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 2, 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 /* Get declarations of GNU message catalog functions. */
25 # include <libintl.h>
26
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
38
39 #else
40
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
50
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
60
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 # define gettext(Msgid) ((const char *) (Msgid))
67 # define dgettext(Domainname, Msgid) ((const char *) (Msgid))
68 # define dcgettext(Domainname, Msgid, Category) ((const char *) (Msgid))
69 # define ngettext(Msgid1, Msgid2, N) \
70 ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
71 # define dngettext(Domainname, Msgid1, Msgid2, N) \
72 ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
73 # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
74 ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
75 # define textdomain(Domainname) ((const char *) (Domainname))
76 # define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
77 # define bind_textdomain_codeset(Domainname, Codeset) ((const char *) (Codeset))
78
79 #endif
80
81 /* A pseudo function call that serves as a marker for the automated
82 extraction of messages, but does not call gettext(). The run-time
83 translation is done at a different place in the code.
84 The argument, String, should be a literal string. Concatenated strings
85 and other string expressions won't work.
86 The macro's expansion is not parenthesized, so that it is suitable as
87 initializer for static 'char[]' or 'const char[]' variables. */
88 #define gettext_noop(String) String
89
90 /* The separator between msgctxt and msgid in a .mo file. */
91 #define GETTEXT_CONTEXT_GLUE "\004"
92
93 /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
94 MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be
95 short and rarely need to change.
96 The letter 'p' stands for 'particular' or 'special'. */
97 #ifdef DEFAULT_TEXT_DOMAIN
98 # define pgettext(Msgctxt, Msgid) \
99 pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
100 #else
101 # define pgettext(Msgctxt, Msgid) \
102 pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
103 #endif
104 #define dpgettext(Domainname, Msgctxt, Msgid) \
105 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
106 #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
107 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
108 #ifdef DEFAULT_TEXT_DOMAIN
109 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
110 npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
111 #else
112 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
113 npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
114 #endif
115 #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
116 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
117 #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
118 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
119
120 #ifdef __GNUC__
121 __inline
122 #else
123 #ifdef __cplusplus
124 inline
125 #endif
126 #endif
127 static const char *
pgettext_aux(const char * domain,const char * msg_ctxt_id,const char * msgid,int category)128 pgettext_aux (const char *domain,
129 const char *msg_ctxt_id, const char *msgid,
130 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,
150 int category)
151 {
152 const char *translation =
153 dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
154 if (translation == msg_ctxt_id || translation == msgid_plural)
155 return (n == 1 ? msgid : msgid_plural);
156 else
157 return translation;
158 }
159
160 /* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID
161 can be arbitrary expressions. But for string literals these macros are
162 less efficient than those above. */
163
164 #include <string.h>
165
166 #define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS \
167 (__GNUC__ >= 3 || __GNUG__ >= 2 /* || __STDC_VERSION__ >= 199901L */ )
168
169 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
170 #include <stdlib.h>
171 #endif
172
173 #define pgettext_expr(Msgctxt, Msgid) \
174 dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES)
175 #define dpgettext_expr(Domainname, Msgctxt, Msgid) \
176 dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES)
177
178 #ifdef __GNUC__
179 __inline
180 #else
181 #ifdef __cplusplus
182 inline
183 #endif
184 #endif
185 static const char *
dcpgettext_expr(const char * domain,const char * msgctxt,const char * msgid,int category)186 dcpgettext_expr (const char *domain,
187 const char *msgctxt, const char *msgid,
188 int category)
189 {
190 size_t msgctxt_len = strlen (msgctxt) + 1;
191 size_t msgid_len = strlen (msgid) + 1;
192 const char *translation;
193 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
194 char msg_ctxt_id[msgctxt_len + msgid_len];
195 #else
196 char buf[1024];
197 char *msg_ctxt_id =
198 (msgctxt_len + msgid_len <= sizeof (buf)
199 ? buf
200 : (char *) malloc (msgctxt_len + msgid_len));
201 if (msg_ctxt_id != NULL)
202 #endif
203 {
204 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
205 msg_ctxt_id[msgctxt_len - 1] = '\004';
206 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
207 translation = dcgettext (domain, msg_ctxt_id, category);
208 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
209 if (msg_ctxt_id != buf)
210 free (msg_ctxt_id);
211 #endif
212 if (translation != msg_ctxt_id)
213 return translation;
214 }
215 return msgid;
216 }
217
218 #define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \
219 dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
220 #define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
221 dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
222
223 #ifdef __GNUC__
224 __inline
225 #else
226 #ifdef __cplusplus
227 inline
228 #endif
229 #endif
230 static const char *
dcnpgettext_expr(const char * domain,const char * msgctxt,const char * msgid,const char * msgid_plural,unsigned long int n,int category)231 dcnpgettext_expr (const char *domain,
232 const char *msgctxt, const char *msgid,
233 const char *msgid_plural, unsigned long int n,
234 int category)
235 {
236 size_t msgctxt_len = strlen (msgctxt) + 1;
237 size_t msgid_len = strlen (msgid) + 1;
238 const char *translation;
239 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
240 char msg_ctxt_id[msgctxt_len + msgid_len];
241 #else
242 char buf[1024];
243 char *msg_ctxt_id =
244 (msgctxt_len + msgid_len <= sizeof (buf)
245 ? buf
246 : (char *) malloc (msgctxt_len + msgid_len));
247 if (msg_ctxt_id != NULL)
248 #endif
249 {
250 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
251 msg_ctxt_id[msgctxt_len - 1] = '\004';
252 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
253 translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
254 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
255 if (msg_ctxt_id != buf)
256 free (msg_ctxt_id);
257 #endif
258 if (!(translation == msg_ctxt_id || translation == msgid_plural))
259 return translation;
260 }
261 return (n == 1 ? msgid : msgid_plural);
262 }
263
264 #endif /* _LIBGETTEXT_H */
265