1 # Copyright (c) 1987, Fujitsu LTD. (Itaru ICHIKAWA).
2 # Copyright (c) 1996-2015, 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>.
80 multiple options are specifed as seprate strings, such as
82 print nkf('--ic=UTF8-MAC', '-w', $string), "\n";
84 except the last arguments.
90 =item B<-J -S -E -W -W16 -W32 -j -s -e -w -w16 -w32>
92 Specify input and output encodings. Upper case is input.
99 ISO-2022-JP (JIS code).
103 Shift_JIS and JIS X 0201 kana.
104 EUC-JP is recognized as X0201 kana. Without B<-x> flag,
105 JIS X 0201 Katakana (a.k.a.halfwidth kana) is converted into JIS X 0208.
106 If you use Windows, see Windows-31J (CP932).
119 B or L gives whether Big Endian or Little Endian.
120 0 gives whther put BOM or not.
125 B or L gives whether Big Endian or Little Endian.
126 0 gives whther put BOM or not.
132 Output is buffered (DEFAULT), Output is unbuffered.
140 Specify the escape sequence for JIS X 0208.
146 Use ESC ( @. (JIS X 0208-1978)
150 Use ESC ( B. (JIS X 0208-1983/1990 DEFAULT)
156 Specify the escape sequence for US-ASCII/JIS X 0201 Roman. (DEFAULT B)
160 {de/en}crypt ROT13/47
162 =item B<-h[123] --hiragana --katakana --katakana-hiragana>
166 =item B<-h1 --hiragana>
168 Katakana to Hiragana conversion.
170 =item B<-h2 --katakana>
172 Hiragana to Katakana conversion.
174 =item B<-h3 --katakana-hiragana>
176 Katakana to Hiragana and Hiragana to Katakana conversion.
182 Text mode output (MS-DOS)
184 =item B<-f[I<m> [- I<n>]]>
186 Folding on I<m> length with I<n> margin in a line.
187 Without this option, fold length is 60 and fold margin is 10.
191 New line preserving line folding.
195 Convert X0208 alphabet (Fullwidth Alphabets) to ASCII.
201 Convert X0208 alphabet to ASCII.
205 Convert X0208 kankaku to single ASCII space.
209 Convert X0208 kankaku to double ASCII spaces.
213 Replacing fullwidth >, <, ", & into '>', '<', '"', '&' as in HTML.
219 With B<-X> or without this option, X0201 is converted into X0208 Kana.
220 With B<-x>, try to preserve X0208 kana and do not convert X0201 kana to X0208.
221 In JIS output, ESC-(-I is used. In EUC output, SS2 is used.
225 Assume broken JIS-Kanji input, which lost ESC.
226 Useful when your site is using old B-News Nihongo patch.
232 allows any chars after ESC-( or ESC-$.
236 force ASCII after NL.
242 Replacing non iso-2022-jp char into a geta character
243 (substitute character in Japanese).
247 MIME ISO-2022-JP/ISO8859-1 decode. (DEFAULT)
248 To see ISO8859-1 (Latin-1) -l is necessary.
254 Decode MIME base64 encoded stream. Remove header or other part before
259 Decode MIME quoted stream. '_' in quoted stream is converted to space.
264 It allows line break in the middle of the base64 encoding.
274 MIME encode. Header style. All ASCII code and control characters are intact.
280 MIME encode Base64 stream.
281 Kanji conversion is performed before encoding, so this cannot be used as a picture encoder.
285 Perform quoted encoding.
291 Input and output code is ISO8859-1 (Latin-1) and ISO-2022-JP.
292 B<-s>, B<-e> and B<-x> are not compatible with this option.
294 =item B<-L[uwm] -d -c>
312 Without this option, nkf doesn't convert line breaks.
316 =item B<--fj --unix --mac --msdos --windows>
318 Convert for these systems.
320 =item B<--jis --euc --sjis --mime --base64>
322 Convert to named code.
324 =item B<--jis-input --euc-input --sjis-input --mime-input --base64-input>
328 =item B<--ic=I<input codeset> --oc=I<output codeset>>
330 Set the input or output codeset.
331 NKF supports following codesets and those codeset names are case insensitive.
337 a.k.a. RFC1468, 7bit JIS, JUNET
339 =item EUC-JP (eucJP-nkf)
341 a.k.a. AT&T JIS, Japanese EUC, UJIS
349 Microsoft Version of EUC-JP.
353 a.k.a. SJIS, MS_Kanji
371 =item UTF8-MAC (input only)
381 UTF-16 Big Endian without BOM
385 UTF-16 Big Endian with BOM
389 UTF-16 Little Endian without BOM
393 UTF-16 Little Endian with BOM
401 UTF-32 Big Endian without BOM
405 UTF-32 Big Endian with BOM
409 UTF-32 Little Endian without BOM
413 UTF-32 Little Endian with BOM
417 =item B<--fb-{skip, html, xml, perl, java, subchar}>
419 Specify the way that nkf handles unassigned characters.
420 Without this option, --fb-skip is assumed.
422 =item B<--prefix=I<escape character>I<target character>..>
424 When nkf converts to Shift_JIS,
425 nkf adds a specified escape character to specified 2nd byte of Shift_JIS characters.
426 1st byte of argument is the escape character and following bytes are target characters.
428 =item B<--no-cp932ext>
430 Handle the characters extended in CP932 as unassigned characters.
432 =item B<--no-best-fit-chars>
434 When Unicode to Encoded byte conversion,
435 don't convert characters which is not round trip safe.
436 When Unicode to Unicode conversion,
437 with this and -x option, nkf can be used as UTF converter.
438 (In other words, without this and -x option, nkf doesn't save some characters)
440 When nkf converts strings that related to path, you should use this opion.
444 Decode hex encoded characters.
448 Unescape percent escaped characters.
450 =item B<--numchar-input>
452 Decode character reference, such as "&#....;".
455 =item B<--in-place[=>I<SUFFIX>B<]> B<--overwrite[=>I<SUFFIX>B<]>
457 Overwrite B<original> listed files by filtered result.
459 B<Note> --overwrite preserves timestamps of original files.
461 =item B<--guess=[12]>
463 Print guessed encoding and newline. (2 is default, 1 is only encoding)
476 Ignore rest of -option.
482 Copyright (c) 1987, Fujitsu LTD. (Itaru ICHIKAWA).
484 Copyright (c) 1996-2015, The nkf Project.