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annotate intl/libgnuintl.h @ 158:494b0b89df80 default tip
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 84e7813d76e9 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Message catalogs for internationalization. |
| 2 Copyright (C) 1995-1997, 2000-2003 Free Software Foundation, Inc. | |
| 3 | |
| 4 This program is free software; you can redistribute it and/or modify it | |
| 5 under the terms of the GNU Library General Public License as published | |
| 6 by 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 GNU | |
| 12 Library General Public License for more details. | |
| 13 | |
| 14 You should have received a copy of the GNU Library General Public | |
| 15 License along with this program; if not, write to the Free Software | |
| 16 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, | |
| 17 USA. */ | |
| 18 | |
| 19 #ifndef _LIBINTL_H | |
| 20 #define _LIBINTL_H 1 | |
| 21 | |
| 22 #include <locale.h> | |
| 23 | |
| 24 /* The LC_MESSAGES locale category is the category used by the functions | |
| 25 gettext() and dgettext(). It is specified in POSIX, but not in ANSI C. | |
| 26 On systems that don't define it, use an arbitrary value instead. | |
| 27 On Solaris, <locale.h> defines __LOCALE_H (or _LOCALE_H in Solaris 2.5) | |
| 28 then includes <libintl.h> (i.e. this file!) and then only defines | |
| 29 LC_MESSAGES. To avoid a redefinition warning, don't define LC_MESSAGES | |
| 30 in this case. */ | |
| 31 #if !defined LC_MESSAGES && !(defined __LOCALE_H || (defined _LOCALE_H && defined __sun)) | |
| 32 # define LC_MESSAGES 1729 | |
| 33 #endif | |
| 34 | |
| 35 /* We define an additional symbol to signal that we use the GNU | |
| 36 implementation of gettext. */ | |
| 37 #define __USE_GNU_GETTEXT 1 | |
| 38 | |
| 39 /* Provide information about the supported file formats. Returns the | |
| 40 maximum minor revision number supported for a given major revision. */ | |
| 41 #define __GNU_GETTEXT_SUPPORTED_REVISION(major) \ | |
| 42 ((major) == 0 ? 1 : -1) | |
| 43 | |
| 44 /* Resolve a platform specific conflict on DJGPP. GNU gettext takes | |
| 45 precedence over _conio_gettext. */ | |
| 46 #ifdef __DJGPP__ | |
| 47 # undef gettext | |
| 48 #endif | |
| 49 | |
| 50 /* Use _INTL_PARAMS, not PARAMS, in order to avoid clashes with identifiers | |
| 51 used by programs. Similarly, test __PROTOTYPES, not PROTOTYPES. */ | |
| 52 #ifndef _INTL_PARAMS | |
| 53 # if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES | |
| 54 # define _INTL_PARAMS(args) args | |
| 55 # else | |
| 56 # define _INTL_PARAMS(args) () | |
| 57 # endif | |
| 58 #endif | |
| 59 | |
| 60 #ifdef __cplusplus | |
| 61 extern "C" { | |
| 62 #endif | |
| 63 | |
| 64 | |
| 65 /* We redirect the functions to those prefixed with "libintl_". This is | |
| 66 necessary, because some systems define gettext/textdomain/... in the C | |
| 67 library (namely, Solaris 2.4 and newer, and GNU libc 2.0 and newer). | |
| 68 If we used the unprefixed names, there would be cases where the | |
| 69 definition in the C library would override the one in the libintl.so | |
| 70 shared library. Recall that on ELF systems, the symbols are looked | |
| 71 up in the following order: | |
| 72 1. in the executable, | |
| 73 2. in the shared libraries specified on the link command line, in order, | |
| 74 3. in the dependencies of the shared libraries specified on the link | |
| 75 command line, | |
| 76 4. in the dlopen()ed shared libraries, in the order in which they were | |
| 77 dlopen()ed. | |
| 78 The definition in the C library would override the one in libintl.so if | |
| 79 either | |
| 80 * -lc is given on the link command line and -lintl isn't, or | |
| 81 * -lc is given on the link command line before -lintl, or | |
| 82 * libintl.so is a dependency of a dlopen()ed shared library but not | |
| 83 linked to the executable at link time. | |
| 84 Since Solaris gettext() behaves differently than GNU gettext(), this | |
| 85 would be unacceptable. | |
| 86 | |
| 87 The redirection happens by default through macros in C, so that &gettext | |
| 88 is independent of the compilation unit, but through inline functions in | |
| 89 C++, in order not to interfere with the name mangling of class fields or | |
| 90 class methods called 'gettext'. */ | |
| 91 | |
| 92 /* The user can define _INTL_REDIRECT_INLINE or _INTL_REDIRECT_MACROS. | |
| 93 If he doesn't, we choose the method. A third possible method is | |
| 94 _INTL_REDIRECT_ASM, supported only by GCC. */ | |
| 95 #if !(defined _INTL_REDIRECT_INLINE || defined _INTL_REDIRECT_MACROS) | |
| 96 # if __GNUC__ >= 2 && !defined __APPLE_CC__ && (defined __STDC__ || defined __cplusplus) | |
| 97 # define _INTL_REDIRECT_ASM | |
| 98 # else | |
| 99 # ifdef __cplusplus | |
| 100 # define _INTL_REDIRECT_INLINE | |
| 101 # else | |
| 102 # define _INTL_REDIRECT_MACROS | |
| 103 # endif | |
| 104 # endif | |
| 105 #endif | |
| 106 /* Auxiliary macros. */ | |
| 107 #ifdef _INTL_REDIRECT_ASM | |
| 108 # define _INTL_ASM(cname) __asm__ (_INTL_ASMNAME (__USER_LABEL_PREFIX__, #cname)) | |
| 109 # define _INTL_ASMNAME(prefix,cnamestring) _INTL_STRINGIFY (prefix) cnamestring | |
| 110 # define _INTL_STRINGIFY(prefix) #prefix | |
| 111 #else | |
| 112 # define _INTL_ASM(cname) | |
| 113 #endif | |
| 114 | |
|
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115 /* _INTL_MAY_RETURN_STRING_ARG(n) declares that the given function may return |
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116 its n-th argument literally. This enables GCC to warn for example about |
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117 printf (gettext ("foo %y")). */ |
| 131 | 118 #if defined __GNUC__ && __GNUC__ >= 3 && !(defined __APPLE_CC__ && __APPLE_CC__ > 1 && !(defined __clang__ && __clang__ && __clang_major__ >= 3) && defined __cplusplus) |
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119 # define _INTL_MAY_RETURN_STRING_ARG(n) __attribute__ ((__format_arg__ (n))) |
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120 #else |
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121 # define _INTL_MAY_RETURN_STRING_ARG(n) |
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122 #endif |
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123 |
| 0 | 124 /* Look up MSGID in the current default message catalog for the current |
| 125 LC_MESSAGES locale. If not found, returns MSGID itself (the default | |
| 126 text). */ | |
| 127 #ifdef _INTL_REDIRECT_INLINE | |
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128 extern char *libintl_gettext (const char *__msgid) |
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129 _INTL_MAY_RETURN_STRING_ARG (1); |
| 131 | 130 static inline |
| 131 _INTL_MAY_RETURN_STRING_ARG (1) | |
| 132 char *gettext (const char *__msgid) | |
| 0 | 133 { |
| 134 return libintl_gettext (__msgid); | |
| 135 } | |
| 136 #else | |
| 137 #ifdef _INTL_REDIRECT_MACROS | |
| 138 # define gettext libintl_gettext | |
| 139 #endif | |
| 140 extern char *gettext _INTL_PARAMS ((const char *__msgid)) | |
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141 _INTL_ASM (libintl_gettext) |
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142 _INTL_MAY_RETURN_STRING_ARG (1); |
| 0 | 143 #endif |
| 144 | |
| 145 /* Look up MSGID in the DOMAINNAME message catalog for the current | |
| 146 LC_MESSAGES locale. */ | |
| 147 #ifdef _INTL_REDIRECT_INLINE | |
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148 extern char *libintl_dgettext (const char *__domainname, const char *__msgid) |
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149 _INTL_MAY_RETURN_STRING_ARG (2); |
| 131 | 150 static inline |
| 151 _INTL_MAY_RETURN_STRING_ARG (2) | |
| 152 char *dgettext (const char *__domainname, const char *__msgid) | |
| 0 | 153 { |
| 154 return libintl_dgettext (__domainname, __msgid); | |
| 155 } | |
| 156 #else | |
| 157 #ifdef _INTL_REDIRECT_MACROS | |
| 158 # define dgettext libintl_dgettext | |
| 159 #endif | |
| 160 extern char *dgettext _INTL_PARAMS ((const char *__domainname, | |
| 161 const char *__msgid)) | |
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162 _INTL_ASM (libintl_dgettext) |
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163 _INTL_MAY_RETURN_STRING_ARG (2); |
| 0 | 164 #endif |
| 165 | |
| 166 /* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY | |
| 167 locale. */ | |
| 168 #ifdef _INTL_REDIRECT_INLINE | |
| 169 extern char *libintl_dcgettext (const char *__domainname, const char *__msgid, | |
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170 int __category) |
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171 _INTL_MAY_RETURN_STRING_ARG (2); |
| 131 | 172 static inline |
| 173 _INTL_MAY_RETURN_STRING_ARG (2) | |
| 174 char *dcgettext (const char *__domainname, const char *__msgid, int __category) | |
| 0 | 175 { |
| 176 return libintl_dcgettext (__domainname, __msgid, __category); | |
| 177 } | |
| 178 #else | |
| 179 #ifdef _INTL_REDIRECT_MACROS | |
| 180 # define dcgettext libintl_dcgettext | |
| 181 #endif | |
| 182 extern char *dcgettext _INTL_PARAMS ((const char *__domainname, | |
| 183 const char *__msgid, | |
| 184 int __category)) | |
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185 _INTL_ASM (libintl_dcgettext) |
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186 _INTL_MAY_RETURN_STRING_ARG (2); |
| 0 | 187 #endif |
| 188 | |
| 189 | |
| 190 /* Similar to `gettext' but select the plural form corresponding to the | |
| 191 number N. */ | |
| 192 #ifdef _INTL_REDIRECT_INLINE | |
| 193 extern char *libintl_ngettext (const char *__msgid1, const char *__msgid2, | |
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194 unsigned long int __n) |
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195 _INTL_MAY_RETURN_STRING_ARG (1) _INTL_MAY_RETURN_STRING_ARG (2); |
| 131 | 196 static inline |
| 197 _INTL_MAY_RETURN_STRING_ARG (1) _INTL_MAY_RETURN_STRING_ARG (2) | |
| 198 char *ngettext (const char *__msgid1, const char *__msgid2, | |
| 199 unsigned long int __n) | |
| 0 | 200 { |
| 201 return libintl_ngettext (__msgid1, __msgid2, __n); | |
| 202 } | |
| 203 #else | |
| 204 #ifdef _INTL_REDIRECT_MACROS | |
| 205 # define ngettext libintl_ngettext | |
| 206 #endif | |
| 207 extern char *ngettext _INTL_PARAMS ((const char *__msgid1, | |
| 208 const char *__msgid2, | |
| 209 unsigned long int __n)) | |
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210 _INTL_ASM (libintl_ngettext) |
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211 _INTL_MAY_RETURN_STRING_ARG (1) _INTL_MAY_RETURN_STRING_ARG (2); |
| 0 | 212 #endif |
| 213 | |
| 214 /* Similar to `dgettext' but select the plural form corresponding to the | |
| 215 number N. */ | |
| 216 #ifdef _INTL_REDIRECT_INLINE | |
| 217 extern char *libintl_dngettext (const char *__domainname, const char *__msgid1, | |
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218 const char *__msgid2, unsigned long int __n) |
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219 _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3); |
| 131 | 220 static inline |
| 221 _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3) | |
| 222 char *dngettext (const char *__domainname, const char *__msgid1, | |
| 223 const char *__msgid2, unsigned long int __n) | |
| 0 | 224 { |
| 225 return libintl_dngettext (__domainname, __msgid1, __msgid2, __n); | |
| 226 } | |
| 227 #else | |
| 228 #ifdef _INTL_REDIRECT_MACROS | |
| 229 # define dngettext libintl_dngettext | |
| 230 #endif | |
| 231 extern char *dngettext _INTL_PARAMS ((const char *__domainname, | |
| 232 const char *__msgid1, | |
| 233 const char *__msgid2, | |
| 234 unsigned long int __n)) | |
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235 _INTL_ASM (libintl_dngettext) |
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236 _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3); |
| 0 | 237 #endif |
| 238 | |
| 239 /* Similar to `dcgettext' but select the plural form corresponding to the | |
| 240 number N. */ | |
| 241 #ifdef _INTL_REDIRECT_INLINE | |
| 242 extern char *libintl_dcngettext (const char *__domainname, | |
| 243 const char *__msgid1, const char *__msgid2, | |
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244 unsigned long int __n, int __category) |
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245 _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3); |
| 131 | 246 static inline |
| 247 _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3) | |
| 248 char *dcngettext (const char *__domainname, | |
| 249 const char *__msgid1, const char *__msgid2, | |
| 250 unsigned long int __n, int __category) | |
| 0 | 251 { |
| 252 return libintl_dcngettext (__domainname, __msgid1, __msgid2, __n, __category); | |
| 253 } | |
| 254 #else | |
| 255 #ifdef _INTL_REDIRECT_MACROS | |
| 256 # define dcngettext libintl_dcngettext | |
| 257 #endif | |
| 258 extern char *dcngettext _INTL_PARAMS ((const char *__domainname, | |
| 259 const char *__msgid1, | |
| 260 const char *__msgid2, | |
| 261 unsigned long int __n, | |
| 262 int __category)) | |
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263 _INTL_ASM (libintl_dcngettext) |
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264 _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3); |
| 0 | 265 #endif |
| 266 | |
| 267 | |
| 268 /* Set the current default message catalog to DOMAINNAME. | |
| 269 If DOMAINNAME is null, return the current default. | |
| 270 If DOMAINNAME is "", reset to the default of "messages". */ | |
| 271 #ifdef _INTL_REDIRECT_INLINE | |
| 272 extern char *libintl_textdomain (const char *__domainname); | |
| 273 static inline char *textdomain (const char *__domainname) | |
| 274 { | |
| 275 return libintl_textdomain (__domainname); | |
| 276 } | |
| 277 #else | |
| 278 #ifdef _INTL_REDIRECT_MACROS | |
| 279 # define textdomain libintl_textdomain | |
| 280 #endif | |
| 281 extern char *textdomain _INTL_PARAMS ((const char *__domainname)) | |
| 282 _INTL_ASM (libintl_textdomain); | |
| 283 #endif | |
| 284 | |
| 285 /* Specify that the DOMAINNAME message catalog will be found | |
| 286 in DIRNAME rather than in the system locale data base. */ | |
| 287 #ifdef _INTL_REDIRECT_INLINE | |
| 288 extern char *libintl_bindtextdomain (const char *__domainname, | |
| 289 const char *__dirname); | |
| 290 static inline char *bindtextdomain (const char *__domainname, | |
| 291 const char *__dirname) | |
| 292 { | |
| 293 return libintl_bindtextdomain (__domainname, __dirname); | |
| 294 } | |
| 295 #else | |
| 296 #ifdef _INTL_REDIRECT_MACROS | |
| 297 # define bindtextdomain libintl_bindtextdomain | |
| 298 #endif | |
| 299 extern char *bindtextdomain _INTL_PARAMS ((const char *__domainname, | |
| 300 const char *__dirname)) | |
| 301 _INTL_ASM (libintl_bindtextdomain); | |
| 302 #endif | |
| 303 | |
| 304 /* Specify the character encoding in which the messages from the | |
| 305 DOMAINNAME message catalog will be returned. */ | |
| 306 #ifdef _INTL_REDIRECT_INLINE | |
| 307 extern char *libintl_bind_textdomain_codeset (const char *__domainname, | |
| 308 const char *__codeset); | |
| 309 static inline char *bind_textdomain_codeset (const char *__domainname, | |
| 310 const char *__codeset) | |
| 311 { | |
| 312 return libintl_bind_textdomain_codeset (__domainname, __codeset); | |
| 313 } | |
| 314 #else | |
| 315 #ifdef _INTL_REDIRECT_MACROS | |
| 316 # define bind_textdomain_codeset libintl_bind_textdomain_codeset | |
| 317 #endif | |
| 318 extern char *bind_textdomain_codeset _INTL_PARAMS ((const char *__domainname, | |
| 319 const char *__codeset)) | |
| 320 _INTL_ASM (libintl_bind_textdomain_codeset); | |
| 321 #endif | |
| 322 | |
| 323 | |
| 324 /* Support for relocatable packages. */ | |
| 325 | |
| 326 /* Sets the original and the current installation prefix of the package. | |
| 327 Relocation simply replaces a pathname starting with the original prefix | |
| 328 by the corresponding pathname with the current prefix instead. Both | |
| 329 prefixes should be directory names without trailing slash (i.e. use "" | |
| 330 instead of "/"). */ | |
| 331 #define libintl_set_relocation_prefix libintl_set_relocation_prefix | |
| 332 extern void | |
| 333 libintl_set_relocation_prefix _INTL_PARAMS ((const char *orig_prefix, | |
| 334 const char *curr_prefix)); | |
| 335 | |
| 336 | |
| 337 #ifdef __cplusplus | |
| 338 } | |
| 339 #endif | |
| 340 | |
| 341 #endif /* libintl.h */ |