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package Lingua::JA::Halfwidth; |
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use warnings; |
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use strict; |
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use Carp; |
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use base qw(Exporter); |
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our $VERSION = '0.0.6'; |
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our @EXPORT = qw(is_japanese_halfwidth); |
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sub is_japanese_halfwidth { |
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my $str = shift; |
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if ( $str =~ /[\x{FF61}-\x{FF9F}]/ ) { |
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return 1; |
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} |
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else { |
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return 0; |
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} |
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} |
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1; |
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__END__ |
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=encoding utf-8 |
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=head1 NAME |
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Lingua::JA::Halfwidth - judge given single character is japanese halfwidth or not |
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=head1 SYNOPSIS |
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use strict; |
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use warnings; |
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use Lingua::JA::Halfwidth; |
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use Encode qw(encode_utf8); |
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use utf8; |
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my $string = qw/aãï½³ï¼æ³¢ï½¦/; |
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for (split //, $string) { |
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print encode_utf8($_), ": "; |
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print is_japanese_halfwidth($_), "\n"; |
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} |
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# a: 0 |
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# ã: 0 |
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# ï½³: 1 |
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# ï¼: 0 |
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# æ³¢: 0 |
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# ヲ: 1 |
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=head1 DESCRIPTION |
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This module is aimed to check easily whether given single character is japanese halfwidth or not. |
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Target characters are japanese halfwidth katakana, punctuation, voice marks and bracket. |
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(See also t/01.is_japanese_halfwidth.t) |
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Unicode block is very useful. |
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When judging japanese halfwidth katakana and character used japanese halfwidth, we use \p{InHalfwidthAndFullwidthForms}. |
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But, this unicode block contains fullwidth number and so on... |
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So, I made this module :-) |
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=head1 METHODS |
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=head2 is_japanese_halfwidth |
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is_japanese_halfwidth($str); |
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This method can judge given single character is japanese halfwidth or not. |
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Return value is 1 (japanese halfwidth) or 0 (not japanese halfwidth). |
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=head1 AUTHOR |
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sasata299 C<< <sasata299@livedoor.com> >> |
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http://blog.livedoor.jp/sasata299/ |
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=head1 LICENCE AND COPYRIGHT |
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Copyright (c) 2009, sasata299 C<< <sasata299@livedoor.com> >>. All rights reserved. |
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This module is free software; you can redistribute it and/or |
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modify it under the same terms as Perl itself. See L<perlartistic>. |
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=cut |