1 # Copyright (c) 1987, Fujitsu LTD. (Itaru ICHIKAWA).
2 # Copyright (c) 1996-2010, The nkf Project.
5 # This software is provided 'as-is', without any express or implied
6 # warranty. In no event will the authors be held liable for any damages
7 # arising from the use of this software.
9 # Permission is granted to anyone to use this software for any purpose,
10 # including commercial applications, and to alter it and redistribute it
11 # freely, subject to the following restrictions:
13 # 1. The origin of this software must not be misrepresented; you must not
14 # claim that you wrote the original software. If you use this software
15 # in a product, an acknowledgment in the product documentation would be
16 # appreciated but is not required.
18 # 2. Altered source versions must be plainly marked as such, and must not be
19 # misrepresented as being the original software.
21 # 3. This notice may not be removed or altered from any source distribution.
26 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK);
31 @ISA = qw(Exporter DynaLoader);
32 # Items to export into callers namespace by default. Note: do not export
33 # names by default without a very good reason. Use EXPORT_OK instead.
34 # Do not simply export all your public functions/methods/constants.
36 nkf nkf_continue inputcode
40 bootstrap NKF $VERSION;
42 # Preloaded methods go here.
44 # Autoload methods go after =cut, and are processed by the autosplit program.
55 nkf - Network Kanji Filter
61 nkf B<[-butjnesliohrTVvwWJESZxXFfmMBOcdILg]> B<[>I<file ...>B<]>
67 B<Nkf> is a yet another kanji code converter among networks, hosts and terminals.
68 It converts input kanji code to designated kanji code
69 such as ISO-2022-JP, Shift_JIS, EUC-JP, UTF-8, UTF-16 or UTF-32.
71 One of the most unique faculty of B<nkf> is the guess of the input kanji encodings.
72 It currently recognizes ISO-2022-JP, Shift_JIS, EUC-JP, UTF-8, UTF-16 and UTF-32.
73 So users needn't set the input kanji code explicitly.
75 By default, X0201 kana is converted into X0208 kana.
76 For X0201 kana, SO/SI, SSO and ESC-(-I methods are supported.
77 For automatic code detection, nkf assumes no X0201 kana in Shift_JIS.
78 To accept X0201 in Shift_JIS, use B<-X>, B<-x> or B<-S>.
84 =item B<-J -S -E -W -W16 -W32 -j -s -e -w -w16 -w32>
86 Specify input and output encodings. Upper case is input.
93 ISO-2022-JP (JIS code).
97 Shift_JIS and JIS X 0201 kana.
98 EUC-JP is recognized as X0201 kana. Without B<-x> flag,
99 JIS X 0201 Katakana (a.k.a.halfwidth kana) is converted into JIS X 0208.
100 If you use Windows, see Windows-31J (CP932).
113 B or L gives whether Big Endian or Little Endian.
114 0 gives whther put BOM or not.
119 B or L gives whether Big Endian or Little Endian.
120 0 gives whther put BOM or not.
126 Output is buffered (DEFAULT), Output is unbuffered.
134 Specify the escape sequence for JIS X 0208.
140 Use ESC ( @. (JIS X 0208-1978)
144 Use ESC ( B. (JIS X 0208-1983/1990 DEFAULT)
150 Specify the escape sequence for US-ASCII/JIS X 0201 Roman. (DEFAULT B)
154 {de/en}crypt ROT13/47
156 =item B<-h[123] --hiragana --katakana --katakana-hiragana>
160 =item B<-h1 --hiragana>
162 Katakana to Hiragana conversion.
164 =item B<-h2 --katakana>
166 Hiragana to Katakana conversion.
168 =item B<-h3 --katakana-hiragana>
170 Katakana to Hiragana and Hiragana to Katakana conversion.
176 Text mode output (MS-DOS)
178 =item B<-f[I<m> [- I<n>]]>
180 Folding on I<m> length with I<n> margin in a line.
181 Without this option, fold length is 60 and fold margin is 10.
185 New line preserving line folding.
189 Convert X0208 alphabet (Fullwidth Alphabets) to ASCII.
195 Convert X0208 alphabet to ASCII.
199 Convert X0208 kankaku to single ASCII space.
203 Convert X0208 kankaku to double ASCII spaces.
207 Replacing fullwidth >, <, ", & into '>', '<', '"', '&' as in HTML.
213 With B<-X> or without this option, X0201 is converted into X0208 Kana.
214 With B<-x>, try to preserve X0208 kana and do not convert X0201 kana to X0208.
215 In JIS output, ESC-(-I is used. In EUC output, SS2 is used.
219 Assume broken JIS-Kanji input, which lost ESC.
220 Useful when your site is using old B-News Nihongo patch.
226 allows any chars after ESC-( or ESC-$.
230 force ASCII after NL.
236 Replacing non iso-2022-jp char into a geta character
237 (substitute character in Japanese).
241 MIME ISO-2022-JP/ISO8859-1 decode. (DEFAULT)
242 To see ISO8859-1 (Latin-1) -l is necessary.
248 Decode MIME base64 encoded stream. Remove header or other part before
253 Decode MIME quoted stream. '_' in quoted stream is converted to space.
258 It allows line break in the middle of the base64 encoding.
268 MIME encode. Header style. All ASCII code and control characters are intact.
274 MIME encode Base64 stream.
275 Kanji conversion is performed before encoding, so this cannot be used as a picture encoder.
279 Perform quoted encoding.
285 Input and output code is ISO8859-1 (Latin-1) and ISO-2022-JP.
286 B<-s>, B<-e> and B<-x> are not compatible with this option.
288 =item B<-L[uwm] -d -c>
306 Without this option, nkf doesn't convert line breaks.
310 =item B<--fj --unix --mac --msdos --windows>
312 Convert for these systems.
314 =item B<--jis --euc --sjis --mime --base64>
316 Convert to named code.
318 =item B<--jis-input --euc-input --sjis-input --mime-input --base64-input>
322 =item B<--ic=I<input codeset> --oc=I<output codeset>>
324 Set the input or output codeset.
325 NKF supports following codesets and those codeset names are case insensitive.
331 a.k.a. RFC1468, 7bit JIS, JUNET
333 =item EUC-JP (eucJP-nkf)
335 a.k.a. AT&T JIS, Japanese EUC, UJIS
343 Microsoft Version of EUC-JP.
347 a.k.a. SJIS, MS_Kanji
365 =item UTF8-MAC (input only)
375 UTF-16 Big Endian without BOM
379 UTF-16 Big Endian with BOM
383 UTF-16 Little Endian without BOM
387 UTF-16 Little Endian with BOM
395 UTF-32 Big Endian without BOM
399 UTF-32 Big Endian with BOM
403 UTF-32 Little Endian without BOM
407 UTF-32 Little Endian with BOM
411 =item B<--fb-{skip, html, xml, perl, java, subchar}>
413 Specify the way that nkf handles unassigned characters.
414 Without this option, --fb-skip is assumed.
416 =item B<--prefix=I<escape character>I<target character>..>
418 When nkf converts to Shift_JIS,
419 nkf adds a specified escape character to specified 2nd byte of Shift_JIS characters.
420 1st byte of argument is the escape character and following bytes are target characters.
422 =item B<--no-cp932ext>
424 Handle the characters extended in CP932 as unassigned characters.
426 =item B<--no-best-fit-chars>
428 When Unicode to Encoded byte conversion,
429 don't convert characters which is not round trip safe.
430 When Unicode to Unicode conversion,
431 with this and -x option, nkf can be used as UTF converter.
432 (In other words, without this and -x option, nkf doesn't save some characters)
434 When nkf converts strings that related to path, you should use this opion.
438 Decode hex encoded characters.
442 Unescape percent escaped characters.
444 =item B<--numchar-input>
446 Decode character reference, such as "&#....;".
449 =item B<--in-place[=>I<SUFFIX>B<]> B<--overwrite[=>I<SUFFIX>B<]>
451 Overwrite B<original> listed files by filtered result.
453 B<Note> --overwrite preserves timestamps of original files.
455 =item B<--guess=[12]>
457 Print guessed encoding and newline. (2 is default, 1 is only encoding)
470 Ignore rest of -option.
476 Copyright (c) 1987, Fujitsu LTD. (Itaru ICHIKAWA).
478 Copyright (c) 1996-2013, The nkf Project.