[3611] | 1 | /* Convenience header for conditional use of GNU <libintl.h>.
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| 2 | Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2022 Free Software
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| 3 | Foundation, Inc.
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| 4 |
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| 5 | This file is free software: you can redistribute it and/or modify
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| 6 | it under the terms of the GNU Lesser General Public License as
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| 7 | published by the Free Software Foundation; either version 2.1 of the
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| 8 | License, or (at your option) any later version.
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| 9 |
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| 10 | This file is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU Lesser General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU Lesser General Public License
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| 16 | along with this program. If not, see <https://www.gnu.org/licenses/>. */
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| 17 |
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| 18 | #ifndef _LIBGETTEXT_H
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| 19 | #define _LIBGETTEXT_H 1
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| 20 |
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| 21 | /* NLS can be disabled through the configure --disable-nls option
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| 22 | or through "#define ENABLE NLS 0" before including this file. */
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| 23 | #if defined ENABLE_NLS && ENABLE_NLS
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| 24 |
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| 25 | /* Get declarations of GNU message catalog functions. */
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| 26 | # include <libintl.h>
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| 27 |
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| 28 | /* You can set the DEFAULT_TEXT_DOMAIN macro to specify the domain used by
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| 29 | the gettext() and ngettext() macros. This is an alternative to calling
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| 30 | textdomain(), and is useful for libraries. */
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| 31 | # ifdef DEFAULT_TEXT_DOMAIN
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| 32 | # undef gettext
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| 33 | # define gettext(Msgid) \
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| 34 | dgettext (DEFAULT_TEXT_DOMAIN, Msgid)
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| 35 | # undef ngettext
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| 36 | # define ngettext(Msgid1, Msgid2, N) \
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| 37 | dngettext (DEFAULT_TEXT_DOMAIN, Msgid1, Msgid2, N)
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| 38 | # endif
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| 39 |
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| 40 | #else
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| 41 |
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| 42 | /* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which
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| 43 | chokes if dcgettext is defined as a macro. So include it now, to make
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| 44 | later inclusions of <locale.h> a NOP. We don't include <libintl.h>
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| 45 | as well because people using "gettext.h" will not include <libintl.h>,
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| 46 | and also including <libintl.h> would fail on SunOS 4, whereas <locale.h>
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| 47 | is OK. */
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| 48 | #if defined(__sun)
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| 49 | # include <locale.h>
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| 50 | #endif
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| 51 |
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| 52 | /* Many header files from the libstdc++ coming with g++ 3.3 or newer include
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| 53 | <libintl.h>, which chokes if dcgettext is defined as a macro. So include
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| 54 | it now, to make later inclusions of <libintl.h> a NOP. */
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| 55 | #if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3)
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| 56 | # include <cstdlib>
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| 57 | # if (__GLIBC__ >= 2 && !defined __UCLIBC__) || _GLIBCXX_HAVE_LIBINTL_H
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| 58 | # include <libintl.h>
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| 59 | # endif
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| 60 | #endif
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| 61 |
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| 62 | /* Disabled NLS.
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| 63 | The casts to 'const char *' serve the purpose of producing warnings
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| 64 | for invalid uses of the value returned from these functions.
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| 65 | On pre-ANSI systems without 'const', the config.h file is supposed to
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| 66 | contain "#define const". */
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| 67 | # undef gettext
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| 68 | # define gettext(Msgid) ((const char *) (Msgid))
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| 69 | # undef dgettext
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| 70 | # define dgettext(Domainname, Msgid) ((void) (Domainname), gettext (Msgid))
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| 71 | # undef dcgettext
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| 72 | # define dcgettext(Domainname, Msgid, Category) \
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| 73 | ((void) (Category), dgettext (Domainname, Msgid))
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| 74 | # undef ngettext
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| 75 | # define ngettext(Msgid1, Msgid2, N) \
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| 76 | ((N) == 1 \
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| 77 | ? ((void) (Msgid2), (const char *) (Msgid1)) \
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| 78 | : ((void) (Msgid1), (const char *) (Msgid2)))
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| 79 | # undef dngettext
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| 80 | # define dngettext(Domainname, Msgid1, Msgid2, N) \
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| 81 | ((void) (Domainname), ngettext (Msgid1, Msgid2, N))
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| 82 | # undef dcngettext
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| 83 | # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
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| 84 | ((void) (Category), dngettext (Domainname, Msgid1, Msgid2, N))
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| 85 | # undef textdomain
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| 86 | # define textdomain(Domainname) ((const char *) (Domainname))
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| 87 | # undef bindtextdomain
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| 88 | # define bindtextdomain(Domainname, Dirname) \
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| 89 | ((void) (Domainname), (const char *) (Dirname))
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| 90 | # undef bind_textdomain_codeset
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| 91 | # define bind_textdomain_codeset(Domainname, Codeset) \
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| 92 | ((void) (Domainname), (const char *) (Codeset))
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| 93 |
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| 94 | #endif
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| 95 |
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| 96 | /* Prefer gnulib's setlocale override over libintl's setlocale override. */
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| 97 | #ifdef GNULIB_defined_setlocale
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| 98 | # undef setlocale
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| 99 | # define setlocale rpl_setlocale
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| 100 | #endif
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| 101 |
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| 102 | /* A pseudo function call that serves as a marker for the automated
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| 103 | extraction of messages, but does not call gettext(). The run-time
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| 104 | translation is done at a different place in the code.
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| 105 | The argument, String, should be a literal string. Concatenated strings
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| 106 | and other string expressions won't work.
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| 107 | The macro's expansion is not parenthesized, so that it is suitable as
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| 108 | initializer for static 'char[]' or 'const char[]' variables. */
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| 109 | #define gettext_noop(String) String
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| 110 |
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| 111 | /* The separator between msgctxt and msgid in a .mo file. */
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| 112 | #define GETTEXT_CONTEXT_GLUE "\004"
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| 113 |
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| 114 | /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
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| 115 | MSGID. MSGCTXT and MSGID must be string literals. MSGCTXT should be
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| 116 | short and rarely need to change.
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| 117 | The letter 'p' stands for 'particular' or 'special'. */
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| 118 | #ifdef DEFAULT_TEXT_DOMAIN
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| 119 | # define pgettext(Msgctxt, Msgid) \
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| 120 | pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
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| 121 | #else
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| 122 | # define pgettext(Msgctxt, Msgid) \
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| 123 | pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
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| 124 | #endif
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| 125 | #define dpgettext(Domainname, Msgctxt, Msgid) \
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| 126 | pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
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| 127 | #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
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| 128 | pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
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| 129 | #ifdef DEFAULT_TEXT_DOMAIN
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| 130 | # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
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| 131 | npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
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| 132 | #else
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| 133 | # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
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| 134 | npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
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| 135 | #endif
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| 136 | #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
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| 137 | npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
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| 138 | #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
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| 139 | npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
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| 140 |
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| 141 | #if defined __GNUC__ || defined __clang__
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| 142 | __inline
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| 143 | #else
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| 144 | #ifdef __cplusplus
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| 145 | inline
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| 146 | #endif
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| 147 | #endif
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| 148 | static const char *
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| 149 | pgettext_aux (const char *domain,
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| 150 | const char *msg_ctxt_id, const char *msgid,
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| 151 | int category)
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| 152 | {
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| 153 | const char *translation = dcgettext (domain, msg_ctxt_id, category);
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| 154 | if (translation == msg_ctxt_id)
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| 155 | return msgid;
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| 156 | else
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| 157 | return translation;
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| 158 | }
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| 159 |
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| 160 | #if defined __GNUC__ || defined __clang__
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| 161 | __inline
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| 162 | #else
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| 163 | #ifdef __cplusplus
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| 164 | inline
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| 165 | #endif
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| 166 | #endif
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| 167 | static const char *
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| 168 | npgettext_aux (const char *domain,
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| 169 | const char *msg_ctxt_id, const char *msgid,
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| 170 | const char *msgid_plural, unsigned long int n,
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| 171 | int category)
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| 172 | {
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| 173 | const char *translation =
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| 174 | dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
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| 175 | if (translation == msg_ctxt_id || translation == msgid_plural)
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| 176 | return (n == 1 ? msgid : msgid_plural);
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| 177 | else
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| 178 | return translation;
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| 179 | }
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| 180 |
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| 181 | /* The same thing extended for non-constant arguments. Here MSGCTXT and MSGID
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| 182 | can be arbitrary expressions. But for string literals these macros are
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| 183 | less efficient than those above. */
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| 184 |
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| 185 | #include <string.h>
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| 186 |
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| 187 | /* GNULIB_NO_VLA can be defined to disable use of VLAs even if supported.
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| 188 | This relates to the -Wvla and -Wvla-larger-than warnings, enabled in
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| 189 | the default GCC many warnings set. This allows programs to disable use
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| 190 | of VLAs, which may be unintended, or may be awkward to support portably,
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| 191 | or may have security implications due to non-deterministic stack usage. */
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| 192 |
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| 193 | #if (!defined GNULIB_NO_VLA \
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| 194 | && defined __STDC_VERSION__ && 199901L <= __STDC_VERSION__ \
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| 195 | && !defined __STDC_NO_VLA__)
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| 196 | # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 1
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| 197 | #else
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| 198 | # define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 0
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| 199 | #endif
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| 200 |
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| 201 | #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
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| 202 | #include <stdlib.h>
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| 203 | #endif
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| 204 |
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| 205 | #define pgettext_expr(Msgctxt, Msgid) \
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| 206 | dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES)
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| 207 | #define dpgettext_expr(Domainname, Msgctxt, Msgid) \
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| 208 | dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES)
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| 209 |
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| 210 | #if defined __GNUC__ || defined __clang__
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| 211 | __inline
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| 212 | #else
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| 213 | #ifdef __cplusplus
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| 214 | inline
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| 215 | #endif
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| 216 | #endif
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| 217 | static const char *
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| 218 | dcpgettext_expr (const char *domain,
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| 219 | const char *msgctxt, const char *msgid,
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| 220 | int category)
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| 221 | {
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| 222 | size_t msgctxt_len = strlen (msgctxt) + 1;
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| 223 | size_t msgid_len = strlen (msgid) + 1;
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| 224 | const char *translation;
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| 225 | #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
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| 226 | char msg_ctxt_id[msgctxt_len + msgid_len];
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| 227 | #else
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| 228 | char buf[1024];
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| 229 | char *msg_ctxt_id =
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| 230 | (msgctxt_len + msgid_len <= sizeof (buf)
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| 231 | ? buf
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| 232 | : (char *) malloc (msgctxt_len + msgid_len));
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| 233 | if (msg_ctxt_id != NULL)
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| 234 | #endif
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| 235 | {
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| 236 | int found_translation;
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| 237 | memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
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| 238 | msg_ctxt_id[msgctxt_len - 1] = '\004';
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| 239 | memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
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| 240 | translation = dcgettext (domain, msg_ctxt_id, category);
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| 241 | found_translation = (translation != msg_ctxt_id);
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| 242 | #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
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| 243 | if (msg_ctxt_id != buf)
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| 244 | free (msg_ctxt_id);
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| 245 | #endif
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| 246 | if (found_translation)
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| 247 | return translation;
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| 248 | }
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| 249 | return msgid;
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| 250 | }
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| 251 |
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| 252 | #define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \
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| 253 | dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
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| 254 | #define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
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| 255 | dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
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| 256 |
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| 257 | #if defined __GNUC__ || defined __clang__
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| 258 | __inline
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| 259 | #else
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| 260 | #ifdef __cplusplus
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| 261 | inline
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| 262 | #endif
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| 263 | #endif
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| 264 | static const char *
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| 265 | dcnpgettext_expr (const char *domain,
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| 266 | const char *msgctxt, const char *msgid,
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| 267 | const char *msgid_plural, unsigned long int n,
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| 268 | int category)
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| 269 | {
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| 270 | size_t msgctxt_len = strlen (msgctxt) + 1;
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| 271 | size_t msgid_len = strlen (msgid) + 1;
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| 272 | const char *translation;
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| 273 | #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
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| 274 | char msg_ctxt_id[msgctxt_len + msgid_len];
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| 275 | #else
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| 276 | char buf[1024];
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| 277 | char *msg_ctxt_id =
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| 278 | (msgctxt_len + msgid_len <= sizeof (buf)
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| 279 | ? buf
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| 280 | : (char *) malloc (msgctxt_len + msgid_len));
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| 281 | if (msg_ctxt_id != NULL)
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| 282 | #endif
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| 283 | {
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| 284 | int found_translation;
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| 285 | memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
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| 286 | msg_ctxt_id[msgctxt_len - 1] = '\004';
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| 287 | memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
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| 288 | translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
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| 289 | found_translation = !(translation == msg_ctxt_id || translation == msgid_plural);
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| 290 | #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
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| 291 | if (msg_ctxt_id != buf)
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| 292 | free (msg_ctxt_id);
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| 293 | #endif
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| 294 | if (found_translation)
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| 295 | return translation;
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| 296 | }
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| 297 | return (n == 1 ? msgid : msgid_plural);
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| 298 | }
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| 299 |
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| 300 | #endif /* _LIBGETTEXT_H */
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