nl_scanf man page on Ultrix

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nl_scanf(3int)							nl_scanf(3int)

Name
       nl_scanf, nl_fscanf, nl_sscanf - convert formatted input

Syntax
       #include <stdio.h>

       int nl_scanf ( format [, pointer ] ...  )
       char *format;

       int nl_fscanf ( stream, format [, pointer ] ...	)
       FILE *stream;
       char *format;

       int nl_sscanf ( s, format [, pointer ] ...  )
       char *s, *format;

Description
       The  international  functions  and  are	identical  to  and  have  been
       superceded by the international functions and in libi.  You should  use
       the  and	 functions when you write new calls to convert formatted input
       in international programs. For more information on these functions, see
       the reference page.

       You can continue to use existing calls to the or functions. These func‐
       tions remain available for compatibility with  XPG-2  conformant	 soft‐
       ware, but may not be supported in future releases of the ULTRIX system.

       The  and	 international functions are similar to the standard I/O func‐
       tion. (For more information on the standard I/O function, see reference
       page.)  The difference is that the international functions allow you to
       use the %digit$ conversion character in place of the  %	character  you
       use  in the standard I/O functions. The digit is a decimal digit n from
       1 to 9.	The international functions apply  conversions	to  the	 n  th
       argument in the argument list, rather than to the next unused argument.

       You  can use the % conversion character in the international functions.
       However, you cannot mix the % conversion	 character  with  the  %digit$
       conversion character in a single call.

   International Environment
       LC_NUMERIC     If  this environment is set and valid, uses the interna‐
		      tional language database	named  in  the	definition  to
		      determine radix character rules.

       LANG	      If  this	environment variable is set and valid uses the
		      international language database named in the  definition
		      to  determine  collation	and  character	classification
		      rules.  If is defined,  its  definition  supersedes  the
		      definition of LANG.

Restrictions
       The (libc) has been updated.  The %n code now processes even if no fur‐
       ther input remains to be scanned.

Examples
       The following shows an example of using the function:
       nl_scanf("%2$s %1$d", integer, string)
       If the input contains `` january 9 '', the function assigns 9 to	 inte‐
       ger and ``january'' to string .

Return Values
       These functions return either the number of items matched or EOF on end
       of input, along with the number of missing or invalid  data items.

See Also
       intro(3int),  setlocale(3),  strtod(3),	 strtol(3),   nl_printf(3int),
       printf(3int), scanf(3int), getc(3s), printf(3s), scanf(3s)
       Guide to Developing International Software

								nl_scanf(3int)
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