xref: /freebsd/lib/libc/locale/nl_langinfo.c (revision 7aa383846770374466b1dcb2cefd71bde9acf463)
1 /*-
2  * Copyright (c) 2001, 2003 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("$FreeBSD$");
29 
30 #include <langinfo.h>
31 #include <limits.h>
32 #include <locale.h>
33 #include <stdlib.h>
34 #include <string.h>
35 
36 #include "lnumeric.h"
37 #include "lmessages.h"
38 #include "lmonetary.h"
39 #include "../stdtime/timelocal.h"
40 
41 #define _REL(BASE) ((int)item-BASE)
42 
43 char *
44 nl_langinfo(nl_item item)
45 {
46    char *ret, *s, *cs;
47    static char *csym = NULL;
48 
49    switch (item) {
50 	case CODESET:
51 		ret = "";
52 		if ((s = setlocale(LC_CTYPE, NULL)) != NULL) {
53 			if ((cs = strchr(s, '.')) != NULL)
54 				ret = cs + 1;
55 			else if (strcmp(s, "C") == 0 ||
56 				 strcmp(s, "POSIX") == 0)
57 				ret = "US-ASCII";
58 		}
59 		break;
60 	case D_T_FMT:
61 		ret = (char *) __get_current_time_locale()->c_fmt;
62 		break;
63 	case D_FMT:
64 		ret = (char *) __get_current_time_locale()->x_fmt;
65 		break;
66 	case T_FMT:
67 		ret = (char *) __get_current_time_locale()->X_fmt;
68 		break;
69 	case T_FMT_AMPM:
70 		ret = (char *) __get_current_time_locale()->ampm_fmt;
71 		break;
72 	case AM_STR:
73 		ret = (char *) __get_current_time_locale()->am;
74 		break;
75 	case PM_STR:
76 		ret = (char *) __get_current_time_locale()->pm;
77 		break;
78 	case DAY_1: case DAY_2: case DAY_3:
79 	case DAY_4: case DAY_5: case DAY_6: case DAY_7:
80 		ret = (char*) __get_current_time_locale()->weekday[_REL(DAY_1)];
81 		break;
82 	case ABDAY_1: case ABDAY_2: case ABDAY_3:
83 	case ABDAY_4: case ABDAY_5: case ABDAY_6: case ABDAY_7:
84 		ret = (char*) __get_current_time_locale()->wday[_REL(ABDAY_1)];
85 		break;
86 	case MON_1: case MON_2: case MON_3: case MON_4:
87 	case MON_5: case MON_6: case MON_7: case MON_8:
88 	case MON_9: case MON_10: case MON_11: case MON_12:
89 		ret = (char*) __get_current_time_locale()->month[_REL(MON_1)];
90 		break;
91 	case ABMON_1: case ABMON_2: case ABMON_3: case ABMON_4:
92 	case ABMON_5: case ABMON_6: case ABMON_7: case ABMON_8:
93 	case ABMON_9: case ABMON_10: case ABMON_11: case ABMON_12:
94 		ret = (char*) __get_current_time_locale()->mon[_REL(ABMON_1)];
95 		break;
96 	case ALTMON_1: case ALTMON_2: case ALTMON_3: case ALTMON_4:
97 	case ALTMON_5: case ALTMON_6: case ALTMON_7: case ALTMON_8:
98 	case ALTMON_9: case ALTMON_10: case ALTMON_11: case ALTMON_12:
99 		ret = (char*)
100 		    __get_current_time_locale()->alt_month[_REL(ALTMON_1)];
101 		break;
102 	case ERA:
103 		/* XXX: need to be implemented  */
104 		ret = "";
105 		break;
106 	case ERA_D_FMT:
107 		/* XXX: need to be implemented  */
108 		ret = "";
109 		break;
110 	case ERA_D_T_FMT:
111 		/* XXX: need to be implemented  */
112 		ret = "";
113 		break;
114 	case ERA_T_FMT:
115 		/* XXX: need to be implemented  */
116 		ret = "";
117 		break;
118 	case ALT_DIGITS:
119 		/* XXX: need to be implemented  */
120 		ret = "";
121 		break;
122 	case RADIXCHAR:
123 		ret = (char*) __get_current_numeric_locale()->decimal_point;
124 		break;
125 	case THOUSEP:
126 		ret = (char*) __get_current_numeric_locale()->thousands_sep;
127 		break;
128 	case YESEXPR:
129 		ret = (char*) __get_current_messages_locale()->yesexpr;
130 		break;
131 	case NOEXPR:
132 		ret = (char*) __get_current_messages_locale()->noexpr;
133 		break;
134 	/*
135 	 * YESSTR and NOSTR items marked with LEGACY are available, but not
136 	 * recomended by SUSv2 to be used in portable applications since
137 	 * they're subject to remove in future specification editions.
138 	 */
139 	case YESSTR:            /* LEGACY  */
140 		ret = (char*) __get_current_messages_locale()->yesstr;
141 		break;
142 	case NOSTR:             /* LEGACY  */
143 		ret = (char*) __get_current_messages_locale()->nostr;
144 		break;
145 	/*
146 	 * SUSv2 special formatted currency string
147 	 */
148 	case CRNCYSTR:
149 		ret = "";
150 		cs = (char*) __get_current_monetary_locale()->currency_symbol;
151 		if (*cs != '\0') {
152 			char pos = localeconv()->p_cs_precedes;
153 
154 			if (pos == localeconv()->n_cs_precedes) {
155 				char psn = '\0';
156 
157 				if (pos == CHAR_MAX) {
158 					if (strcmp(cs, __get_current_monetary_locale()->mon_decimal_point) == 0)
159 						psn = '.';
160 				} else
161 					psn = pos ? '-' : '+';
162 				if (psn != '\0') {
163 					int clen = strlen(cs);
164 
165 					if ((csym = reallocf(csym, clen + 2)) != NULL) {
166 						*csym = psn;
167 						strcpy(csym + 1, cs);
168 						ret = csym;
169 					}
170 				}
171 			}
172 		}
173 		break;
174 	case D_MD_ORDER:        /* FreeBSD local extension */
175 		ret = (char *) __get_current_time_locale()->md_order;
176 		break;
177 	default:
178 		ret = "";
179    }
180    return (ret);
181 }
182