1 /* Convenience header for conditional use of GNU <libintl.h>.
2 Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3, or (at your option)
7 any later version.
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.
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 #ifndef _LIBGETTEXT_H
19 #define _LIBGETTEXT_H 1
21 /* NLS can be disabled through the configure --disable-nls option. */
22 #if ENABLE_NLS
24 /* Get declarations of GNU message catalog functions. */
25 # include <libintl.h>
27 /* You can set the DEFAULT_TEXT_DOMAIN macro to specify the domain used by
28 the gettext() and ngettext() macros. This is an alternative to calling
29 textdomain(), and is useful for libraries. */
30 # ifdef DEFAULT_TEXT_DOMAIN
31 # undef gettext
32 # define gettext(Msgid) \
33 dgettext (DEFAULT_TEXT_DOMAIN, Msgid)
34 # undef ngettext
35 # define ngettext(Msgid1, Msgid2, N) \
36 dngettext (DEFAULT_TEXT_DOMAIN, Msgid1, Msgid2, N)
37 # endif
39 #else
41 /* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which
42 chokes if dcgettext is defined as a macro. So include it now, to make
43 later inclusions of <locale.h> a NOP. We don't include <libintl.h>
44 as well because people using "gettext.h" will not include <libintl.h>,
45 and also including <libintl.h> would fail on SunOS 4, whereas <locale.h>
46 is OK. */
47 #if defined(__sun)
48 # include <locale.h>
49 #endif
51 /* Many header files from the libstdc++ coming with g++ 3.3 or newer include
52 <libintl.h>, which chokes if dcgettext is defined as a macro. So include
53 it now, to make later inclusions of <libintl.h> a NOP. */
54 #if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3)
55 # include <cstdlib>
56 # if (__GLIBC__ >= 2) || _GLIBCXX_HAVE_LIBINTL_H
57 # include <libintl.h>
58 # endif
59 #endif
61 /* Disabled NLS.
62 The casts to 'const char *' serve the purpose of producing warnings
63 for invalid uses of the value returned from these functions.
64 On pre-ANSI systems without 'const', the config.h file is supposed to
65 contain "#define const". */
66 # undef gettext
67 # define gettext(Msgid) ((const char *) (Msgid))
68 # undef dgettext
69 # define dgettext(Domainname, Msgid) ((void) (Domainname), gettext (Msgid))
70 # undef dcgettext
71 # define dcgettext(Domainname, Msgid, Category) \
72 ((void) (Category), dgettext (Domainname, Msgid))
73 # undef ngettext
74 # define ngettext(Msgid1, Msgid2, N) \
75 ((N) == 1 \
76 ? ((void) (Msgid2), (const char *) (Msgid1)) \
77 : ((void) (Msgid1), (const char *) (Msgid2)))
78 # undef dngettext
79 # define dngettext(Domainname, Msgid1, Msgid2, N) \
80 ((void) (Domainname), ngettext (Msgid1, Msgid2, N))
81 # undef dcngettext
82 # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
83 ((void) (Category), dngettext(Domainname, Msgid1, Msgid2, N))
84 # undef textdomain
85 # define textdomain(Domainname) ((const char *) (Domainname))
86 # undef bindtextdomain
87 # define bindtextdomain(Domainname, Dirname) \
88 ((void) (Domainname), (const char *) (Dirname))
89 # undef bind_textdomain_codeset
90 # define bind_textdomain_codeset(Domainname, Codeset) \
91 ((void) (Domainname), (const char *) (Codeset))
93 #endif
95 /* A pseudo function call that serves as a marker for the automated
96 extraction of messages, but does not call gettext(). The run-time
97 translation is done at a different place in the code.
98 The argument, String, should be a literal string. Concatenated strings
99 and other string expressions won't work.
100 The macro's expansion is not parenthesized, so that it is suitable as
101 initializer for static 'char[]' or 'const char[]' variables. */
102 #define gettext_noop(String) String
104 /* The separator between msgctxt and msgid in a .mo file. */
105 #define GETTEXT_CONTEXT_GLUE "\004"
107 /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
108 MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be
109 short and rarely need to change.
110 The letter 'p' stands for 'particular' or 'special'. */
111 #ifdef DEFAULT_TEXT_DOMAIN
112 # define pgettext(Msgctxt, Msgid) \
113 pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
114 #else
115 # define pgettext(Msgctxt, Msgid) \
116 pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
117 #endif
118 #define dpgettext(Domainname, Msgctxt, Msgid) \
119 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
120 #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
121 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
122 #ifdef DEFAULT_TEXT_DOMAIN
123 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
124 npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
125 #else
126 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
127 npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
128 #endif
129 #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
130 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
131 #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
132 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
134 #ifdef __GNUC__
135 __inline
136 #else
137 #ifdef __cplusplus
138 inline
139 #endif
140 #endif
141 static const char *
142 pgettext_aux (const char *domain,
143 const char *msg_ctxt_id, const char *msgid,
144 int category)
145 {
146 const char *translation = dcgettext (domain, msg_ctxt_id, category);
147 if (translation == msg_ctxt_id)
148 return msgid;
149 else
150 return translation;
151 }
153 #ifdef __GNUC__
154 __inline
155 #else
156 #ifdef __cplusplus
157 inline
158 #endif
159 #endif
160 static const char *
161 npgettext_aux (const char *domain,
162 const char *msg_ctxt_id, const char *msgid,
163 const char *msgid_plural, unsigned long int n,
164 int category)
165 {
166 const char *translation =
167 dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
168 if (translation == msg_ctxt_id || translation == msgid_plural)
169 return (n == 1 ? msgid : msgid_plural);
170 else
171 return translation;
172 }
174 /* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID
175 can be arbitrary expressions. But for string literals these macros are
176 less efficient than those above. */
178 #include <string.h>
180 #define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS \
181 (((__GNUC__ >= 3 || __GNUG__ >= 2) && !__STRICT_ANSI__) \
182 /* || __STDC_VERSION__ >= 199901L */ )
184 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
185 #include <stdlib.h>
186 #endif
188 #define pgettext_expr(Msgctxt, Msgid) \
189 dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES)
190 #define dpgettext_expr(Domainname, Msgctxt, Msgid) \
191 dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES)
193 #ifdef __GNUC__
194 __inline
195 #else
196 #ifdef __cplusplus
197 inline
198 #endif
199 #endif
200 static const char *
201 dcpgettext_expr (const char *domain,
202 const char *msgctxt, const char *msgid,
203 int category)
204 {
205 size_t msgctxt_len = strlen (msgctxt) + 1;
206 size_t msgid_len = strlen (msgid) + 1;
207 const char *translation;
208 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
209 char msg_ctxt_id[msgctxt_len + msgid_len];
210 #else
211 char buf[1024];
212 char *msg_ctxt_id =
213 (msgctxt_len + msgid_len <= sizeof (buf)
214 ? buf
215 : (char *) malloc (msgctxt_len + msgid_len));
216 if (msg_ctxt_id != NULL)
217 #endif
218 {
219 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
220 msg_ctxt_id[msgctxt_len - 1] = '\004';
221 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
222 translation = dcgettext (domain, msg_ctxt_id, category);
223 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
224 if (msg_ctxt_id != buf)
225 free (msg_ctxt_id);
226 #endif
227 if (translation != msg_ctxt_id)
228 return translation;
229 }
230 return msgid;
231 }
233 #define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \
234 dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
235 #define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
236 dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
238 #ifdef __GNUC__
239 __inline
240 #else
241 #ifdef __cplusplus
242 inline
243 #endif
244 #endif
245 static const char *
246 dcnpgettext_expr (const char *domain,
247 const char *msgctxt, const char *msgid,
248 const char *msgid_plural, unsigned long int n,
249 int category)
250 {
251 size_t msgctxt_len = strlen (msgctxt) + 1;
252 size_t msgid_len = strlen (msgid) + 1;
253 const char *translation;
254 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
255 char msg_ctxt_id[msgctxt_len + msgid_len];
256 #else
257 char buf[1024];
258 char *msg_ctxt_id =
259 (msgctxt_len + msgid_len <= sizeof (buf)
260 ? buf
261 : (char *) malloc (msgctxt_len + msgid_len));
262 if (msg_ctxt_id != NULL)
263 #endif
264 {
265 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
266 msg_ctxt_id[msgctxt_len - 1] = '\004';
267 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
268 translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
269 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
270 if (msg_ctxt_id != buf)
271 free (msg_ctxt_id);
272 #endif
273 if (!(translation == msg_ctxt_id || translation == msgid_plural))
274 return translation;
275 }
276 return (n == 1 ? msgid : msgid_plural);
277 }
279 #endif /* _LIBGETTEXT_H */