xref: /freebsd/lib/libc/locale/nl_langinfo.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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 ERA:
97 		/* XXX: need to be implemented  */
98 		ret = "";
99 		break;
100 	case ERA_D_FMT:
101 		/* XXX: need to be implemented  */
102 		ret = "";
103 		break;
104 	case ERA_D_T_FMT:
105 		/* XXX: need to be implemented  */
106 		ret = "";
107 		break;
108 	case ERA_T_FMT:
109 		/* XXX: need to be implemented  */
110 		ret = "";
111 		break;
112 	case ALT_DIGITS:
113 		/* XXX: need to be implemented  */
114 		ret = "";
115 		break;
116 	case RADIXCHAR:
117 		ret = (char*) __get_current_numeric_locale()->decimal_point;
118 		break;
119 	case THOUSEP:
120 		ret = (char*) __get_current_numeric_locale()->thousands_sep;
121 		break;
122 	case YESEXPR:
123 		ret = (char*) __get_current_messages_locale()->yesexpr;
124 		break;
125 	case NOEXPR:
126 		ret = (char*) __get_current_messages_locale()->noexpr;
127 		break;
128 	/*
129 	 * YESSTR and NOSTR items marked with LEGACY are available, but not
130 	 * recomended by SUSv2 to be used in portable applications since
131 	 * they're subject to remove in future specification editions.
132 	 */
133 	case YESSTR:            /* LEGACY  */
134 		ret = (char*) __get_current_messages_locale()->yesstr;
135 		break;
136 	case NOSTR:             /* LEGACY  */
137 		ret = (char*) __get_current_messages_locale()->nostr;
138 		break;
139 	/*
140 	 * SUSv2 special formatted currency string
141 	 */
142 	case CRNCYSTR:
143 		ret = "";
144 		cs = (char*) __get_current_monetary_locale()->currency_symbol;
145 		if (*cs != '\0') {
146 			char pos = localeconv()->p_cs_precedes;
147 
148 			if (pos == localeconv()->n_cs_precedes) {
149 				char psn = '\0';
150 
151 				if (pos == CHAR_MAX) {
152 					if (strcmp(cs, __get_current_monetary_locale()->mon_decimal_point) == 0)
153 						psn = '.';
154 				} else
155 					psn = pos ? '-' : '+';
156 				if (psn != '\0') {
157 					int clen = strlen(cs);
158 
159 					if ((csym = reallocf(csym, clen + 2)) != NULL) {
160 						*csym = psn;
161 						strcpy(csym + 1, cs);
162 						ret = csym;
163 					}
164 				}
165 			}
166 		}
167 		break;
168 	case D_MD_ORDER:        /* FreeBSD local extension */
169 		ret = (char *) __get_current_time_locale()->md_order;
170 		break;
171 	default:
172 		ret = "";
173    }
174    return (ret);
175 }
176