1/* 2 * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: src/lib/libc/locale/lnumeric.c,v 1.16 2003/06/26 10:46:16 phantom Exp $"); 29 30#include "xlocale_private.h" 31 32#include <limits.h> 33#include <string.h> 34 35#include "ldpart.h" 36#include "lnumeric.h" 37 38extern const char *__fix_locale_grouping_str(const char *); 39 40#define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *)) 41 42static const struct lc_numeric_T _C_numeric_locale = { 43 ".", /* decimal_point */ 44 "", /* thousands_sep */ 45 "" /* grouping [C99 7.11.2.1]*/ 46}; 47 48__private_extern__ int 49__numeric_load_locale(const char *name, locale_t loc) 50{ 51 int ret; 52 struct __xlocale_st_numeric *xp; 53 static struct __xlocale_st_numeric *cache = NULL; 54 55 /* 'name' must be already checked. */ 56 if (strcmp(name, "C") == 0 || strcmp(name, "POSIX") == 0) { 57 if (!loc->_numeric_using_locale) 58 return (_LDP_CACHE); 59 loc->_numeric_using_locale = 0; 60 XL_RELEASE(loc->__lc_numeric); 61 loc->__lc_numeric = NULL; 62 loc->__nlocale_changed = 1; 63 return (_LDP_CACHE); 64 } 65 66 if (loc->_numeric_using_locale && strcmp(name, loc->__lc_numeric->_numeric_locale_buf) == 0) 67 return (_LDP_CACHE); 68 /* 69 * If the locale name is the same as our cache, use the cache. 70 */ 71 if (cache && cache->_numeric_locale_buf && strcmp(name, cache->_numeric_locale_buf) == 0) { 72 loc->_numeric_using_locale = 1; 73 XL_RELEASE(loc->__lc_numeric); 74 loc->__lc_numeric = cache; 75 XL_RETAIN(loc->__lc_numeric); 76 loc->__nlocale_changed = 1; 77 return (_LDP_CACHE); 78 } 79 if ((xp = (struct __xlocale_st_numeric *)malloc(sizeof(*xp))) == NULL) 80 return _LDP_ERROR; 81 xp->__refcount = 1; 82 xp->__free_extra = (__free_extra_t)__ldpart_free_extra; 83 xp->_numeric_locale_buf = NULL; 84 85 ret = __part_load_locale(name, &loc->_numeric_using_locale, 86 &xp->_numeric_locale_buf, "LC_NUMERIC", 87 LCNUMERIC_SIZE, LCNUMERIC_SIZE, 88 (const char **)&xp->_numeric_locale); 89 if (ret != _LDP_ERROR) 90 loc->__nlocale_changed = 1; 91 else 92 free(xp); 93 if (ret == _LDP_LOADED) { 94 /* Can't be empty according to C99 */ 95 if (*xp->_numeric_locale.decimal_point == '\0') 96 xp->_numeric_locale.decimal_point = 97 _C_numeric_locale.decimal_point; 98 xp->_numeric_locale.grouping = 99 __fix_locale_grouping_str(xp->_numeric_locale.grouping); 100 XL_RELEASE(loc->__lc_numeric); 101 loc->__lc_numeric = xp; 102 XL_RELEASE(cache); 103 cache = xp; 104 XL_RETAIN(cache); 105 } 106 return (ret); 107} 108 109__private_extern__ struct lc_numeric_T * 110__get_current_numeric_locale(locale_t loc) 111{ 112 return (loc->_numeric_using_locale 113 ? &loc->__lc_numeric->_numeric_locale 114 : (struct lc_numeric_T *)&_C_numeric_locale); 115} 116 117#ifdef LOCALE_DEBUG 118void 119numericdebug(void) { 120locale_t loc = __current_locale(); 121printf( "decimal_point = %s\n" 122 "thousands_sep = %s\n" 123 "grouping = %s\n", 124 loc->__lc_numeric->_numeric_locale.decimal_point, 125 loc->__lc_numeric->_numeric_locale.thousands_sep, 126 loc->__lc_numeric->_numeric_locale.grouping 127); 128} 129#endif /* LOCALE_DEBUG */ 130