1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
|
/* setlocale( int, const char * )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#include <locale.h>
#include <stdlib.h>
#include <string.h>
#ifndef REGTEST
#if 0
static const char * _PDCLIB_LC_category_name[ _PDCLIB_LC_COUNT ] = { NULL, "LC_COLLATE", "LC_CTYPE", "LC_MONETARY", "LC_NUMERIC", "LC_TIME", "LC_MESSAGES" };
static const char * _PDCLIB_default_locale( int category )
{
const char * s;
/* The standard states (7.22.4.6 (3), "the implementation shall behave
as if no library function calls the getenv function." That is,
however, in context of the previous paragraph stating that getenv
"need not avoid data races with other threads of execution that
modify the environment list".
PDCLib does not provide means of modifying the environment list.
*/
if ( ( s = getenv( "LC_ALL" ) ) == NULL )
{
if ( category == LC_ALL || ( s = getenv( _PDCLIB_LC_category_name[ category ] ) ) == NULL )
{
if ( ( s = getenv( "LANG" ) ) == NULL )
{
s = "C";
}
}
}
return s;
}
#endif
char * setlocale( int category, const char * locale )
{
/* All below is very much work-in-progress, so we do a dumb-dummy
return here.
*/
if ( locale == NULL || ! strcmp( locale, "C" ) )
{
return ( char * )"C";
}
else
{
return NULL;
}
#if 0
/* Path to locale data files - _PDCLIB_LOCALE_PATH unless overruled
by the environment variable whose name is defined by preprocessor
symbol _PDCLIB_LOCALE_PATH_ENV (defaulting to PDCLIB_I18N).
Both of these definitions are set in _PDCLIB_config.h.
*/
const char * path = _PDCLIB_LOCALE_PATH;
struct _PDCLIB_lc_lconv_numeric_t * numeric = NULL;
struct _PDCLIB_lc_lconv_monetary_t * monetary = NULL;
struct _PDCLIB_lc_collate_t * collate = NULL;
struct _PDCLIB_lc_ctype_t * ctype = NULL;
struct _PDCLIB_lc_messages_t * messages = NULL;
struct _PDCLIB_lc_time_t * time = NULL;
char * rc = ( char * )locale;
if ( category < 0 || category >= _PDCLIB_LC_COUNT )
{
/* Bad category */
return NULL;
}
if ( locale == NULL )
{
/* NULL - Return current locale settings */
/* TODO */
}
if ( strlen( locale ) == 0 )
{
/* "" - Use default locale */
locale = _PDCLIB_default_locale( category );
}
if ( getenv( _PDCLIB_value2string( _PDCLIB_LOCALE_PATH_ENV ) ) != NULL )
{
path = getenv( _PDCLIB_value2string( _PDCLIB_LOCALE_PATH_ENV ) );
}
/* We have to do this in two runs. As we might be facing LC_ALL, we
need to be certain all the loads are successful before we start
to overwrite the current locale settings, because there is no way
this function could report a _partial_ success.
*/
/* Run One -- get all the data for the new locale setting */
if ( category == LC_COLLATE || category == LC_ALL )
{
if ( !( collate = _PDCLIB_load_lc_collate( path, locale ) ) )
{
rc = NULL;
}
}
if ( category == LC_CTYPE || category == LC_ALL )
{
if ( !( ctype = _PDCLIB_load_lc_ctype( path, locale ) ) )
{
rc = NULL;
}
}
if ( category == LC_MONETARY || category == LC_ALL )
{
if ( !( monetary = _PDCLIB_load_lc_monetary( path, locale ) ) )
{
rc = NULL;
}
}
if ( category == LC_NUMERIC || category == LC_ALL )
{
if ( !( numeric = _PDCLIB_load_lc_numeric( path, locale ) ) )
{
rc = NULL;
}
}
if ( category == LC_TIME || category == LC_ALL )
{
if ( !( time = _PDCLIB_load_lc_time( path, locale ) ) )
{
rc = NULL;
}
}
if ( category == LC_MESSAGES || category == LC_ALL )
{
if ( !( messages = _PDCLIB_load_lc_messages( path, locale ) ) )
{
rc = NULL;
}
}
/* Run Two -- continue or release resources */
if ( rc != NULL )
{
if ( category == LC_COLLATE || category == LC_ALL )
{
if ( _PDCLIB_lc_collate->alloced )
{
/* free resources */
}
*_PDCLIB_lc_collate = *collate;
free( collate );
}
if ( category == LC_CTYPE || category == LC_ALL )
{
if ( _PDCLIB_lc_ctype->alloced )
{
free( _PDCLIB_lc_ctype->entry - 1 );
}
*_PDCLIB_lc_ctype = *ctype;
free( ctype );
}
if ( category == LC_MONETARY || category == LC_ALL )
{
if ( _PDCLIB_lc_numeric_monetary.monetary_alloced )
{
free( _PDCLIB_lc_numeric_monetary.lconv->mon_decimal_point );
}
_PDCLIB_lc_numeric_monetary.lconv->mon_decimal_point = monetary->mon_decimal_point;
_PDCLIB_lc_numeric_monetary.lconv->mon_thousands_sep = monetary->mon_thousands_sep;
_PDCLIB_lc_numeric_monetary.lconv->mon_grouping = monetary->mon_grouping;
_PDCLIB_lc_numeric_monetary.lconv->positive_sign = monetary->positive_sign;
_PDCLIB_lc_numeric_monetary.lconv->negative_sign = monetary->negative_sign;
_PDCLIB_lc_numeric_monetary.lconv->currency_symbol = monetary->currency_symbol;
_PDCLIB_lc_numeric_monetary.lconv->int_curr_symbol = monetary->int_curr_symbol;
_PDCLIB_lc_numeric_monetary.lconv->frac_digits = monetary->frac_digits;
_PDCLIB_lc_numeric_monetary.lconv->p_cs_precedes = monetary->p_cs_precedes;
_PDCLIB_lc_numeric_monetary.lconv->n_cs_precedes = monetary->n_cs_precedes;
_PDCLIB_lc_numeric_monetary.lconv->p_sep_by_space = monetary->p_sep_by_space;
_PDCLIB_lc_numeric_monetary.lconv->n_sep_by_space = monetary->n_sep_by_space;
_PDCLIB_lc_numeric_monetary.lconv->p_sign_posn = monetary->p_sign_posn;
_PDCLIB_lc_numeric_monetary.lconv->n_sign_posn = monetary->n_sign_posn;
_PDCLIB_lc_numeric_monetary.lconv->int_frac_digits = monetary->int_frac_digits;
_PDCLIB_lc_numeric_monetary.lconv->int_p_cs_precedes = monetary->int_p_cs_precedes;
_PDCLIB_lc_numeric_monetary.lconv->int_n_cs_precedes = monetary->int_n_cs_precedes;
_PDCLIB_lc_numeric_monetary.lconv->int_p_sep_by_space = monetary->int_p_sep_by_space;
_PDCLIB_lc_numeric_monetary.lconv->int_n_sep_by_space = monetary->int_n_sep_by_space;
_PDCLIB_lc_numeric_monetary.lconv->int_p_sign_posn = monetary->int_p_sign_posn;
_PDCLIB_lc_numeric_monetary.lconv->int_n_sign_posn = monetary->int_n_sign_posn;
_PDCLIB_lc_numeric_monetary.monetary_alloced = 1;
free( monetary );
}
if ( category == LC_NUMERIC || category == LC_ALL )
{
if ( _PDCLIB_lc_numeric_monetary.numeric_alloced )
{
free( _PDCLIB_lc_numeric_monetary.lconv->decimal_point );
}
_PDCLIB_lc_numeric_monetary.lconv->decimal_point = numeric->decimal_point;
_PDCLIB_lc_numeric_monetary.lconv->thousands_sep = numeric->thousands_sep;
_PDCLIB_lc_numeric_monetary.lconv->grouping = numeric->grouping;
_PDCLIB_lc_numeric_monetary.numeric_alloced = 1;
free( numeric );
}
if ( category == LC_TIME || category == LC_ALL )
{
if ( _PDCLIB_lc_time->alloced )
{
free( _PDCLIB_lc_time->month_name_abbr[ 0 ] );
}
*_PDCLIB_lc_time = *time;
free( time );
}
if ( category == LC_MESSAGES || category == LC_ALL )
{
if ( _PDCLIB_lc_messages->alloced )
{
free( _PDCLIB_lc_messages->errno_texts[ 0 ] );
}
*_PDCLIB_lc_messages = *messages;
free( messages );
}
}
return NULL;
#endif
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
int main( void )
{
TESTCASE( strcmp( setlocale( LC_ALL, "C" ), "C" ) == 0 );
#ifndef REGTEST
TESTCASE( setlocale( LC_ALL, "" ) == NULL );
#endif
TESTCASE( strcmp( setlocale( LC_ALL, NULL ), "C" ) == 0 );
return TEST_RESULTS;
}
#endif
|
