mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-26 07:33:47 +00:00
301 lines
10 KiB
C
301 lines
10 KiB
C
/* Convenience header for conditional use of GNU <libintl.h>.
|
|
Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2023 Free
|
|
Software Foundation, Inc.
|
|
|
|
This file is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as
|
|
published by the Free Software Foundation; either version 2.1 of the
|
|
License, or (at your option) any later version.
|
|
|
|
This file 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 Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _LIBGETTEXT_H
|
|
#define _LIBGETTEXT_H 1
|
|
|
|
/* NLS can be disabled through the configure --disable-nls option
|
|
or through "#define ENABLE NLS 0" before including this file. */
|
|
#if defined ENABLE_NLS && 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)
|
|
|
|
#if defined __GNUC__ || defined __clang__
|
|
__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;
|
|
}
|
|
|
|
#if defined __GNUC__ || defined __clang__
|
|
__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>
|
|
|
|
/* GNULIB_NO_VLA can be defined to disable use of VLAs even if supported.
|
|
This relates to the -Wvla and -Wvla-larger-than warnings, enabled in
|
|
the default GCC many warnings set. This allows programs to disable use
|
|
of VLAs, which may be unintended, or may be awkward to support portably,
|
|
or may have security implications due to non-deterministic stack usage. */
|
|
|
|
#if (!defined GNULIB_NO_VLA \
|
|
&& defined __STDC_VERSION__ && 199901L <= __STDC_VERSION__ \
|
|
&& !defined __STDC_NO_VLA__)
|
|
# 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)
|
|
|
|
#if defined __GNUC__ || defined __clang__
|
|
__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)
|
|
|
|
#if defined __GNUC__ || defined __clang__
|
|
__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 */
|