1 /* 2 * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Copyright (c) 2011 The FreeBSD Foundation 6 * All rights reserved. 7 * Portions of this software were developed by David Chisnall 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD: head/lib/libc/locale/lnumeric.c 227753 2011-11-20 14:45:42Z theraven $ 32 */ 33 34 35 #include <limits.h> 36 37 #include "ldpart.h" 38 #include "lnumeric.h" 39 40 extern const char *__fix_locale_grouping_str(const char *); 41 42 #define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *)) 43 44 static char numempty[] = { CHAR_MAX, '\0' }; 45 46 static const struct lc_numeric_T _C_numeric_locale = { 47 ".", /* decimal_point */ 48 "", /* thousands_sep */ 49 numempty /* grouping */ 50 }; 51 52 static void 53 destruct_numeric(void *v) 54 { 55 struct xlocale_numeric *l = v; 56 if (l->buffer) 57 free(l->buffer); 58 free(l); 59 } 60 61 struct xlocale_numeric __xlocale_global_numeric; 62 63 static int 64 numeric_load_locale(struct xlocale_numeric *loc, int *using_locale, int *changed, 65 const char *name) 66 { 67 int ret; 68 struct lc_numeric_T *l = &loc->locale; 69 70 ret = __part_load_locale(name, using_locale, 71 &loc->buffer, "LC_NUMERIC", 72 LCNUMERIC_SIZE, LCNUMERIC_SIZE, 73 (const char**)l); 74 if (ret != _LDP_ERROR) 75 *changed= 1; 76 if (ret == _LDP_LOADED) { 77 /* Can't be empty according to C99 */ 78 if (*l->decimal_point == '\0') 79 l->decimal_point = 80 _C_numeric_locale.decimal_point; 81 l->grouping = 82 __fix_locale_grouping_str(l->grouping); 83 } 84 return (ret); 85 } 86 87 int 88 __numeric_load_locale(const char *name) 89 { 90 return numeric_load_locale(&__xlocale_global_numeric, 91 &__xlocale_global_locale.using_numeric_locale, 92 &__xlocale_global_locale.numeric_locale_changed, name); 93 } 94 void * 95 __numeric_load(const char *name, locale_t l) 96 { 97 struct xlocale_numeric *new = calloc(sizeof(struct xlocale_numeric), 1); 98 new->header.header.destructor = destruct_numeric; 99 if (numeric_load_locale(new, &l->using_numeric_locale, 100 &l->numeric_locale_changed, name) == _LDP_ERROR) 101 { 102 xlocale_release(new); 103 return NULL; 104 } 105 return new; 106 } 107 108 struct lc_numeric_T * 109 __get_current_numeric_locale(locale_t loc) 110 { 111 return (loc->using_numeric_locale 112 ? &((struct xlocale_numeric *)loc->components[XLC_NUMERIC])->locale 113 : (struct lc_numeric_T *)&_C_numeric_locale); 114 } 115 116 #ifdef LOCALE_DEBUG 117 void 118 numericdebug(void) { 119 printf( "decimal_point = %s\n" 120 "thousands_sep = %s\n" 121 "grouping = %s\n", 122 _numeric_locale.decimal_point, 123 _numeric_locale.thousands_sep, 124 _numeric_locale.grouping 125 ); 126 } 127 #endif /* LOCALE_DEBUG */ 128