eid-viewer
eid-viewer library
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gettext.h
1
2/* Convenience header for conditional use of GNU <libintl.h>.
3 Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009 Free Software Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, 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 GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU General Public
16 License along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
18 USA. */
19
20#ifndef _LIBGETTEXT_H
21#define _LIBGETTEXT_H 1
22
23/* NLS can be disabled through the configure --disable-nls option. */
24#if ENABLE_NLS
25
26/* Get declarations of GNU message catalog functions. */
27#include <libintl.h>
28
29/* You can set the DEFAULT_TEXT_DOMAIN macro to specify the domain used by
30 the gettext() and ngettext() macros. This is an alternative to calling
31 textdomain(), and is useful for libraries. */
32#ifdef DEFAULT_TEXT_DOMAIN
33#undef gettext
34#define gettext(Msgid) \
35 dgettext (DEFAULT_TEXT_DOMAIN, Msgid)
36#undef ngettext
37#define ngettext(Msgid1, Msgid2, N) \
38 dngettext (DEFAULT_TEXT_DOMAIN, Msgid1, Msgid2, N)
39#endif
40
41#else
42
43/* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which
44 chokes if dcgettext is defined as a macro. So include it now, to make
45 later inclusions of <locale.h> a NOP. We don't include <libintl.h>
46 as well because people using "gettext.h" will not include <libintl.h>,
47 and also including <libintl.h> would fail on SunOS 4, whereas <locale.h>
48 is OK. */
49#if defined(__sun)
50#include <locale.h>
51#endif
52
53/* Many header files from the libstdc++ coming with g++ 3.3 or newer include
54 <libintl.h>, which chokes if dcgettext is defined as a macro. So include
55 it now, to make later inclusions of <libintl.h> a NOP. */
56#if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3)
57#include <cstdlib>
58#if (__GLIBC__ >= 2) || _GLIBCXX_HAVE_LIBINTL_H
59#include <libintl.h>
60#endif
61#endif
62
63/* Disabled NLS.
64 The casts to 'const char *' serve the purpose of producing warnings
65 for invalid uses of the value returned from these functions.
66 On pre-ANSI systems without 'const', the config.h file is supposed to
67 contain "#define const". */
68#undef gettext
69#define gettext(Msgid) ((const char *) (Msgid))
70#undef dgettext
71#define dgettext(Domainname, Msgid) ((void) (Domainname), gettext (Msgid))
72#undef dcgettext
73#define dcgettext(Domainname, Msgid, Category) \
74 ((void) (Category), dgettext (Domainname, Msgid))
75#undef ngettext
76#define ngettext(Msgid1, Msgid2, N) \
77 ((N) == 1 \
78 ? ((void) (Msgid2), (const char *) (Msgid1)) \
79 : ((void) (Msgid1), (const char *) (Msgid2)))
80#undef dngettext
81#define dngettext(Domainname, Msgid1, Msgid2, N) \
82 ((void) (Domainname), ngettext (Msgid1, Msgid2, N))
83#undef dcngettext
84#define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
85 ((void) (Category), dngettext(Domainname, Msgid1, Msgid2, N))
86#undef textdomain
87#define textdomain(Domainname) ((const char *) (Domainname))
88#undef bindtextdomain
89#define bindtextdomain(Domainname, Dirname) \
90 ((void) (Domainname), (const char *) (Dirname))
91#undef bind_textdomain_codeset
92#define bind_textdomain_codeset(Domainname, Codeset) \
93 ((void) (Domainname), (const char *) (Codeset))
94
95#endif
96
97/* A pseudo function call that serves as a marker for the automated
98 extraction of messages, but does not call gettext(). The run-time
99 translation is done at a different place in the code.
100 The argument, String, should be a literal string. Concatenated strings
101 and other string expressions won't work.
102 The macro's expansion is not parenthesized, so that it is suitable as
103 initializer for static 'char[]' or 'const char[]' variables. */
104#define gettext_noop(String) String
105
106/* The separator between msgctxt and msgid in a .mo file. */
107#define GETTEXT_CONTEXT_GLUE "\004"
108
109/* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
110 MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be
111 short and rarely need to change.
112 The letter 'p' stands for 'particular' or 'special'. */
113#ifdef DEFAULT_TEXT_DOMAIN
114#define pgettext(Msgctxt, Msgid) \
115 pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
116#else
117#define pgettext(Msgctxt, Msgid) \
118 pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
119#endif
120#define dpgettext(Domainname, Msgctxt, Msgid) \
121 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
122#define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
123 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
124#ifdef DEFAULT_TEXT_DOMAIN
125#define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
126 npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
127#else
128#define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
129 npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
130#endif
131#define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
132 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
133#define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
134 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
135
136#ifdef __GNUC__
137__inline
138#else
139#ifdef __cplusplus
140inline
141#endif
142#endif
143static const char *pgettext_aux(const char *domain,
144 const char *msg_ctxt_id, const char *msgid,
145 int category)
146{
147 const char *translation = dcgettext(domain, msg_ctxt_id, category);
148
149 if (translation == msg_ctxt_id)
150 return msgid;
151 else
152 return translation;
153}
154
155#ifdef __GNUC__
156__inline
157#else
158#ifdef __cplusplus
159inline
160#endif
161#endif
162static const char *npgettext_aux(const char *domain,
163 const char *msg_ctxt_id, const char *msgid,
164 const char *msgid_plural,
165 unsigned long int n, int category)
166{
167 const char *translation =
168 dcngettext(domain, msg_ctxt_id, msgid_plural, n, category);
169 if (translation == msg_ctxt_id || translation == msgid_plural)
170 return (n == 1 ? msgid : msgid_plural);
171 else
172 return translation;
173}
174
175/* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID
176 can be arbitrary expressions. But for string literals these macros are
177 less efficient than those above. */
178
179#include <string.h>
180
181#define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS \
182 (((__GNUC__ >= 3 || __GNUG__ >= 2) && !__STRICT_ANSI__) \
183 /* || __STDC_VERSION__ >= 199901L */ )
184
185#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
186#include <stdlib.h>
187#endif
188
189#define pgettext_expr(Msgctxt, Msgid) \
190 dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES)
191#define dpgettext_expr(Domainname, Msgctxt, Msgid) \
192 dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES)
193
194#ifdef __GNUC__
195__inline
196#else
197#ifdef __cplusplus
198inline
199#endif
200#endif
201static const char *dcpgettext_expr(const char *domain,
202 const char *msgctxt, const char *msgid,
203 int category)
204{
205 size_t msgctxt_len = strlen(msgctxt) + 1;
206 size_t msgid_len = strlen(msgid) + 1;
207 const char *translation;
208
209#if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
210 char msg_ctxt_id[msgctxt_len + msgid_len];
211#else
212 char buf[1024];
213 char *msg_ctxt_id =
214 (msgctxt_len + msgid_len <= sizeof(buf)
215 ? buf : (char *) malloc(msgctxt_len + msgid_len));
216 if (msg_ctxt_id != NULL)
217#endif
218 {
219 memcpy(msg_ctxt_id, msgctxt, msgctxt_len - 1);
220 msg_ctxt_id[msgctxt_len - 1] = '\004';
221 memcpy(msg_ctxt_id + msgctxt_len, msgid, msgid_len);
222 translation = dcgettext(domain, msg_ctxt_id, category);
223#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
224 if (msg_ctxt_id != buf)
225 free(msg_ctxt_id);
226#endif
227 if (translation != msg_ctxt_id)
228 return translation;
229 }
230 return msgid;
231}
232
233#define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \
234 dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
235#define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
236 dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
237
238#ifdef __GNUC__
239__inline
240#else
241#ifdef __cplusplus
242inline
243#endif
244#endif
245static const char *dcnpgettext_expr(const char *domain,
246 const char *msgctxt, const char *msgid,
247 const char *msgid_plural,
248 unsigned long int n, int category)
249{
250 size_t msgctxt_len = strlen(msgctxt) + 1;
251 size_t msgid_len = strlen(msgid) + 1;
252 const char *translation;
253
254#if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
255 char msg_ctxt_id[msgctxt_len + msgid_len];
256#else
257 char buf[1024];
258 char *msg_ctxt_id =
259 (msgctxt_len + msgid_len <= sizeof(buf)
260 ? buf : (char *) malloc(msgctxt_len + msgid_len));
261 if (msg_ctxt_id != NULL)
262#endif
263 {
264 memcpy(msg_ctxt_id, msgctxt, msgctxt_len - 1);
265 msg_ctxt_id[msgctxt_len - 1] = '\004';
266 memcpy(msg_ctxt_id + msgctxt_len, msgid, msgid_len);
267 translation =
268 dcngettext(domain, msg_ctxt_id, msgid_plural, n,
269 category);
270#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
271 if (msg_ctxt_id != buf)
272 free(msg_ctxt_id);
273#endif
274 if (!
275 (translation == msg_ctxt_id
276 || translation == msgid_plural))
277 return translation;
278 }
279 return (n == 1 ? msgid : msgid_plural);
280}
281
282#endif /* _LIBGETTEXT_H */
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