gettxt - Retrieves a text string from a message catalog
Standard C Library (libc.so, libc.a)
char *gettxt (
const char *msgid
const char *dflt_str );
Specifies the message identification string. The format of this string is discussed in more detail below. Specifies the default string to use if the identified string is not found.
A message catalog contains text strings that can be accessed by programs. Message catalogs are created using the gencat and mkcatdefs commands. The gettxt function searches a message catalog for a specified text string. If the text string is available, it is returned. If attempts to retrieve the text string do not succeed, the specified default text string is used.
You can request that messages be displayed in a specific language by setting environment variables. Likewise, you can also change the language in which the messages are displayed by invoking the setlocale function with the appropriate arguments.
To retrieve a text string, the program must use the following format when specifying the msgid parameter:
The arguments are defined as follows: Specifies the message catalog that contains the localized version of the text string. Characters in the text string can be any set of characters excluding null (\0), the ASCII symbols for slash (/), and the colon (:). Specified as a positive number only, this argument denotes the index of the text string in the message catalog.
If the text string specified does not exist in the catalog associated with the locale setting, or if the message number exceeds the bounds of the catalog, attempts are made to retrieve this message from the catalog for the C locale. Should the second attempt be unsuccessful, the text string specified by the dflt_str is used.
The string Message not found!!\n is returned if the value for the msgfilename argument is invalid, a catalog number has not been specified, the value for msgnumber is not a positive number, or a message could not be retrieved and the dflt_str parameter was not specified.
No errors are defined for this function.
On this operating system, the gettxt function parses the directory locale as described on the catopen(3) and catgets(3) reference pages.
Commands: gencat(1), mkcatdefs(1)
Functions: catgets(3), catopen(3) delim off