1 /* Convenience header for conditional use of GNU <libintl.h>. 2 Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2018 Free Software 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 Lesser General Public License as published by 7 the Free Software Foundation; either version 2.1, 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 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser 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) 155 return msgid; 156 else 157 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) 176 return (n == 1 ? msgid : msgid_plural); 177 else 178 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) 241 return translation; 242 } 243 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); 284 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 285 if (msg_ctxt_id != buf) 286 free (msg_ctxt_id); 287 #endif 288 if (found_translation) 289 return translation; 290 } 291 return (n == 1 ? msgid : msgid_plural); 292 } 293 294 #endif /* _LIBGETTEXT_H */ 295