3 Encode::Supported -- Encodings supported by Encode
9 Encoding names are case insensitive. White space in names
10 is ignored. In addition, an encoding may have aliases.
11 Each encoding has one "canonical" name. The "canonical"
12 name is chosen from the names of the encoding by picking
13 the first in the following sequence (with a few exceptions).
19 The name used by the Perl community. That includes 'utf8' and 'ascii'.
20 Unlike aliases, canonical names directly reach the method so such
21 frequently used words like 'utf8' don't need to do alias lookups.
25 The MIME name as defined in IETF RFCs. This includes all "iso-"s.
29 The name in the IANA registry.
33 The name used by the organization that defined it.
37 In case I<de jure> canonical names differ from that of the Encode
38 module, they are always aliased if it ever be implemented. So you can
39 safely tell if a given encoding is implemented or not just by passing
42 Because of all the alias issues, and because in the general case
43 encodings have state, "Encode" uses an encoding object internally
44 once an operation is in progress.
46 =head1 Supported Encodings
48 As of Perl 5.8.0, at least the following encodings are recognized.
49 Note that unless otherwise specified, they are all case insensitive
50 (via alias) and all occurrence of spaces are replaced with '-'.
51 In other words, "ISO 8859 1" and "iso-8859-1" are identical.
53 Encodings are categorized and implemented in several different modules
54 but you don't have to C<use Encode::XX> to make them available for
55 most cases. Encode.pm will automatically load those modules on demand.
57 =head2 Built-in Encodings
59 The following encodings are always available.
61 Canonical Aliases Comments & References
62 ----------------------------------------------------------------
63 ascii US-ascii ISO-646-US [ECMA]
64 ascii-ctrl Special Encoding
65 iso-8859-1 latin1 [ISO]
68 ----------------------------------------------------------------
70 I<null> and I<ascii-ctrl> are special. "null" fails for all character
71 so when you set fallback mode to PERLQQ, HTMLCREF or XMLCREF, ALL
72 CHARACTERS will fall back to character references. Ditto for
73 "ascii-ctrl" except for control characters. For fallback modes, see
76 =head2 Encode::Unicode -- other Unicode encodings
78 Unicode coding schemes other than native utf8 are supported by
79 Encode::Unicode, which will be autoloaded on demand.
81 ----------------------------------------------------------------
82 UCS-2BE UCS-2, iso-10646-1 [IANA, UC]
91 ----------------------------------------------------------------
93 To find how (UCS-2|UTF-(16|32))(LE|BE)? differ from one another,
94 see L<Encode::Unicode>.
96 UTF-7 is a special encoding which "re-encodes" UTF-16BE into a 7-bit
97 encoding. It is implemented seperately by Encode::Unicode::UTF7.
99 =head2 Encode::Byte -- Extended ASCII
101 Encode::Byte implements most single-byte encodings except for
102 Symbols and EBCDIC. The following encodings are based on single-byte
103 encodings implemented as extended ASCII. Most of them map
104 \x80-\xff (upper half) to non-ASCII characters.
108 =item ISO-8859 and corresponding vendor mappings
110 Since there are so many, they are presented in table format with
111 languages and corresponding encoding names by vendors. Note that
112 the table is sorted in order of ISO-8859 and the corresponding vendor
113 mappings are slightly different from that of ISO. See
114 L<http://czyborra.com/charsets/iso8859.html> for details.
116 Lang/Regions ISO/Other Std. DOS Windows Macintosh Others
117 ----------------------------------------------------------------
118 N. America (ASCII) cp437 AdobeStandardEncoding
120 W. Europe iso-8859-1 cp850 cp1252 MacRoman nextstep
122 cp860 (DOSPortuguese)
123 Cntrl. Europe iso-8859-2 cp852 cp1250 MacCentralEurRoman
129 Cyrillics iso-8859-5 cp855 cp1251 MacCyrillic
130 (See also next section) cp866 MacUkrainian
131 Arabic iso-8859-6 cp864 cp1256 MacArabic
133 Greek iso-8859-7 cp737 cp1253 MacGreek
135 Hebrew iso-8859-8 cp862 cp1255 MacHebrew
136 Turkish iso-8859-9 cp857 cp1254 MacTurkish
137 Nordics iso-8859-10 cp865
140 Thai iso-8859-11[3] cp874 MacThai
141 (iso-8859-12 is nonexistent. Reserved for Indics?)
142 Baltics iso-8859-13 cp775 cp1257
144 Latin9 [4] iso-8859-15
146 Vietnamese viscii cp1258 MacVietnamese
147 ----------------------------------------------------------------
149 [1] Esperanto, Maltese, and Turkish. Turkish is now on 8859-9.
150 [2] Baltics. Now on 8859-10, except for Latvian.
151 [3] TIS 620 + Non-Breaking Space (0xA0 / U+00A0)
152 [4] Nicknamed Latin0; the Euro sign as well as French and Finnish
153 letters that are missing from 8859-1 were added.
155 All cp* are also available as ibm-*, ms-*, and windows-* . See also
156 L<http://czyborra.com/charsets/codepages.html>.
158 Macintosh encodings don't seem to be registered in such entities as
159 IANA. "Canonical" names in Encode are based upon Apple's Tech Note
160 1150. See L<http://developer.apple.com/technotes/tn/tn1150.html>
163 =item KOI8 - De Facto Standard for the Cyrillic world
165 Though ISO-8859 does have ISO-8859-5, the KOI8 series is far more
166 popular in the Net. L<Encode> comes with the following KOI charsets.
167 For gory details, see L<http://czyborra.com/charsets/cyrillic.html>
169 ----------------------------------------------------------------
171 koi8-r cp878 [RFC1489]
173 ----------------------------------------------------------------
175 =item gsm0338 - Hentai Latin 1
177 GSM0338 is for GSM handsets. Though it shares alphanumerals with
178 ASCII, control character ranges and other parts are mapped very
179 differently, mainly to store Greek characters. There are also escape
180 sequences (starting with 0x1B) to cover e.g. the Euro sign. Some
181 special cases like a trailing 0x00 byte or a lone 0x1B byte are not
182 well-defined and decode() will return an empty string for them.
183 One possible workaround is
185 $gsm =~ s/\x00\z/\x00\x00/;
186 $uni = decode("gsm0338", $gsm);
187 $uni .= "\xA0" if $gsm =~ /\x1B\z/;
189 Note that the Encode implementation of GSM0338 does not implement the
190 reuse of Latin capital letters as Greek capital letters (for example,
191 the 0x5A is U+005A (LATIN CAPITAL LETTER Z), not U+0396 (GREEK CAPITAL
194 The GSM0338 is also covered in Encode::Byte even though it is not
195 an "extended ASCII" encoding.
199 =head2 CJK: Chinese, Japanese, Korean (Multibyte)
201 Note that Vietnamese is listed above. Also read "Encoding vs Charset"
202 below. Also note that these are implemented in distinct modules by
203 countries, due to the size concerns (simplified Chinese is mapped
204 to 'CN', continental China, while traditional Chinese is mapped to
205 'TW', Taiwan). Please refer to their respective documentation pages.
209 =item Encode::CN -- Continental China
211 Standard DOS/Win Macintosh Comment/Reference
212 ----------------------------------------------------------------
213 euc-cn [1] MacChineseSimp
215 gb12345-raw { GB12345 without CES }
216 gb2312-raw { GB2312 without CES }
219 ----------------------------------------------------------------
221 [1] GB2312 is aliased to this. See L<Microsoft-related naming mess>
222 [2] gbk is aliased to this. See L<Microsoft-related naming mess>
224 =item Encode::JP -- Japan
226 Standard DOS/Win Macintosh Comment/Reference
227 ----------------------------------------------------------------
229 shiftjis cp932 macJapanese
231 iso-2022-jp [RFC1468]
232 iso-2022-jp-1 [RFC2237]
233 jis0201-raw { JIS X 0201 (roman + halfwidth kana) without CES }
234 jis0208-raw { JIS X 0208 (Kanji + fullwidth kana) without CES }
235 jis0212-raw { JIS X 0212 (Extended Kanji) without CES }
236 ----------------------------------------------------------------
238 =item Encode::KR -- Korea
240 Standard DOS/Win Macintosh Comment/Reference
241 ----------------------------------------------------------------
242 euc-kr MacKorean [RFC1557]
244 iso-2022-kr [RFC1557]
245 johab [KS X 1001:1998, Annex 3]
246 ksc5601-raw { KSC5601 without CES }
247 ----------------------------------------------------------------
249 [1] ks_c_5601-1987, (x-)?windows-949, and uhc are aliased to this.
252 =item Encode::TW -- Taiwan
254 Standard DOS/Win Macintosh Comment/Reference
255 ----------------------------------------------------------------
256 big5-eten cp950 MacChineseTrad {big5 aliased to big5-eten}
258 ----------------------------------------------------------------
260 =item Encode::HanExtra -- More Chinese via CPAN
262 Due to the size concerns, additional Chinese encodings below are
263 distributed separately on CPAN, under the name Encode::HanExtra.
265 Standard DOS/Win Macintosh Comment/Reference
266 ----------------------------------------------------------------
267 big5ext CMEX's Big5e Extension
268 big5plus CMEX's Big5+ Extension
269 cccii Chinese Character Code for Information Interchange
270 euc-tw EUC (Extended Unix Character)
271 gb18030 GBK with Traditional Characters
272 ----------------------------------------------------------------
274 =item Encode::JIS2K -- JIS X 0213 encodings via CPAN
276 Due to size concerns, additional Japanese encodings below are
277 distributed separately on CPAN, under the name Encode::JIS2K.
279 Standard DOS/Win Macintosh Comment/Reference
280 ----------------------------------------------------------------
286 ----------------------------------------------------------------
290 =head2 Miscellaneous encodings
296 See L<perlebcdic> for details.
298 ----------------------------------------------------------------
305 ----------------------------------------------------------------
307 =item Encode::Symbols
309 For symbols and dingbats.
311 ----------------------------------------------------------------
317 ----------------------------------------------------------------
319 =item Encode::MIME::Header
321 Strictly speaking, MIME header encoding documented in RFC 2047 is more
322 of encapsulation than encoding. However, their support in modern
323 world is imperative so they are supported.
325 ----------------------------------------------------------------
326 MIME-Header [RFC2047]
329 ----------------------------------------------------------------
333 This one is not a name of encoding but a utility that lets you pick up
334 the most appropriate encoding for a data out of given I<suspects>. See
335 L<Encode::Guess> for details.
339 =head1 Unsupported encodings
341 The following encodings are not supported as yet; some because they
342 are rarely used, some because of technical difficulties. They may
343 be supported by external modules via CPAN in the future, however.
347 =item ISO-2022-JP-2 [RFC1554]
349 Not very popular yet. Needs Unicode Database or equivalent to
350 implement encode() (because it includes JIS X 0208/0212, KSC5601, and
351 GB2312 simultaneously, whose code points in Unicode overlap. So you
352 need to lookup the database to determine to what character set a given
353 Unicode character should belong).
355 =item ISO-2022-CN [RFC1922]
357 Not very popular. Needs CNS 11643-1 and -2 which are not available in
358 this module. CNS 11643 is supported (via euc-tw) in Encode::HanExtra.
359 Autrijus Tang may add support for this encoding in his module in future.
361 =item Various HP-UX encodings
363 The following are unsupported due to the lack of mapping data.
365 '8' - arabic8, greek8, hebrew8, kana8, thai8, and turkish8
366 '15' - japanese15, korean15, and roi15
368 =item Cyrillic encoding ISO-IR-111
370 Anton Tagunov doubts its usefulness.
372 =item ISO-8859-8-1 [Hebrew]
374 None of the Encode team knows Hebrew enough (ISO-8859-8, cp1255 and
375 MacHebrew are supported because and just because there were mappings
376 available at L<http://www.unicode.org/>). Contributions welcome.
378 =item ISIRI 3342, Iran System, ISIRI 2900 [Farsi]
382 =item Thai encoding TCVN
386 =item Vietnamese encodings VPS
388 Though Jungshik Shin has reported that Mozilla supports this encoding,
389 it was too late before 5.8.0 for us to add it. In the future, it
390 may be available via a separate module. See
391 L<http://lxr.mozilla.org/seamonkey/source/intl/uconv/ucvlatin/vps.uf>
393 L<http://lxr.mozilla.org/seamonkey/source/intl/uconv/ucvlatin/vps.ut>
394 if you are interested in helping us.
396 =item Various Mac encodings
398 The following are unsupported due to the lack of mapping data.
400 MacArmenian, MacBengali, MacBurmese, MacEthiopic
401 MacExtArabic, MacGeorgian, MacKannada, MacKhmer
402 MacLaotian, MacMalayalam, MacMongolian, MacOriya
403 MacSinhalese, MacTamil, MacTelugu, MacTibetan
406 The rest which are already available are based upon the vendor mappings
407 at L<http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/> .
409 =item (Mac) Indic encodings
411 The maps for the following are available at L<http://www.unicode.org/>
412 but remain unsupport because those encodings need algorithmical
413 approach, currently unsupported by F<enc2xs>:
419 For details, please see C<Unicode mapping issues and notes:> at
420 L<http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/DEVANAGA.TXT> .
422 I believe this issue is prevalent not only for Mac Indics but also in
423 other Indic encodings, but the above were the only Indic encodings
424 maps that I could find at L<http://www.unicode.org/> .
428 =head1 Encoding vs. Charset -- terminology
430 We are used to using the term (character) I<encoding> and I<character
431 set> interchangeably. But just as confusing the terms byte and
432 character is dangerous and the terms should be differentiated when
433 needed, we need to differentiate I<encoding> and I<character set>.
435 To understand that, here is a description of how we make computers
442 First we start with which characters to include. We call this
443 collection of characters I<character repertoire>.
447 Then we have to give each character a unique ID so your computer can
448 tell the difference between 'a' and 'A'. This itemized character
449 repertoire is now a I<character set>.
453 If your computer can grow the character set without further
454 processing, you can go ahead and use it. This is called a I<coded
455 character set> (CCS) or I<raw character encoding>. ASCII is used this
460 But in many cases, especially multi-byte CJK encodings, you have to
461 tweak a little more. Your network connection may not accept any data
462 with the Most Significant Bit set, and your computer may not be able to
463 tell if a given byte is a whole character or just half of it. So you
464 have to I<encode> the character set to use it.
466 A I<character encoding scheme> (CES) determines how to encode a given
467 character set, or a set of multiple character sets. 7bit ISO-2022 is
468 an example of a CES. You switch between character sets via I<escape
473 Technically, or mathematically, speaking, a character set encoded in
474 such a CES that maps character by character may form a CCS. EUC is such
475 an example. The CES of EUC is as follows:
485 Map such a character set that consists of 94 or 96 powered by N
486 members by adding 0x80 to each byte.
490 You can also use 0x8e and 0x8f to indicate that the following sequence of
491 characters belongs to yet another character set. To each following byte
492 is added the value 0x80.
496 By carefully looking at the encoded byte sequence, you can find that the
497 byte sequence conforms a unique number. In that sense, EUC is a CCS
498 generated by a CES above from up to four CCS (complicated?). UTF-8
499 falls into this category. See L<perlUnicode/"UTF-8"> to find out how
500 UTF-8 maps Unicode to a byte sequence.
502 You may also have found out by now why 7bit ISO-2022 cannot comprise
503 a CCS. If you look at a byte sequence \x21\x21, you can't tell if
504 it is two !'s or IDEOGRAPHIC SPACE. EUC maps the latter to \xA1\xA1
505 so you have no trouble differentiating between "!!". and S<" ">.
507 =head1 Encoding Classification (by Anton Tagunov and Dan Kogai)
509 This section tries to classify the supported encodings by their
510 applicability for information exchange over the Internet and to
511 choose the most suitable aliases to name them in the context of
518 To (en|de)code encodings marked by C<(**)>, you need
519 C<Encode::HanExtra>, available from CPAN.
525 US-ASCII UTF-8 ISO-8859-* KOI8-R
526 Shift_JIS EUC-JP ISO-2022-JP ISO-2022-JP-1
529 are registered with IANA as preferred MIME names and may
530 be used over the Internet.
532 C<Shift_JIS> has been officialized by JIS X 0208:1997.
533 L<Microsoft-related naming mess> gives details.
535 C<GB2312> is the IANA name for C<EUC-CN>.
536 See L<Microsoft-related naming mess> for details.
538 C<GB_2312-80> I<raw> encoding is available as C<gb2312-raw>
539 with Encode. See L<Encode::CN> for details.
544 have not been registered with IANA (as of March 2002) but
545 seem to be supported by major web browsers.
546 The IANA name for C<EUC-CN> is C<GB2312>.
551 See L<Microsoft-related naming mess> for details.
553 C<KS_C_5601-1987> I<raw> encoding is available as C<kcs5601-raw>
554 with Encode. See L<Encode::KR> for details.
556 UTF-16 UTF-16BE UTF-16LE
558 are IANA-registered C<charset>s. See [RFC 2781] for details.
559 Jungshik Shin reports that UTF-16 with a BOM is well accepted
560 by MS IE 5/6 and NS 4/6. Beware however that
566 C<UTF-16> support in any software you're going to be
567 using/interoperating with has probably been less tested
568 then C<UTF-8> support
572 C<UTF-8> coded data seamlessly passes traditional
573 command piping (C<cat>, C<more>, etc.) while C<UTF-16> coded
574 data is likely to cause confusion (with its zero bytes,
579 it is beyond the power of words to describe the way HTML browsers
580 encode non-C<ASCII> form data. To get a general impression, visit
581 L<http://ppewww.ph.gla.ac.uk/~flavell/charset/form-i18n.html>.
582 While encoding of form data has stabilized for C<UTF-8> encoded pages
583 (at least IE 5/6, NS 6, and Opera 6 behave consistently), be sure to
584 expect fun (and cross-browser discrepancies) with C<UTF-16> encoded
589 The rule of thumb is to use C<UTF-8> unless you know what
590 you're doing and unless you really benefit from using C<UTF-16>.
595 GB 18030 (**) (see links bellow)
598 are totally valid encodings but not registered at IANA.
599 The names under which they are listed here are probably the
600 most widely-known names for these encodings and are recommended
605 is a proprietary name.
607 =head2 Microsoft-related naming mess
609 Microsoft products misuse the following names:
615 Microsoft extension to C<EUC-KR>.
617 Proper names: C<CP949>, C<UHC>, C<x-windows-949> (as used by Mozilla).
619 See L<http://lists.w3.org/Archives/Public/ietf-charsets/2001AprJun/0033.html>
622 Encode aliases C<KS_C_5601-1987> to C<cp949> to reflect this common
623 misusage. I<Raw> C<KS_C_5601-1987> encoding is available as
626 See L<Encode::KR> for details.
630 Microsoft extension to C<EUC-CN>.
632 Proper names: C<CP936>, C<GBK>.
634 C<GB2312> has been registered in the C<EUC-CN> meaning at
635 IANA. This has partially repaired the situation: Microsoft's
636 C<GB2312> has become a superset of the official C<GB2312>.
638 Encode aliases C<GB2312> to C<euc-cn> in full agreement with
639 IANA registration. C<cp936> is supported separately.
640 I<Raw> C<GB_2312-80> encoding is available as C<gb2312-raw>.
642 See L<Encode::CN> for details.
646 Microsoft extension to C<Big5>.
648 Proper name: C<CP950>.
650 Encode separately supports C<Big5> and C<cp950>.
654 Microsoft's understanding of C<Shift_JIS>.
656 JIS has not endorsed the full Microsoft standard however.
657 The official C<Shift_JIS> includes only JIS X 0201 and JIS X 0208
658 character sets, while Microsoft has always used C<Shift_JIS>
659 to encode a wider character repertoire. See C<IANA> registration for
662 As a historical predecessor, Microsoft's variant
663 probably has more rights for the name, though it may be objected
664 that Microsoft shouldn't have used JIS as part of the name
667 Unambiguous name: C<CP932>. C<IANA> name (also used by Mozilla, and
668 provided as an alias by Encode): C<Windows-31J>.
670 Encode separately supports C<Shift_JIS> and C<cp932>.
678 =item character repertoire
680 A collection of unique characters. A I<character> set in the strictest
681 sense. At this stage, characters are not numbered.
683 =item coded character set (CCS)
685 A character set that is mapped in a way computers can use directly.
686 Many character encodings, including EUC, fall in this category.
688 =item character encoding scheme (CES)
690 An algorithm to map a character set to a byte sequence. You don't
691 have to be able to tell which character set a given byte sequence
692 belongs. 7-bit ISO-2022 is a CES but it cannot be a CCS. EUC is an
693 example of being both a CCS and CES.
695 =item charset (in MIME context)
697 has long been used in the meaning of C<encoding>, CES.
699 While the word combination C<character set> has lost this meaning
700 in MIME context since [RFC 2130], the C<charset> abbreviation has
701 retained it. This is how [RFC 2277] and [RFC 2278] bless C<charset>:
703 This document uses the term "charset" to mean a set of rules for
704 mapping from a sequence of octets to a sequence of characters, such
705 as the combination of a coded character set and a character encoding
706 scheme; this is also what is used as an identifier in MIME "charset="
707 parameters, and registered in the IANA charset registry ... (Note
708 that this is NOT a term used by other standards bodies, such as ISO).
713 Extended Unix Character. See ISO-2022.
717 A CES that was carefully designed to coexist with ASCII. There are a 7
718 bit version and an 8 bit version.
720 The 7 bit version switches character set via escape sequence so it
721 cannot form a CCS. Since this is more difficult to handle in programs
722 than the 8 bit version, the 7 bit version is not very popular except for
723 iso-2022-jp, the I<de facto> standard CES for e-mails.
725 The 8 bit version can form a CCS. EUC and ISO-8859 are two examples
726 thereof. Pre-5.6 perl could use them as string literals.
730 Short for I<Universal Character Set>. When you say just UCS, it means
735 ISO/IEC 10646 encoding form: Universal Character Set coded in two
740 A character set that aims to include all character repertoires of the
741 world. Many character sets in various national as well as industrial
742 standards have become, in a way, just subsets of Unicode.
746 Short for I<Unicode Transformation Format>. Determines how to map a
747 Unicode character into a byte sequence.
751 A UTF in 16-bit encoding. Can either be in big endian or little
752 endian. The big endian version is called UTF-16BE (equal to UCS-2 +
753 surrogate support) and the little endian version is called UTF-16LE.
761 L<Encode::CN>, L<Encode::JP>, L<Encode::KR>, L<Encode::TW>,
762 L<Encode::EBCDIC>, L<Encode::Symbol>
763 L<Encode::MIME::Header>, L<Encode::Guess>
771 European Computer Manufacturers Association
772 L<http://www.ecma.ch>
776 =item ECMA-035 (eq C<ISO-2022>)
778 L<http://www.ecma.ch/ecma1/STAND/ECMA-035.HTM>
780 The specification of ISO-2022 is available from the link above.
786 Internet Assigned Numbers Authority
787 L<http://www.iana.org/>
791 =item Assigned Charset Names by IANA
793 L<http://www.iana.org/assignments/character-sets>
795 Most of the C<canonical names> in Encode derive from this list
796 so you can directly apply the string you have extracted from MIME
797 header of mails and web pages.
803 International Organization for Standardization
804 L<http://www.iso.ch/>
808 Request For Comments -- need I say more?
809 L<http://www.rfc-editor.org/>, L<http://www.rfc.net/>,
810 L<http://www.faqs.org/rfcs/>
815 L<http://www.unicode.org/>
819 =item Unicode Glossary
821 L<http://www.unicode.org/glossary/>
823 The glossary of this document is based upon this site.
829 =head2 Other Notable Sites
835 L<http://czyborra.com/>
837 Contains a a lot of useful information, especially gory details of ISO
842 L<http://www.oreilly.com/people/authors/lunde/cjk_inf.html>
844 Somewhat obsolete (last update in 1996), but still useful. Also try
846 L<ftp://ftp.oreilly.com/pub/examples/nutshell/cjkv/pdf/GB18030_Summary.pdf>
848 You will find brief info on C<EUC-CN>, C<GBK> and mostly on C<GB 18030>.
850 =item Jungshik Shin's Hangul FAQ
852 L<http://jshin.net/faq>
854 And especially its subject 8.
856 L<http://jshin.net/faq/qa8.html>
858 A comprehensive overview of the Korean (C<KS *>) standards.
860 =item debian.org: "Introduction to i18n"
862 A brief description for most of the mentioned CJK encodings is
864 L<http://www.debian.org/doc/manuals/intro-i18n/ch-codes.en.html>
868 =head2 Offline sources
872 =item C<CJKV Information Processing> by Ken Lunde
874 CJKV Information Processing
875 1999 O'Reilly & Associates, ISBN : 1-56592-224-7
877 The modern successor of C<CJK.inf>.
879 Features a comprehensive coverage of CJKV character sets and
880 encodings along with many other issues faced by anyone trying
881 to better support CJKV languages/scripts in all the areas of
882 information processing.
884 To purchase this book, visit
885 L<http://www.oreilly.com/catalog/cjkvinfo/>
886 or your favourite bookstore.