/*      $NetBSD: gettext.h,v 1.6 2024/08/18 20:47:24 christos Exp $     */

/* Convenience header for conditional use of GNU <libintl.h>.
  Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2018 Free Software
  Foundation, Inc.

  This program 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, 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 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)

#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
       || (__STDC_VERSION__ >= 201112L && !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)

#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 */

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