fullwidth' and 'Wide') and 'InHalfwidth' (union of 'Halfwidth', 'Narrow' and 'Neutral').