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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 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 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) ((void) (Domainname), gettext (Msgid))
69# define dcgettext(Domainname, Msgid, Category) \
70 ((void) (Category), dgettext (Domainname, Msgid))
71# define ngettext(Msgid1, Msgid2, N) \
72 ((N) == 1 \
73 ? ((void) (Msgid2), (const char *) (Msgid1)) \
74 : ((void) (Msgid1), (const char *) (Msgid2)))
75# define dngettext(Domainname, Msgid1, Msgid2, N) \
76 ((void) (Domainname), ngettext (Msgid1, Msgid2, N))
77# define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
78 ((void) (Category), dngettext(Domainname, Msgid1, Msgid2, N))
79# define textdomain(Domainname) ((const char *) (Domainname))
80# define bindtextdomain(Domainname, Dirname) \
81 ((void) (Domainname), (const char *) (Dirname))
82# define bind_textdomain_codeset(Domainname, Codeset) \
83 ((void) (Domainname), (const char *) (Codeset))
84
85#endif
86
87/* A pseudo function call that serves as a marker for the automated
88 extraction of messages, but does not call gettext(). The run-time
89 translation is done at a different place in the code.
90 The argument, String, should be a literal string. Concatenated strings
91 and other string expressions won't work.
92 The macro's expansion is not parenthesized, so that it is suitable as
93 initializer for static 'char[]' or 'const char[]' variables. */
94#define gettext_noop(String) String
95
96/* The separator between msgctxt and msgid in a .mo file. */
97#define GETTEXT_CONTEXT_GLUE "\004"
98
99/* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
100 MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be
101 short and rarely need to change.
102 The letter 'p' stands for 'particular' or 'special'. */
103#ifdef DEFAULT_TEXT_DOMAIN
104# define pgettext(Msgctxt, Msgid) \
105 pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
106#else
107# define pgettext(Msgctxt, Msgid) \
108 pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
109#endif
110#define dpgettext(Domainname, Msgctxt, Msgid) \
111 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
112#define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
113 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
114#ifdef DEFAULT_TEXT_DOMAIN
115# define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
116 npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
117#else
118# define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
119 npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
120#endif
121#define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
122 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
123#define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
124 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
125
126#ifdef __GNUC__
127__inline
128#else
129#ifdef __cplusplus
130inline
131#endif
132#endif
133static const char *
134pgettext_aux (const char *domain,
135 const char *msg_ctxt_id, const char *msgid,
136 int category)
137{
138 const char *translation = dcgettext (domain, msg_ctxt_id, category);
139 if (translation == msg_ctxt_id)
140 return msgid;
141 else
142 return translation;
143}
144
145#ifdef __GNUC__
146__inline
147#else
148#ifdef __cplusplus
149inline
150#endif
151#endif
152static const char *
153npgettext_aux (const char *domain,
154 const char *msg_ctxt_id, const char *msgid,
155 const char *msgid_plural, unsigned long int n,
156 int category)
157{
158 const char *translation =
159 dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
160 if (translation == msg_ctxt_id || translation == msgid_plural)
161 return (n == 1 ? msgid : msgid_plural);
162 else
163 return translation;
164}
165
166/* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID
167 can be arbitrary expressions. But for string literals these macros are
168 less efficient than those above. */
169
170#include <string.h>
171
172#define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS \
173 (((__GNUC__ >= 3 || __GNUG__ >= 2) && !__STRICT_ANSI__) \
174 /* || __STDC_VERSION__ >= 199901L */ )
175
176#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
177#include <stdlib.h>
178#endif
179
180#define pgettext_expr(Msgctxt, Msgid) \
181 dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES)
182#define dpgettext_expr(Domainname, Msgctxt, Msgid) \
183 dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES)
184
185#ifdef __GNUC__
186__inline
187#else
188#ifdef __cplusplus
189inline
190#endif
191#endif
192static const char *
193dcpgettext_expr (const char *domain,
194 const char *msgctxt, const char *msgid,
195 int category)
196{
197 size_t msgctxt_len = strlen (msgctxt) + 1;
198 size_t msgid_len = strlen (msgid) + 1;
199 const char *translation;
200#if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
201 char msg_ctxt_id[msgctxt_len + msgid_len];
202#else
203 char buf[1024];
204 char *msg_ctxt_id =
205 (msgctxt_len + msgid_len <= sizeof (buf)
206 ? buf
207 : (char *) malloc (msgctxt_len + msgid_len));
208 if (msg_ctxt_id != NULL)
209#endif
210 {
211 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
212 msg_ctxt_id[msgctxt_len - 1] = '\004';
213 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
214 translation = dcgettext (domain, msg_ctxt_id, category);
215#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
216 if (msg_ctxt_id != buf)
217free (msg_ctxt_id);
218#endif
219 if (translation != msg_ctxt_id)
220return translation;
221 }
222 return msgid;
223}
224
225#define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \
226 dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
227#define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
228 dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
229
230#ifdef __GNUC__
231__inline
232#else
233#ifdef __cplusplus
234inline
235#endif
236#endif
237static const char *
238dcnpgettext_expr (const char *domain,
239 const char *msgctxt, const char *msgid,
240 const char *msgid_plural, unsigned long int n,
241 int category)
242{
243 size_t msgctxt_len = strlen (msgctxt) + 1;
244 size_t msgid_len = strlen (msgid) + 1;
245 const char *translation;
246#if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
247 char msg_ctxt_id[msgctxt_len + msgid_len];
248#else
249 char buf[1024];
250 char *msg_ctxt_id =
251 (msgctxt_len + msgid_len <= sizeof (buf)
252 ? buf
253 : (char *) malloc (msgctxt_len + msgid_len));
254 if (msg_ctxt_id != NULL)
255#endif
256 {
257 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
258 msg_ctxt_id[msgctxt_len - 1] = '\004';
259 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
260 translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
261#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
262 if (msg_ctxt_id != buf)
263free (msg_ctxt_id);
264#endif
265 if (!(translation == msg_ctxt_id || translation == msgid_plural))
266return translation;
267 }
268 return (n == 1 ? msgid : msgid_plural);
269}
270
271#endif /* _LIBGETTEXT_H */

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