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Friday, 1 January 2010

auto_ef man page

User Commands                                          auto_ef(1)

     auto_ef - auto encoding finder

     /usr/bin/auto_ef [-e encoding_list] [-a]  [-l  level]  [file

     /usr/bin/auto_ef -h

     The auto_ef utility identifies the encoding of a given file.
     The  utility  judges  the  encoding  by using the iconv code
     conversion, determining whether a  certain  code  conversion
     was  successful  with  the file, and also by performing fre-
     quency analyses on the character sequences  that  appear  in
     the file.

     The auto_ef utility might produce unexpected output  if  the
     string is binary, a character table, a localized digit list,
     or a chronogram, or if the string or file is very  small  in
     size (for example, less than one 100 bytes).

     ASCII                   JIS

     eucJP                   Japanese EUC

     PCK                     Japanese PC Kanji, CP932, Shift JIS

     UTF-8                   Korean EUC

     ko_KR.cp949             Unified Hangul

     ISO-2022-KR             ISO-2022 Korean

     zh_CN.iso2022-CN        ISO-2022 CN/CN-EXT

SunOS 5.10          Last change: 26 Sep 2004                    1

User Commands                                          auto_ef(1)

     zh_CN.euc               Simplified Chinese EUC, GB2312

     GB18030                 Simplified Chinese GB18030/GBK

     zh_TW-big5              BIG5

     zh_TW-euc               Traditional Chinese EUC

     zh_TW.hkscs             Hong Kong BIG5

     iso-8859-1              West European, and similar

     iso-8859-2              East European, and similar

     iso-8859-5              Cyrillic, and similar

     iso-8859-6              Arabic

     iso-8859-7              Greek

     iso-8859-8              Hebrew

     CP1250                  windows-1250, corresponding to  ISO-

     CP1251                  windows-1251, corresponding to  ISO-

SunOS 5.10          Last change: 26 Sep 2004                    2

User Commands                                          auto_ef(1)

     CP1252                  windows-1252, corresponding to  ISO-

     CP1253                  windows-1253, corresponding to  ISO-

     CP1255                  windows-1255, corresponding to  ISO-

     koi8-r                  corresponding to iso-8859-5

     By default, auto_ef returns a single, most  likely  encoding
     for  text in a specified file. To get all possible encodings
     for the file, use the -a option.

     Also by default, auto_ef uses the fastest process to examine
     the file. For more accurate results, use the -l option.

     To examine data with a limited set of encodings, use the  -e

     The following options are supported:

     -a                      Shows  all  possible  encodings   in
                             order of possibility, with scores in
                             the range between  0.0  and  1.0.  A
                             higher  score  means a higher possi-
                             bility. For example,

                             example% auto_ef -a test_file
                             eucJP           0.89
                             zh_CN.euc       0.04
                             ko_KR.euc       0.01

                             Without this option, only one encod-
                             ing with the highest score is shown.

     -e encoding_list        Examines data  only  with  specified
                             encodings.    For    example,   when
                             encoding_list   is   specified    as

SunOS 5.10          Last change: 26 Sep 2004                    3

User Commands                                          auto_ef(1)

                             "ko_KR.euc:ko_KR.cp949",     auto_ef
                             examines text only  with  CP949  and
                             ko_KR.euc.   Without   this  option,
                             auto_ef  examines  text   with   all
                             encodings. Multiple encodings can be
                             specified by separating  the  encod-
                             ings using a colon (:).

     -h                      Shows the usage message.

     -l level                Specifies the level of judgment. The
                             value of level can be 0, 1, 2, or 3.
                             Level 3 produces the best result but
                             can  be slow. Level 0 is fastest but
                             results can be less accurate than in
                             higher  levels. The default is level

     The following operands are supported:

     file            File name to examine.

     Example 1: Examining encoding of a file

     example% auto_ef file_name

     Example 2: Examining encoding of a file at level 2.

     example% auto_ef -l 2 file_name

     Example 3: Examining encoding of a file with only  eucJP  or

     example% auto_ef -e "eucJP:ko_KR.euc" file_name

     The following exit values are returned:

     0        Successful completion

SunOS 5.10          Last change: 26 Sep 2004                    4

User Commands                                          auto_ef(1)

     1        An error occurred.

     See attributes(5) for descriptions of the  following  attri-

    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    | Availability                | SUNWautoef                  |
    | Interface Stability         | See below.                  |

     Interface Stability of output  format,  when  option  -a  is
     specified, is Evolving. Other interfaces are Stable.

     auto_ef(3EXT), libauto_ef(3LIB), attributes(5)

     International Language Environments Guide

SunOS 5.10          Last change: 26 Sep 2004                    5

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