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gettext.h
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/* Convenience header for conditional use of GNU <libintl.h>. Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2016 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef _LIBGETTEXT_H #define _LIBGETTEXT_H 1 /* NLS can be disabled through the configure --disable-nls option. */ #if ENABLE_NLS /* Get declarations of GNU message catalog functions. */ # include <libintl.h> /* You can set the DEFAULT_TEXT_DOMAIN macro to specify the domain used by the gettext() and ngettext() macros. This is an alternative to calling textdomain(), and is useful for libraries. */ # ifdef DEFAULT_TEXT_DOMAIN # undef gettext # define gettext(Msgid) \ dgettext (DEFAULT_TEXT_DOMAIN, Msgid) # undef ngettext # define ngettext(Msgid1, Msgid2, N) \ dngettext (DEFAULT_TEXT_DOMAIN, Msgid1, Msgid2, N) # endif #else /* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which chokes if dcgettext is defined as a macro. So include it now, to make later inclusions of <locale.h> a NOP. We don't include <libintl.h> as well because people using "gettext.h" will not include <libintl.h>, and also including <libintl.h> would fail on SunOS 4, whereas <locale.h> is OK. */ #if defined(__sun) # include <locale.h> #endif /* Many header files from the libstdc++ coming with g++ 3.3 or newer include <libintl.h>, which chokes if dcgettext is defined as a macro. So include it now, to make later inclusions of <libintl.h> a NOP. */ #if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3) # include <cstdlib> # if (__GLIBC__ >= 2 && !defined __UCLIBC__) || _GLIBCXX_HAVE_LIBINTL_H # include <libintl.h> # endif #endif /* Disabled NLS. The casts to 'const char *' serve the purpose of producing warnings for invalid uses of the value returned from these functions. On pre-ANSI systems without 'const', the config.h file is supposed to contain "#define const". */ # undef gettext # define gettext(Msgid) ((const char *) (Msgid)) # undef dgettext # define dgettext(Domainname, Msgid) ((void) (Domainname), gettext (Msgid)) # undef dcgettext # define dcgettext(Domainname, Msgid, Category) \ ((void) (Category), dgettext (Domainname, Msgid)) # undef ngettext # define ngettext(Msgid1, Msgid2, N) \ ((N) == 1 \ ? ((void) (Msgid2), (const char *) (Msgid1)) \ : ((void) (Msgid1), (const char *) (Msgid2))) # undef dngettext # define dngettext(Domainname, Msgid1, Msgid2, N) \ ((void) (Domainname), ngettext (Msgid1, Msgid2, N)) # undef dcngettext # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \ ((void) (Category), dngettext (Domainname, Msgid1, Msgid2, N)) # undef textdomain # define textdomain(Domainname) ((const char *) (Domainname)) # undef bindtextdomain # define bindtextdomain(Domainname, Dirname) \ ((void) (Domainname), (const char *) (Dirname)) # undef bind_textdomain_codeset # define bind_textdomain_codeset(Domainname, Codeset) \ ((void) (Domainname), (const char *) (Codeset)) #endif /* Prefer gnulib's setlocale override over libintl's setlocale override. */ #ifdef GNULIB_defined_setlocale # undef setlocale # define setlocale rpl_setlocale #endif /* A pseudo function call that serves as a marker for the automated extraction of messages, but does not call gettext(). The run-time translation is done at a different place in the code. The argument, String, should be a literal string. Concatenated strings and other string expressions won't work. The macro's expansion is not parenthesized, so that it is suitable as initializer for static 'char[]' or 'const char[]' variables. */ #define gettext_noop(String) String /* The separator between msgctxt and msgid in a .mo file. */ #define GETTEXT_CONTEXT_GLUE "\004" /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be short and rarely need to change. The letter 'p' stands for 'particular' or 'special'. */ #ifdef DEFAULT_TEXT_DOMAIN # define pgettext(Msgctxt, Msgid) \ pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) #else # define pgettext(Msgctxt, Msgid) \ pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) #endif #define dpgettext(Domainname, Msgctxt, Msgid) \ pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES) #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \ pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category) #ifdef DEFAULT_TEXT_DOMAIN # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \ npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) #else # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \ npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) #endif #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \ npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES) #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \ npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category) #ifdef __GNUC__ __inline #else #ifdef __cplusplus inline #endif #endif static const char * pgettext_aux (const char *domain, const char *msg_ctxt_id, const char *msgid, int category) { const char *translation = dcgettext (domain, msg_ctxt_id, category); if (translation == msg_ctxt_id) return msgid; else return translation; } #ifdef __GNUC__ __inline #else #ifdef __cplusplus inline #endif #endif static const char * npgettext_aux (const char *domain, const char *msg_ctxt_id, const char *msgid, const char *msgid_plural, unsigned long int n, int category) { const char *translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category); if (translation == msg_ctxt_id || translation == msgid_plural) return (n == 1 ? msgid : msgid_plural); else return translation; } /* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID can be arbitrary expressions. But for string literals these macros are less efficient than those above. */ #include <string.h> #if (((__GNUC__ >= 3 || __GNUG__ >= 2) && !defined __STRICT_ANSI__) \ /* || __STDC_VERSION__ >= 199901L */ ) # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 1 #else # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 0 #endif #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS #include <stdlib.h> #endif #define pgettext_expr(Msgctxt, Msgid) \ dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES) #define dpgettext_expr(Domainname, Msgctxt, Msgid) \ dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES) #ifdef __GNUC__ __inline #else #ifdef __cplusplus inline #endif #endif static const char * dcpgettext_expr (const char *domain, const char *msgctxt, const char *msgid, int category) { size_t msgctxt_len = strlen (msgctxt) + 1; size_t msgid_len = strlen (msgid) + 1; const char *translation; #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS char msg_ctxt_id[msgctxt_len + msgid_len]; #else char buf[1024]; char *msg_ctxt_id = (msgctxt_len + msgid_len <= sizeof (buf) ? buf : (char *) malloc (msgctxt_len + msgid_len)); if (msg_ctxt_id != NULL) #endif { int found_translation; memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1); msg_ctxt_id[msgctxt_len - 1] = '\004'; memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len); translation = dcgettext (domain, msg_ctxt_id, category); found_translation = (translation != msg_ctxt_id); #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS if (msg_ctxt_id != buf) free (msg_ctxt_id); #endif if (found_translation) return translation; } return msgid; } #define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \ dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES) #define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \ dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES) #ifdef __GNUC__ __inline #else #ifdef __cplusplus inline #endif #endif static const char * dcnpgettext_expr (const char *domain, const char *msgctxt, const char *msgid, const char *msgid_plural, unsigned long int n, int category) { size_t msgctxt_len = strlen (msgctxt) + 1; size_t msgid_len = strlen (msgid) + 1; const char *translation; #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS char msg_ctxt_id[msgctxt_len + msgid_len]; #else char buf[1024]; char *msg_ctxt_id = (msgctxt_len + msgid_len <= sizeof (buf) ? buf : (char *) malloc (msgctxt_len + msgid_len)); if (msg_ctxt_id != NULL) #endif { int found_translation; memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1); msg_ctxt_id[msgctxt_len - 1] = '\004'; memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len); translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category); found_translation = !(translation == msg_ctxt_id || translation == msgid_plural); #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS if (msg_ctxt_id != buf) free (msg_ctxt_id); #endif if (found_translation) return translation; } return (n == 1 ? msgid : msgid_plural); } #endif /* _LIBGETTEXT_H */