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 Library General Public License as published
6 by the Free Software Foundation; either version 3, or (at your option)
7 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 GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public
15 License along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17 USA. */
18
19 #ifndef _LIBGETTEXT_H
20 #define _LIBGETTEXT_H 1
21
22 /* NLS can be disabled through the configure --disable-nls option. */
23 #if 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) || _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 # define gettext(Msgid) ((const char *) (Msgid))
68 # define dgettext(Domainname, Msgid) ((const char *) (Msgid))
69 # define dcgettext(Domainname, Msgid, Category) ((const char *) (Msgid))
70 # define ngettext(Msgid1, Msgid2, N) \
71 ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
72 # define dngettext(Domainname, Msgid1, Msgid2, N) \
73 ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
74 # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
75 ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
76 # define textdomain(Domainname) ((const char *) (Domainname))
77 # define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
78 # define bind_textdomain_codeset(Domainname, Codeset) ((const char *) (Codeset))
79
80 #endif
81
82 /* A pseudo function call that serves as a marker for the automated
83 extraction of messages, but does not call gettext(). The run-time
84 translation is done at a different place in the code.
85 The argument, String, should be a literal string. Concatenated strings
86 and other string expressions won't work.
87 The macro's expansion is not parenthesized, so that it is suitable as
88 initializer for static 'char[]' or 'const char[]' variables. */
89 #define gettext_noop(String) String
90
91 /* The separator between msgctxt and msgid in a .mo file. */
92 #define GETTEXT_CONTEXT_GLUE "\004"
93
94 /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
95 MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be
96 short and rarely need to change.
97 The letter 'p' stands for 'particular' or 'special'. */
98 #ifdef DEFAULT_TEXT_DOMAIN
99 # define pgettext(Msgctxt, Msgid) \
100 pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
101 #else
102 # define pgettext(Msgctxt, Msgid) \
103 pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
104 #endif
105 #define dpgettext(Domainname, Msgctxt, Msgid) \
106 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
107 #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
108 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
109 #ifdef DEFAULT_TEXT_DOMAIN
110 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
111 npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
112 #else
113 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
114 npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
115 #endif
116 #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
117 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
118 #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
119 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
120
121 #ifdef __GNUC__
122 __inline
123 #else
124 #ifdef __cplusplus
125 inline
126 #endif
127 #endif
128 static const char *
pgettext_aux(const char * domain,const char * msg_ctxt_id,const char * msgid,int category)129 pgettext_aux (const char *domain,
130 const char *msg_ctxt_id, const char *msgid, int category)
131 {
132 const char *translation = dcgettext (domain, msg_ctxt_id, category);
133 if (translation == msg_ctxt_id)
134 return msgid;
135 else
136 return translation;
137 }
138
139 #ifdef __GNUC__
140 __inline
141 #else
142 #ifdef __cplusplus
143 inline
144 #endif
145 #endif
146 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)147 npgettext_aux (const char *domain,
148 const char *msg_ctxt_id, const char *msgid,
149 const char *msgid_plural, unsigned long int n, int category)
150 {
151 const char *translation =
152 dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
153 if (translation == msg_ctxt_id || translation == msgid_plural)
154 return (n == 1 ? msgid : msgid_plural);
155 else
156 return translation;
157 }
158
159 /* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID
160 can be arbitrary expressions. But for string literals these macros are
161 less efficient than those above. */
162
163 #include <string.h>
164
165 #define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS \
166 (__GNUC__ >= 3 || __GNUG__ >= 2 /* || __STDC_VERSION__ >= 199901L */ )
167
168 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
169 #include <stdlib.h>
170 #endif
171
172 #define pgettext_expr(Msgctxt, Msgid) \
173 dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES)
174 #define dpgettext_expr(Domainname, Msgctxt, Msgid) \
175 dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES)
176
177 #ifdef __GNUC__
178 __inline
179 #else
180 #ifdef __cplusplus
181 inline
182 #endif
183 #endif
184 static const char *
dcpgettext_expr(const char * domain,const char * msgctxt,const char * msgid,int category)185 dcpgettext_expr (const char *domain,
186 const char *msgctxt, const char *msgid, int category)
187 {
188 size_t msgctxt_len = strlen (msgctxt) + 1;
189 size_t msgid_len = strlen (msgid) + 1;
190 const char *translation;
191 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
192 char msg_ctxt_id[msgctxt_len + msgid_len];
193 #else
194 char buf[1024];
195 char *msg_ctxt_id =
196 (msgctxt_len + msgid_len <= sizeof (buf)
197 ? buf : (char *) malloc (msgctxt_len + msgid_len));
198 if (msg_ctxt_id != NULL)
199 #endif
200 {
201 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
202 msg_ctxt_id[msgctxt_len - 1] = '\004';
203 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
204 translation = dcgettext (domain, msg_ctxt_id, category);
205 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
206 if (msg_ctxt_id != buf)
207 free (msg_ctxt_id);
208 #endif
209 if (translation != msg_ctxt_id)
210 return translation;
211 }
212 return msgid;
213 }
214
215 #define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \
216 dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
217 #define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
218 dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
219
220 #ifdef __GNUC__
221 __inline
222 #else
223 #ifdef __cplusplus
224 inline
225 #endif
226 #endif
227 static const char *
dcnpgettext_expr(const char * domain,const char * msgctxt,const char * msgid,const char * msgid_plural,unsigned long int n,int category)228 dcnpgettext_expr (const char *domain,
229 const char *msgctxt, const char *msgid,
230 const char *msgid_plural, unsigned long int n, int category)
231 {
232 size_t msgctxt_len = strlen (msgctxt) + 1;
233 size_t msgid_len = strlen (msgid) + 1;
234 const char *translation;
235 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
236 char msg_ctxt_id[msgctxt_len + msgid_len];
237 #else
238 char buf[1024];
239 char *msg_ctxt_id =
240 (msgctxt_len + msgid_len <= sizeof (buf)
241 ? buf : (char *) malloc (msgctxt_len + msgid_len));
242 if (msg_ctxt_id != NULL)
243 #endif
244 {
245 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
246 msg_ctxt_id[msgctxt_len - 1] = '\004';
247 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
248 translation =
249 dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
250 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
251 if (msg_ctxt_id != buf)
252 free (msg_ctxt_id);
253 #endif
254 if (!(translation == msg_ctxt_id || translation == msgid_plural))
255 return translation;
256 }
257 return (n == 1 ? msgid : msgid_plural);
258 }
259
260 #endif /* _LIBGETTEXT_H */
261