gencat - generate a formatted message catalog file
gencat [-l] catfile msgfile ...
Message catalogs allow a program to process input and produce output
according to local customs and languages. For details, see Native
Language Support Users Guide.
The gencat command merges each message source msgfile into a formatted
message catalog catfile that can be accessed by catgets() (see
catgets(3C)). If catfile does not exist, it is created. If catfile
exists, its messages are included in the new catfile. If set and
message numbers collide, the new message text in file replaces the old
message text in catfile. A msgfile consists of message, directive,
and comment lines (all without leading spaces or tabs) described
below. Except as noted, fields are separated by one or more space or
If - is specified as catalog file, standard output is used.
If - is specified for an instance of message file, standard input is
$set s [comment] A $set directive specifies the set s, of
the messages that follow until the next
$set or end-of-file appears. The set
number s is an unsigned integer in the
range 1 through NL_SETMAX. Any string
following the set number is treated as a
comment. If a $set directive is not
specified, messages are put in the default
Set numbers must be in ascending order
within a msgfile but need not be
$delset s [comment] A $delset directive deletes the message
set identified by the set number s, from
an existing message catalog. Any string
following the set number is treated as a
m message_text A message line specifies a message number
m, and associated message text. The
message number m is an unsigned integer in
the range 1 through NL_MSGMAX. The
message_text is a C string, including
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spaces, tabs and \ (backslash) escapes,
but by default without surrounding quotes
(see $quote directive below). The message
number m is separated from the
message_text by a single space or tab
character. The message_text begins with
the first character following the
separator and ends at new-line. Extra
spaces or tabs (including any trailing
spaces or tabs) are considered part of the
The message_text of a message line is
stored in catfile with message number m
and set number s specified by the most
recent $set directive.
Message numbers must be in ascending order
within a set, but need not be contiguous.
Note that the space or tab separator
distinguishes insertion of a null message
from deletion of a message. If a message
line has a number and separator but no
text, the message number and an associated
null message string are stored in catfile.
If a message line has a number but neither
separator nor text, the message number and
its associated message text are deleted
-l If the -l option is specified, the length
of message_text must be no more than
MAX_BUFLEN - 1 bytes. If the -l option is
not specified, the length of message_text
must be no more than NL_TEXTMAX bytes.
See catgets(3C), for message length limits
imposed by these routines.
$quote [q comment] A $quote directive specifies a quote
character q, used to surround message_text
and make leading and trailing space
visible in a message line. Any string
following the specified quote character q
is treated as a comment. By default, or
if a quote character q not is supplied,
quoting of message_text is not recognized.
$ comment A $ followed by a space or tab is treated
as a comment and can appear anywhere in a
file. A line consisting of zero or more
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spaces or tabs is treated as a comment
NL_TEXTMAX, NL_SETMAX, and NL_MSGMAX are defined in <<<<limits.h>>>>.
NL_SETD is defined in <<<<nl_types.h>>>>. MAX_BUFLEN is defined in
LANG provides a default value for the internationalization variables
that are unset or null. If LANG is unset or null, the default value
of "C" (see lang(5)) is used. If any of the internationalization
variables contains an invalid setting, gencat will behave as if all
internationalization variables are set to "C". See environ(5).
LC_ALL, if set to a non-empty string value, overrides the values of
all of the other internationalization variables.
LC_CTYPE determines the interpretation of text as single and/or
multi-byte characters, the classification of characters as printable,
and the characters matched by character class expressions in regular
LC_MESSAGES determines the locale that should be used to affect the
format and contents of diagnostic messages written to standard error
and informative messages written to standard output.
NLSPATH determines the location of message catalogs for the processing
International Code Set Support
Single- and multi-byte character code sets are supported.
The $quote directive is not currently supported on the HP MPE and RTE
gencat was developed by HP and the X/Open Company, Ltd.
dumpmsg(1), findmsg(1), insertmsg(1), catgets(3C), catopen(3C).
Native Language Support Users Guide.
gencat: XPG2, XPG3
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