1/* Message catalogs for internationalization.
2   Copyright (C) 1995-1997, 2000-2003 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 _LIBINTL_H
20#define _LIBINTL_H	1
21
22#include <locale.h>
23
24/* The LC_MESSAGES locale category is the category used by the functions
25   gettext() and dgettext().  It is specified in POSIX, but not in ANSI C.
26   On systems that don't define it, use an arbitrary value instead.
27   On Solaris, <locale.h> defines __LOCALE_H (or _LOCALE_H in Solaris 2.5)
28   then includes <libintl.h> (i.e. this file!) and then only defines
29   LC_MESSAGES.  To avoid a redefinition warning, don't define LC_MESSAGES
30   in this case.  */
31#if !defined LC_MESSAGES && !(defined __LOCALE_H || (defined _LOCALE_H && defined __sun))
32# define LC_MESSAGES 1729
33#endif
34
35/* We define an additional symbol to signal that we use the GNU
36   implementation of gettext.  */
37#define __USE_GNU_GETTEXT 1
38
39/* Provide information about the supported file formats.  Returns the
40   maximum minor revision number supported for a given major revision.  */
41#define __GNU_GETTEXT_SUPPORTED_REVISION(major) \
42  ((major) == 0 ? 1 : -1)
43
44/* Resolve a platform specific conflict on DJGPP.  GNU gettext takes
45   precedence over _conio_gettext.  */
46#ifdef __DJGPP__
47# undef gettext
48#endif
49
50/* Use _INTL_PARAMS, not PARAMS, in order to avoid clashes with identifiers
51   used by programs.  Similarly, test __PROTOTYPES, not PROTOTYPES.  */
52#ifndef _INTL_PARAMS
53# if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES
54#  define _INTL_PARAMS(args) args
55# else
56#  define _INTL_PARAMS(args) ()
57# endif
58#endif
59
60#ifdef __cplusplus
61extern "C" {
62#endif
63
64
65/* We redirect the functions to those prefixed with "libintl_".  This is
66   necessary, because some systems define gettext/textdomain/... in the C
67   library (namely, Solaris 2.4 and newer, and GNU libc 2.0 and newer).
68   If we used the unprefixed names, there would be cases where the
69   definition in the C library would override the one in the libintl.so
70   shared library.  Recall that on ELF systems, the symbols are looked
71   up in the following order:
72     1. in the executable,
73     2. in the shared libraries specified on the link command line, in order,
74     3. in the dependencies of the shared libraries specified on the link
75        command line,
76     4. in the dlopen()ed shared libraries, in the order in which they were
77        dlopen()ed.
78   The definition in the C library would override the one in libintl.so if
79   either
80     * -lc is given on the link command line and -lintl isn't, or
81     * -lc is given on the link command line before -lintl, or
82     * libintl.so is a dependency of a dlopen()ed shared library but not
83       linked to the executable at link time.
84   Since Solaris gettext() behaves differently than GNU gettext(), this
85   would be unacceptable.
86
87   The redirection happens by default through macros in C, so that &gettext
88   is independent of the compilation unit, but through inline functions in
89   C++, in order not to interfere with the name mangling of class fields or
90   class methods called 'gettext'.  */
91
92/* The user can define _INTL_REDIRECT_INLINE or _INTL_REDIRECT_MACROS.
93   If he doesn't, we choose the method.  A third possible method is
94   _INTL_REDIRECT_ASM, supported only by GCC.  */
95#if !(defined _INTL_REDIRECT_INLINE || defined _INTL_REDIRECT_MACROS)
96# if __GNUC__ >= 2 && !defined __APPLE_CC__ && (defined __STDC__ || defined __cplusplus)
97#  define _INTL_REDIRECT_ASM
98# else
99#  ifdef __cplusplus
100#   define _INTL_REDIRECT_INLINE
101#  else
102#   define _INTL_REDIRECT_MACROS
103#  endif
104# endif
105#endif
106/* Auxiliary macros.  */
107#ifdef _INTL_REDIRECT_ASM
108# define _INTL_ASM(cname) __asm__ (_INTL_ASMNAME (__USER_LABEL_PREFIX__, #cname))
109# define _INTL_ASMNAME(prefix,cnamestring) _INTL_STRINGIFY (prefix) cnamestring
110# define _INTL_STRINGIFY(prefix) #prefix
111#else
112# define _INTL_ASM(cname)
113#endif
114
115/* _INTL_MAY_RETURN_STRING_ARG(n) declares that the given function may return
116   its n-th argument literally.  This enables GCC to warn for example about
117   printf (gettext ("foo %y")).  */
118#if defined __GNUC__ && __GNUC__ >= 3 && !(defined __APPLE_CC__ && __APPLE_CC__ > 1 && !(defined __clang__ && __clang__ && __clang_major__ >= 3) && defined __cplusplus)
119# define _INTL_MAY_RETURN_STRING_ARG(n) __attribute__ ((__format_arg__ (n)))
120#else
121# define _INTL_MAY_RETURN_STRING_ARG(n)
122#endif
123
124/* Look up MSGID in the current default message catalog for the current
125   LC_MESSAGES locale.  If not found, returns MSGID itself (the default
126   text).  */
127#ifdef _INTL_REDIRECT_INLINE
128extern char *libintl_gettext (const char *__msgid)
129       _INTL_MAY_RETURN_STRING_ARG (1);
130static inline
131_INTL_MAY_RETURN_STRING_ARG (1)
132char *gettext (const char *__msgid)
133{
134  return libintl_gettext (__msgid);
135}
136#else
137#ifdef _INTL_REDIRECT_MACROS
138# define gettext libintl_gettext
139#endif
140extern char *gettext _INTL_PARAMS ((const char *__msgid))
141       _INTL_ASM (libintl_gettext)
142       _INTL_MAY_RETURN_STRING_ARG (1);
143#endif
144
145/* Look up MSGID in the DOMAINNAME message catalog for the current
146   LC_MESSAGES locale.  */
147#ifdef _INTL_REDIRECT_INLINE
148extern char *libintl_dgettext (const char *__domainname, const char *__msgid)
149       _INTL_MAY_RETURN_STRING_ARG (2);
150static inline
151_INTL_MAY_RETURN_STRING_ARG (2)
152char *dgettext (const char *__domainname, const char *__msgid)
153{
154  return libintl_dgettext (__domainname, __msgid);
155}
156#else
157#ifdef _INTL_REDIRECT_MACROS
158# define dgettext libintl_dgettext
159#endif
160extern char *dgettext _INTL_PARAMS ((const char *__domainname,
161				     const char *__msgid))
162       _INTL_ASM (libintl_dgettext)
163       _INTL_MAY_RETURN_STRING_ARG (2);
164#endif
165
166/* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY
167   locale.  */
168#ifdef _INTL_REDIRECT_INLINE
169extern char *libintl_dcgettext (const char *__domainname, const char *__msgid,
170				int __category)
171       _INTL_MAY_RETURN_STRING_ARG (2);
172static inline
173_INTL_MAY_RETURN_STRING_ARG (2)
174char *dcgettext (const char *__domainname, const char *__msgid, int __category)
175{
176  return libintl_dcgettext (__domainname, __msgid, __category);
177}
178#else
179#ifdef _INTL_REDIRECT_MACROS
180# define dcgettext libintl_dcgettext
181#endif
182extern char *dcgettext _INTL_PARAMS ((const char *__domainname,
183				      const char *__msgid,
184				      int __category))
185       _INTL_ASM (libintl_dcgettext)
186       _INTL_MAY_RETURN_STRING_ARG (2);
187#endif
188
189
190/* Similar to `gettext' but select the plural form corresponding to the
191   number N.  */
192#ifdef _INTL_REDIRECT_INLINE
193extern char *libintl_ngettext (const char *__msgid1, const char *__msgid2,
194			       unsigned long int __n)
195       _INTL_MAY_RETURN_STRING_ARG (1) _INTL_MAY_RETURN_STRING_ARG (2);
196static inline
197_INTL_MAY_RETURN_STRING_ARG (1) _INTL_MAY_RETURN_STRING_ARG (2)
198char *ngettext (const char *__msgid1, const char *__msgid2,
199		unsigned long int __n)
200{
201  return libintl_ngettext (__msgid1, __msgid2, __n);
202}
203#else
204#ifdef _INTL_REDIRECT_MACROS
205# define ngettext libintl_ngettext
206#endif
207extern char *ngettext _INTL_PARAMS ((const char *__msgid1,
208				     const char *__msgid2,
209				     unsigned long int __n))
210       _INTL_ASM (libintl_ngettext)
211       _INTL_MAY_RETURN_STRING_ARG (1) _INTL_MAY_RETURN_STRING_ARG (2);
212#endif
213
214/* Similar to `dgettext' but select the plural form corresponding to the
215   number N.  */
216#ifdef _INTL_REDIRECT_INLINE
217extern char *libintl_dngettext (const char *__domainname, const char *__msgid1,
218				const char *__msgid2, unsigned long int __n)
219       _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3);
220static inline
221_INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3)
222char *dngettext (const char *__domainname, const char *__msgid1,
223		 const char *__msgid2, unsigned long int __n)
224{
225  return libintl_dngettext (__domainname, __msgid1, __msgid2, __n);
226}
227#else
228#ifdef _INTL_REDIRECT_MACROS
229# define dngettext libintl_dngettext
230#endif
231extern char *dngettext _INTL_PARAMS ((const char *__domainname,
232				      const char *__msgid1,
233				      const char *__msgid2,
234				      unsigned long int __n))
235       _INTL_ASM (libintl_dngettext)
236       _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3);
237#endif
238
239/* Similar to `dcgettext' but select the plural form corresponding to the
240   number N.  */
241#ifdef _INTL_REDIRECT_INLINE
242extern char *libintl_dcngettext (const char *__domainname,
243				 const char *__msgid1, const char *__msgid2,
244				 unsigned long int __n, int __category)
245       _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3);
246static inline
247_INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3)
248char *dcngettext (const char *__domainname,
249		  const char *__msgid1, const char *__msgid2,
250		  unsigned long int __n, int __category)
251{
252  return libintl_dcngettext (__domainname, __msgid1, __msgid2, __n, __category);
253}
254#else
255#ifdef _INTL_REDIRECT_MACROS
256# define dcngettext libintl_dcngettext
257#endif
258extern char *dcngettext _INTL_PARAMS ((const char *__domainname,
259				       const char *__msgid1,
260				       const char *__msgid2,
261				       unsigned long int __n,
262				       int __category))
263       _INTL_ASM (libintl_dcngettext)
264       _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3);
265#endif
266
267
268/* Set the current default message catalog to DOMAINNAME.
269   If DOMAINNAME is null, return the current default.
270   If DOMAINNAME is "", reset to the default of "messages".  */
271#ifdef _INTL_REDIRECT_INLINE
272extern char *libintl_textdomain (const char *__domainname);
273static inline char *textdomain (const char *__domainname)
274{
275  return libintl_textdomain (__domainname);
276}
277#else
278#ifdef _INTL_REDIRECT_MACROS
279# define textdomain libintl_textdomain
280#endif
281extern char *textdomain _INTL_PARAMS ((const char *__domainname))
282       _INTL_ASM (libintl_textdomain);
283#endif
284
285/* Specify that the DOMAINNAME message catalog will be found
286   in DIRNAME rather than in the system locale data base.  */
287#ifdef _INTL_REDIRECT_INLINE
288extern char *libintl_bindtextdomain (const char *__domainname,
289				     const char *__dirname);
290static inline char *bindtextdomain (const char *__domainname,
291				    const char *__dirname)
292{
293  return libintl_bindtextdomain (__domainname, __dirname);
294}
295#else
296#ifdef _INTL_REDIRECT_MACROS
297# define bindtextdomain libintl_bindtextdomain
298#endif
299extern char *bindtextdomain _INTL_PARAMS ((const char *__domainname,
300					   const char *__dirname))
301       _INTL_ASM (libintl_bindtextdomain);
302#endif
303
304/* Specify the character encoding in which the messages from the
305   DOMAINNAME message catalog will be returned.  */
306#ifdef _INTL_REDIRECT_INLINE
307extern char *libintl_bind_textdomain_codeset (const char *__domainname,
308					      const char *__codeset);
309static inline char *bind_textdomain_codeset (const char *__domainname,
310					     const char *__codeset)
311{
312  return libintl_bind_textdomain_codeset (__domainname, __codeset);
313}
314#else
315#ifdef _INTL_REDIRECT_MACROS
316# define bind_textdomain_codeset libintl_bind_textdomain_codeset
317#endif
318extern char *bind_textdomain_codeset _INTL_PARAMS ((const char *__domainname,
319						    const char *__codeset))
320       _INTL_ASM (libintl_bind_textdomain_codeset);
321#endif
322
323
324/* Support for relocatable packages.  */
325
326/* Sets the original and the current installation prefix of the package.
327   Relocation simply replaces a pathname starting with the original prefix
328   by the corresponding pathname with the current prefix instead.  Both
329   prefixes should be directory names without trailing slash (i.e. use ""
330   instead of "/").  */
331#define libintl_set_relocation_prefix libintl_set_relocation_prefix
332extern void
333       libintl_set_relocation_prefix _INTL_PARAMS ((const char *orig_prefix,
334						    const char *curr_prefix));
335
336
337#ifdef __cplusplus
338}
339#endif
340
341#endif /* libintl.h */
342