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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
              character 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
              strftime(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
              strftime(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
              strftime(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
              convention (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
              digits).

       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_langinfo() 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

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