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gettext.h

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1 /* Convenience header for conditional use of GNU <libintl.h>. -

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 General Public License as published by -

7 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 -

13 GNU General Public License for more details. -

14 -

15 You should have received a copy of the GNU General Public License along -

16 with this program; if not, see <https://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 or through "#define ENABLE NLS 0" before including this file. */ -

23 #if defined ENABLE_NLS && ENABLE_NLS -

24 -

25 /* Get declarations of GNU message catalog functions. */ -

26 # include <libintl.h> -

27 -

28 /* You can set the DEFAULT_TEXT_DOMAIN macro to specify the domain used by -

29 the gettext() and ngettext() macros. This is an alternative to calling -

30 textdomain(), and is useful for libraries. */ -

31 # ifdef DEFAULT_TEXT_DOMAIN -

32 # undef gettext -

33 # define gettext(Msgid) \ -

34 dgettext (DEFAULT_TEXT_DOMAIN, Msgid) -

35 # undef ngettext -

36 # define ngettext(Msgid1, Msgid2, N) \ -

37 dngettext (DEFAULT_TEXT_DOMAIN, Msgid1, Msgid2, N) -

38 # endif -

39 -

40 #else -

41 -

42 /* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which -

43 chokes if dcgettext is defined as a macro. So include it now, to make -

44 later inclusions of <locale.h> a NOP. We don't include <libintl.h> -

45 as well because people using "gettext.h" will not include <libintl.h>, -

46 and also including <libintl.h> would fail on SunOS 4, whereas <locale.h> -

47 is OK. */ -

48 #if defined(__sun) -

49 # include <locale.h> -

50 #endif -

51 -

52 /* Many header files from the libstdc++ coming with g++ 3.3 or newer include -

53 <libintl.h>, which chokes if dcgettext is defined as a macro. So include -

54 it now, to make later inclusions of <libintl.h> a NOP. */ -

55 #if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3) -

56 # include <cstdlib> -

57 # if (__GLIBC__ >= 2 && !defined __UCLIBC__) || _GLIBCXX_HAVE_LIBINTL_H -

58 # include <libintl.h> -

59 # endif -

60 #endif -

61 -

62 /* Disabled NLS. -

63 The casts to 'const char *' serve the purpose of producing warnings -

64 for invalid uses of the value returned from these functions. -

65 On pre-ANSI systems without 'const', the config.h file is supposed to -

66 contain "#define const". */ -

67 # undef gettext -

68 # define gettext(Msgid) ((const char *) (Msgid)) -

69 # undef dgettext -

70 # define dgettext(Domainname, Msgid) ((void) (Domainname), gettext (Msgid)) -

71 # undef dcgettext -

72 # define dcgettext(Domainname, Msgid, Category) \ -

73 ((void) (Category), dgettext (Domainname, Msgid)) -

74 # undef ngettext -

75 # define ngettext(Msgid1, Msgid2, N) \ -

76 ((N) == 1 \ -

77 ? ((void) (Msgid2), (const char *) (Msgid1)) \ -

78 : ((void) (Msgid1), (const char *) (Msgid2))) -

79 # undef dngettext -

80 # define dngettext(Domainname, Msgid1, Msgid2, N) \ -

81 ((void) (Domainname), ngettext (Msgid1, Msgid2, N)) -

82 # undef dcngettext -

83 # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \ -

84 ((void) (Category), dngettext (Domainname, Msgid1, Msgid2, N)) -

85 # undef textdomain -

86 # define textdomain(Domainname) ((const char *) (Domainname)) -

87 # undef bindtextdomain -

88 # define bindtextdomain(Domainname, Dirname) \ -

89 ((void) (Domainname), (const char *) (Dirname)) -

90 # undef bind_textdomain_codeset -

91 # define bind_textdomain_codeset(Domainname, Codeset) \ -

92 ((void) (Domainname), (const char *) (Codeset)) -

93 -

94 #endif -

95 -

96 /* Prefer gnulib's setlocale override over libintl's setlocale override. */ -

97 #ifdef GNULIB_defined_setlocale -

98 # undef setlocale -

99 # define setlocale rpl_setlocale -

100 #endif -

101 -

102 /* A pseudo function call that serves as a marker for the automated -

103 extraction of messages, but does not call gettext(). The run-time -

104 translation is done at a different place in the code. -

105 The argument, String, should be a literal string. Concatenated strings -

106 and other string expressions won't work. -

107 The macro's expansion is not parenthesized, so that it is suitable as -

108 initializer for static 'char[]' or 'const char[]' variables. */ -

109 #define gettext_noop(String) String -

110 -

111 /* The separator between msgctxt and msgid in a .mo file. */ -

112 #define GETTEXT_CONTEXT_GLUE "\004" -

113 -

114 /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a -

115 MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be -

116 short and rarely need to change. -

117 The letter 'p' stands for 'particular' or 'special'. */ -

118 #ifdef DEFAULT_TEXT_DOMAIN -

119 # define pgettext(Msgctxt, Msgid) \ -

120 pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) -

121 #else -

122 # define pgettext(Msgctxt, Msgid) \ -

123 pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) -

124 #endif -

125 #define dpgettext(Domainname, Msgctxt, Msgid) \ -

126 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) -

127 #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \ -

128 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category) -

129 #ifdef DEFAULT_TEXT_DOMAIN -

130 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \ -

131 npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) -

132 #else -

133 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \ -

134 npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) -

135 #endif -

136 #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \ -

137 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) -

138 #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \ -

139 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category) -

140 -

141 #ifdef __GNUC__ -

142 __inline -

143 #else -

144 #ifdef __cplusplus -

145 inline -

146 #endif -

147 #endif -

148 static const char * -

149 pgettext_aux (const char *domain, -

150 const char *msg_ctxt_id, const char *msgid, -

151 int category) -

152 { -

153 const char *translation = dcgettext (domain, msg_ctxt_id, category); -

154

if (translation == msg_ctxt_id)

translation == msg_ctxt_id	Description
TRUE	never evaluated
FALSE	never evaluated

155

return msgid;

never executed: return msgid;

156 else -

157

return translation;

never executed: return translation;

158 } -

159 -

160 #ifdef __GNUC__ -

161 __inline -

162 #else -

163 #ifdef __cplusplus -

164 inline -

165 #endif -

166 #endif -

167 static const char * -

168 npgettext_aux (const char *domain, -

169 const char *msg_ctxt_id, const char *msgid, -

170 const char *msgid_plural, unsigned long int n, -

171 int category) -

172 { -

173 const char *translation = -

174 dcngettext (domain, msg_ctxt_id, msgid_plural, n, category); -

175

if (translation == msg_ctxt_id || translation == msgid_plural)

translation == msg_ctxt_id	Description
TRUE	never evaluated
FALSE	never evaluated

translation == msgid_plural	Description
TRUE	never evaluated
FALSE	never evaluated

176

return (n == 1 ? msgid : msgid_plural);

never executed: return (n == 1 ? msgid : msgid_plural);

177 else -

178

return translation;

never executed: return translation;

179 } -

180 -

181 /* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID -

182 can be arbitrary expressions. But for string literals these macros are -

183 less efficient than those above. */ -

184 -

185 #include <string.h> -

186 -

187 #if (((__GNUC__ >= 3 || __GNUG__ >= 2) && !defined __STRICT_ANSI__) \ -

188 /* || __STDC_VERSION__ == 199901L -

189 || (__STDC_VERSION__ >= 201112L && !defined __STDC_NO_VLA__) */ ) -

190 # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 1 -

191 #else -

192 # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 0 -

193 #endif -

194 -

195 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS -

196 #include <stdlib.h> -

197 #endif -

198 -

199 #define pgettext_expr(Msgctxt, Msgid) \ -

200 dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES) -

201 #define dpgettext_expr(Domainname, Msgctxt, Msgid) \ -

202 dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES) -

203 -

204 #ifdef __GNUC__ -

205 __inline -

206 #else -

207 #ifdef __cplusplus -

208 inline -

209 #endif -

210 #endif -

211 static const char * -

212 dcpgettext_expr (const char *domain, -

213 const char *msgctxt, const char *msgid, -

214 int category) -

215 { -

216 size_t msgctxt_len = strlen (msgctxt) + 1; -

217 size_t msgid_len = strlen (msgid) + 1; -

218 const char *translation; -

219 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS -

220 char msg_ctxt_id[msgctxt_len + msgid_len]; -

221 #else -

222 char buf[1024]; -

223 char *msg_ctxt_id = -

224 (msgctxt_len + msgid_len <= sizeof (buf) -

225 ? buf -

226 : (char *) malloc (msgctxt_len + msgid_len)); -

227 if (msg_ctxt_id != NULL) -

228 #endif -

229 { -

230 int found_translation; -

231 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1); -

232 msg_ctxt_id[msgctxt_len - 1] = '\004'; -

233 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len); -

234 translation = dcgettext (domain, msg_ctxt_id, category); -

235 found_translation = (translation != msg_ctxt_id); -

236 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS -

237 if (msg_ctxt_id != buf) -

238 free (msg_ctxt_id); -

239 #endif -

240

if (found_translation)

found_translation	Description
TRUE	never evaluated
FALSE	never evaluated

241

return translation;

never executed: return translation;

242 } -

243

return msgid;

never executed: return msgid;

244 } -

245 -

246 #define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \ -

247 dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES) -

248 #define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \ -

249 dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES) -

250 -

251 #ifdef __GNUC__ -

252 __inline -

253 #else -

254 #ifdef __cplusplus -

255 inline -

256 #endif -

257 #endif -

258 static const char * -

259 dcnpgettext_expr (const char *domain, -

260 const char *msgctxt, const char *msgid, -

261 const char *msgid_plural, unsigned long int n, -

262 int category) -

263 { -

264 size_t msgctxt_len = strlen (msgctxt) + 1; -

265 size_t msgid_len = strlen (msgid) + 1; -

266 const char *translation; -

267 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS -

268 char msg_ctxt_id[msgctxt_len + msgid_len]; -

269 #else -

270 char buf[1024]; -

271 char *msg_ctxt_id = -

272 (msgctxt_len + msgid_len <= sizeof (buf) -

273 ? buf -

274 : (char *) malloc (msgctxt_len + msgid_len)); -

275 if (msg_ctxt_id != NULL) -

276 #endif -

277 { -

278 int found_translation; -

279 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1); -

280 msg_ctxt_id[msgctxt_len - 1] = '\004'; -

281 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len); -

282 translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category); -

283

found_translation = !(translation == msg_ctxt_id || translation == msgid_plural);

translation == msg_ctxt_id	Description
TRUE	never evaluated
FALSE	never evaluated

translation == msgid_plural	Description
TRUE	never evaluated
FALSE	never evaluated

284 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS -

285 if (msg_ctxt_id != buf) -

286 free (msg_ctxt_id); -

287 #endif -

288

if (found_translation)

found_translation	Description
TRUE	never evaluated
FALSE	never evaluated

289

return translation;

never executed: return translation;

290 } -

291

return (n == 1 ? msgid : msgid_plural);

never executed: return (n == 1 ? msgid : msgid_plural);

292 } -

293 -

294 #endif /* _LIBGETTEXT_H */ -

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