1: /* Convenience header for conditional use of GNU <libintl.h>.
2: Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009 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 3, 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: # 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: /* A pseudo function call that serves as a marker for the automated
96: extraction of messages, but does not call gettext(). The run-time
97: translation is done at a different place in the code.
98: The argument, String, should be a literal string. Concatenated strings
99: and other string expressions won't work.
100: The macro's expansion is not parenthesized, so that it is suitable as
101: initializer for static 'char[]' or 'const char[]' variables. */
102: #define gettext_noop(String) String
103:
104: /* The separator between msgctxt and msgid in a .mo file. */
105: #define GETTEXT_CONTEXT_GLUE "\004"
106:
107: /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
108: MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be
109: short and rarely need to change.
110: The letter 'p' stands for 'particular' or 'special'. */
111: #ifdef DEFAULT_TEXT_DOMAIN
112: # define pgettext(Msgctxt, Msgid) \
113: pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
114: #else
115: # define pgettext(Msgctxt, Msgid) \
116: pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
117: #endif
118: #define dpgettext(Domainname, Msgctxt, Msgid) \
119: pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
120: #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
121: pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
122: #ifdef DEFAULT_TEXT_DOMAIN
123: # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
124: npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
125: #else
126: # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
127: npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
128: #endif
129: #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
130: npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
131: #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
132: npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
133:
134: #ifdef __GNUC__
135: __inline
136: #else
137: #ifdef __cplusplus
138: inline
139: #endif
140: #endif
141: static const char *
142: pgettext_aux (const char *domain,
143: const char *msg_ctxt_id, const char *msgid,
144: int category)
145: {
146: const char *translation = dcgettext (domain, msg_ctxt_id, category);
147: if (translation == msg_ctxt_id)
148: return msgid;
149: else
150: return translation;
151: }
152:
153: #ifdef __GNUC__
154: __inline
155: #else
156: #ifdef __cplusplus
157: inline
158: #endif
159: #endif
160: static const char *
161: npgettext_aux (const char *domain,
162: const char *msg_ctxt_id, const char *msgid,
163: const char *msgid_plural, unsigned long int n,
164: int category)
165: {
166: const char *translation =
167: dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
168: if (translation == msg_ctxt_id || translation == msgid_plural)
169: return (n == 1 ? msgid : msgid_plural);
170: else
171: return translation;
172: }
173:
174: /* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID
175: can be arbitrary expressions. But for string literals these macros are
176: less efficient than those above. */
177:
178: #include <string.h>
179:
180: #define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS \
181: (((__GNUC__ >= 3 || __GNUG__ >= 2) && !__STRICT_ANSI__) \
182: /* || __STDC_VERSION__ >= 199901L */ )
183:
184: #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
185: #include <stdlib.h>
186: #endif
187:
188: #define pgettext_expr(Msgctxt, Msgid) \
189: dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES)
190: #define dpgettext_expr(Domainname, Msgctxt, Msgid) \
191: dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES)
192:
193: #ifdef __GNUC__
194: __inline
195: #else
196: #ifdef __cplusplus
197: inline
198: #endif
199: #endif
200: static const char *
201: 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: #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
209: char msg_ctxt_id[msgctxt_len + msgid_len];
210: #else
211: char buf[1024];
212: char *msg_ctxt_id =
213: (msgctxt_len + msgid_len <= sizeof (buf)
214: ? buf
215: : (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
242: inline
243: #endif
244: #endif
245: static const char *
246: dcnpgettext_expr (const char *domain,
247: const char *msgctxt, const char *msgid,
248: const char *msgid_plural, unsigned long int n,
249: int category)
250: {
251: size_t msgctxt_len = strlen (msgctxt) + 1;
252: size_t msgid_len = strlen (msgid) + 1;
253: const char *translation;
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
261: : (char *) malloc (msgctxt_len + msgid_len));
262: if (msg_ctxt_id != NULL)
263: #endif
264: {
265: memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
266: msg_ctxt_id[msgctxt_len - 1] = '\004';
267: memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
268: translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
269: #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
270: if (msg_ctxt_id != buf)
271: free (msg_ctxt_id);
272: #endif
273: if (!(translation == msg_ctxt_id || translation == msgid_plural))
274: return translation;
275: }
276: return (n == 1 ? msgid : msgid_plural);
277: }
278:
279: #endif /* _LIBGETTEXT_H */
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