NL_LANGINFO(3) FreeBSD Library Functions Manual NL_LANGINFO(3)
NAME
nl_langinfo - language information
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <langinfo.h>
char *
nl_langinfo(nl_item item);
char *
nl_langinfo_l(nl_item item, locale_t loc);
DESCRIPTION
The nl_langinfo() function returns a pointer to a string containing
information relevant to the particular language or cultural area defined
in the program or thread's locale, or in the case of nl_langinfo_l(), the
locale passed as the second argument.
Calls to setlocale() with a category corresponding to the category of
item, or to the category LC_ALL, may overwrite the buffer pointed to by
the return value.
The manifest constant names and values of item are defined in
<langinfo.h>.
The following standard constants are recognized:
Constant Category Description
CODESET LC_CTYPE codeset name
D_T_FMT LC_TIME string for formatting date and time
D_FMT LC_TIME date format string
T_FMT LC_TIME time format string
T_FMT_AMPM LC_TIME a.m. or p.m. time format string
AM_STR LC_TIME ante-meridiem affix
PM_STR LC_TIME post-meridiem affix
DAY_1 LC_TIME name of the first day of the week
DAY_2 LC_TIME name of the second day of the week
DAY_3 LC_TIME name of the third day of the week
DAY_4 LC_TIME name of the fourth day of the week
DAY_5 LC_TIME name of the fifth day of the week
DAY_6 LC_TIME name of the sixth day of the week
DAY_7 LC_TIME name of the seventh day of the week
ABDAY_1 LC_TIME abbreviated name of the first day of the week
ABDAY_2 LC_TIME abbreviated name of the second day of the week
ABDAY_3 LC_TIME abbreviated name of the third day of the week
ABDAY_4 LC_TIME abbreviated name of the fourth day of the week
ABDAY_5 LC_TIME abbreviated name of the fifth day of the week
ABDAY_6 LC_TIME abbreviated name of the sixth day of the week
ABDAY_7 LC_TIME abbreviated name of the seventh day of the week
MON_1 LC_TIME name of the first month of the year
MON_2 LC_TIME name of the second month
MON_3 LC_TIME name of the third month
MON_4 LC_TIME name of the fourth month
MON_5 LC_TIME name of the fifth month
MON_6 LC_TIME name of the sixth month
MON_7 LC_TIME name of the seventh month
MON_8 LC_TIME name of the eighth month
MON_9 LC_TIME name of the ninth month
MON_10 LC_TIME name of the tenth month
MON_11 LC_TIME name of the eleventh month
MON_12 LC_TIME name of the twelfth month
ABMON_1 LC_TIME abbreviated name of the first month
ABMON_2 LC_TIME abbreviated name of the second month
ABMON_3 LC_TIME abbreviated name of the third month
ABMON_4 LC_TIME abbreviated name of the fourth month
ABMON_5 LC_TIME abbreviated name of the fifth month
ABMON_6 LC_TIME abbreviated name of the sixth month
ABMON_7 LC_TIME abbreviated name of the seventh month
ABMON_8 LC_TIME abbreviated name of the eighth month
ABMON_9 LC_TIME abbreviated name of the ninth month
ABMON_10 LC_TIME abbreviated name of the tenth month
ABMON_11 LC_TIME abbreviated name of the eleventh month
ABMON_12 LC_TIME abbreviated name of the twelfth month
ERA LC_TIME era description segments
ERA_D_FMT LC_TIME era date format string
ERA_D_T_FMT LC_TIME era date and time format string
ERA_T_FMT LC_TIME era time format string
ALT_DIGITS LC_TIME alternative symbols for digits
RADIXCHAR LC_NUMERIC radix character
THOUSEP LC_NUMERIC separator for thousands
YESEXPR LC_MESSAGES affirmative response extended regular expression
NOEXPR LC_MESSAGES negative response extended regular expression
CRNCYSTR LC_MONETARY local 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; if
the local currency symbol is the empty string,
implementations may return the empty string ("")
The following non-standard FreeBSD extensions are recognized:
Constant Category Description
D_MD_ORDER LC_TIME month/day order
ALTMON_1 LC_TIME standalone name of the first month
ALTMON_2 LC_TIME standalone name of the second month
ALTMON_3 LC_TIME standalone name of the third month
ALTMON_4 LC_TIME standalone name of the fourth month
ALTMON_5 LC_TIME standalone name of the fifth month
ALTMON_6 LC_TIME standalone name of the sixth month
ALTMON_7 LC_TIME standalone name of the seventh month
ALTMON_8 LC_TIME standalone name of the eighth month
ALTMON_9 LC_TIME standalone name of the ninth month
ALTMON_10 LC_TIME standalone name of the tenth month
ALTMON_11 LC_TIME standalone name of the eleventh month
ALTMON_12 LC_TIME standalone name of the twelfth month
YESSTR LC_MESSAGES affirmative response string
NOSTR LC_MESSAGES negative response string
RETURN VALUES
In a locale where langinfo data is not defined, nl_langinfo() returns a
pointer to the corresponding string in the POSIX locale. nl_langinfo_l()
returns the same values as nl_langinfo(). In all locales, nl_langinfo()
returns a pointer to an empty string if item contains an invalid setting.
EXAMPLES
For example:
nl_langinfo(ABDAY_1)
would return a pointer to the string "Dom" if the identified language was
Portuguese, and "Sun" if the identified language was English.
SEE ALSO
setlocale(3)
STANDARDS
The nl_langinfo() function conforms to Version 2 of the Single UNIX
Specification ("SUSv2"). The nl_langinfo_l() function conforms to IEEE
Std 1003.1-2008 ("POSIX.1").
HISTORY
The nl_langinfo() function first appeared in FreeBSD 4.6.
FreeBSD 13.1-RELEASE-p6 December 14, 2020 FreeBSD 13.1-RELEASE-p6
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