NAME Convert::EastAsianWidth - Convert between full- and half-width characters VERSION This document describes version 1.00 of Convert:EastAsianWidth, released November 17, 2009. SYNOPSIS # Exports to_fullwidth() and to_halfwidth() by default use Convert::EastAsianWidth; my $u = to_fullwidth('ABC'); # Full-width variant of 'ABC' my $b = to_fullwidth('ABC', 'big5'); # Ditto, but in big5 encoding my $x = to_halfwidth($u); # Gets back 'ABC' my $y = to_halfwidth($b, 'big5'); # Same as above DESCRIPTION This module efficiently convert between full- and half-width ASCII and punctuation characters. The first argument is the string to be converted; the second one represents the input and encodings. If omitted, both are assumed to be Unicode strings. CAVEATS This module does not handle conversion of full/half width katakana, which is a slightly more complicated problem because of the need to incorporate diacritics. Many thanks to BKB for the disclaimer above and for suggesting a more efficient conversion algorithm based on "tr///". SEE ALSO Encode AUTHORS 唐鳳 CC0 1.0 Universal To the extent possible under law, 唐鳳 has waived all copyright and related or neighboring rights to Module-Signature. This work is published from Taiwan.