nkf(1)
NAME
nkf - Network Kanji Filter
SYNOPSIS
nkf B<[-butjnesliohrTVvwWJESZxXFfmMBOcdILg]> B<[>I<file ...>B<]>
DESCRIPTION
Nkf is a yet another kanji code converter among networks, hosts and
terminals. It converts input kanji code to designated kanji code such
as ISO-2022-JP, Shift_JIS, EUC-JP, UTF-8 or UTF-16.
One of the most unique faculty of nkf is the guess of the input kanji
encodings. It currently recognizes ISO-2022-JP, Shift_JIS, EUC-JP,
UTF-8 and UTF-16. So users needn't set the input kanji code explicitly.
By default, X0201 kana is converted into X0208 kana. For X0201 kana,
SO/SI, SSO and ESC-(-I methods are supported. For automatic code
detection, nkf assumes no X0201 kana in Shift_JIS. To accept X0201 in
Shift_JIS, use -X, -x or -S.
OPTIONS
- -b -u
- Output is buffered (DEFAULT), Output is unbuffered.
- -j -s -e -w -w16
- Output code is ISO-2022-JP (7bit JIS), Shift_JIS, EUC-JP, UTF-8N,
UTF-16BE. Without this option and compile option, ISO-2022-JP is
assumed. - -J -S -E -W -W16
- Input assumption is JIS 7 bit, Shift_JIS, EUC-JP, UTF-8, UTF-16LE.
- -J Assume JIS input. It also accepts EUC-JP. This is the
default. This flag does not exclude Shift_JIS.
- -S Assume Shift_JIS and X0201 kana input. It also accepts JIS.
EUC-JP is recognized as X0201 kana. Without -x flag, X0201 kana (halfwidth kana) is converted into X0208.
- -E Assume EUC-JP input. It also accepts JIS. Same as -J.
- -t No conversion.
- -i[@B]
- Specify the Esc Seq for JIS X 0208-1978/83. (DEFAULT B)
- -o[BJH]
- Specify the Esc Seq for ASCII/Roman. (DEFAULT B)
- -r {de/en}crypt ROT13/47
- -h[123] --hiragana --katakana --katakana-hiragana
- -h1 --hiragana
Katakana to Hiragana conversion.
- -h2 --katakana
Hiragana to Katakana conversion.
- -h3 --katakana-hiragana
Katakana to Hiragana and Hiragana to Katakana conversion.
- -T Text mode output (MS-DOS)
- -l ISO8859-1 (Latin-1) support
- -f[mm [- nn]]
- Folding on m length with n margin in a line. Without this option, fold length is 60 and fold margin is 10.
- -F New line preserving line folding.
- -Z[0-3]
- Convert X0208 alphabet (Fullwidth Alphabets) to ASCII.
- -Z -Z0
Convert X0208 alphabet to ASCII.
- -Z1 Converts X0208 kankaku to single ASCII space.
- -Z2 Converts X0208 kankaku to double ASCII spaces.
- -Z3 Replacing Fullwidth >, <, ", & into '>', '<', '"',
'&' as in HTML.
- -X -x
- Assume X0201 kana in MS-Kanji. With -X or without this option,
X0201 is converted into X0208 Kana. With -x, try to preserve X0208
kana and do not convert X0201 kana to X0208. In JIS output,
ESC-(-I is used. In EUC output, SSO is used. - -B[0-2]
- Assume broken JIS-Kanji input, which lost ESC. Useful when your
site is using old B-News Nihongo patch. - -B1 allows any char after ESC-( or ESC-$.
- -B2 forces ASCII after NL.
- -I Replacing non iso-2022-jp char into a geta character (substitute
- character in Japanese).
- -m[BQN0]
- MIME ISO-2022-JP/ISO8859-1 decode. (DEFAULT) To see ISO8859-1
(Latin-1) -l is necessary. - -mB Decode MIME base64 encoded stream. Remove header or other part
before conversion.
- -mQ Decode MIME quoted stream. '_' in quoted stream is converted to
space.
- -mN Non-strict decoding. It allows line break in the middle of the
base64 encoding.
- -m0 No MIME decode.
- -M MIME encode. Header style. All ASCII code and control characters
- are intact.
- -MB MIME encode Base64 stream. Kanji conversion is performed
before encoding, so this cannot be used as a picture encoder.
- -MQ Perfome quoted encoding.
- -l Input and output code is ISO8859-1 (Latin-1) and ISO-2022-JP. -s,
- -e and -x are not compatible with this option.
- -L[uwm] -d -c
- Convert line breaks.
- -Lu -d
unix (LF)
- -Lw -c
windows (CRLF)
- -Lm mac (CR)
Without this option, nkf doesn't convert line breaks. - --fj --unix --mac --msdos --windows
- convert for these system
- --jis --euc --sjis --mime --base64
- convert for named code
- --jis-input --euc-input --sjis-input --mime-input --base64-input
- assume input system
- --ic=iinnppuutt ccooddeesseett --oc=oouuttppuutt ccooddeesseett
- Set the input or output codeset. NKF supports following codesets
and those codeset name are case insensitive. - ISO-2022-JP
a.k.a. RFC1468, 7bit JIS, JUNET
- EUC-JP (eucJP-nkf)
a.k.a. AT&T JIS, Japanese EUC, UJIS
- eucJP-ascii
eucJP-ms
CP51932Microsoft Version of EUC-JP. - Shift_JIS
a.k.a. SJIS, MS-Kanji
- CP932
a.k.a. Windows-31J
- UTF-8
same as UTF-8N
- UTF-8N
UTF-8 without BOM
- UTF-8-BOM
UTF-8 with BOM
- UTF-16
same as UTF-16BE
- UTF-16BE
UTF-16 Big Endian without BOM
- UTF-16BE-BOM
UTF-16 Big Endian with BOM
- UTF-16LE
UTF-16 Little Endian without BOM
- UTF-16LE-BOM
UTF-16 Little Endian with BOM
- UTF8-MAC (input only)
- --fb-{skip, html, xml, perl, java, subchar}
- Specify the way that nkf handles unassigned characters. Without
this option, --fb-skip is assumed. - --prefix=eessccaappee cchhaarraacctteerrttaarrggeett cchhaarraacctteerr..
- When nkf converts to Shift_JIS, nkf adds a specified escape character to specified 2nd byte of Shift_JIS characters. 1st byte of
argument is the escape character and following bytes are target
characters. - --no-cp932ext
- Handle the characters extended in CP932 as unassigned characters.
- --no-best-fit-chars
- When Unicode to Encoded byte conversion, don't convert characters
which is not round trip safe. When Unicode to Unicode conversion, with this and -x option, nkf can be used as UTF converter. (In
other words, without this and -x option, nkf doesn't save some
characters) - When nkf convert string which related to path, you should use this opion.
- --cap-input
- Decode hex encoded characters.
- --url-input
- Unescape percent escaped characters.
- --numchar-input
- Decode character reference, such as "&#....;".
- --in-place[=SUFFIX] --overwrite[=SUFFIX]
- Overwrite original listed files by filtered result.
- Note --overwrite preserves timestamp of original files.
- --guess
- Print guessed encoding.
- --help
- Print nkf's help.
- --version
- Print nkf's version.
- -- Ignore rest of -option.
AUTHOR
- Copyright (C) 1987, FUJITSU LTD. (I.Ichikawa),2000 S. Kono, COW Copyright (C) 2002-2006 Kono, Furukawa, Naruse, mastodon