Char::Latin4 - Source code filter to escape Latin-4
use Char::Latin4; use Char::Latin4 version; --- require version # "no Char::Latin4;" not supported or $ perl Char/Latin4.pm Latin-4_script.pl > Escaped_script.pl.e then $ perl Escaped_script.pl.e Latin-4_script.pl --- script written in Latin-4 Escaped_script.pl.e --- escaped script emulate Perl5.6 on perl5.00503 use warnings; use warnings::register; dummy functions: utf8::upgrade(...); utf8::downgrade(...); utf8::encode(...); utf8::decode(...); utf8::is_utf8(...); utf8::valid(...); bytes::chr(...); bytes::index(...); bytes::length(...); bytes::ord(...); bytes::rindex(...); bytes::substr(...);
Let's start with a bit of history: jperl 4.019+1.3 introduced Latin-4 support. You could apply chop() and regexps even to complex CJK characters.
JPerl in CPAN Perl Ports (Binary Distributions)
said before,
As of Perl 5.8.0 it is suggested that instead of JPerl (which is based on a quite old release of Perl) you should just use Perl 5.8.0, since it can do all that JPerl did, and more.
But was it really so?
In this country, Latin-4 is widely used on mainframe I/O, the personal computer, and the cellular phone. This software treats Latin-4 directly, but doesn't treat Latin-1. Therefor there is not UTF8 flag.
A difficult solution makes the problem more difficult. Shall we escape from the encode problem?
JPerl is very useful software. -- Oops, note, this "JPerl" means Japanized or Japanese Perl, so is unrelated to Java and JVM. Therefore, I named this software better, fitter Char::Latin4.
Now, the last version of JPerl is 5.005_04 and is not maintained now.
Japanization modifier WATANABE Hirofumi said,
"Because WATANABE am tired I give over maintaing JPerl."
at Slide #15: "The future of JPerl" of
ftp://ftp.oreilly.co.jp/pcjp98/watanabe/jperlconf.ppt
in The Perl Confernce Japan 1998.
When I heard it, I thought that someone excluding me would maintain JPerl. And I slept every night hanging a sock. Night and day, I kept having hope. After 10 years, I noticed that white beard exists in the sock :-)
This software is a source code filter to escape Perl script encoded by Latin-4 given from STDIN or command line parameter. The character code is never converted by escaping the script. Neither the value of the character nor the length of the character string change even if it escapes.
What's this software good for ...
Upper Compatibility like Perl4 to Perl5
Maximum Portability like jcode.pl
Handles Raw Latin-4, No UTF8 flag like JPerl
Remains One Interpreter like Encode module
Code Set Independent like Ruby
There's more than one way to do it like Perl itself
Let's make yet another future by JPerl's future.
+---------------------------------------+ | JPerl Application Script | Your Script +---------------------------------------+ | Source Code Filter, Runtime Routine | ex. Char/Latin4.pm, Char/Elatin4.pm +---------------------------------------+ | PVM 5.00503 or later | ex. perl 5.00503 +---------------------------------------+
A Perl Virtual Machine (PVM) enables a set of computer software programs and data structures to use a virtual machine model for the execution of other computer programs and scripts. The model used by a PVM accepts a form of computer intermediate language commonly referred to as Perl byteorientedcode. This language conceptually represents the instruction set of a byte-oriented, capability architecture.
I discovered this mail again recently.
[Tokyo.pm] jus Benkyoukai
http://mail.pm.org/pipermail/tokyo-pm/1999-September/001854.html
save as: SJIS.pm
package SJIS; use Filter::Util::Call; sub multibyte_filter { my $status; if (($status = filter_read()) > 0 ) { s/([\x81-\x9f\xe0-\xef])([\x40-\x7e\x80-\xfc])/ sprintf("\\x%02x\\x%02x",ord($1),ord($2)) /eg; } $status; } sub import { filter_add(\&multibyte_filter); } 1;
I am glad that I could confirm my idea is not so wrong.
Char/Latin4.pm --- source code filter to escape Latin-4 Char/Elatin4.pm --- run-time routines for Char/Latin4.pm perl55.bat --- find and run perl5.5 without %PATH% settings perl56.bat --- find and run perl5.6 without %PATH% settings perl58.bat --- find and run perl5.8 without %PATH% settings perl510.bat --- find and run perl5.10 without %PATH% settings perl512.bat --- find and run perl5.12 without %PATH% settings perl514.bat --- find and run perl5.14 without %PATH% settings perl64.bat --- find and run perl64 without %PATH% settings strict.pm_ --- dummy strict.pm warnings.pm_ --- poor warnings.pm warnings/register.pm_ --- poor warnings/register.pm Rename and install strict.pm_ of this distribution to strict.pm if your system doesn't have strict.pm.
This software adds the function by 'Escaping' it always, and nothing of the past is broken. Therefore, 'Possible job' never becomes 'Impossible job'. This approach is effective in the field where the retreat is never permitted. Modern Perl/perl can not always solve the problem. Often, it means an incompatible upgrade part to traditional Perl should be rewound.
You need write 'use Char::Latin4;' in your script.
--------------------------------- Before After --------------------------------- (nothing) use Char::Latin4; ---------------------------------
The character classes are redefined as follows to backward compatibility.
--------------------------------------------------------------------------- Before After --------------------------------------------------------------------------- . (?:[^\x0A]) (?:[\x00-\xFF]) (/s modifier) \d [0-9] \s [\x09\x0A\x0C\x0D\x20] \w [0-9A-Z_a-z] \D (?:[^0-9]) \S (?:[^\x09\x0A\x0C\x0D\x20]) \W (?:[^0-9A-Z_a-z]) \h [\x09\x20] \v [\x0C\x0A\x0D] \H (?:[^\x09\x20]) \V (?:[^\x0C\x0A\x0D]) \C [\x00-\xFF] \X X (so, just 'X') \R (?:\x0D\x0A|[\x0A\x0D]) \N (?:[^\x0A]) ---------------------------------------------------------------------------
Also POSIX-style character classes.
--------------------------------------------------------------------------- Before After --------------------------------------------------------------------------- [:alnum:] [\x30-\x39\x41-\x5A\x61-\x7A] [:alpha:] [\x41-\x5A\x61-\x7A] [:ascii:] [\x00-\x7F] [:blank:] [\x09\x20] [:cntrl:] [\x00-\x1F\x7F] [:digit:] [\x30-\x39] [:graph:] [\x21-\x7F] [:lower:] [\x61-\x7A] [:print:] [\x20-\x7F] [:punct:] [\x21-\x2F\x3A-\x3F\x40\x5B-\x5F\x60\x7B-\x7E] [:space:] [\x09\x0A\x0B\x0C\x0D\x20] [:upper:] [\x41-\x5A] [:word:] [\x30-\x39\x41-\x5A\x5F\x61-\x7A] [:xdigit:] [\x30-\x39\x41-\x46\x61-\x66] [:^alnum:] (?:[^\x30-\x39\x41-\x5A\x61-\x7A]) [:^alpha:] (?:[^\x41-\x5A\x61-\x7A]) [:^ascii:] (?:[^\x00-\x7F]) [:^blank:] (?:[^\x09\x20]) [:^cntrl:] (?:[^\x00-\x1F\x7F]) [:^digit:] (?:[^\x30-\x39]) [:^graph:] (?:[^\x21-\x7F]) [:^lower:] (?:[^\x61-\x7A]) [:^print:] (?:[^\x20-\x7F]) [:^punct:] (?:[^\x21-\x2F\x3A-\x3F\x40\x5B-\x5F\x60\x7B-\x7E]) [:^space:] (?:[^\x09\x0A\x0B\x0C\x0D\x20]) [:^upper:] (?:[^\x41-\x5A]) [:^word:] (?:[^\x30-\x39\x41-\x5A\x5F\x61-\x7A]) [:^xdigit:] (?:[^\x30-\x39\x41-\x46\x61-\x66]) ---------------------------------------------------------------------------
Also \b and \B are redefined as follows to backward compatibility.
--------------------------------------------------------------------------- Before After --------------------------------------------------------------------------- \b (?:\A(?=[0-9A-Z_a-z])|(?<=[\x00-\x2F\x40\x5B-\x5E\x60\x7B-\xFF])(?=[0-9A-Z_a-z])|(?<=[0-9A-Z_a-z])(?=[\x00-\x2F\x40\x5B-\x5E\x60\x7B-\xFF]|\z)) \B (?:(?<=[0-9A-Z_a-z])(?=[0-9A-Z_a-z])|(?<=[\x00-\x2F\x40\x5B-\x5E\x60\x7B-\xFF])(?=[\x00-\x2F\x40\x5B-\x5E\x60\x7B-\xFF])) ---------------------------------------------------------------------------
Insert 'Char::Elatin4::' at head of function name. Char/Elatin4.pm provides your script Char::Elatin4::* functions.
--------------------------------- Before After --------------------------------- lc Char::Elatin4::lc lcfirst Char::Elatin4::lcfirst uc Char::Elatin4::uc ucfirst Char::Elatin4::ucfirst chr Char::Elatin4::chr glob Char::Elatin4::glob --------------------------------- ------------------------------------------------------------------------------------------------------------------------ Before After ------------------------------------------------------------------------------------------------------------------------ use Perl::Module; BEGIN { require 'Perl/Module.pm'; Perl::Module->import() if Perl::Module->can('import'); } use Perl::Module @list; BEGIN { require 'Perl/Module.pm'; Perl::Module->import(@list) if Perl::Module->can('import'); } use Perl::Module (); BEGIN { require 'Perl/Module.pm'; } no Perl::Module; BEGIN { require 'Perl/Module.pm'; Perl::Module->unimport() if Perl::Module->can('unimport'); } no Perl::Module @list; BEGIN { require 'Perl/Module.pm'; Perl::Module->unimport(@list) if Perl::Module->can('unimport'); } no Perl::Module (); BEGIN { require 'Perl/Module.pm'; } ------------------------------------------------------------------------------------------------------------------------
Char/Latin4.pm remove 'bytes::' at head of function name.
------------------------------------ Before After ------------------------------------ bytes::chr chr bytes::index index bytes::length length bytes::ord ord bytes::rindex rindex bytes::substr substr ------------------------------------
Char/Latin4.pm remove '\' at head of alphanumeric regexp metasymbols \N, \p, \P and \X. By this method, you can avoid the trap of the abstraction.
------------------------------------ Before After ------------------------------------ \N{CHARNAME} N{CHARNAME} \p{L} p{L} \p{^L} p{^L} \p{\^L} p{\^L} \pL pL \P{L} P{L} \P{^L} P{^L} \P{\^L} P{\^L} \PL PL \X X ------------------------------------
Char/Elatin4.pm does "BEGIN { unshift @INC, '/Perl/site/lib/Char::Latin4' }" at head. Store the standard module modified for Char::Latin4 software in this directory to override built-in standard modules.
You need copy built-in standard module to /Perl/site/lib/Char::Latin4 and change 'use utf8;' to 'use Char::Latin4;' in its. You need help yourself for now.
Back to and see 'Escaping Your Script'. Enjoy hacking!!
Using warnings pragma on perl5.00503 by rename files. warnings.pm_ --> warnings.pm warnings/register.pm_ --> warnings/register.pm
----------------------------------------------------------- Before After ----------------------------------------------------------- use strict; use strict; no strict qw(refs); use 5.12.0; use 5.12.0; no strict qw(refs); require utf8; # require utf8; require bytes; # require bytes; require charnames; # require charnames; require I18N::Japanese; # require I18N::Japanese; require I18N::Collate; # require I18N::Collate; require I18N::JExt; # require I18N::JExt; require File::DosGlob; # require File::DosGlob; require Wild; # require Wild; require Wildcard; # require Wildcard; require Japanese; # require Japanese; use utf8; # use utf8; use bytes; # use bytes; use charnames; # use charnames; use I18N::Japanese; # use I18N::Japanese; use I18N::Collate; # use I18N::Collate; use I18N::JExt; # use I18N::JExt; use File::DosGlob; # use File::DosGlob; use Wild; # use Wild; use Wildcard; # use Wildcard; use Japanese; # use Japanese; no utf8; # no utf8; no bytes; # no bytes; no charnames; # no charnames; no I18N::Japanese; # no I18N::Japanese; no I18N::Collate; # no I18N::Collate; no I18N::JExt; # no I18N::JExt; no File::DosGlob; # no File::DosGlob; no Wild; # no Wild; no Wildcard; # no Wildcard; no Japanese; # no Japanese; ----------------------------------------------------------- Comment out pragma to ignore utf8 environment, and Char/Elatin4.pm provides these functions.
Dummy utf8::upgrade
$num_octets = utf8::upgrade($string); Returns the number of octets necessary to represent the string.
Dummy utf8::downgrade
$success = utf8::downgrade($string[, FAIL_OK]); Returns true always.
Dummy utf8::encode
utf8::encode($string); Returns nothing.
Dummy utf8::decode
$success = utf8::decode($string); Returns true always.
Dummy utf8::is_utf8
$flag = utf8::is_utf8(STRING); Returns false always.
Dummy utf8::valid
$flag = utf8::valid(STRING); Returns true always.
Dummy bytes::chr
This function is same as chr.
Dummy bytes::index
This function is same as index.
Dummy bytes::length
This function is same as length.
Dummy bytes::ord
This function is same as ord.
Dummy bytes::rindex
This function is same as rindex.
Dummy bytes::substr
This function is same as substr.
This software uses the flock function for exclusive control. The execution of the program is blocked until it becomes possible to read or write the file. You can have it not block in the flock function by defining environment variable SJIS_NONBLOCK. Example: SET SJIS_NONBLOCK=1 (The value '1' doesn't have the meaning)
Please patches and report problems to author are welcome.
Modifier /a /d /l And /u Of Regular Expression
The concept of this software is not to use two or more encoding methods at the same time. Therefore, modifier /a /d /l and /u are not supported. \d means [0-9] always.
INABA Hitoshi <ina@cpan.org>
This project was originated by INABA Hitoshi.
This software is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.
This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
P.401 See chapter 15: Unicode of ISBN 0-596-00027-8 Programming Perl Third Edition.
Before the introduction of Unicode support in perl, The eq operator just compared the byte-strings represented by two scalars. Beginning with perl 5.8, eq compares two byte-strings with simultaneous consideration of the UTF8 flag.
Information processing model beginning with perl 5.8 +----------------------+---------------------+ | Text strings | | +----------+-----------| Binary strings | | UTF8 | Latin-1 | | +----------+-----------+---------------------+ | UTF8 | Not UTF8 | | Flagged | Flagged | +--------------------------------------------+ http://perl-users.jp/articles/advent-calendar/2010/casual/4 You should memorize this figure. (Why is only Latin-1 special?)
This change consequentially made a big gap between a past script and new script. Both scripts cannot re-use the code mutually any longer. Because a new method puts a strain in the programmer, it will still take time to replace all the in existence scripts.
The biggest problem of new method is that the UTF8 flag can't synchronize to real encode of string. Thus you must debug about UTF8 flag, before your script. How to solve it by returning to a past method, I will quote page 402 of Programming Perl, 3rd ed. again.
Information processing model beginning with this software +-----------------------------------+ | Octet Strings | aka Binary strings +-----------------------------------+ | Character Strings | aka Text strings +-----------------------------------+ | ASCII Compatible Encoding | ex. Latin-4 +-----------------------------------+ (No UTF8 Flag) You need not memorize this figure.
Ideally, I'd like to achieve these five Goals:
Goal #1:
Old byte-oriented programs should not spontaneously break on the old byte-oriented data they used to work on.
It has already been achieved by Latin-4 designed for combining with old byte-oriented ASCII.
Goal #2:
Old byte-oriented programs should magically start working on the new character-oriented data when appropriate.
Still now, 1 octet is counted with 1 by embedded functions length, substr, index, rindex and pos that handle length and position of string. In this part, there is no change. The length of 1 character of 2 octet code is 2.
On the other hand, the regular expression in the script is added the multibyte anchoring processing with this software, instead of you.
figure of Goal #1 and Goal #2.
GOAL#1 GOAL#2 (a) (b) (c) (d) (e) +--------------+-------+-------+-------+-------+-------+ | data | Old | Old | New | Old | New | +--------------+-------+-------+-------+-------+-------+ | script | Old | Old | New | +--------------+-------+---------------+---------------+ | interpreter | Old | New | +--------------+-------+-------------------------------+ Old --- Old byte-oriented New --- New character-oriented
There is a combination from (a) to (e) in data, script and interpreter of old and new. Let's add the Encode module and this software did not exist at time of be written this document and JPerl did exist.
(a) (b) (c) (d) (e) JPerl Encode,Char::Latin4 +--------------+-------+-------+-------+-------+-------+ | data | Old | Old | New | Old | New | +--------------+-------+-------+-------+-------+-------+ | script | Old | Old | New | +--------------+-------+---------------+---------------+ | interpreter | Old | New | +--------------+-------+-------------------------------+ Old --- Old byte-oriented New --- New character-oriented
The reason why JPerl is very excellent is that it is at the position of (c). That is, it is not necessary to do a special description to the script to process new character-oriented string.
Contrasting is Encode module and describing "use Char::Latin4;" on this software, in this case, a new description is necessary.
Goal #3:
Programs should run just as fast in the new character-oriented mode as in the old byte-oriented mode.
It is impossible. Because the following time is necessary.
(1) Time of escape script for old byte-oriented perl.
Goal #4:
Perl should remain one language, rather than forking into a byte-oriented Perl and a character-oriented Perl.
JPerl forked the perl interpreter so as not to fork the Perl language. But the Perl core team might not hope for the perl interpreter's fork. As a result, the Perl language forked, and the community was reduced through necessity.
A character-oriented perl is not necessary to make it specially, because a byte-oriented perl can already treat the binary data. This software is only an application program of Perl, a filter program. If perl can be executed, this software will be able to be executed.
And you will get support from the Perl community, when you solve the problem by the Perl script.
Goal #5:
JPerl users will be able to maintain JPerl by Perl.
May the JPerl be with you, always.
Back when Programming Perl, 3rd ed. was written, UTF8 flag was not born and Perl is designed to make the easy jobs easy. This software provide programming environment like at that time.
Programming Perl, Second Edition By Larry Wall, Tom Christiansen, Randal L. Schwartz January 1900 (really so?) Pages: 670 ISBN 10: 1-56592-149-6 | ISBN 13: 9781565921498 http://shop.oreilly.com/product/9781565921498.do Programming Perl, Third Edition By Larry Wall, Tom Christiansen, Jon Orwant Third Edition July 2000 Pages: 1104 ISBN 10: 0-596-00027-8 | ISBN 13: 9780596000271 http://shop.oreilly.com/product/9780596000271.do Perl Cookbook, Second Edition By Tom Christiansen, Nathan Torkington Second Edition August 2003 Pages: 964 ISBN 10: 0-596-00313-7 | ISBN 13: 9780596003135 http://shop.oreilly.com/product/9780596003135.do Perl in a Nutshell, Second Edition By Stephen Spainhour, Ellen Siever, Nathan Patwardhan Second Edition June 2002 Pages: 760 Series: In a Nutshell ISBN 10: 0-596-00241-6 | ISBN 13: 9780596002411 http://shop.oreilly.com/product/9780596002411.do Learning Perl on Win32 Systems By Randal L. Schwartz, Erik Olson, Tom Christiansen August 1997 Pages: 306 ISBN 10: 1-56592-324-3 | ISBN 13: 9781565923249 http://shop.oreilly.com/product/9781565923249.do Learning Perl, Fifth Edition By Randal L. Schwartz, Tom Phoenix, brian d foy June 2008 Pages: 352 Print ISBN:978-0-596-52010-6 | ISBN 10: 0-596-52010-7 Ebook ISBN:978-0-596-10316-3 | ISBN 10: 0-596-10316-6 http://shop.oreilly.com/product/9780596520113.do Perl RESOURCE KIT UNIX EDITION Futato, Irving, Jepson, Patwardhan, Siever ISBN 10: 1-56592-370-7 http://shop.oreilly.com/product/9781565923706.do Understanding Japanese Information Processing By Ken Lunde January 1900 Pages: 470 ISBN 10: 1-56592-043-0 | ISBN 13: 9781565920439 http://shop.oreilly.com/product/9781565920439.do CJKV Information Processing Chinese, Japanese, Korean & Vietnamese Computing By Ken Lunde First Edition January 1999 Pages: 1128 ISBN 10: 1-56592-224-7 | ISBN 13: 9781565922242 http://shop.oreilly.com/product/9781565922242.do Mastering Regular Expressions, Second Edition By Jeffrey E. F. Friedl Second Edition July 2002 Pages: 484 ISBN 10: 0-596-00289-0 | ISBN 13: 9780596002893 http://shop.oreilly.com/product/9780596002893.do Mastering Regular Expressions, Third Edition By Jeffrey E. F. Friedl Third Edition August 2006 Pages: 542 ISBN 10: 0-596-52812-4 | ISBN 13:9780596528126 http://shop.oreilly.com/product/9780596528126.do Regular Expressions Cookbook By Jan Goyvaerts, Steven Levithan May 2009 Pages: 512 ISBN 10:0-596-52068-9 | ISBN 13: 978-0-596-52068-7 http://shop.oreilly.com/product/9780596520694.do PERL PUROGURAMINGU Larry Wall, Randal L.Schwartz, Yoshiyuki Kondo December 1997 ISBN 4-89052-384-7 http://www.context.co.jp/~cond/books/old-books.html JIS KANJI JITEN Kouji Shibano Pages: 1456 ISBN 4-542-20129-5 http://www.webstore.jsa.or.jp/lib/lib.asp?fn=/manual/mnl01_12.htm UNIX MAGAZINE 1993 Aug Pages: 172 T1008901080816 ZASSHI 08901-8 http://ascii.asciimw.jp/books/books/detail/978-4-7561-5008-0.shtml MacPerl Power and Ease By Vicki Brown, Chris Nandor April 1998 Pages: 350 ISBN 10: 1881957322 | ISBN 13: 978-1881957324 http://www.amazon.com/Macperl-Power-Ease-Vicki-Brown/dp/1881957322 Other Tools http://search.cpan.org/dist/jacode/ http://search.cpan.org/dist/Char/ BackPAN http://backpan.perl.org/authors/id/I/IN/INA/
This software was made referring to software and the document that the following hackers or persons had made. I am thankful to all persons.
Rick Yamashita, Shift_JIS ttp://furukawablog.spaces.live.com/Blog/cns!1pmWgsL289nm7Shn7cS0jHzA!2225.entry (dead link) ttp://shino.tumblr.com/post/116166805/1981-us-jis (add 'h' at head) http://www.wdic.org/w/WDIC/%E3%82%B7%E3%83%95%E3%83%88JIS Larry Wall, Perl http://www.perl.org/ Kazumasa Utashiro, jcode.pl ftp://ftp.iij.ad.jp/pub/IIJ/dist/utashiro/perl/ http://log.utashiro.com/pub/2006/07/jkondo_a580.html Jeffrey E. F. Friedl, Mastering Regular Expressions http://regex.info/ SADAHIRO Tomoyuki, The right way of using Shift_JIS http://homepage1.nifty.com/nomenclator/perl/shiftjis.htm Yukihiro "Matz" Matsumoto, YAPC::Asia2006 Ruby on Perl(s) http://www.rubyist.net/~matz/slides/yapc2006/ jscripter, For jperl users http://homepage1.nifty.com/kazuf/jperl.html Bruce., Unicode in Perl http://www.rakunet.org/tsnet/TSabc/18/546.html Hiroaki Izumi, Perl5.8/Perl5.10 is not useful on the Windows. http://www.aritia.jp/hizumi/perl/perlwin.html TSUKAMOTO Makio, Perl memo/file path of Windows http://digit.que.ne.jp/work/wiki.cgi?Perl%E3%83%A1%E3%83%A2%2FWindows%E3%81%A7%E3%81%AE%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%83%91%E3%82%B9 chaichanPaPa, Matching Shift_JIS file name http://d.hatena.ne.jp/chaichanPaPa/20080802/1217660826 SUZUKI Norio, Jperl http://homepage2.nifty.com/kipp/perl/jperl/ WATANABE Hirofumi, Jperl http://www.cpan.org/src/5.0/jperl/ http://search.cpan.org/~watanabe/ ftp://ftp.oreilly.co.jp/pcjp98/watanabe/jperlconf.ppt Chuck Houpt, Michiko Nozu, MacJPerl http://habilis.net/macjperl/index.j.html Kenichi Ishigaki, Pod-PerldocJp, Welcome to modern Perl world http://search.cpan.org/dist/Pod-PerldocJp/ http://gihyo.jp/dev/serial/01/modern-perl/0031 http://gihyo.jp/dev/serial/01/modern-perl/0032 http://gihyo.jp/dev/serial/01/modern-perl/0033 Dan Kogai, Encode module http://search.cpan.org/dist/Encode/ http://www.archive.org/details/YAPCAsia2006TokyoPerl58andUnicodeMythsFactsandChanges (video) http://yapc.g.hatena.ne.jp/jkondo/ (audio) Juerd, Perl Unicode Advice http://juerd.nl/site.plp/perluniadvice daily dayflower, 2008-06-25 perluniadvice http://d.hatena.ne.jp/dayflower/20080625/1214374293 Jesse Vincent, Compatibility is a virtue http://www.nntp.perl.org/group/perl.perl5.porters/2010/05/msg159825.html Tokyo-pm archive http://mail.pm.org/pipermail/tokyo-pm/ http://mail.pm.org/pipermail/tokyo-pm/1999-September/001844.html http://mail.pm.org/pipermail/tokyo-pm/1999-September/001854.html ruby-list http://blade.nagaokaut.ac.jp/ruby/ruby-list/index.shtml http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/2440 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/2446 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/2569 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/9427 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/9431 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/10500 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/10501 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/10502 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/12385 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/12392 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/12393 http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/19156
To install Char::Latin4, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Char::Latin4
CPAN shell
perl -MCPAN -e shell install Char::Latin4
For more information on module installation, please visit the detailed CPAN module installation guide.