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Diffstat (limited to 'newlib/libc/sys/linux/iconv/localeinfo.h')
| -rw-r--r-- | newlib/libc/sys/linux/iconv/localeinfo.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/iconv/localeinfo.h b/newlib/libc/sys/linux/iconv/localeinfo.h new file mode 100644 index 000000000..026463ffb --- /dev/null +++ b/newlib/libc/sys/linux/iconv/localeinfo.h @@ -0,0 +1,209 @@ +/* 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 */ |