iconv_JEF(5) File Formats Manual iconv_JEF(5)
NAME
iconv_JEF - Specification for controlling conversion between Fujitsu JEF and Tru64 UNIX Japanese codesets
DESCRIPTION
The iconv utility supports the ability to convert the encoding of characters between Fujitsu JEF (Japanese processing Extended Feature)
code and one of the following Tru64 UNIX codesets: DEC Kanji, Super DEC Kanji, Japanese EUC, or Shift JIS. You choose the type of conver-
sion by specifying the appropriate values for the utility's from-code and to-code parameters, as follows:
------------------------------------------------
Type of Code Conversion from-code to-code
------------------------------------------------
JEF to DEC Kanji JEF deckanji
JEF to Super DEC Kanji JEF sdeckanji
JEF to Japanese EUC JEF eucJP
JEF to Shift JIS JEF SJIS
DEC Kanji to JEF deckanji JEF
Super DEC Kanji to JEF sdeckanji JEF
Japanese EUC to JEF eucJP JEF
Shift JIS to JEF SJIS JEF
------------------------------------------------
Conversion behavior for the following items is affected by the definition of environment variables or profile entries in the user's envi-
ronment. For more information, see the "Environment Variables" and "Profile" sections. The UDC (User-Defined Character) mapping table that
is used for UDC conversion
This table must be an ASCII text file that contains UDC mapping information. The table affects conversion of user-defined charac-
ters between the codesets. The EBCDIC to/from ISO code (ASCII, JIS Roman characters) mapping table that is used for conversion
This table must be ASCII text file that contains information on how to map characters between EBCDIC and ISO code. The K-shift code
This is a one- or two-byte hexadecimal code that marks the beginning of Kanji mode. The A-shift code
This is a one- or two-byte hexadecimal code that marks the beginning of EBCDIC mode. The status of the initial mode (Kanji or
EBCDIC) at the time iconv command starts or the first time the iconv() function is called after calling the iconv_open() function
that initializes the converter in a program
The status keywords are either kanji_mode or ebcdic_mode. How to treat undefined characters when these are detected in Kanji mode
Specify this action by using one of the following keywords: Stop codeset conversion. Output the undefined characters without any
processing and continue codeset conversion. Output padding characters instead of the undefined characters and continue codeset con-
version. Ignore the undefined characters and continue codeset conversion. The two-byte padding character used in Kanji mode
This value is meaningful when replace is chosen for the processing of undefined characters in Kanji mode. Specify the padding char-
acter by its hexadecimal value. How to treat undefined characters when these are detected in EBCDIC mode
Specify this action by using one of the following keywords: Stop codeset conversion. Output the undefined characters without any
processing and continue codeset conversion. Output padding characters instead of the undefined characters and continue codeset con-
version. Ignore the undefined characters and continue codeset conversion. The one-byte padding character used in EBCDIC mode
This value is meaningful when replace is chosen for the processing of undefined characters in EBCDIC mode. Specify the padding char-
acter by its hexadecimal value.
When the to-code parameter for the conversion is JEF, you can also specify the following items for conversion behavior: Whether the initial
shift code is output at the start of conversion if the status of the initial mode (Kanji or EBCDIC) is different from the mode of the first
input character
The start of conversion is the time the iconv utility starts processing, or when the iconv() function is called just after opening
the converter with iconv_open(). Keyword values for this item are yes or no. Whether or not the utility outputs the last shift code
when iconv() is called with a zero length input string, and the current mode (Kanji or EBCDIC) is different from the mode specified
by the last shift state
Keyword values for this item are yes or no. The last status (Kanji mode or EBCDIC mode)
Specify kanji_mode or ebcdic_mode for this value. It is meaningful only when yes is the setting for whether the utility outputs the
last shift code.
If the items that control conversion behavior are specified by both environment variables and the profile file, values set by environment
variables override values set by comparable entries in the profile. Note that values for all conversion control items are case-sensitive,
whether they are set by environment variables or in the profile. The following table contains the default values for each conversion con-
trol item:
----------------------------------------------------
Conversion Control Item Default Value
----------------------------------------------------
UDC mapping table None
K shift code 0x28
A shift code 0x29
Initial state ebcdic_mode
Processing for undefined characters
in Kanji mode abort
Processing for undefined characters
in EBCDIC mode pass
----------------------------------------------------
The default padding characters are white spaces, whose code values for each destination codeset are noted in the following table. These
padding characters are output when you specify replace for processing of undefined characters and do not explicitly specify the padding
character.
---------------------------------------------------
Mode Default Value Destination Codeset
---------------------------------------------------
Kanji mode 0x4040 JEF
0xa1a1 deckanji, sdeckanji,
or eucJP
0x8140 SJIS
EBCDIC mode 0x40 JEF
0x20 deckanji, sdeckanji,
eucJP, or SJIS
---------------------------------------------------
The default EBCDIC-ISO mapping table is as follows; For conversion from JEF to other codesets: /usr/lib/nls/loc/iconv/data/kana_ebcdic.tbl
For conversion from other codesets to JEF: /usr/lib/nls/loc/iconv/data/kana_ebcdic.tbl
These mapping tables map both EBCDIC and ISO code, which includes JIS Roman characters. The kana_ebcdic.tbl mapping table also maps ISO
lowercase characters to EBCDIC uppercase characters.
The following default values for conversion control items are meaningful when the iconv utility's to-code conversion parameter is JEF:
---------------------------------------------
Conversion Control Item Default
---------------------------------------------
Output the initial shift code? yes
Output the last shift code? yes
Output the last status? ebcdic_mode
---------------------------------------------
Environment Variables
This section discusses the environment variables that you can set to control conversion behavior. The names for these variables adhere to
the following format:
fromcode_tocode_controlitem
The name segments for fromcode or tocode can be one of the following key words:
----------------------------
For Codeset: Use:
----------------------------
Fujitsu JEF JEF
DEC Kanji DECKANJI
Super DEC Kanji SDECKANJI
Japanese EUC EUCJP
Shift JIS SJIS
----------------------------
The name segments for controlitem can be one of the following keywords:
--------------------------------------------------------
For Control Item: Use:
--------------------------------------------------------
UDC mapping table UDC_TABLE
EBCDIC-ISO mapping table EBCDIC_TABLE
K shift code K_SHIFT_CODE
A shift code A_SHIFT_CODE
Initial state INITIAL_STATE
Processing of undefined characters
in Kanji mode KANJI_EXCEPT_PROC
Processing of undefined characters
in EBCDIC mode EBCDIC_EXCEPT_PROC
Padding characters
in Kanji mode PADDING_2BYTE_CHAR
Padding characters
in EBCDIC mode PADDING_1BYTE_CHAR
Output initial
shift code INITIAL_SHIFT_CODE
Output last
shift code TRAILER_SHIFT_CODE
Last status LAST_STATE
File path of the profile PROFILE
--------------------------------------------------------
Following are examples of using the setenv C shell command to define environment variables to control conversion behavior. In these exam-
ples, the fromcode name segment indicates Japanese EUC and the tocode name segment indicates JEF:
setenv EUCJP_JEF_UDC_TABLE eucjp_jef_udc.tbl setenv EUCJP_JEF_EBCDIC_TABLE ebcdic_kana.tbl setenv EUCJP_JEF_K_SHIFT_CODE 0x28 setenv
EUCJP_JEF_A_SHIFT_CODE 0x29 setenv EUCJP_JEF_INITIAL_STATE ebcdic_mode setenv EUCJP_JEF_KANJI_EXCEPT_PROC replace setenv
EUCJP_JEF_EBCDIC_EXCEPT_PROC replace setenv EUCJP_JEF_PADDING_2BYTE_CHAR 0x4040 setenv EUCJP_JEF_PADDING_1BYTE_CHAR 0x40 setenv
EUCJP_JEF_INITIAL_SHIFT_CODE yes setenv EUCJP_JEF_TRAILER_SHIFT_CODE yes setenv EUCJP_JEF_LAST_STATE ebcdic_mode setenv EUCJP_JEF_INI-
TIAL_SHIFT_CODE yes setenv EUCJP_JEF_TRAILER_SHIFT_CODE yes setenv EUCJP_JEF_LAST_STATE ebcdic_mode setenv EUCJP_JEF_PROFILE
.eucjp_jef_profile
Directory Search Path
When you specify a file name without a directory, the iconv utility searches the following directories and uses the first file found: Cur-
rent directory Home directory The iconv/data subdirectory of the directory specified by the environment variable LOCPATH
/usr/lib/nls/loc/iconv/data /usr/i18n/lib/nls/loc/iconv/data
If you specify a relative directory path for a file, the utility searches these same directories in the same order and uses the first file
found.
Profile File
Entry lines in the profile file adhere to the following format:
entry_name string_value
The entry_name and string_value fields are separated by spaces or tabs. Do not append a colon (:) after entry_name. The file can also
include blank lines and comment entries, which begin with the # character.
Following are the entry_name values for different conversion control items:
------------------------------------------------------------
Conversion Control Item entry_name
------------------------------------------------------------
UDC mapping table udc_mapping_table
EBCDIC-ISO mapping table ebcdic_mapping_table
K shift code k_shift_code
A shift code a_shift_code
Initial state initial_state
Processing undefined characters
in Kanji mode kanji_except_proc
Processing undefined characters
in EBCDIC mode ebcdic_except_proc
Padding character
in Kanji mode padding_2byte_char
Padding character
in EBCDIC mode padding_1byte_char
Output initial
shift code output_initial_shift_code
Output last
shift code output_trailer_shift_code
Last state last_state
------------------------------------------------------------
Following is a sample profile for converting from Japanese EUC to Fujitsu JEF:.
# # sample profile for eucJP_JEF # udc_mapping_table eucjp_jef_udc.tbl ebcdic_mapping_table kana_ebcdic.tbl
k_shift_code 0x28 # ebcdic -> kanji a_shift_code 0x29 # kanji -> ebcdic ini-
tial_state ebcdic_mode kanji_except_proc replace ebcdic_except_proc replace padding_2byte_char
0x4040 # kanji mode padding_1byte_char 0x40 # ebcdic mode output_initial_shift_code yes out-
put_trailer_shift_code yes last_state ebcdic_mode
The default file names for the profile are as follows;
------------------------------------------------
Code Conversion Default Profile Name
------------------------------------------------
JEF to DEC Kanji .jef_deckanji_profile
JEF to Super DEC Kanji .jef_sdeckanji_profile
JEF to Shift JIS .jef_sjis_profile
JEF to Japanese EUC .jef_eucjp_profile
DEC Kanji to JEF .deckanji_jef_profile
Super DEC Kanji to JEF .sdeckanji_jef_profile
Shift JIS to JEF .sjis_jef_profile
Japanese EUC to JEF .eucjp_jef_profile
------------------------------------------------
By default, the iconv utility checks the directory search path mentioned in the "Directory Search Path" section and uses the first profile
it finds. However, you can also specify an arbitrary file path for your profile instead of the default names by defining the following
environment variables:
-----------------------------------------------------------
Code Conversion Profile Path Environment Variable
-----------------------------------------------------------
JEF to DEC Kanji JEF_DECKANJI_PROFILE
JEF to Super DEC Kanji JEF_SDECKANJI_PROFILE
JEF to Shift JIS JEF_SJIS_PROFILE
JEF to Japanese EUC JEF_EUCJP_PROFILE
DEC Kanji to JEF DECKANJI_JEF_PROFILE
Super DEC Kanji to JEF SDECKANJI_JEF_PROFILE
Shift JIS to JEF SJIS_JEF_PROFILE
Japanese EUC to JEF EUCJP_JEF_PROFILE
-----------------------------------------------------------
UDC Mapping Table
Entries in a UDC mapping table adhere to the following format:
fromcode tocode
Each of these values is a two-byte hexadecimal number. In the case of Super DEC Kanji and Japanese EUC, three-byte hexadecimal values that
begin with SS3 (0x8f), such as 0x8fxxxx, are also valid.
You can specify ranges of UDC from and to values in the same file entry by using a hyphen to separate the codes that start and end each
range:
start_fromcode-end_fromcode start_tocode-end_tocode
When specifying entries that include ranges of values, the number of codes in the from range must always equal the number of codes in the
to range. A UDC mapping table can also include blank lines and comment lines, which begin with the # character. Following is an example of
a UDC mapping table:
# JEF eucJP
0x80a1-0x89fe 0xf5a1-0xfefe # udc 0x8aa1-0x93fe 0x8ff5a1-0x8ffefe # udc 0x94a1-0x99fe
0x8feea1-0x8ff3fe # udc 0x9aa1-0x9afe 0x8ff4a1-0x8ff4fe # udc
The first entry in this file specifies a range of JEF values from 0x80a1 to 0x89fe that are mapped to Japanese EUC code values in the range
0xf5a1 to 0xfefe. You can find additional sample UDC mapping table files in the /usr/i18n/examples/iconv/data directory.
EBCDIC-ISO Mapping Table
Entries in an EBCDIC-ISO mapping table adhere to the following format:
fromcode tocode
Each code is a one-byte hexadecimal number. You can specify a range of character codes as follows:
start_fromcode-end_fromcode start_tocode-end_tocode
When using the range format, the number of hex values in the from range must be the same as the number of hex values in the to range.
The EBCDIC-/ISO mapping table can also include blank lines and comment entries, which begin with the # character.
Following is an example of EBCDIC-ISO code mapping table:
# EBCDIC Kana
0x40 0x20 # space 0x4f 0x21 # '!' 0x7f 0x22 # '"'
. .
. .
. . 0xc1-0xc9 0x41-0x49 # 'A' - 'I' 0xd1-0xd9 0x4a-0x52 # 'J' - 'R'
0xe2-0xe9 0x53-0x5a # 'S' - 'Z'
. .
. .
. .
In this example, the first column of values are from codes and the second column of values are to codes. The first three value entry lines
specify mapping for single characters, whereas the last three value entry lines specify mapping for ranges of characters. You can find
additional sample EBCDIC-ISO mapping tables in the /usr/i18n/lib/nls/loc/iconv/data directory.
NOTES
This reference page contains code conversion specifications that apply only to conversion between Fujitsu JEF code and the DEC Kanji, Super
DEC Kanji, Japanese EUC, and Shift JIS codesets. Refer to iconv_ibmkanji(5) for code conversion specifications between IBM Kanji System
characters and the DEC Kanji, Super DEC Kanji, Japanese EUC, and Shift JIS codesets. Refer to iconv_KEIS(5) for code conversion specifica-
tions between Hitachi KEIS characters and the DEC Kanji, Super DEC Kanji, Japanese EUC, and Shift JIS codesets. Refer to iconv_intro(5)
for information about conversion between DEC Kanji, Super DEC Kanji, Japanese EUC, Shift JIS, and other Tru64 UNIX codesets.
SEE ALSO
Commands: iconv(1)
Functions: iconv(3), iconv_close(3), iconv_open(3)
Others: deckanji(5), eucJP(5), iconv_ibmkanji(5), iconv_intro(5), iconv_KEIS(5), Japanese(5), sdeckanji(5), SJIS(5)
iconv_JEF(5)