source: asp3_tinet_ecnl_rx/trunk/musl-1.1.18/src/locale/dcngettext.c@ 337

Last change on this file since 337 was 337, checked in by coas-nagasima, 6 years ago

ASP3版ECNLを追加
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-csrc;charset=UTF-8
File size: 6.1 KB
Line 
1#include <libintl.h>
2#include <stdlib.h>
3#include <string.h>
4#include <errno.h>
5#include <limits.h>
6#include <sys/stat.h>
7#include <ctype.h>
8#include "locale_impl.h"
9#include "libc.h"
10#include "atomic.h"
11
12struct binding {
13 struct binding *next;
14 int dirlen;
15 volatile int active;
16 char *domainname;
17 char *dirname;
18 char buf[];
19};
20
21static void *volatile bindings;
22
23static char *gettextdir(const char *domainname, size_t *dirlen)
24{
25 struct binding *p;
26 for (p=bindings; p; p=p->next) {
27 if (!strcmp(p->domainname, domainname) && p->active) {
28 *dirlen = p->dirlen;
29 return (char *)p->dirname;
30 }
31 }
32 return 0;
33}
34
35char *bindtextdomain(const char *domainname, const char *dirname)
36{
37 static volatile int lock[2];
38 struct binding *p, *q;
39
40 if (!domainname) return 0;
41 if (!dirname) return gettextdir(domainname, &(size_t){0});
42
43 size_t domlen = strnlen(domainname, NAME_MAX+1);
44 size_t dirlen = strnlen(dirname, PATH_MAX);
45 if (domlen > NAME_MAX || dirlen >= PATH_MAX) {
46 errno = EINVAL;
47 return 0;
48 }
49
50 LOCK(lock);
51
52 for (p=bindings; p; p=p->next) {
53 if (!strcmp(p->domainname, domainname) &&
54 !strcmp(p->dirname, dirname)) {
55 break;
56 }
57 }
58
59 if (!p) {
60 p = calloc(sizeof *p + domlen + dirlen + 2, 1);
61 if (!p) {
62 UNLOCK(lock);
63 return 0;
64 }
65 p->next = bindings;
66 p->dirlen = dirlen;
67 p->domainname = p->buf;
68 p->dirname = p->buf + domlen + 1;
69 memcpy(p->domainname, domainname, domlen+1);
70 memcpy(p->dirname, dirname, dirlen+1);
71 a_cas_p(&bindings, bindings, p);
72 }
73
74 a_store(&p->active, 1);
75
76 for (q=bindings; q; q=q->next) {
77 if (!strcmp(q->domainname, domainname) && q != p)
78 a_store(&q->active, 0);
79 }
80
81 UNLOCK(lock);
82
83 return (char *)p->dirname;
84}
85
86static const char catnames[][12] = {
87 "LC_CTYPE",
88 "LC_NUMERIC",
89 "LC_TIME",
90 "LC_COLLATE",
91 "LC_MONETARY",
92 "LC_MESSAGES",
93};
94
95static const char catlens[] = { 8, 10, 7, 10, 11, 11 };
96
97struct msgcat {
98 struct msgcat *next;
99 const void *map;
100 size_t map_size;
101 void *volatile plural_rule;
102 volatile int nplurals;
103 struct binding *binding;
104 const struct __locale_map *lm;
105 int cat;
106};
107
108static char *dummy_gettextdomain()
109{
110 return "messages";
111}
112
113weak_alias(dummy_gettextdomain, __gettextdomain);
114
115const unsigned char *__map_file(const char *, size_t *);
116int __munmap(void *, size_t);
117unsigned long __pleval(const char *, unsigned long);
118
119char *dcngettext(const char *domainname, const char *msgid1, const char *msgid2, unsigned long int n, int category)
120{
121 static struct msgcat *volatile cats;
122 struct msgcat *p;
123 struct __locale_struct *loc = CURRENT_LOCALE;
124 const struct __locale_map *lm;
125 size_t domlen;
126 struct binding *q;
127
128 if ((unsigned)category >= LC_ALL) goto notrans;
129
130 if (!domainname) domainname = __gettextdomain();
131
132 domlen = strnlen(domainname, NAME_MAX+1);
133 if (domlen > NAME_MAX) goto notrans;
134
135 for (q=bindings; q; q=q->next)
136 if (!strcmp(q->domainname, domainname) && q->active)
137 break;
138 if (!q) goto notrans;
139
140 lm = loc->cat[category];
141 if (!lm) {
142notrans:
143 return (char *) ((n == 1) ? msgid1 : msgid2);
144 }
145
146 for (p=cats; p; p=p->next)
147 if (p->binding == q && p->lm == lm && p->cat == category)
148 break;
149
150 if (!p) {
151 const char *dirname, *locname, *catname, *modname, *locp;
152 size_t dirlen, loclen, catlen, modlen, alt_modlen;
153 void *old_cats;
154 size_t map_size;
155
156 dirname = q->dirname;
157 locname = lm->name;
158 catname = catnames[category];
159
160 dirlen = q->dirlen;
161 loclen = strlen(locname);
162 catlen = catlens[category];
163
164 /* Logically split @mod suffix from locale name. */
165 modname = memchr(locname, '@', loclen);
166 if (!modname) modname = locname + loclen;
167 alt_modlen = modlen = loclen - (modname-locname);
168 loclen = modname-locname;
169
170 /* Drop .charset identifier; it is not used. */
171 const char *csp = memchr(locname, '.', loclen);
172 if (csp) loclen = csp-locname;
173
174 char name[dirlen+1 + loclen+modlen+1 + catlen+1 + domlen+3 + 1];
175 const void *map;
176
177 for (;;) {
178 snprintf(name, sizeof name, "%s/%.*s%.*s/%s/%s.mo\0",
179 dirname, (int)loclen, locname,
180 (int)alt_modlen, modname, catname, domainname);
181 if (map = __map_file(name, &map_size)) break;
182
183 /* Try dropping @mod, _YY, then both. */
184 if (alt_modlen) {
185 alt_modlen = 0;
186 } else if ((locp = memchr(locname, '_', loclen))) {
187 loclen = locp-locname;
188 alt_modlen = modlen;
189 } else {
190 break;
191 }
192 }
193 if (!map) goto notrans;
194
195 p = calloc(sizeof *p, 1);
196 if (!p) {
197 __munmap((void *)map, map_size);
198 goto notrans;
199 }
200 p->cat = category;
201 p->binding = q;
202 p->lm = lm;
203 p->map = map;
204 p->map_size = map_size;
205 do {
206 old_cats = cats;
207 p->next = old_cats;
208 } while (a_cas_p(&cats, old_cats, p) != old_cats);
209 }
210
211 const char *trans = __mo_lookup(p->map, p->map_size, msgid1);
212 if (!trans) goto notrans;
213
214 /* Non-plural-processing gettext forms pass a null pointer as
215 * msgid2 to request that dcngettext suppress plural processing. */
216 if (!msgid2) return (char *)trans;
217
218 if (!p->plural_rule) {
219 const char *rule = "n!=1;";
220 unsigned long np = 2;
221 const char *r = __mo_lookup(p->map, p->map_size, "");
222 char *z;
223 while (r && strncmp(r, "Plural-Forms:", 13)) {
224 z = strchr(r, '\n');
225 r = z ? z+1 : 0;
226 }
227 if (r) {
228 r += 13;
229 while (isspace(*r)) r++;
230 if (!strncmp(r, "nplurals=", 9)) {
231 np = strtoul(r+9, &z, 10);
232 r = z;
233 }
234 while (*r && *r != ';') r++;
235 if (*r) {
236 r++;
237 while (isspace(*r)) r++;
238 if (!strncmp(r, "plural=", 7))
239 rule = r+7;
240 }
241 }
242 a_store(&p->nplurals, np);
243 a_cas_p(&p->plural_rule, 0, (void *)rule);
244 }
245 if (p->nplurals) {
246 unsigned long plural = __pleval(p->plural_rule, n);
247 if (plural > p->nplurals) goto notrans;
248 while (plural--) {
249 size_t rem = p->map_size - (trans - (char *)p->map);
250 size_t l = strnlen(trans, rem);
251 if (l+1 >= rem)
252 goto notrans;
253 trans += l+1;
254 }
255 }
256 return (char *)trans;
257}
258
259char *dcgettext(const char *domainname, const char *msgid, int category)
260{
261 return dcngettext(domainname, msgid, 0, 1, category);
262}
263
264char *dngettext(const char *domainname, const char *msgid1, const char *msgid2, unsigned long int n)
265{
266 return dcngettext(domainname, msgid1, msgid2, n, LC_MESSAGES);
267}
268
269char *dgettext(const char *domainname, const char *msgid)
270{
271 return dcngettext(domainname, msgid, 0, 1, LC_MESSAGES);
272}
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