intl/libintl.glibc

   1 /* libgettext.h -- Message catalogs for internationalization.
   2 Copyright (C) 1995 Free Software Foundation, Inc.
   3 This file is part of the GNU C Library.
   4 Contributed by Ulrich Drepper.
   5 This file is derived from the file libgettext.h in the GNU gettext package.
   6
   7 The GNU C Library is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU Library General Public License as
   9 published by the Free Software Foundation; either version 2 of the
  10 License, or (at your option) any later version.
  11
  12 The GNU C Library is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 Library General Public License for more details.
  16
  17 You should have received a copy of the GNU Library General Public
  18 License along with the GNU C Library; see the file COPYING.LIB.  If
  19 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef _LIBINTL_H
  23 #define _LIBINTL_H      1
  24 #include <features.h>
  25
  26 #include <locale.h>
  27
  28 #define __need_NULL
  29 #include <stddef.h>
  30
  31 /* We define an additional symbol to signal that we use the GNU
  32    implementation of gettext.  */
  33 #define __USE_GNU_GETTEXT 1
  34
  35 __BEGIN_DECLS
  36
  37 /* Look up MSGID in the current default message catalog for the current
  38    LC_MESSAGES locale.  If not found, returns MSGID itself (the default
  39    text).  */
  40 extern char *gettext __P ((__const char *__msgid));
  41 extern char *__gettext __P ((__const char *__msgid));
  42
  43 /* Look up MSGID in the DOMAINNAME message catalog for the current
  44    LC_MESSAGES locale.  */
  45 extern char *dgettext __P ((__const char *__domainname,
  46                             __const char *__msgid));
  47 extern char *__dgettext __P ((__const char *__domainname,
  48                               __const char *__msgid));
  49
  50 /* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY
  51    locale.  */
  52 extern char *dcgettext __P ((__const char *__domainname,
  53                              __const char *__msgid, int __category));
  54 extern char *__dcgettext __P ((__const char *__domainname,
  55                                __const char *__msgid, int __category));
  56
  57
  58 /* Set the current default message catalog to DOMAINNAME.
  59    If DOMAINNAME is null, return the current default.
  60    If DOMAINNAME is "", reset to the default of "messages".  */
  61 extern char *textdomain __P ((__const char *__domainname));
  62 extern char *__textdomain __P ((__const char *__domainname));
  63
  64 /* Specify that the DOMAINNAME message catalog will be found
  65    in DIRNAME rather than in the system locale data base.  */
  66 extern char *bindtextdomain __P ((__const char *__domainname,
  67                                   __const char *__dirname));
  68 extern char *__bindtextdomain __P ((__const char *__domainname,
  69                                     __const char *__dirname));
  70
  71
  72 /* Optimized version of the function above.  */
  73 #if defined __OPTIMIZED
  74 /* These must be a macro.  Inlined functions are useless because the
  75    `__builtin_constant_p' predicate in dcgettext would always return
  76    false.  */
  77
  78 # define gettext(msgid) dgettext (NULL, msgid)
  79
  80 # define dgettext(domainname, msgid)                                          \
  81   dcgettext (domainname, msgid, LC_MESSAGES)
  82
  83 # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
  84 #  define dcgettext(domainname, msgid, category)                              \
  85   (__extension__                                                              \
  86    ({                                                                         \
  87      char *result;                                                            \
  88      if (__builtin_constant_p (msgid))                                        \
  89        {                                                                      \
  90          extern int _nl_msg_cat_cntr;                                         \
  91          static char *__translation__;                                        \
  92          static int __catalog_counter__;                                      \
  93          if (! __translation__ || __catalog_counter__ != _nl_msg_cat_cntr)    \
  94            {                                                                  \
  95              __translation__ =                                                \
  96                __dcgettext ((domainname), (msgid), (category));               \
  97              __catalog_counter__ = _nl_msg_cat_cntr;                          \
  98            }                                                                  \
  99          result = __translation__;                                            \
 100        }                                                                      \
 101      else                                                                     \
 102        result = __dcgettext ((domainname), (msgid), (category));              \
 103      result;                                                                  \
 104     }))
 105 # endif
 106 #endif /* Optimizing. */
 107
 108
 109 __END_DECLS
 110
 111 #endif /* libintl.h */