gettxt(3C) (C Program Language Utilities) gettxt(3C)
NAME
gettxt - retrieve a text string
SYNOPSIS
#include <nltypes.h>
char *gettxt (const char *msgid, const char *dfltstr);
DESCRIPTION
gettxt retrieves a text string from a message file. The arguments to
the function are a message identification msgid and a default string
dflt_str to be used if the retrieval fails.
The text strings are in files created by the mkmsgs utility [see
mkmsgs(1)] and installed in directories in
/usr/lib/locale/<locale>/LCMESSAGES.
The directory <locale> can be viewed as the language in which the
text strings are written. The user can request that messages be
displayed in a specific language by setting the environment variable
LCMESSAGES. If LCMESSAGES is not set, the environment variable
LANG will be used. If LANG is not set, the files containing the
strings are in /usr/lib/locale/C/LCMESSAGES/*.
The user can also change the language in which the messages are
displayed by invoking the setlocale function with the appropriate
arguments.
If gettxt fails to retrieve a message in a specific language it will
try to retrieve the same message in U.S. English. On failure, the
processing depends on what the second argument dflt_str points to. A
pointer to the second argument is returned if the second argument is
not the null string. If dflt_str points to the null string, a
pointer to the U.S. English text string "Message not found!!\n" is
returned.
The following depicts the acceptable syntax of msgid for a call to
gettxt.
<msgid> = <msgfilename>:<msgnumber>
The first field is used to indicate the file that contains the text
strings and must be limited to 14 characters. These characters must
be selected from the set of all character values excluding \0 (null)
and the ASCII code for / (slash) and : (colon). The names of message
files must be the same as the names of files created by mkmsgs and
installed in /usr/lib/locale/<locale>/LCMESSAGES/*. The numeric
field indicates the sequence number of the string in the file. The
strings are numbered from 1 to n where n is the number of strings in
the file.
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gettxt(3C) (C Program Language Utilities) gettxt(3C)
On failure to pass the correct msgid or a valid message number to
gettxt a pointer to the text string "Message not found!!\n" is
returned.
EXAMPLE
gettxt("UX:10", "hello world\n")
gettxt("UX:10", "")
UX is the name of the file that contains the messages. 10 is the
message number.
FILES
/usr/lib/locale/C/LCMESSAGES/* contains default message files created by
mkmsgs
/usr/lib/locale/locale/LCMESSAGES/* contains message files for different
languages created by mkmsgs
SEE ALSO
fmtmsg(3C), setlocale(3C), environ(5).
exstr(1), mkmsgs(1), srchtxt(1) in the User's Reference Manual.
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