1 | /* Convenience header for conditional use of GNU <libintl.h>. |
2 | Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2019 Free Software |
3 | Foundation, Inc. |
4 | |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by |
7 | the Free Software Foundation; either version 3, or (at your option) |
8 | any later version. |
9 | |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU General Public License along |
16 | with this program; if not, see <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #ifndef _LIBGETTEXT_H |
19 | #define _LIBGETTEXT_H 1 |
20 | |
21 | /* NLS can be disabled through the configure --disable-nls option |
22 | or through "#define ENABLE NLS 0" before including this file. */ |
23 | #if defined ENABLE_NLS && ENABLE_NLS |
24 | |
25 | /* Get declarations of GNU message catalog functions. */ |
26 | # include <libintl.h> |
27 | |
28 | /* You can set the DEFAULT_TEXT_DOMAIN macro to specify the domain used by |
29 | the gettext() and ngettext() macros. This is an alternative to calling |
30 | textdomain(), and is useful for libraries. */ |
31 | # ifdef DEFAULT_TEXT_DOMAIN |
32 | # undef gettext |
33 | # define gettext(Msgid) \ |
34 | dgettext (DEFAULT_TEXT_DOMAIN, Msgid) |
35 | # undef ngettext |
36 | # define ngettext(Msgid1, Msgid2, N) \ |
37 | dngettext (DEFAULT_TEXT_DOMAIN, Msgid1, Msgid2, N) |
38 | # endif |
39 | |
40 | #else |
41 | |
42 | /* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which |
43 | chokes if dcgettext is defined as a macro. So include it now, to make |
44 | later inclusions of <locale.h> a NOP. We don't include <libintl.h> |
45 | as well because people using "gettext.h" will not include <libintl.h>, |
46 | and also including <libintl.h> would fail on SunOS 4, whereas <locale.h> |
47 | is OK. */ |
48 | #if defined(__sun) |
49 | # include <locale.h> |
50 | #endif |
51 | |
52 | /* Many header files from the libstdc++ coming with g++ 3.3 or newer include |
53 | <libintl.h>, which chokes if dcgettext is defined as a macro. So include |
54 | it now, to make later inclusions of <libintl.h> a NOP. */ |
55 | #if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3) |
56 | # include <cstdlib> |
57 | # if (__GLIBC__ >= 2 && !defined __UCLIBC__) || _GLIBCXX_HAVE_LIBINTL_H |
58 | # include <libintl.h> |
59 | # endif |
60 | #endif |
61 | |
62 | /* Disabled NLS. |
63 | The casts to 'const char *' serve the purpose of producing warnings |
64 | for invalid uses of the value returned from these functions. |
65 | On pre-ANSI systems without 'const', the config.h file is supposed to |
66 | contain "#define const". */ |
67 | # undef gettext |
68 | # define gettext(Msgid) ((const char *) (Msgid)) |
69 | # undef dgettext |
70 | # define dgettext(Domainname, Msgid) ((void) (Domainname), gettext (Msgid)) |
71 | # undef dcgettext |
72 | # define dcgettext(Domainname, Msgid, Category) \ |
73 | ((void) (Category), dgettext (Domainname, Msgid)) |
74 | # undef ngettext |
75 | # define ngettext(Msgid1, Msgid2, N) \ |
76 | ((N) == 1 \ |
77 | ? ((void) (Msgid2), (const char *) (Msgid1)) \ |
78 | : ((void) (Msgid1), (const char *) (Msgid2))) |
79 | # undef dngettext |
80 | # define dngettext(Domainname, Msgid1, Msgid2, N) \ |
81 | ((void) (Domainname), ngettext (Msgid1, Msgid2, N)) |
82 | # undef dcngettext |
83 | # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \ |
84 | ((void) (Category), dngettext (Domainname, Msgid1, Msgid2, N)) |
85 | # undef textdomain |
86 | # define textdomain(Domainname) ((const char *) (Domainname)) |
87 | # undef bindtextdomain |
88 | # define bindtextdomain(Domainname, Dirname) \ |
89 | ((void) (Domainname), (const char *) (Dirname)) |
90 | # undef bind_textdomain_codeset |
91 | # define bind_textdomain_codeset(Domainname, Codeset) \ |
92 | ((void) (Domainname), (const char *) (Codeset)) |
93 | |
94 | #endif |
95 | |
96 | /* Prefer gnulib's setlocale override over libintl's setlocale override. */ |
97 | #ifdef GNULIB_defined_setlocale |
98 | # undef setlocale |
99 | # define setlocale rpl_setlocale |
100 | #endif |
101 | |
102 | /* A pseudo function call that serves as a marker for the automated |
103 | extraction of messages, but does not call gettext(). The run-time |
104 | translation is done at a different place in the code. |
105 | The argument, String, should be a literal string. Concatenated strings |
106 | and other string expressions won't work. |
107 | The macro's expansion is not parenthesized, so that it is suitable as |
108 | initializer for static 'char[]' or 'const char[]' variables. */ |
109 | #define gettext_noop(String) String |
110 | |
111 | /* The separator between msgctxt and msgid in a .mo file. */ |
112 | #define GETTEXT_CONTEXT_GLUE "\004" |
113 | |
114 | /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a |
115 | MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be |
116 | short and rarely need to change. |
117 | The letter 'p' stands for 'particular' or 'special'. */ |
118 | #ifdef DEFAULT_TEXT_DOMAIN |
119 | # define pgettext(Msgctxt, Msgid) \ |
120 | pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) |
121 | #else |
122 | # define pgettext(Msgctxt, Msgid) \ |
123 | pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) |
124 | #endif |
125 | #define dpgettext(Domainname, Msgctxt, Msgid) \ |
126 | pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) |
127 | #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \ |
128 | pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category) |
129 | #ifdef DEFAULT_TEXT_DOMAIN |
130 | # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \ |
131 | npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) |
132 | #else |
133 | # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \ |
134 | npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) |
135 | #endif |
136 | #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \ |
137 | npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) |
138 | #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \ |
139 | npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category) |
140 | |
141 | #ifdef __GNUC__ |
142 | __inline |
143 | #else |
144 | #ifdef __cplusplus |
145 | inline |
146 | #endif |
147 | #endif |
148 | static const char * |
149 | pgettext_aux (const char *domain, |
150 | const char *msg_ctxt_id, const char *msgid, |
151 | int category) |
152 | { |
153 | const char *translation = dcgettext (domain, msg_ctxt_id, category); |
154 | if (translation == msg_ctxt_id) |
155 | return msgid; |
156 | else |
157 | return translation; |
158 | } |
159 | |
160 | #ifdef __GNUC__ |
161 | __inline |
162 | #else |
163 | #ifdef __cplusplus |
164 | inline |
165 | #endif |
166 | #endif |
167 | static const char * |
168 | npgettext_aux (const char *domain, |
169 | const char *msg_ctxt_id, const char *msgid, |
170 | const char *msgid_plural, unsigned long int n, |
171 | int category) |
172 | { |
173 | const char *translation = |
174 | dcngettext (domain, msg_ctxt_id, msgid_plural, n, category); |
175 | if (translation == msg_ctxt_id || translation == msgid_plural) |
176 | return (n == 1 ? msgid : msgid_plural); |
177 | else |
178 | return translation; |
179 | } |
180 | |
181 | /* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID |
182 | can be arbitrary expressions. But for string literals these macros are |
183 | less efficient than those above. */ |
184 | |
185 | #include <string.h> |
186 | |
187 | /* GNULIB_NO_VLA can be defined to disable use of VLAs even if supported. |
188 | This relates to the -Wvla and -Wvla-larger-than warnings, enabled in |
189 | the default GCC many warnings set. This allows programs to disable use |
190 | of VLAs, which may be unintended, or may be awkward to support portably, |
191 | or may have security implications due to non-deterministic stack usage. */ |
192 | |
193 | #if (!defined GNULIB_NO_VLA \ |
194 | && (((__GNUC__ >= 3 || __GNUG__ >= 2) && !defined __STRICT_ANSI__) \ |
195 | /* || (__STDC_VERSION__ == 199901L && !defined __HP_cc) |
196 | || (__STDC_VERSION__ >= 201112L && !defined __STDC_NO_VLA__) */ )) |
197 | # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 1 |
198 | #else |
199 | # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 0 |
200 | #endif |
201 | |
202 | #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS |
203 | #include <stdlib.h> |
204 | #endif |
205 | |
206 | #define pgettext_expr(Msgctxt, Msgid) \ |
207 | dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES) |
208 | #define dpgettext_expr(Domainname, Msgctxt, Msgid) \ |
209 | dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES) |
210 | |
211 | #ifdef __GNUC__ |
212 | __inline |
213 | #else |
214 | #ifdef __cplusplus |
215 | inline |
216 | #endif |
217 | #endif |
218 | static const char * |
219 | dcpgettext_expr (const char *domain, |
220 | const char *msgctxt, const char *msgid, |
221 | int category) |
222 | { |
223 | size_t msgctxt_len = strlen (msgctxt) + 1; |
224 | size_t msgid_len = strlen (msgid) + 1; |
225 | const char *translation; |
226 | #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS |
227 | char msg_ctxt_id[msgctxt_len + msgid_len]; |
228 | #else |
229 | char buf[1024]; |
230 | char *msg_ctxt_id = |
231 | (msgctxt_len + msgid_len <= sizeof (buf) |
232 | ? buf |
233 | : (char *) malloc (msgctxt_len + msgid_len)); |
234 | if (msg_ctxt_id != NULL) |
235 | #endif |
236 | { |
237 | int found_translation; |
238 | memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1); |
239 | msg_ctxt_id[msgctxt_len - 1] = '\004'; |
240 | memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len); |
241 | translation = dcgettext (domain, msg_ctxt_id, category); |
242 | found_translation = (translation != msg_ctxt_id); |
243 | #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS |
244 | if (msg_ctxt_id != buf) |
245 | free (msg_ctxt_id); |
246 | #endif |
247 | if (found_translation) |
248 | return translation; |
249 | } |
250 | return msgid; |
251 | } |
252 | |
253 | #define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \ |
254 | dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES) |
255 | #define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \ |
256 | dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES) |
257 | |
258 | #ifdef __GNUC__ |
259 | __inline |
260 | #else |
261 | #ifdef __cplusplus |
262 | inline |
263 | #endif |
264 | #endif |
265 | static const char * |
266 | dcnpgettext_expr (const char *domain, |
267 | const char *msgctxt, const char *msgid, |
268 | const char *msgid_plural, unsigned long int n, |
269 | int category) |
270 | { |
271 | size_t msgctxt_len = strlen (msgctxt) + 1; |
272 | size_t msgid_len = strlen (msgid) + 1; |
273 | const char *translation; |
274 | #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS |
275 | char msg_ctxt_id[msgctxt_len + msgid_len]; |
276 | #else |
277 | char buf[1024]; |
278 | char *msg_ctxt_id = |
279 | (msgctxt_len + msgid_len <= sizeof (buf) |
280 | ? buf |
281 | : (char *) malloc (msgctxt_len + msgid_len)); |
282 | if (msg_ctxt_id != NULL) |
283 | #endif |
284 | { |
285 | int found_translation; |
286 | memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1); |
287 | msg_ctxt_id[msgctxt_len - 1] = '\004'; |
288 | memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len); |
289 | translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category); |
290 | found_translation = !(translation == msg_ctxt_id || translation == msgid_plural); |
291 | #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS |
292 | if (msg_ctxt_id != buf) |
293 | free (msg_ctxt_id); |
294 | #endif |
295 | if (found_translation) |
296 | return translation; |
297 | } |
298 | return (n == 1 ? msgid : msgid_plural); |
299 | } |
300 | |
301 | #endif /* _LIBGETTEXT_H */ |
302 | |