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/* Declarations for internal libc locale interfaces Copyright (C) 1995, 96, 97, 98, 99,2000,2001 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #ifndef _LOCALEINFO_H #define _LOCALEINFO_H 1 #include <stddef.h> #include <langinfo.h> #include <limits.h> #include <time.h> #include <stdint.h> #include <sys/types.h> /* This has to be changed whenever a new locale is defined. */ #define __LC_LAST 13 #include "loadinfo.h" /* For loaded_l10nfile definition. */ /* Magic number at the beginning of a locale data file for CATEGORY. */ #define LIMAGIC(category) ((unsigned int) (0x20000828 ^ (category))) /* Two special weight constants for the collation data. */ #define IGNORE_CHAR 2 /* We use a special value for the usage counter in `locale_data' to signal that this data must never be removed anymore. */ #define MAX_USAGE_COUNT (UINT_MAX - 1) #define UNDELETABLE UINT_MAX /* Structure describing locale data in core for a category. */ struct locale_data { const char *name; const char *filedata; /* Region mapping the file data. */ off_t filesize; /* Size of the file (and the region). */ int mmaped; /* If nonzero the data is mmaped. */ unsigned int usage_count; /* Counter for users. */ int use_translit; /* Nonzero if the mb*towv*() and wc*tomb() functions should use transliteration. */ const char *options; /* Extra options from the locale name, not used in the path to the locale data. */ unsigned int nstrings; /* Number of strings below. */ union locale_data_value { const uint32_t *wstr; const char *string; unsigned int word; } values __flexarr; /* Items, usually pointers into `filedata'. */ }; /* We know three kinds of collation sorting rules. */ enum coll_sort_rule { illegal_0__, sort_forward, sort_backward, illegal_3__, sort_position, sort_forward_position, sort_backward_position, sort_mask }; /* We can map the types of the entries into a few categories. */ enum value_type { none, string, stringarray, byte, bytearray, word, stringlist, wordarray, wstring, wstringarray, wstringlist }; /* Definitions for `era' information from LC_TIME. */ #define ERA_NAME_FORMAT_MEMBERS 4 #define ERA_M_NAME 0 #define ERA_M_FORMAT 1 #define ERA_W_NAME 2 #define ERA_W_FORMAT 3 /* Structure to access `era' information from LC_TIME. */ struct era_entry { uint32_t direction; /* Contains '+' or '-'. */ int32_t offset; int32_t start_date[3]; int32_t stop_date[3]; const char *era_name; const char *era_format; const wchar_t *era_wname; const wchar_t *era_wformat; int absolute_direction; /* absolute direction: +1 indicates that year number is higher in the future. (like A.D.) -1 indicates that year number is higher in the past. (like B.C.) */ }; /* LC_CTYPE specific: Hardwired indices for standard wide character translation mappings. */ enum { __TOW_toupper = 0, __TOW_tolower = 1 }; /* LC_CTYPE specific: Access a wide character class with a single character index. _ISCTYPE (c, desc) = iswctype (btowc (c), desc). c must be an `unsigned char'. desc must be a nonzero wctype_t. */ #define _ISCTYPE(c, desc) \ (((((const uint32_t *) (desc)) - 8)[(c) >> 5] >> ((c) & 0x1f)) & 1) /* For each category declare the variable for the current locale data. */ #define DEFINE_CATEGORY(category, category_name, items, a) \ extern struct locale_data *_nl_current_##category; #include "categories.def" #undef DEFINE_CATEGORY extern const char *const _nl_category_names[__LC_LAST]; extern const size_t _nl_category_name_sizes[__LC_LAST]; extern struct locale_data * *const _nl_current[__LC_LAST]; /* Extract the current CATEGORY locale's string for ITEM. */ #define _NL_CURRENT(category, item) \ (_nl_current_##category->values[_NL_ITEM_INDEX (item)].string) /* Extract the current CATEGORY locale's string for ITEM. */ #define _NL_CURRENT_WSTR(category, item) \ ((wchar_t *) (_nl_current_##category->values[_NL_ITEM_INDEX (item)].wstr)) /* Extract the current CATEGORY locale's word for ITEM. */ #define _NL_CURRENT_WORD(category, item) \ (_nl_current_##category->values[_NL_ITEM_INDEX (item)].word) /* This is used in lc-CATEGORY.c to define _nl_current_CATEGORY. */ #define _NL_CURRENT_DEFINE(category) \ extern struct locale_data _nl_C_##category; \ struct locale_data *_nl_current_##category = &_nl_C_##category /* Load the locale data for CATEGORY from the file specified by *NAME. If *NAME is "", use environment variables as specified by POSIX, and fill in *NAME with the actual name used. The directories listed in LOCALE_PATH are searched for the locale files. */ extern struct locale_data *_nl_find_locale (const char *locale_path, size_t locale_path_len, int category, const char **name); /* Try to load the file described by FILE. */ extern void _nl_load_locale (struct loaded_l10nfile *file, int category); /* Free all resource. */ extern void _nl_unload_locale (struct locale_data *locale); /* Free the locale and give back all memory if the usage count is one. */ extern void _nl_remove_locale (int locale, struct locale_data *data); /* Return `era' entry which corresponds to TP. Used in strftime. */ extern struct era_entry *_nl_get_era_entry (const struct tm *tp); /* Return `era' cnt'th entry . Used in strptime. */ extern struct era_entry *_nl_select_era_entry (int cnt); /* Return `alt_digit' which corresponds to NUMBER. Used in strftime. */ extern const char *_nl_get_alt_digit (unsigned int number); /* Similar, but now for wide characters. */ extern const wchar_t *_nl_get_walt_digit (unsigned int number); /* Parse string as alternative digit and return numeric value. */ extern int _nl_parse_alt_digit (const char **strp); /* Postload processing. */ extern void _nl_postload_ctype (void); extern void _nl_postload_time (void); #endif /* localeinfo.h */