source: vendor/tar/1.16.1/lib/gettext.h@ 3342

Last change on this file since 3342 was 3342, checked in by bird, 18 years ago

tar 1.16.1
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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
5 it under the terms of the GNU General Public License as published by
6 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
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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) || _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) ((void) (Domainname), gettext (Msgid))
68# define dcgettext(Domainname, Msgid, Category) \
69 ((void) (Category), dgettext (Domainname, Msgid))
70# define ngettext(Msgid1, Msgid2, N) \
71 ((N) == 1 \
72 ? ((void) (Msgid2), (const char *) (Msgid1)) \
73 : ((void) (Msgid1), (const char *) (Msgid2)))
74# define dngettext(Domainname, Msgid1, Msgid2, N) \
75 ((void) (Domainname), ngettext (Msgid1, Msgid2, N))
76# define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
77 ((void) (Category), dngettext(Domainname, Msgid1, Msgid2, N))
78# define textdomain(Domainname) ((const char *) (Domainname))
79# define bindtextdomain(Domainname, Dirname) \
80 ((void) (Domainname), (const char *) (Dirname))
81# define bind_textdomain_codeset(Domainname, Codeset) \
82 ((void) (Domainname), (const char *) (Codeset))
83
84#endif
85
86/* A pseudo function call that serves as a marker for the automated
87 extraction of messages, but does not call gettext(). The run-time
88 translation is done at a different place in the code.
89 The argument, String, should be a literal string. Concatenated strings
90 and other string expressions won't work.
91 The macro's expansion is not parenthesized, so that it is suitable as
92 initializer for static 'char[]' or 'const char[]' variables. */
93#define gettext_noop(String) String
94
95/* The separator between msgctxt and msgid in a .mo file. */
96#define GETTEXT_CONTEXT_GLUE "\004"
97
98/* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
99 MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be
100 short and rarely need to change.
101 The letter 'p' stands for 'particular' or 'special'. */
102#ifdef DEFAULT_TEXT_DOMAIN
103# define pgettext(Msgctxt, Msgid) \
104 pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
105#else
106# define pgettext(Msgctxt, Msgid) \
107 pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
108#endif
109#define dpgettext(Domainname, Msgctxt, Msgid) \
110 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
111#define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
112 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
113#ifdef DEFAULT_TEXT_DOMAIN
114# define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
115 npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
116#else
117# define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
118 npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
119#endif
120#define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
121 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
122#define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
123 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
124
125#ifdef __GNUC__
126__inline
127#else
128#ifdef __cplusplus
129inline
130#endif
131#endif
132static const char *
133pgettext_aux (const char *domain,
134 const char *msg_ctxt_id, const char *msgid,
135 int category)
136{
137 const char *translation = dcgettext (domain, msg_ctxt_id, category);
138 if (translation == msg_ctxt_id)
139 return msgid;
140 else
141 return translation;
142}
143
144#ifdef __GNUC__
145__inline
146#else
147#ifdef __cplusplus
148inline
149#endif
150#endif
151static const char *
152npgettext_aux (const char *domain,
153 const char *msg_ctxt_id, const char *msgid,
154 const char *msgid_plural, unsigned long int n,
155 int category)
156{
157 const char *translation =
158 dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
159 if (translation == msg_ctxt_id || translation == msgid_plural)
160 return (n == 1 ? msgid : msgid_plural);
161 else
162 return translation;
163}
164
165/* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID
166 can be arbitrary expressions. But for string literals these macros are
167 less efficient than those above. */
168
169#include <string.h>
170
171#define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS \
172 (((__GNUC__ >= 3 || __GNUG__ >= 2) && !__STRICT_ANSI__) \
173 /* || __STDC_VERSION__ >= 199901L */ )
174
175#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
176#include <stdlib.h>
177#endif
178
179#define pgettext_expr(Msgctxt, Msgid) \
180 dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES)
181#define dpgettext_expr(Domainname, Msgctxt, Msgid) \
182 dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES)
183
184#ifdef __GNUC__
185__inline
186#else
187#ifdef __cplusplus
188inline
189#endif
190#endif
191static const char *
192dcpgettext_expr (const char *domain,
193 const char *msgctxt, const char *msgid,
194 int category)
195{
196 size_t msgctxt_len = strlen (msgctxt) + 1;
197 size_t msgid_len = strlen (msgid) + 1;
198 const char *translation;
199#if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
200 char msg_ctxt_id[msgctxt_len + msgid_len];
201#else
202 char buf[1024];
203 char *msg_ctxt_id =
204 (msgctxt_len + msgid_len <= sizeof (buf)
205 ? buf
206 : (char *) malloc (msgctxt_len + msgid_len));
207 if (msg_ctxt_id != NULL)
208#endif
209 {
210 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
211 msg_ctxt_id[msgctxt_len - 1] = '\004';
212 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
213 translation = dcgettext (domain, msg_ctxt_id, category);
214#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
215 if (msg_ctxt_id != buf)
216 free (msg_ctxt_id);
217#endif
218 if (translation != msg_ctxt_id)
219 return translation;
220 }
221 return msgid;
222}
223
224#define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \
225 dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
226#define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
227 dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
228
229#ifdef __GNUC__
230__inline
231#else
232#ifdef __cplusplus
233inline
234#endif
235#endif
236static const char *
237dcnpgettext_expr (const char *domain,
238 const char *msgctxt, const char *msgid,
239 const char *msgid_plural, unsigned long int n,
240 int category)
241{
242 size_t msgctxt_len = strlen (msgctxt) + 1;
243 size_t msgid_len = strlen (msgid) + 1;
244 const char *translation;
245#if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
246 char msg_ctxt_id[msgctxt_len + msgid_len];
247#else
248 char buf[1024];
249 char *msg_ctxt_id =
250 (msgctxt_len + msgid_len <= sizeof (buf)
251 ? buf
252 : (char *) malloc (msgctxt_len + msgid_len));
253 if (msg_ctxt_id != NULL)
254#endif
255 {
256 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
257 msg_ctxt_id[msgctxt_len - 1] = '\004';
258 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
259 translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
260#if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
261 if (msg_ctxt_id != buf)
262 free (msg_ctxt_id);
263#endif
264 if (!(translation == msg_ctxt_id || translation == msgid_plural))
265 return translation;
266 }
267 return (n == 1 ? msgid : msgid_plural);
268}
269
270#endif /* _LIBGETTEXT_H */
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