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