константы языковой информации (language information constants)
Описание (Description)
The <langinfo.h> header shall define the symbolic constants used
to identify items of langinfo data (see nl_langinfo()).
The <langinfo.h> header shall define the locale_t type as
described in <locale.h>.
The <langinfo.h> header shall define the nl_item type as
described in <nl_types.h>.
The <langinfo.h> header shall define the following symbolic
constants with type nl_item. The entries under Category indicate
in which setlocale() category each item is defined.
┌───────────┬───────────┬───────────────────────────────────────────────────────────┐
│ Constant │ Category │ Meaning │
├───────────┼───────────┼───────────────────────────────────────────────────────────┤
│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 (for example, Sunday). │
│DAY_2 │LC_TIME │Name of the second day of the week (for example, Monday). │
│DAY_3 │LC_TIME │Name of the third day of the week (for example, Tuesday). │
│DAY_4 │LC_TIME │Name of the fourth day of the week │
│ │ │(for example, Wednesday). │
│DAY_5 │LC_TIME │Name of the fifth day of the week (for example, Thursday). │
│DAY_6 │LC_TIME │Name of the sixth day of the week (for example, Friday). │
│DAY_7 │LC_TIME │Name of the seventh day of the week │
│ │ │(for example, Saturday). │
│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 expression. │
│NOEXPR │LC_MESSAGES│Negative response 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 (""). │
└───────────┴───────────┴───────────────────────────────────────────────────────────┘
If the locale's values for p_cs_precedes and n_cs_precedes do not
match, the value of nl_langinfo(CRNCYSTR) and
nl_langinfo_l(CRNCYSTR,loc) is unspecified.
The following shall be declared as a function and may also be
defined as a macro. A function prototype shall be provided.
char *nl_langinfo(nl_item);
char *nl_langinfo_l(nl_item, locale_t);
Inclusion of the <langinfo.h> header may also make visible all
symbols from <nl_types.h>.
The following sections are informative.
