1/* Message catalogs for internationalization.
2   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
3   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
4   This file is derived from the file libgettext.h in the GNU gettext package.
5
6   This file is part of the GNU C Library.  Its master source is NOT part of
7   the C library, however.
8
9   The GNU C Library is free software; you can redistribute it and/or
10   modify it under the terms of the GNU Library General Public License as
11   published by the Free Software Foundation; either version 2 of the
12   License, or (at your option) any later version.
13
14   The GNU C Library is distributed in the hope that it will be useful,
15   but WITHOUT ANY WARRANTY; without even the implied warranty of
16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17   Library General Public License for more details.
18
19   You should have received a copy of the GNU Library General Public
20   License along with the GNU C Library; see the file COPYING.LIB.  If not,
21   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22   Boston, MA 02111-1307, USA.  */
23
24#ifndef _LIBINTL_H
25#define _LIBINTL_H	1
26
27#include <features.h>
28
29/* We define an additional symbol to signal that we use the GNU
30   implementation of gettext.  */
31#define __USE_GNU_GETTEXT 1
32
33__BEGIN_DECLS
34
35/* Look up MSGID in the current default message catalog for the current
36   LC_MESSAGES locale.  If not found, returns MSGID itself (the default
37   text).  */
38extern char *gettext __P ((__const char *__msgid));
39extern char *__gettext __P ((__const char *__msgid));
40
41/* Look up MSGID in the DOMAINNAME message catalog for the current
42   LC_MESSAGES locale.  */
43extern char *dgettext __P ((__const char *__domainname,
44			    __const char *__msgid));
45extern char *__dgettext __P ((__const char *__domainname,
46			      __const char *__msgid));
47
48/* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY
49   locale.  */
50extern char *dcgettext __P ((__const char *__domainname,
51			     __const char *__msgid, int __category));
52extern char *__dcgettext __P ((__const char *__domainname,
53			       __const char *__msgid, 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".  */
59extern char *textdomain __P ((__const char *__domainname));
60extern char *__textdomain __P ((__const char *__domainname));
61
62/* Specify that the DOMAINNAME message catalog will be found
63   in DIRNAME rather than in the system locale data base.  */
64extern char *bindtextdomain __P ((__const char *__domainname,
65				  __const char *__dirname));
66extern char *__bindtextdomain __P ((__const char *__domainname,
67				    __const char *__dirname));
68
69
70/* Optimized version of the function above.  */
71#if defined __OPTIMIZE__
72
73/* We need NULL for `gettext'.  */
74# define __need_NULL
75# include <stddef.h>
76
77/* We need LC_MESSAGES for `dgettext'.  */
78# include <locale.h>
79
80/* These must be macros.  Inlined functions are useless because the
81   `__builtin_constant_p' predicate in dcgettext would always return
82   false.  */
83
84# define gettext(msgid) dgettext (NULL, msgid)
85
86# define dgettext(domainname, msgid)					      \
87  dcgettext (domainname, msgid, LC_MESSAGES)
88
89# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
90/* Variable defined in loadmsgcat.c which gets incremented every time a
91   new catalog is loaded.  */
92extern int _nl_msg_cat_cntr;
93
94#  define dcgettext(domainname, msgid, category)			      \
95  (__extension__							      \
96   ({									      \
97     char *__result;							      \
98     if (__builtin_constant_p (msgid))					      \
99       {								      \
100	 static char *__translation__;					      \
101	 static int __catalog_counter__;				      \
102	 if (! __translation__ || __catalog_counter__ != _nl_msg_cat_cntr)    \
103	   {								      \
104	     __translation__ =						      \
105	       __dcgettext ((domainname), (msgid), (category));		      \
106	     __catalog_counter__ = _nl_msg_cat_cntr;			      \
107	   }								      \
108	 __result = __translation__;					      \
109       }								      \
110     else								      \
111       __result = __dcgettext ((domainname), (msgid), (category));	      \
112     __result;								      \
113    }))
114# endif
115#endif /* Optimizing. */
116
117
118__END_DECLS
119
120#endif /* libintl.h */
121