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.\" ========================================================================
.\"
.IX Title "PERLCN 1"
.TH PERLCN 1 "2002-11-24" "perl v5.8.0" "Perl Programmers Reference Guide"
.SH "NAME"
perlcn \- ���� Perl ָ�
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
�ӭ�� Perl ���!
.PP
� 5.8.0 ��ʼ, Perl ������ Unicode (ͳһ�) ֧Ԯ,
Ҳ��֧Ԯ������ϵ������ʽ; \s-1CJK\s0 (�?պ?) �����һ��.
Unicode ������׼, �ͼ����������: ����, ����,
������һ� (ϣ��, ����, ����, ϣ���, ӡ��,
ӡ���, ��). �Ҳ?��˶��ҵϵͳ�ƽ� (?? \s-1PC\s0 ����).
.PP
Perl ��� Unicode ����. ��ʾ Perl ���������� Unicode
�ʾ; Perl ��ʽ��� (�?���ʾʽ��) Ҳ�� Unicode ����.
��?뼰���, Ϊ���� Unicode ֮ǰ����ʽ�����, Perl
��� Encode ��ģ�, ��?�����ȡ�д��������.
.PP
Encode ��ģ�֧Ԯ����������ʽ ('gb2312' �ʾ 'euc\-cn'):
.PP
.Vb 6
\&    euc-cn      Unix �����, Ҳ��������
\&    gb2312-raw  ��� (���) GB2312 ���
\&    gb12345     ������������
\&    iso-ir-165  GB2312 + GB6345 + GB8565 + ����
\&    cp936       ��ҳ 936, Ҳ��� 'GBK' (�����) ָ�
\&    hz          7 ����ʽ GB2312 ��
.Ve
.PP
���˵, � EUC-CN �����ת� Unicode, ��?��ָ�:
.PP
.Vb 1
\&    perl -Mencoding=euc-cn,STDOUT,utf8 -pe1 < file.euc-cn > file.utf8
.Ve
.PP
Perl Ҳ��� \*(L"piconv\*(R", һ֧�?�? Perl д����ת�����, ��?�:
.PP
.Vb 2
\&    piconv -f euc-cn -t utf8 < file.euc-cn > file.utf8
\&    piconv -f utf8 -t euc-cn < file.utf8 > file.euc-cn
.Ve
.PP
��, �� encoding ģ�, �����д����Ϊ�λ����, ?���:
.PP
.Vb 7
\&    #!/usr/bin/env perl
\&    # �� euc-cn ����; �׼��?뼰�׼����� euc-cn ��
\&    use encoding 'euc-cn', STDIN => 'euc-cn', STDOUT => 'euc-cn';
\&    print length("��");            #  2 (˫���ʾ��)
\&    print length('��');            #  4 (����ʾ��)
\&    print index("׻׻��", "��"); # -1 (��������)
\&    print index('׻׻��', '��'); #  1 (�������ʼ)
.Ve
.PP
���һ����, \*(L"׻\*(R" ������� \*(L"׻\*(R" ��һ������ EUC-CN
�� \*(L"�\*(R"; \*(L"׻\*(R" �������� \*(L"�\*(R" ��һ������ \*(L"�\*(R".
�����ǰ EUC-CN �����������.
.Sh "�������"
.IX Subsection "�������"
?��Ҫ�������, ��� \s-1CPAN\s0 (<http://www.cpan.org/>) ��
Encode::HanExtra ģ�. �Ŀǰ�������ʽ:
.PP
.Vb 1
\&    gb18030     �������, ������
.Ve
.PP
��, Encode::HanConvert ģ�������ת�������:
.PP
.Vb 2
\&    big5-simp   Big5 ����� Unicode �����ת
\&    gbk-trad    GBK ����� Unicode �����ת
.Ve
.PP
?�? \s-1GBK\s0 � Big5 ֮��ת, ����ģ���� b2g.pl � g2b.pl �֧��,
�����ʹ���д�:
.PP
.Vb 3
\&    use Encode::HanConvert;
\&    $euc_cn = big5_to_gb($big5); # � Big5 תΪ GBK
\&    $big5 = gb_to_big5($euc_cn); # � GBK תΪ Big5
.Ve
.Sh "�һ���Ϣ"
.IX Subsection "�һ���Ϣ"
��� Perl �����˵��� (��?���?�д�), �ѧϰ����
Perl �֪ʶ, �� Unicode �ʹ��ʽ. ��, ����Դ����:
.Sh "�� Perl �Դ��ַ"
.IX Subsection "�� Perl �Դ��ַ"
.IP "<http://www.perl.com/>" 4
.IX Item "<http://www.perl.com/>"
Perl ��ҳ (�ŷ���˾ά�)
.IP "<http://www.cpan.org/>" 4
.IX Item "<http://www.cpan.org/>"
Perl ����� (Comprehensive Perl Archive Network)
.IP "<http://lists.perl.org/>" 4
.IX Item "<http://lists.perl.org/>"
Perl ���̳һ�
.Sh "ѧϰ Perl ��ַ"
.IX Subsection "ѧϰ Perl ��ַ"
.IP "<http://www.oreilly.com.cn/html/perl.html>" 4
.IX Item "<http://www.oreilly.com.cn/html/perl.html>"
������ŷ�� Perl ��
.Sh "Perl ʹ����"
.IX Subsection "Perl ʹ����"
.IP "<http://www.pm.org/groups/asia.shtml#China>" 4
.IX Item "<http://www.pm.org/groups/asia.shtml#China>"
�� Perl ���һ�
.Sh "Unicode ���ַ"
.IX Subsection "Unicode ���ַ"
.IP "<http://www.unicode.org/>" 4
.IX Item "<http://www.unicode.org/>"
Unicode ѧ�ѧ� (Unicode �׼����)
.IP "<http://www.cl.cam.ac.uk/%7Emgk25/unicode.html>" 4
.IX Item "<http://www.cl.cam.ac.uk/%7Emgk25/unicode.html>"
Unix/Linux �� \s-1UTF\-8\s0 � Unicode ���
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Encode, Encode::CN, encoding, perluniintro, perlunicode
.SH "AUTHORS"
.IX Header "AUTHORS"
Jarkko Hietaniemi <jhi@iki.fi>
.PP
Autrijus Tang (���) <autrijus@autrijus.org>