1032 lines
28 KiB
C
1032 lines
28 KiB
C
/*
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FUNCTION
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<<setlocale>>, <<localeconv>>---select or query locale
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INDEX
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setlocale
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INDEX
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localeconv
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INDEX
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_setlocale_r
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INDEX
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_localeconv_r
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SYNOPSIS
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#include <locale.h>
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char *setlocale(int <[category]>, const char *<[locale]>);
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lconv *localeconv(void);
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char *_setlocale_r(void *<[reent]>,
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int <[category]>, const char *<[locale]>);
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lconv *_localeconv_r(void *<[reent]>);
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DESCRIPTION
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<<setlocale>> is the facility defined by ANSI C to condition the
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execution environment for international collating and formatting
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information; <<localeconv>> reports on the settings of the current
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locale.
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This is a minimal implementation, supporting only the required <<"POSIX">>
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and <<"C">> values for <[locale]>; strings representing other locales are not
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honored unless _MB_CAPABLE is defined.
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If _MB_CAPABLE is defined, POSIX locale strings are allowed, following
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the form
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language[_TERRITORY][.charset][@@modifier]
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<<"language">> is a two character string per ISO 639, or, if not available
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for a given language, a three character string per ISO 639-3.
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<<"TERRITORY">> is a country code per ISO 3166. For <<"charset">> and
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<<"modifier">> see below.
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Additionally to the POSIX specifier, the following extension is supported
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for backward compatibility with older implementations using newlib:
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<<"C-charset">>.
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Instead of <<"C-">>, you can also specify <<"C.">>. Both variations allow
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to specify language neutral locales while using other charsets than ASCII,
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for instance <<"C.UTF-8">>, which keeps all settings as in the C locale,
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but uses the UTF-8 charset.
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The following charsets are recognized:
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<<"UTF-8">>, <<"JIS">>, <<"EUCJP">>, <<"SJIS">>, <<"KOI8-R">>, <<"KOI8-U">>,
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<<"KOI8-T">>, <<"GEORGIAN-PS">>, <<"PT154">>, <<"TIS-620">>, <<"ISO-8859-x">>
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with 1 <= x <= 16, or <<"CPxxx">> with xxx in [437, 720, 737, 775, 850, 852,
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855, 857, 858, 862, 866, 874, 932, 1125, 1250, 1251, 1252, 1253, 1254, 1255,
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1256, 1257, 1258].
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Charsets are case insensitive. For instance, <<"EUCJP">> and <<"eucJP">>
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are equivalent. Charset names with dashes can also be written without
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dashes, as in <<"UTF8">>, <<"iso88591">> or <<"koi8r">>. <<"EUCJP">> and
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<<"EUCKR">> are also recognized with dash, <<"EUC-JP">> and <<"EUC-KR">>.
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Full support for all of the above charsets requires that newlib has been
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build with multibyte support and support for all ISO and Windows Codepage.
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Otherwise all singlebyte charsets are simply mapped to ASCII. Right now,
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only newlib for Cygwin is built with full charset support by default.
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Under Cygwin, this implementation additionally supports the charsets
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<<"GB18030">>, <<"GBK">>, <<"GB2312">>, <<"eucCN">>, <<"eucKR">>, and
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<<"Big5">>. Cygwin does not support <<"JIS">>.
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Cygwin additionally supports locales from the file
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/usr/share/locale/locale.alias.
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(<<"">> is also accepted; if given, the settings are read from the
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corresponding LC_* environment variables and $LANG according to POSIX rules.)
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This implementation also supports the modifiers <<"cjknarrow">> and
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<<"cjkwide">>, which affect how the functions <<wcwidth>> and <<wcswidth>>
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handle characters from the "CJK Ambiguous Width" category of characters
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described at http://www.unicode.org/reports/tr11/#Ambiguous.
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These characters have a width of 1 for singlebyte charsets and UTF-8,
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and a width of 2 for multibyte charsets other than UTF-8. Specifying
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<<"cjknarrow">> or <<"cjkwide">> forces a width of 1 or 2, respectively.
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This implementation also supports the modifier <<"cjksingle">>
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to enforce single-width character properties.
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If you use <<NULL>> as the <[locale]> argument, <<setlocale>> returns a
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pointer to the string representing the current locale. The acceptable
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values for <[category]> are defined in `<<locale.h>>' as macros
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beginning with <<"LC_">>.
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<<localeconv>> returns a pointer to a structure (also defined in
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`<<locale.h>>') describing the locale-specific conventions currently
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in effect.
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<<_localeconv_r>> and <<_setlocale_r>> are reentrant versions of
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<<localeconv>> and <<setlocale>> respectively. The extra argument
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<[reent]> is a pointer to a reentrancy structure.
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RETURNS
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A successful call to <<setlocale>> returns a pointer to a string
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associated with the specified category for the new locale. The string
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returned by <<setlocale>> is such that a subsequent call using that
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string will restore that category (or all categories in case of LC_ALL),
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to that state. The application shall not modify the string returned
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which may be overwritten by a subsequent call to <<setlocale>>.
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On error, <<setlocale>> returns <<NULL>>.
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<<localeconv>> returns a pointer to a structure of type <<lconv>>,
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which describes the formatting and collating conventions in effect (in
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this implementation, always those of the C locale).
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PORTABILITY
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ANSI C requires <<setlocale>>, but the only locale required across all
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implementations is the C locale.
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NOTES
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There is no ISO-8859-12 codepage. It's also refused by this implementation.
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No supporting OS subroutines are required.
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*/
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/* Parts of this code are originally taken from FreeBSD. */
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/*
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* Copyright (c) 1996 - 2002 FreeBSD Project
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Paul Borman at Krystal Technologies.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <newlib.h>
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#include <errno.h>
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#include <string.h>
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#include <limits.h>
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#include <reent.h>
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#include <stdlib.h>
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#include <wchar.h>
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#include "setlocale.h"
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#include "../ctype/ctype_.h"
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#include "../stdlib/local.h"
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#ifdef _REENT_THREAD_LOCAL
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_Thread_local struct __locale_t *_tls_locale;
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#endif
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#ifdef __CYGWIN__ /* Has to be kept available as exported symbol for
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backward compatibility. Set it in setlocale, but
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otherwise ignore it. Applications compiled after
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2010 don't use it anymore. */
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int __EXPORT __mb_cur_max = 6;
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#endif
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char *_PathLocale = NULL;
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#ifdef _MB_CAPABLE
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/*
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* Category names for getenv()
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*/
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static char *categories[_LC_LAST] = {
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"LC_ALL",
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"LC_COLLATE",
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"LC_CTYPE",
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"LC_MONETARY",
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"LC_NUMERIC",
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"LC_TIME",
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"LC_MESSAGES",
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};
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#endif /* _MB_CAPABLE */
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/*
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* Default locale per POSIX. Can be overridden on a per-target base.
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*/
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#ifndef DEFAULT_LOCALE
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#define DEFAULT_LOCALE "C"
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#endif
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#ifdef _MB_CAPABLE
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/*
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* This variable can be changed by any outside mechanism. This allows,
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* for instance, to load the default locale from a file.
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*/
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char __default_locale[ENCODING_LEN + 1] = DEFAULT_LOCALE;
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const struct __locale_t __C_locale =
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{
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{ "C", "C", "C", "C", "C", "C", "C", },
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__ascii_wctomb,
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__ascii_mbtowc,
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0,
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DEFAULT_CTYPE_PTR,
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{
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".", "", "", "", "", "", "", "", "", "",
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CHAR_MAX, CHAR_MAX, CHAR_MAX, CHAR_MAX,
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CHAR_MAX, CHAR_MAX, CHAR_MAX, CHAR_MAX,
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CHAR_MAX, CHAR_MAX, CHAR_MAX, CHAR_MAX,
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CHAR_MAX, CHAR_MAX
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},
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#ifndef __HAVE_LOCALE_INFO__
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"\1",
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"ASCII",
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"ASCII",
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#else /* __HAVE_LOCALE_INFO__ */
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{
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{ NULL, NULL }, /* LC_ALL */
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#ifdef __CYGWIN__
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{ &_C_collate_locale, NULL }, /* LC_COLLATE */
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#else
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{ NULL, NULL }, /* LC_COLLATE */
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#endif
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{ &_C_ctype_locale, NULL }, /* LC_CTYPE */
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{ &_C_monetary_locale, NULL }, /* LC_MONETARY */
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{ &_C_numeric_locale, NULL }, /* LC_NUMERIC */
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{ &_C_time_locale, NULL }, /* LC_TIME */
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{ &_C_messages_locale, NULL }, /* LC_MESSAGES */
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},
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#endif /* __HAVE_LOCALE_INFO__ */
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};
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#endif /* _MB_CAPABLE */
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struct __locale_t __global_locale =
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{
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{ "C", "C", DEFAULT_LOCALE, "C", "C", "C", "C", },
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#ifdef __CYGWIN__
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__utf8_wctomb,
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__utf8_mbtowc,
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#else
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__ascii_wctomb,
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__ascii_mbtowc,
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#endif
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0,
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DEFAULT_CTYPE_PTR,
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{
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".", "", "", "", "", "", "", "", "", "",
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CHAR_MAX, CHAR_MAX, CHAR_MAX, CHAR_MAX,
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CHAR_MAX, CHAR_MAX, CHAR_MAX, CHAR_MAX,
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CHAR_MAX, CHAR_MAX, CHAR_MAX, CHAR_MAX,
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CHAR_MAX, CHAR_MAX
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},
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#ifndef __HAVE_LOCALE_INFO__
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"\1",
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"ASCII",
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"ASCII",
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#else /* __HAVE_LOCALE_INFO__ */
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{
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{ NULL, NULL }, /* LC_ALL */
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#ifdef __CYGWIN__
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{ &_C_collate_locale, NULL }, /* LC_COLLATE */
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{ &_C_utf8_ctype_locale, NULL }, /* LC_CTYPE */
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#else
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{ NULL, NULL }, /* LC_COLLATE */
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{ &_C_ctype_locale, NULL }, /* LC_CTYPE */
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#endif
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{ &_C_monetary_locale, NULL }, /* LC_MONETARY */
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{ &_C_numeric_locale, NULL }, /* LC_NUMERIC */
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{ &_C_time_locale, NULL }, /* LC_TIME */
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{ &_C_messages_locale, NULL }, /* LC_MESSAGES */
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},
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#endif /* __HAVE_LOCALE_INFO__ */
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};
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#ifdef _MB_CAPABLE
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/* Renamed from current_locale_string to make clear this is only the
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*global* string for setlocale (LC_ALL, NULL). There's no equivalent
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functionality for uselocale. */
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static char global_locale_string[_LC_LAST * (ENCODING_LEN + 1/*"/"*/ + 1)]
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= "C";
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static char *currentlocale (void);
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#endif /* _MB_CAPABLE */
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char *
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_setlocale_r (struct _reent *p,
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int category,
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const char *locale)
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{
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#ifndef _MB_CAPABLE
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if (locale)
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{
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if (strcmp (locale, "POSIX") && strcmp (locale, "C")
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&& strcmp (locale, ""))
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return NULL;
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}
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return "C";
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#else /* _MB_CAPABLE */
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static char new_categories[_LC_LAST][ENCODING_LEN + 1];
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static char saved_categories[_LC_LAST][ENCODING_LEN + 1];
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int i, j, len, saverr;
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const char *env, *r;
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char *ret;
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if (category < LC_ALL || category >= _LC_LAST)
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{
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_REENT_ERRNO(p) = EINVAL;
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return NULL;
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}
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if (locale == NULL)
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return category != LC_ALL ? __get_global_locale ()->categories[category]
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: global_locale_string;
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/*
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* Default to the current locale for everything.
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*/
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for (i = 1; i < _LC_LAST; ++i)
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strcpy (new_categories[i], __get_global_locale ()->categories[i]);
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/*
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* Now go fill up new_categories from the locale argument
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*/
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if (!*locale)
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{
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if (category == LC_ALL)
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{
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for (i = 1; i < _LC_LAST; ++i)
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{
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env = __get_locale_env (p, i);
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if (strlen (env) > ENCODING_LEN)
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{
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_REENT_ERRNO(p) = EINVAL;
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return NULL;
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}
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strcpy (new_categories[i], env);
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}
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}
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else
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{
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env = __get_locale_env (p, category);
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if (strlen (env) > ENCODING_LEN)
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{
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_REENT_ERRNO(p) = EINVAL;
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return NULL;
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}
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strcpy (new_categories[category], env);
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}
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}
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else if (category != LC_ALL)
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{
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if (strlen (locale) > ENCODING_LEN)
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{
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_REENT_ERRNO(p) = EINVAL;
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return NULL;
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}
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strcpy (new_categories[category], locale);
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}
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else
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{
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if ((r = strchr (locale, '/')) == NULL)
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{
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if (strlen (locale) > ENCODING_LEN)
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{
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_REENT_ERRNO(p) = EINVAL;
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return NULL;
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}
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for (i = 1; i < _LC_LAST; ++i)
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strcpy (new_categories[i], locale);
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}
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else
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{
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for (i = 1; r[1] == '/'; ++r)
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;
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if (!r[1])
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{
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_REENT_ERRNO(p) = EINVAL;
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return NULL; /* Hmm, just slashes... */
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}
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do
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{
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if (i == _LC_LAST)
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break; /* Too many slashes... */
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if ((len = r - locale) > ENCODING_LEN)
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{
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_REENT_ERRNO(p) = EINVAL;
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return NULL;
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}
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strlcpy (new_categories[i], locale, len + 1);
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i++;
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while (*r == '/')
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r++;
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locale = r;
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while (*r && *r != '/')
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r++;
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}
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while (*locale);
|
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while (i < _LC_LAST)
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{
|
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strcpy (new_categories[i], new_categories[i-1]);
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i++;
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}
|
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}
|
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}
|
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|
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if (category != LC_ALL)
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{
|
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ret = __loadlocale (__get_global_locale (), category,
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new_categories[category]);
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currentlocale ();
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return ret;
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}
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|
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for (i = 1; i < _LC_LAST; ++i)
|
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{
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strcpy (saved_categories[i], __get_global_locale ()->categories[i]);
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if (__loadlocale (__get_global_locale (), i, new_categories[i]) == NULL)
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{
|
|
saverr = _REENT_ERRNO(p);
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for (j = 1; j < i; j++)
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{
|
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strcpy (new_categories[j], saved_categories[j]);
|
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if (__loadlocale (__get_global_locale (), j, new_categories[j])
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== NULL)
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{
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strcpy (new_categories[j], "C");
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__loadlocale (__get_global_locale (), j, new_categories[j]);
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}
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}
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_REENT_ERRNO(p) = saverr;
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return NULL;
|
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}
|
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}
|
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return currentlocale ();
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#endif /* _MB_CAPABLE */
|
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}
|
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|
|
#ifdef _MB_CAPABLE
|
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static char *
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currentlocale ()
|
|
{
|
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int i;
|
|
|
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strcpy (global_locale_string, __get_global_locale ()->categories[1]);
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|
|
|
for (i = 2; i < _LC_LAST; ++i)
|
|
if (strcmp (__get_global_locale ()->categories[1],
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__get_global_locale ()->categories[i]))
|
|
{
|
|
for (i = 2; i < _LC_LAST; ++i)
|
|
{
|
|
(void)strcat(global_locale_string, "/");
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|
(void)strcat(global_locale_string,
|
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__get_global_locale ()->categories[i]);
|
|
}
|
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break;
|
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}
|
|
return global_locale_string;
|
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}
|
|
|
|
extern void __set_ctype (struct __locale_t *, const char *charset);
|
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|
|
char *
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__loadlocale (struct __locale_t *loc, int category, char *new_locale)
|
|
{
|
|
/* At this point a full-featured system would just load the locale
|
|
specific data from the locale files.
|
|
What we do here for now is to check the incoming string for correctness.
|
|
The string must be in one of the allowed locale strings, either
|
|
one in POSIX-style, or one in the old newlib style to maintain
|
|
backward compatibility. If the local string is correct, the charset
|
|
is extracted and stored in ctype_codeset or message_charset
|
|
dependent on the cateogry. */
|
|
char *locale = NULL;
|
|
char charset[ENCODING_LEN + 1];
|
|
long val = 0;
|
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char *end, *c = NULL;
|
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int mbc_max;
|
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wctomb_p l_wctomb;
|
|
mbtowc_p l_mbtowc;
|
|
int cjksingle = 0;
|
|
int cjknarrow = 0;
|
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int cjkwide = 0;
|
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|
|
/* Avoid doing everything twice if nothing has changed.
|
|
|
|
duplocale relies on this test to go wrong so the locale is actually
|
|
duplicated when required. Any change here has to be synced with a
|
|
matching change in duplocale. */
|
|
if (!strcmp (new_locale, loc->categories[category]))
|
|
return loc->categories[category];
|
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|
|
#ifdef __CYGWIN__
|
|
/* This additional code handles the case that the incoming locale string
|
|
is not valid. If so, it calls the function __set_locale_from_locale_alias,
|
|
which is only available on Cygwin right now. The function reads the
|
|
file /usr/share/locale/locale.alias. The file contains locale aliases
|
|
and their replacement locale. For instance, the alias "french" is
|
|
translated to "fr_FR.ISO-8859-1", the alias "thai" is translated to
|
|
"th_TH.TIS-620". If successful, the function returns with a pointer
|
|
to the second argument, which is a buffer in which the replacement locale
|
|
gets stored. Otherwise the function returns NULL. */
|
|
char tmp_locale[ENCODING_LEN + 1];
|
|
int ret = 0;
|
|
|
|
restart:
|
|
if (!locale)
|
|
locale = new_locale;
|
|
else if (locale != tmp_locale)
|
|
{
|
|
locale = __set_locale_from_locale_alias (locale, tmp_locale);
|
|
if (!locale)
|
|
return NULL;
|
|
}
|
|
# define FAIL goto restart
|
|
#else
|
|
locale = new_locale;
|
|
# define FAIL return NULL
|
|
#endif
|
|
|
|
/* "POSIX" is translated to "C", as on Linux. */
|
|
if (!strcmp (locale, "POSIX"))
|
|
strcpy (locale, "C");
|
|
if (!strcmp (locale, "C")) /* Default "C" locale */
|
|
strcpy (charset, "ASCII");
|
|
else if (locale[0] == 'C'
|
|
&& (locale[1] == '-' /* Old newlib style */
|
|
|| locale[1] == '.')) /* Extension for the C locale to allow
|
|
specifying different charsets while
|
|
sticking to the C locale in terms
|
|
of sort order, etc. Proposed in
|
|
the Debian project. */
|
|
{
|
|
char *chp;
|
|
|
|
c = locale + 2;
|
|
strcpy (charset, c);
|
|
if ((chp = strchr (charset, '@')))
|
|
/* Strip off modifier */
|
|
*chp = '\0';
|
|
c += strlen (charset);
|
|
}
|
|
else /* POSIX style */
|
|
{
|
|
c = locale;
|
|
|
|
/* Don't use ctype macros here, they might be localized. */
|
|
/* Language */
|
|
if (c[0] < 'a' || c[0] > 'z'
|
|
|| c[1] < 'a' || c[1] > 'z')
|
|
FAIL;
|
|
c += 2;
|
|
/* Allow three character Language per ISO 639-3 */
|
|
if (c[0] >= 'a' && c[0] <= 'z')
|
|
++c;
|
|
if (c[0] == '_')
|
|
{
|
|
/* Territory */
|
|
++c;
|
|
if (c[0] < 'A' || c[0] > 'Z'
|
|
|| c[1] < 'A' || c[1] > 'Z')
|
|
FAIL;
|
|
c += 2;
|
|
}
|
|
if (c[0] == '.')
|
|
{
|
|
/* Charset */
|
|
char *chp;
|
|
|
|
++c;
|
|
strcpy (charset, c);
|
|
if ((chp = strchr (charset, '@')))
|
|
/* Strip off modifier */
|
|
*chp = '\0';
|
|
c += strlen (charset);
|
|
}
|
|
else if (c[0] == '\0' || c[0] == '@')
|
|
/* End of string or just a modifier */
|
|
#ifdef __CYGWIN__
|
|
/* The Cygwin-only function __set_charset_from_locale checks
|
|
for the default charset which is connected to the given locale.
|
|
The function uses Windows functions in turn so it can't be easily
|
|
adapted to other targets. However, if any other target provides
|
|
equivalent functionality, preferrably using the same function name
|
|
it would be sufficient to change the guarding #ifdef. */
|
|
__set_charset_from_locale (locale, charset);
|
|
#else
|
|
strcpy (charset, "ISO-8859-1");
|
|
#endif
|
|
else
|
|
/* Invalid string */
|
|
FAIL;
|
|
}
|
|
if (c && c[0] == '@')
|
|
{
|
|
/* Modifier "cjksingle" is recognized to enforce single-width mode. */
|
|
/* Modifiers "cjknarrow" or "cjkwide" are recognized to modify the
|
|
behaviour of wcwidth() and wcswidth() for East Asian languages.
|
|
For details see the comment at the end of this function. */
|
|
if (!strcmp (c + 1, "cjksingle"))
|
|
cjksingle = 1;
|
|
else if (!strcmp (c + 1, "cjknarrow"))
|
|
cjknarrow = 1;
|
|
else if (!strcmp (c + 1, "cjkwide"))
|
|
cjkwide = 1;
|
|
}
|
|
/* We only support this subset of charsets. */
|
|
switch (charset[0])
|
|
{
|
|
case 'U':
|
|
case 'u':
|
|
if (strcasecmp (charset, "UTF-8") && strcasecmp (charset, "UTF8"))
|
|
FAIL;
|
|
strcpy (charset, "UTF-8");
|
|
mbc_max = 6;
|
|
l_wctomb = __utf8_wctomb;
|
|
l_mbtowc = __utf8_mbtowc;
|
|
break;
|
|
#ifndef __CYGWIN__
|
|
/* Cygwin does not support JIS at all. */
|
|
case 'J':
|
|
case 'j':
|
|
if (strcasecmp (charset, "JIS"))
|
|
FAIL;
|
|
strcpy (charset, "JIS");
|
|
mbc_max = 8;
|
|
l_wctomb = __jis_wctomb;
|
|
l_mbtowc = __jis_mbtowc;
|
|
break;
|
|
#endif /* !__CYGWIN__ */
|
|
case 'E':
|
|
case 'e':
|
|
if (strncasecmp (charset, "EUC", 3))
|
|
FAIL;
|
|
c = charset + 3;
|
|
if (*c == '-')
|
|
++c;
|
|
if (!strcasecmp (c, "JP"))
|
|
{
|
|
strcpy (charset, "EUCJP");
|
|
mbc_max = 3;
|
|
l_wctomb = __eucjp_wctomb;
|
|
l_mbtowc = __eucjp_mbtowc;
|
|
}
|
|
#ifdef __CYGWIN__
|
|
/* Newlib does neither provide EUC-KR nor EUC-CN, and Cygwin's
|
|
implementation requires Windows support. */
|
|
else if (!strcasecmp (c, "KR"))
|
|
{
|
|
strcpy (charset, "EUCKR");
|
|
mbc_max = 2;
|
|
l_wctomb = __kr_wctomb;
|
|
l_mbtowc = __kr_mbtowc;
|
|
}
|
|
else if (!strcasecmp (c, "CN"))
|
|
{
|
|
strcpy (charset, "EUCCN");
|
|
mbc_max = 2;
|
|
l_wctomb = __gbk_wctomb;
|
|
l_mbtowc = __gbk_mbtowc;
|
|
}
|
|
#endif /* __CYGWIN__ */
|
|
else
|
|
FAIL;
|
|
break;
|
|
case 'S':
|
|
case 's':
|
|
if (strcasecmp (charset, "SJIS"))
|
|
FAIL;
|
|
strcpy (charset, "SJIS");
|
|
mbc_max = 2;
|
|
l_wctomb = __sjis_wctomb;
|
|
l_mbtowc = __sjis_mbtowc;
|
|
break;
|
|
case 'I':
|
|
case 'i':
|
|
/* Must be exactly one of ISO-8859-1, [...] ISO-8859-16, except for
|
|
ISO-8859-12. This code also recognizes the aliases without dashes. */
|
|
if (strncasecmp (charset, "ISO", 3))
|
|
FAIL;
|
|
c = charset + 3;
|
|
if (*c == '-')
|
|
++c;
|
|
if (strncasecmp (c, "8859", 4))
|
|
FAIL;
|
|
c += 4;
|
|
if (*c == '-')
|
|
++c;
|
|
val = strtol (c, &end, 10);
|
|
if (val < 1 || val > 16 || val == 12 || *end)
|
|
FAIL;
|
|
strcpy (charset, "ISO-8859-");
|
|
c = charset + 9;
|
|
if (val > 10)
|
|
*c++ = '1';
|
|
*c++ = val % 10 + '0';
|
|
*c = '\0';
|
|
mbc_max = 1;
|
|
#ifdef _MB_EXTENDED_CHARSETS_ISO
|
|
l_wctomb = __iso_wctomb (val);
|
|
l_mbtowc = __iso_mbtowc (val);
|
|
#else /* !_MB_EXTENDED_CHARSETS_ISO */
|
|
l_wctomb = __ascii_wctomb;
|
|
l_mbtowc = __ascii_mbtowc;
|
|
#endif /* _MB_EXTENDED_CHARSETS_ISO */
|
|
break;
|
|
case 'C':
|
|
case 'c':
|
|
if (charset[1] != 'P' && charset[1] != 'p')
|
|
FAIL;
|
|
strncpy (charset, "CP", 2);
|
|
val = strtol (charset + 2, &end, 10);
|
|
if (*end)
|
|
FAIL;
|
|
switch (val)
|
|
{
|
|
case 437:
|
|
case 720:
|
|
case 737:
|
|
case 775:
|
|
case 850:
|
|
case 852:
|
|
case 855:
|
|
case 857:
|
|
case 858:
|
|
case 862:
|
|
case 866:
|
|
case 874:
|
|
case 1125:
|
|
case 1250:
|
|
case 1251:
|
|
case 1252:
|
|
case 1253:
|
|
case 1254:
|
|
case 1255:
|
|
case 1256:
|
|
case 1257:
|
|
case 1258:
|
|
mbc_max = 1;
|
|
#ifdef _MB_EXTENDED_CHARSETS_WINDOWS
|
|
l_wctomb = __cp_wctomb (val);
|
|
l_mbtowc = __cp_mbtowc (val);
|
|
#else /* !_MB_EXTENDED_CHARSETS_WINDOWS */
|
|
l_wctomb = __ascii_wctomb;
|
|
l_mbtowc = __ascii_mbtowc;
|
|
#endif /* _MB_EXTENDED_CHARSETS_WINDOWS */
|
|
break;
|
|
case 932:
|
|
mbc_max = 2;
|
|
l_wctomb = __sjis_wctomb;
|
|
l_mbtowc = __sjis_mbtowc;
|
|
break;
|
|
default:
|
|
FAIL;
|
|
}
|
|
break;
|
|
case 'K':
|
|
case 'k':
|
|
/* KOI8-R, KOI8-U, KOI8-T and the aliases without dash */
|
|
if (strncasecmp (charset, "KOI8", 4))
|
|
FAIL;
|
|
c = charset + 4;
|
|
if (*c == '-')
|
|
++c;
|
|
if (*c == 'R' || *c == 'r')
|
|
{
|
|
val = 20866;
|
|
strcpy (charset, "CP20866");
|
|
}
|
|
else if (*c == 'U' || *c == 'u')
|
|
{
|
|
val = 21866;
|
|
strcpy (charset, "CP21866");
|
|
}
|
|
else if (*c == 'T' || *c == 't')
|
|
{
|
|
val = 103;
|
|
strcpy (charset, "CP103");
|
|
}
|
|
else
|
|
FAIL;
|
|
mbc_max = 1;
|
|
#ifdef _MB_EXTENDED_CHARSETS_WINDOWS
|
|
l_wctomb = __cp_wctomb (val);
|
|
l_mbtowc = __cp_mbtowc (val);
|
|
#else /* !_MB_EXTENDED_CHARSETS_WINDOWS */
|
|
l_wctomb = __ascii_wctomb;
|
|
l_mbtowc = __ascii_mbtowc;
|
|
#endif /* _MB_EXTENDED_CHARSETS_WINDOWS */
|
|
break;
|
|
case 'A':
|
|
case 'a':
|
|
if (strcasecmp (charset, "ASCII"))
|
|
FAIL;
|
|
strcpy (charset, "ASCII");
|
|
mbc_max = 1;
|
|
l_wctomb = __ascii_wctomb;
|
|
l_mbtowc = __ascii_mbtowc;
|
|
break;
|
|
case 'G':
|
|
case 'g':
|
|
#ifdef __CYGWIN__
|
|
/* Newlib does not provide GBK/GB2312 and Cygwin's implementation
|
|
requires Windows support. */
|
|
if (!strcasecmp (charset, "GBK")
|
|
|| !strcasecmp (charset, "GB2312"))
|
|
{
|
|
strcpy (charset, charset[2] == '2' ? "GB2312" : "GBK");
|
|
mbc_max = 2;
|
|
l_wctomb = __gbk_wctomb;
|
|
l_mbtowc = __gbk_mbtowc;
|
|
}
|
|
else if (!strcasecmp (charset, "GB18030"))
|
|
{
|
|
strcpy (charset, "GB18030");
|
|
mbc_max = 4;
|
|
l_wctomb = __gb18030_wctomb;
|
|
l_mbtowc = __gb18030_mbtowc;
|
|
}
|
|
else
|
|
#endif /* __CYGWIN__ */
|
|
/* GEORGIAN-PS and the alias without dash */
|
|
if (!strncasecmp (charset, "GEORGIAN", 8))
|
|
{
|
|
c = charset + 8;
|
|
if (*c == '-')
|
|
++c;
|
|
if (strcasecmp (c, "PS"))
|
|
FAIL;
|
|
val = 101;
|
|
strcpy (charset, "CP101");
|
|
mbc_max = 1;
|
|
#ifdef _MB_EXTENDED_CHARSETS_WINDOWS
|
|
l_wctomb = __cp_wctomb (val);
|
|
l_mbtowc = __cp_mbtowc (val);
|
|
#else /* !_MB_EXTENDED_CHARSETS_WINDOWS */
|
|
l_wctomb = __ascii_wctomb;
|
|
l_mbtowc = __ascii_mbtowc;
|
|
#endif /* _MB_EXTENDED_CHARSETS_WINDOWS */
|
|
}
|
|
else
|
|
FAIL;
|
|
break;
|
|
case 'P':
|
|
case 'p':
|
|
/* PT154 */
|
|
if (strcasecmp (charset, "PT154"))
|
|
FAIL;
|
|
val = 102;
|
|
strcpy (charset, "CP102");
|
|
mbc_max = 1;
|
|
#ifdef _MB_EXTENDED_CHARSETS_WINDOWS
|
|
l_wctomb = __cp_wctomb (val);
|
|
l_mbtowc = __cp_mbtowc (val);
|
|
#else /* !_MB_EXTENDED_CHARSETS_WINDOWS */
|
|
l_wctomb = __ascii_wctomb;
|
|
l_mbtowc = __ascii_mbtowc;
|
|
#endif /* _MB_EXTENDED_CHARSETS_WINDOWS */
|
|
break;
|
|
case 'T':
|
|
case 't':
|
|
if (strncasecmp (charset, "TIS", 3))
|
|
FAIL;
|
|
c = charset + 3;
|
|
if (*c == '-')
|
|
++c;
|
|
if (strcmp (c, "620"))
|
|
FAIL;
|
|
val = 874;
|
|
strcpy (charset, "CP874");
|
|
mbc_max = 1;
|
|
#ifdef _MB_EXTENDED_CHARSETS_WINDOWS
|
|
l_wctomb = __cp_wctomb (val);
|
|
l_mbtowc = __cp_mbtowc (val);
|
|
#else /* !_MB_EXTENDED_CHARSETS_WINDOWS */
|
|
l_wctomb = __ascii_wctomb;
|
|
l_mbtowc = __ascii_mbtowc;
|
|
#endif /* _MB_EXTENDED_CHARSETS_WINDOWS */
|
|
break;
|
|
#ifdef __CYGWIN__
|
|
/* Newlib does not provide Big5 and Cygwin's implementation
|
|
requires Windows support. */
|
|
case 'B':
|
|
case 'b':
|
|
if (strcasecmp (charset, "BIG5"))
|
|
FAIL;
|
|
strcpy (charset, "BIG5");
|
|
mbc_max = 2;
|
|
l_wctomb = __big5_wctomb;
|
|
l_mbtowc = __big5_mbtowc;
|
|
break;
|
|
#endif /* __CYGWIN__ */
|
|
default:
|
|
FAIL;
|
|
}
|
|
switch (category)
|
|
{
|
|
case LC_CTYPE:
|
|
#ifndef __HAVE_LOCALE_INFO__
|
|
strcpy (loc->ctype_codeset, charset);
|
|
loc->mb_cur_max[0] = mbc_max;
|
|
#endif
|
|
#ifdef __CYGWIN__
|
|
__mb_cur_max = mbc_max; /* Only for backward compat */
|
|
#endif
|
|
loc->wctomb = l_wctomb;
|
|
loc->mbtowc = l_mbtowc;
|
|
__set_ctype (loc, charset);
|
|
/* Set CJK width mode (1: ambiguous-wide, 0: normal, -1: disabled). */
|
|
/* Determine the width for the "CJK Ambiguous Width" category of
|
|
characters. This is used in wcwidth(). Assume single width for
|
|
single-byte charsets, and double width for multi-byte charsets
|
|
other than UTF-8. For UTF-8, use single width.
|
|
Single width can also be forced with the "@cjknarrow" modifier.
|
|
Double width can also be forced with the "@cjkwide" modifier.
|
|
*/
|
|
loc->cjk_lang = cjkwide ||
|
|
(!cjknarrow && mbc_max > 1 && charset[0] != 'U');
|
|
if (cjksingle)
|
|
loc->cjk_lang = -1; /* Disable CJK dual-width */
|
|
#ifdef __HAVE_LOCALE_INFO__
|
|
ret = __ctype_load_locale (loc, locale, (void *) l_wctomb, charset,
|
|
mbc_max);
|
|
#endif /* __HAVE_LOCALE_INFO__ */
|
|
break;
|
|
case LC_MESSAGES:
|
|
#ifdef __HAVE_LOCALE_INFO__
|
|
ret = __messages_load_locale (loc, locale, (void *) l_wctomb, charset);
|
|
if (!ret)
|
|
#else
|
|
strcpy (loc->message_codeset, charset);
|
|
#endif /* __HAVE_LOCALE_INFO__ */
|
|
break;
|
|
#ifdef __HAVE_LOCALE_INFO__
|
|
#ifdef __CYGWIN__
|
|
/* Right now only Cygwin supports a __collate_load_locale function at all. */
|
|
case LC_COLLATE:
|
|
ret = __collate_load_locale (loc, locale, (void *) l_mbtowc, charset);
|
|
break;
|
|
#endif
|
|
case LC_MONETARY:
|
|
ret = __monetary_load_locale (loc, locale, (void *) l_wctomb, charset);
|
|
break;
|
|
case LC_NUMERIC:
|
|
ret = __numeric_load_locale (loc, locale, (void *) l_wctomb, charset);
|
|
break;
|
|
case LC_TIME:
|
|
ret = __time_load_locale (loc, locale, (void *) l_wctomb, charset);
|
|
break;
|
|
#endif /* __HAVE_LOCALE_INFO__ */
|
|
default:
|
|
break;
|
|
}
|
|
#ifdef __HAVE_LOCALE_INFO__
|
|
if (ret)
|
|
FAIL;
|
|
#endif /* __HAVE_LOCALE_INFO__ */
|
|
return strcpy(loc->categories[category], new_locale);
|
|
}
|
|
|
|
const char *
|
|
__get_locale_env (struct _reent *p, int category)
|
|
{
|
|
const char *env;
|
|
|
|
/* 1. check LC_ALL. */
|
|
env = _getenv_r (p, categories[0]);
|
|
|
|
/* 2. check LC_* */
|
|
if (env == NULL || !*env)
|
|
env = _getenv_r (p, categories[category]);
|
|
|
|
/* 3. check LANG */
|
|
if (env == NULL || !*env)
|
|
env = _getenv_r (p, "LANG");
|
|
|
|
/* 4. if none is set, fall to default locale */
|
|
if (env == NULL || !*env)
|
|
env = __default_locale;
|
|
|
|
return env;
|
|
}
|
|
#endif /* _MB_CAPABLE */
|
|
|
|
int
|
|
__locale_mb_cur_max (void)
|
|
{
|
|
#ifdef __HAVE_LOCALE_INFO__
|
|
return __get_current_ctype_locale ()->mb_cur_max[0];
|
|
#else
|
|
return __get_current_locale ()->mb_cur_max[0];
|
|
#endif
|
|
}
|
|
|
|
#ifdef __HAVE_LOCALE_INFO__
|
|
const char *
|
|
__locale_ctype_ptr_l (struct __locale_t *locale)
|
|
{
|
|
return locale->ctype_ptr;
|
|
}
|
|
|
|
const char *
|
|
__locale_ctype_ptr (void)
|
|
{
|
|
return __get_current_locale ()->ctype_ptr;
|
|
}
|
|
#endif /* __HAVE_LOCALE_INFO__ */
|
|
|
|
#ifndef _REENT_ONLY
|
|
|
|
char *
|
|
setlocale (int category,
|
|
const char *locale)
|
|
{
|
|
return _setlocale_r (_REENT, category, locale);
|
|
}
|
|
|
|
#endif
|