1 /* Convenience header for conditional use of GNU <libintl.h>. 2 Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2015 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 <http://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 #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 && !defined __UCLIBC__) || _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 /* Prefer gnulib's setlocale override over libintl's setlocale override. */ 96 #ifdef GNULIB_defined_setlocale 97 # undef setlocale 98 # define setlocale rpl_setlocale 99 #endif 100 101 /* A pseudo function call that serves as a marker for the automated 102 extraction of messages, but does not call gettext(). The run-time 103 translation is done at a different place in the code. 104 The argument, String, should be a literal string. Concatenated strings 105 and other string expressions won't work. 106 The macro's expansion is not parenthesized, so that it is suitable as 107 initializer for static 'char[]' or 'const char[]' variables. */ 108 #define gettext_noop(String) String 109 110 /* The separator between msgctxt and msgid in a .mo file. */ 111 #define GETTEXT_CONTEXT_GLUE "\004" 112 113 /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a 114 MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be 115 short and rarely need to change. 116 The letter 'p' stands for 'particular' or 'special'. */ 117 #ifdef DEFAULT_TEXT_DOMAIN 118 # define pgettext(Msgctxt, Msgid) \ 119 pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) 120 #else 121 # define pgettext(Msgctxt, Msgid) \ 122 pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) 123 #endif 124 #define dpgettext(Domainname, Msgctxt, Msgid) \ 125 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) 126 #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \ 127 pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category) 128 #ifdef DEFAULT_TEXT_DOMAIN 129 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \ 130 npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) 131 #else 132 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \ 133 npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) 134 #endif 135 #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \ 136 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) 137 #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \ 138 npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category) 139 140 #ifdef __GNUC__ 141 __inline 142 #else 143 #ifdef __cplusplus 144 inline 145 #endif 146 #endif 147 static const char * 148 pgettext_aux (const char *domain, 149 const char *msg_ctxt_id, const char *msgid, 150 int category) 151 { 152 const char *translation = dcgettext (domain, msg_ctxt_id, category); 153 if (translation == msg_ctxt_id) 154 return msgid; 155 else 156 return translation; 157 } 158 159 #ifdef __GNUC__ 160 __inline 161 #else 162 #ifdef __cplusplus 163 inline 164 #endif 165 #endif 166 static const char * 167 npgettext_aux (const char *domain, 168 const char *msg_ctxt_id, const char *msgid, 169 const char *msgid_plural, unsigned long int n, 170 int category) 171 { 172 const char *translation = 173 dcngettext (domain, msg_ctxt_id, msgid_plural, n, category); 174 if (translation == msg_ctxt_id || translation == msgid_plural) 175 return (n == 1 ? msgid : msgid_plural); 176 else 177 return translation; 178 } 179 180 /* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID 181 can be arbitrary expressions. But for string literals these macros are 182 less efficient than those above. */ 183 184 #include <string.h> 185 186 #if (((__GNUC__ >= 3 || __GNUG__ >= 2) && !defined __STRICT_ANSI__) \ 187 /* || __STDC_VERSION__ >= 199901L */ ) 188 # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 1 189 #else 190 # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 0 191 #endif 192 193 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 194 #include <stdlib.h> 195 #endif 196 197 #define pgettext_expr(Msgctxt, Msgid) \ 198 dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES) 199 #define dpgettext_expr(Domainname, Msgctxt, Msgid) \ 200 dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES) 201 202 #ifdef __GNUC__ 203 __inline 204 #else 205 #ifdef __cplusplus 206 inline 207 #endif 208 #endif 209 static const char * 210 dcpgettext_expr (const char *domain, 211 const char *msgctxt, const char *msgid, 212 int category) 213 { 214 size_t msgctxt_len = strlen (msgctxt) + 1; 215 size_t msgid_len = strlen (msgid) + 1; 216 const char *translation; 217 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 218 char msg_ctxt_id[msgctxt_len + msgid_len]; 219 #else 220 char buf[1024]; 221 char *msg_ctxt_id = 222 (msgctxt_len + msgid_len <= sizeof (buf) 223 ? buf 224 : (char *) malloc (msgctxt_len + msgid_len)); 225 if (msg_ctxt_id != NULL) 226 #endif 227 { 228 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1); 229 msg_ctxt_id[msgctxt_len - 1] = '\004'; 230 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len); 231 translation = dcgettext (domain, msg_ctxt_id, category); 232 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 233 if (msg_ctxt_id != buf) 234 free (msg_ctxt_id); 235 #endif 236 if (translation != msg_ctxt_id) 237 return translation; 238 } 239 return msgid; 240 } 241 242 #define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \ 243 dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES) 244 #define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \ 245 dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES) 246 247 #ifdef __GNUC__ 248 __inline 249 #else 250 #ifdef __cplusplus 251 inline 252 #endif 253 #endif 254 static const char * 255 dcnpgettext_expr (const char *domain, 256 const char *msgctxt, const char *msgid, 257 const char *msgid_plural, unsigned long int n, 258 int category) 259 { 260 size_t msgctxt_len = strlen (msgctxt) + 1; 261 size_t msgid_len = strlen (msgid) + 1; 262 const char *translation; 263 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 264 char msg_ctxt_id[msgctxt_len + msgid_len]; 265 #else 266 char buf[1024]; 267 char *msg_ctxt_id = 268 (msgctxt_len + msgid_len <= sizeof (buf) 269 ? buf 270 : (char *) malloc (msgctxt_len + msgid_len)); 271 if (msg_ctxt_id != NULL) 272 #endif 273 { 274 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1); 275 msg_ctxt_id[msgctxt_len - 1] = '\004'; 276 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len); 277 translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category); 278 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 279 if (msg_ctxt_id != buf) 280 free (msg_ctxt_id); 281 #endif 282 if (!(translation == msg_ctxt_id || translation == msgid_plural)) 283 return translation; 284 } 285 return (n == 1 ? msgid : msgid_plural); 286 } 287 288 #endif /* _LIBGETTEXT_H */ 289