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Unicode::EastAsianWidtUser Contributed Perl DocumentUnicode::EastAsianWidth(3)

NAME
       Unicode::EastAsianWidth - East Asian Width properties

SYNOPSIS
	   use Unicode::EastAsianWidth;

	   $_ =	chr(0x2010); # HYPHEN, an ambiguous-width character

	   /\p{InEastAsianAmbiguous}/; # True
	   /\p{InFullwidth}/;	       # False

       To mark ambiguous-width characters as InFullwidth:

	   BEGIN { $Unicode::EastAsianWidth::EastAsian = 1; }
	   use Unicode::EastAsianWidth;

	   $_ =	chr(0x2010); # HYPHEN, an ambiguous-width character
	   /\p{InFullwidth}/;	       # True

DESCRIPTION
       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").

       Ambiguous characters are	treated	by default as part of "InHalfwidth",
       but you can modify this behaviour by assigning a	true value to
       $Unicode::EastAsianWidth::EastAsian at compile time within a "BEGIN"
       block before loading this module:

	   BEGIN { $Unicode::EastAsianWidth::EastAsian = 1; }
	   use Unicode::EastAsianWidth;

       Setting $Unicode::EastAsianWidth::EastAsian at run-time used to work on
       Perl versions between 5.8 and 5.14 due to an implementation detail, but
       it will no longer work on Perl 5.16 and later versions, and hence is
       not recommended.

SEE ALSO
       perlunicode, <http://www.unicode.org/unicode/reports/tr11/>

AUTHORS
       Audrey Tang <cpan@audreyt.org>

LICENSE
       This work is under the CC0 1.0 Universal	license.

       To the extent possible under law, ae^3^3	has waived all copyright and
       related or neighboring rights to	Unicode-EastAsianWidth.

       This work is published from Taiwan.

       <http://creativecommons.org/publicdomain/zero/1.0>

perl v5.32.0			  2019-09-02	    Unicode::EastAsianWidth(3)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHORS | LICENSE

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