1nkf(1) nkf(1)
2
6 nkf - Network Kanji Filter
7
9 nkf [-butjnesliohrTVvwWJESZxXFfmMBOcdILg] [file ...]
10
12 Nkf is a yet another kanji code converter among networks, hosts and
13 terminals. It converts input kanji code to designated kanji code such
14 as ISO-2022-JP, Shift_JIS, EUC-JP, UTF-8 or UTF-16.
15 One of the most unique faculty of nkf is the guess of the input kanji
17 encodings. It currently recognizes ISO-2022-JP, Shift_JIS, EUC-JP,
18 UTF-8 and UTF-16. So users needn't set the input kanji code explic‐
19 itly.
20 By default, X0201 kana is converted into X0208 kana. For X0201 kana,
22 SO/SI, SSO and ESC-(-I methods are supported. For automatic code
23 detection, nkf assumes no X0201 kana in Shift_JIS. To accept X0201 in
24 Shift_JIS, use -X, -x or -S.
25
27 -b -u
28 Output is buffered (DEFAULT), Output is unbuffered.
29 -j -s -e -w -w16
31 Output code is ISO-2022-JP (7bit JIS), Shift_JIS, EUC-JP, UTF-8N,
32 UTF-16BE. Without this option and compile option, ISO-2022-JP is
33 assumed.
34 -J -S -E -W -W16
36 Input assumption is JIS 7 bit, Shift_JIS, EUC-JP, UTF-8, UTF-16LE.
37 -J Assume JIS input. It also accepts EUC-JP. This is the
39 default. This flag does not exclude Shift_JIS.
40 -S Assume Shift_JIS and X0201 kana input. It also accepts JIS.
42 EUC-JP is recognized as X0201 kana. Without -x flag, X0201 kana
43 (halfwidth kana) is converted into X0208.
44 -E Assume EUC-JP input. It also accepts JIS. Same as -J.
46 -t No conversion.
48 -i[@B]
50 Specify the Esc Seq for JIS X 0208-1978/83. (DEFAULT B)
51 -o[BJH]
53 Specify the Esc Seq for ASCII/Roman. (DEFAULT B)
54 -r {de/en}crypt ROT13/47
56 -h[123] --hiragana --katakana --katakana-hiragana
58 -h1 --hiragana
59 Katakana to Hiragana conversion.
60 -h2 --katakana
62 Hiragana to Katakana conversion.
63 -h3 --katakana-hiragana
65 Katakana to Hiragana and Hiragana to Katakana conversion.
66 -T Text mode output (MS-DOS)
68 -l ISO8859-1 (Latin-1) support
70 -f[m [- n]]
72 Folding on m length with n margin in a line. Without this option,
73 fold length is 60 and fold margin is 10.
74 -F New line preserving line folding.
76 -Z[0-3]
78 Convert X0208 alphabet (Fullwidth Alphabets) to ASCII.
79 -Z -Z0
81 Convert X0208 alphabet to ASCII.
82 -Z1 Converts X0208 kankaku to single ASCII space.
84 -Z2 Converts X0208 kankaku to double ASCII spaces.
86 -Z3 Replacing Fullwidth >, <, ", & into '>', '<', '"',
88 '&' as in HTML.
89 -X -x
91 Assume X0201 kana in MS-Kanji. With -X or without this option,
92 X0201 is converted into X0208 Kana. With -x, try to preserve X0208
93 kana and do not convert X0201 kana to X0208. In JIS output,
94 ESC-(-I is used. In EUC output, SSO is used.
95 -B[0-2]
97 Assume broken JIS-Kanji input, which lost ESC. Useful when your
98 site is using old B-News Nihongo patch.
99 -B1 allows any char after ESC-( or ESC-$.
101 -B2 forces ASCII after NL.
103 -I Replacing non iso-2022-jp char into a geta character (substitute
105 character in Japanese).
106 -m[BQN0]
108 MIME ISO-2022-JP/ISO8859-1 decode. (DEFAULT) To see ISO8859-1
109 (Latin-1) -l is necessary.
110 -mB Decode MIME base64 encoded stream. Remove header or other part
112 before conversion.
113 -mQ Decode MIME quoted stream. '_' in quoted stream is converted to
115 space.
116 -mN Non-strict decoding. It allows line break in the middle of the
118 base64 encoding.
119 -m0 No MIME decode.
121 -M MIME encode. Header style. All ASCII code and control characters
123 are intact.
124 -MB MIME encode Base64 stream. Kanji conversion is performed
126 before encoding, so this cannot be used as a picture encoder.
127 -MQ Perfome quoted encoding.
129 -l Input and output code is ISO8859-1 (Latin-1) and ISO-2022-JP. -s,
131 -e and -x are not compatible with this option.
132 -L[uwm] -d -c
134 Convert line breaks.
135 -Lu -d
137 unix (LF)
138 -Lw -c
140 windows (CRLF)
141 -Lm mac (CR)
143 Without this option, nkf doesn't convert line breaks.
145 --fj --unix --mac --msdos --windows
147 convert for these system
148 --jis --euc --sjis --mime --base64
150 convert for named code
151 --jis-input --euc-input --sjis-input --mime-input --base64-input
153 assume input system
154 --ic=input codeset --oc=output codeset
156 Set the input or output codeset. NKF supports following codesets
157 and those codeset name are case insensitive.
158 ISO-2022-JP
160 a.k.a. RFC1468, 7bit JIS, JUNET
161 EUC-JP (eucJP-nkf)
163 a.k.a. AT&T JIS, Japanese EUC, UJIS
164 eucJP-ascii
166 eucJP-ms
167 CP51932
168 Microsoft Version of EUC-JP.
169 Shift_JIS
171 a.k.a. SJIS, MS-Kanji
172 CP932
174 a.k.a. Windows-31J
175 UTF-8
177 same as UTF-8N
178 UTF-8N
180 UTF-8 without BOM
181 UTF-8-BOM
183 UTF-8 with BOM
184 UTF8-MAC (input only)
186 decomposed UTF-8
187 UTF-16
189 same as UTF-16BE
190 UTF-16BE
192 UTF-16 Big Endian without BOM
193 UTF-16BE-BOM
195 UTF-16 Big Endian with BOM
196 UTF-16LE
198 UTF-16 Little Endian without BOM
199 UTF-16LE-BOM
201 UTF-16 Little Endian with BOM
202 --fb-{skip, html, xml, perl, java, subchar}
204 Specify the way that nkf handles unassigned characters. Without
205 this option, --fb-skip is assumed.
206 --prefix=escape charactertarget character..
208 When nkf converts to Shift_JIS, nkf adds a specified escape charac‐
209 ter to specified 2nd byte of Shift_JIS characters. 1st byte of
210 argument is the escape character and following bytes are target
211 characters.
212 --no-cp932ext
214 Handle the characters extended in CP932 as unassigned characters.
215 --no-best-fit-chars
217 When Unicode to Encoded byte conversion, don't convert characters
218 which is not round trip safe. When Unicode to Unicode conversion,
219 with this and -x option, nkf can be used as UTF converter. (In
220 other words, without this and -x option, nkf doesn't save some
221 characters)
222 When nkf convert string which related to path, you should use this
224 opion.
225 --cap-input
227 Decode hex encoded characters.
228 --url-input
230 Unescape percent escaped characters.
231 --numchar-input
233 Decode character reference, such as "&#....;".
234 --in-place[=SUFFIX] --overwrite[=SUFFIX]
236 Overwrite original listed files by filtered result.
237 Note --overwrite preserves timestamp of original files.
239 --guess
241 Print guessed encoding.
242 --help
244 Print nkf's help.
245 --version
247 Print nkf's version.
248 -- Ignore rest of -option.
250
252 Copyright (C) 1987, FUJITSU LTD. (I.Ichikawa),2000 S. Kono, COW Copy‐
253 right (C) 2002-2006 Kono, Furukawa, Naruse, mastodon
254nkf 2.0.8 2006-08-22 nkf(1)