nl_langinfo

NL_LANGINFO(3)		  Linux Programmer’s Manual	       NL_LANGINFO(3)



NAME
       nl_langinfo - query language and locale information

SYNOPSIS
       #include <langinfo.h>

       char *nl_langinfo(nl_item item);

DESCRIPTION
       The  nl_langinfo	 function  provides access to locale information in a
       more flexible way than localeconv(3) does. Individual  and  additional
       elements of the locale categories can be queried.

       Examples	 for  the locale elements that can be specified in item using
       the constants defined in <langinfo.h> are:


       CODESET (LC_CTYPE)
	      Return a string with the name of the character encoding used in
	      the   selected   locale,	such  as  "UTF-8",  "ISO-8859-1",  or
	      "ANSI_X3.4-1968" (better known as US-ASCII). This is  the	 same
	      string  that you get with "locale charmap". For a list of char-
	      acter encoding names, try "locale -m", cf. locale(1).


       D_T_FMT (LC_TIME)
	      Return a string that can be used as a format string  for	strf-
	      time(3) to represent time and date in a locale-specific way.


       D_FMT (LC_TIME)
	      Return  a	 string that can be used as a format string for strf-
	      time(3) to represent a date in a locale-specific way.


       T_FMT (LC_TIME)
	      Return a string that can be used as a format string  for	strf-
	      time(3) to represent a time in a locale-specific way.


       DAY_{1–7} (LC_TIME)
	      Return name of the n-th day of the week. [Warning: this follows
	      the US convention DAY_1 = Sunday, not the international conven-
	      tion (ISO 8601) that Monday is the first day of the week.]


       ABDAY_{1–7} (LC_TIME)
	      Return abbreviated name of the n-th day of the week.


       MON_{1–12} (LC_TIME)
	      Return name of the n-th month.


       ABMON_{1–12} (LC_TIME)
	      Return abbreviated name of the n-th month.


       RADIXCHAR (LC_NUMERIC)
	      Return radix character (decimal dot, decimal comma, etc.).


       THOUSEP (LC_NUMERIC)
	      Return  separator character for thousands (groups of three dig-
	      its).


       YESEXPR (LC_MESSAGES)
	      Return a regular expression that can be used with the  regex(3)
	      function to recognize a positive response to a yes/no question.


       NOEXPR (LC_MESSAGES)
	      Return a regular expression that can be used with the  regex(3)
	      function to recognize a negative response to a yes/no question.


       CRNCYSTR (LC_MONETARY)
	      Return the currency symbol,  preceded  by	 "-"  if  the  symbol
	      should appear before the value, "+" if the symbol should appear
	      after the value, or "." if the symbol should replace the	radix
	      character.

       The  above  list	 covers	 just  some  examples  of  items  that can be
       requested. For a more detailed list, please consult The GNU C  Library
       Reference Manual.

RETURN VALUE
       If  no locale has been selected for the appropriate category, nl_lang-
       info returns a pointer to the corresponding string in the "C"  locale.

       If item is not valid, a pointer to an empty string is returned.

       This  pointer  may point to static data that may be overwritten on the
       next call to nl_langinfo or setlocale.

CONFORMING TO
       The Single UNIX® Specification, Version 2

SEE ALSO
       localeconv(3), setlocale(3), locale(1),	locale(7),  charsets(7),  The
       GNU C Library Reference Manual



GNU				  2001-05-11		       NL_LANGINFO(3)