intl/libintl.h

   1 /* libintl.h -- Message catalogs for internationalization.
   2 Copyright (C) 1995 Free Software Foundation, Inc.
   3
   4 This program is free software; you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation; either version 2, or (at your option)
   7 any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #ifndef _LIBINTL_H
  19 #define _LIBINTL_H      1
  20
  21 #ifdef HAVE_LOCALE_H
  22 # include <locale.h>
  23 #endif
  24
  25 /* We define an additional symbol to signal that we use the GNU
  26    implementation of gettext.  */
  27 #define __USE_GNU_GETTEXT 1
  28
  29 #ifndef __P
  30 # if __STDC__
  31 #  define __P(args) args
  32 # else
  33 #  define __P(args) ()
  34 # endif
  35 #endif
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 /* Look up MSGID in the current default message catalog for the current
  42    LC_MESSAGES locale.  If not found, returns MSGID itself (the default
  43    text).  */
  44 extern char *gettext __P ((const char *__msgid));
  45
  46 /* Look up MSGID in the DOMAINNAME message catalog for the current
  47    LC_MESSAGES locale.  */
  48 extern char *dgettext __P ((const char *__domainname, 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, const char *__msgid,
  53                              int __category));
  54
  55
  56 /* Set the current default message catalog to DOMAINNAME.
  57    If DOMAINNAME is null, return the current default.
  58    If DOMAINNAME is "", reset to the default of "messages".  */
  59 extern char *textdomain __P ((const char *__domainname));
  60
  61 /* Specify that the DOMAINNAME message catalog will be found
  62    in DIRNAME rather than in the system locale data base.  */
  63 extern char *bindtextdomain __P ((const char *__domainname,
  64                                   const char *__dirname));
  65
  66
  67 /* Optimized version of the functions above.  */
  68 #if defined __OPTIMIZED
  69 /* These must be a macro.  Inlined functions are useless because the
  70    `__builtin_constant_p' predicate in dcgettext would always return
  71    false.  */
  72
  73 # define gettext(msgid) dgettext ((char *) 0, msgid)
  74
  75 # define dgettext(domainname, msgid)                                          \
  76   dcgettext (domainname, msgid, LC_MESSAGES)
  77
  78 # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
  79 #  define dcgettext(domainname, msgid, category)                              \
  80   (__extension__                                                              \
  81    ({                                                                         \
  82      char *result;                                                            \
  83      if (__builtin_constant_p (msgid))                                        \
  84        {                                                                      \
  85          extern int _nl_msg_cat_cntr;                                         \
  86          static char *__translation__;                                        \
  87          static int __catalog_counter__;                                      \
  88          if (! __translation__ || __catalog_counter__ != _nl_msg_cat_cntr)    \
  89            {                                                                  \
  90              __translation__ =                                                \
  91                (dcgettext) ((domainname), (msgid), (category));               \
  92              __catalog_counter__ = _nl_msg_cat_cntr;                          \
  93            }                                                                  \
  94          result = __translation__;                                            \
  95        }                                                                      \
  96      else                                                                     \
  97        result = (dcgettext) ((domainname), (msgid), (category));              \
  98      result;                                                                  \
  99     }))
 100 # endif
 101 #endif /* Optimizing. */
 102
 103
 104 #ifdef __cplusplus
 105 }
 106 #endif
 107
 108 #endif /* libintl.h */