1/* Convenience header for conditional use of GNU <libintl.h>.
2 Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2012 Free Software
3 Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1, or (at your option)
8 any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, see <http://www.gnu.org/licenses/>. */
17
18#ifndef _LIBGETTEXT_H
19#define _LIBGETTEXT_H 1
20
21/* NLS can be disabled through the configure --disable-nls option. */
22#if ENABLE_NLS
23
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 && !defined __UCLIBC__) || _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# 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))
92
93#endif
94
95/* Prefer gnulib's setlocale override over libintl's setlocale override. */
96#ifdef GNULIB_defined_setlocale
97# undef setlocale
98# define setlocale rpl_setlocale
99#endif
100
101/* A pseudo function call that serves as a marker for the automated
102 extraction of messages, but does not call gettext(). The run-time
103 translation is done at a different place in the code.
104 The argument, String, should be a literal string. Concatenated strings
105 and other string expressions won't work.
106 The macro's expansion is not parenthesized, so that it is suitable as
107 initializer for static 'char[]' or 'const char[]' variables. */
108#define gettext_noop(String) String
109
110/* The separator between msgctxt and msgid in a .mo file. */
111#define GETTEXT_CONTEXT_GLUE "\004"
112
113/* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
114 MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be
115 short and rarely need to change.
116 The letter 'p' stands for 'particular' or 'special'. */
117#ifdef DEFAULT_TEXT_DOMAIN
118# define pgettext(Msgctxt, Msgid) \
119 pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
120#else
121# define pgettext(Msgctxt, Msgid) \
122 pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
123#endif
124#define dpgettext(Domainname, Msgctxt, Msgid) \
125 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
126#define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
127 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
128#ifdef DEFAULT_TEXT_DOMAIN
129# define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
130 npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
131#else
132# define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
133 npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
134#endif
135#define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
136 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
137#define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
138 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
139
140#ifdef __GNUC__
141__inline
142#else
143#ifdef __cplusplus
144inline
145#endif
146#endif
147static const char *
148pgettext_aux (const char *domain,
149 const char *msg_ctxt_id, const char *msgid,
150 int category)
151{
152 const char *translation = dcgettext (domain, msg_ctxt_id, category);
153 if (translation == msg_ctxt_id)
154 return msgid;
155 else
156 return translation;
157}
158
159#ifdef __GNUC__
160__inline
161#else
162#ifdef __cplusplus
163inline
164#endif
165#endif
166static const char *
167npgettext_aux (const char *domain,
168 const char *msg_ctxt_id, const char *msgid,
169 const char *msgid_plural, unsigned long int n,
170 int category)
171{
172 const char *translation =
173 dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
174 if (translation == msg_ctxt_id || translation == msgid_plural)
175 return (n == 1 ? msgid : msgid_plural);
176 else
177 return translation;
178}
179
180/* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID
181 can be arbitrary expressions. But for string literals these macros are
182 less efficient than those above. */
183
184#include <string.h>
185
186#endif /* _LIBGETTEXT_H */
187