[glibc.git] / intl / libintl.h

/* libintl.h -- Message catalogs for internationalization.
   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
   This file is derived from the file libgettext.h in the GNU gettext package.

   This file is part of the GNU C Library.  Its master source is NOT part of
   the C library, however.  The master source lives in /gd/gnu/lib.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef _LIBINTL_H

#define _LIBINTL_H	1
#include <features.h>

/* We define an additional symbol to signal that we use the GNU
   implementation of gettext.  */
#define __USE_GNU_GETTEXT 1

__BEGIN_DECLS

/* Look up MSGID in the current default message catalog for the current
   LC_MESSAGES locale.  If not found, returns MSGID itself (the default
   text).  */
extern char *gettext __P ((__const char *__msgid));
extern char *__gettext __P ((__const char *__msgid));

/* Look up MSGID in the DOMAINNAME message catalog for the current
   LC_MESSAGES locale.  */
extern char *dgettext __P ((__const char *__domainname,
			    __const char *__msgid));
extern char *__dgettext __P ((__const char *__domainname,
			      __const char *__msgid));

/* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY
   locale.  */
extern char *dcgettext __P ((__const char *__domainname,
			     __const char *__msgid, int __category));
extern char *__dcgettext __P ((__const char *__domainname,
			       __const char *__msgid, int __category));


/* Set the current default message catalog to DOMAINNAME.
   If DOMAINNAME is null, return the current default.
   If DOMAINNAME is "", reset to the default of "messages".  */
extern char *textdomain __P ((__const char *__domainname));
extern char *__textdomain __P ((__const char *__domainname));

/* Specify that the DOMAINNAME message catalog will be found
   in DIRNAME rather than in the system locale data base.  */
extern char *bindtextdomain __P ((__const char *__domainname,
				  __const char *__dirname));
extern char *__bindtextdomain __P ((__const char *__domainname,
				    __const char *__dirname));


/* Optimized version of the function above.  */
#if defined __OPTIMIZE__

/* We need NULL for `gettext'.  */
#define __need_NULL
#include <stddef.h>

/* We need LC_MESSAGES for `dgettext'.  */
# include <locale.h>

/* These must be macros.  Inlined functions are useless because the
   `__builtin_constant_p' predicate in dcgettext would always return
   false.  */

# define gettext(msgid) dgettext (NULL, msgid)

# define dgettext(domainname, msgid)					      \
  dcgettext (domainname, msgid, LC_MESSAGES)

# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
/* Variable defined in loadmsgcat.c which gets incremented every time a
   new catalog is loaded.  */
extern int _nl_msg_cat_cntr;

#  define dcgettext(domainname, msgid, category)			      \
  (__extension__							      \
   ({									      \
     char *__result;							      \
     if (__builtin_constant_p (msgid))					      \
       {								      \
	 static char *__translation__;					      \
	 static int __catalog_counter__;				      \
	 if (! __translation__ || __catalog_counter__ != _nl_msg_cat_cntr)    \
	   {								      \
	     __translation__ =						      \
	       __dcgettext ((domainname), (msgid), (category));		      \
	     __catalog_counter__ = _nl_msg_cat_cntr;			      \
	   }								      \
	 __result = __translation__;					      \
       }								      \
     else								      \
       __result = __dcgettext ((domainname), (msgid), (category));	      \
     __result;								      \
    }))
# endif
#endif /* Optimizing. */


__END_DECLS

#endif /* libintl.h */
Commit	Line	Data
036cc82f	1	/* libintl.h -- Message catalogs for internationalization.
54d79e99 UD	2	Copyright (C) 1995, 1996 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.
2b83a2a4	5
54d79e99 UD	6	This file is part of the GNU C Library. Its master source is NOT part of
54d79e99 UD	7	the C library, however. The master source lives in /gd/gnu/lib.
0393dfd6	8
54d79e99 UD	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.
2b83a2a4	13
54d79e99 UD	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.
2b83a2a4	18
54d79e99 UD	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. */
2b83a2a4 RM	23
2b83a2a4 RM	24	#ifndef _LIBINTL_H
036cc82f	25
c709e372 RM	26	#define _LIBINTL_H 1
c709e372 RM	27	#include <features.h>
2b83a2a4	28
c709e372 RM	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
2b83a2a4 RM	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). */
be10a868 RM	38	extern char gettext __P ((__const char __msgid));
be10a868 RM	39	extern char __gettext __P ((__const char __msgid));
2b83a2a4 RM	40
	41	/* Look up MSGID in the DOMAINNAME message catalog for the current
	42	LC_MESSAGES locale. */
be10a868 RM	43	extern char dgettext __P ((__const char __domainname,
	44	__const char *__msgid));
	45	extern char __dgettext __P ((__const char __domainname,
	46	__const char *__msgid));
2b83a2a4 RM	47
	48	/* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY
	49	locale. */
be10a868 RM	50	extern char dcgettext __P ((__const char __domainname,
	51	__const char *__msgid, int __category));
	52	extern char __dcgettext __P ((__const char __domainname,
	53	__const char *__msgid, int __category));
2b83a2a4 RM	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". */
be10a868 RM	59	extern char textdomain __P ((__const char __domainname));
be10a868 RM	60	extern char __textdomain __P ((__const char __domainname));
2b83a2a4 RM	61
	62	/* Specify that the DOMAINNAME message catalog will be found
	63	in DIRNAME rather than in the system locale data base. */
be10a868 RM	64	extern char bindtextdomain __P ((__const char __domainname,
	65	__const char *__dirname));
	66	extern char __bindtextdomain __P ((__const char __domainname,
	67	__const char *__dirname));
c709e372	68
2b83a2a4	69
c709e372	70	/* Optimized version of the function above. */
036cc82f RM	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
c709e372 RM	81	`__builtin_constant_p' predicate in dcgettext would always return
c709e372 RM	82	false. */
2b83a2a4	83
be10a868	84	# define gettext(msgid) dgettext (NULL, msgid)
2b83a2a4	85
be10a868	86	# define dgettext(domainname, msgid) \
c709e372	87	dcgettext (domainname, msgid, LC_MESSAGES)
2b83a2a4	88
c709e372	89	# if __GNUC__ > 2 \|\| (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
036cc82f RM	90	/* Variable defined in loadmsgcat.c which gets incremented every time a
	91	new catalog is loaded. */
	92	extern int _nl_msg_cat_cntr;
	93
c709e372	94	# define dcgettext(domainname, msgid, category) \
2b83a2a4 RM	95	(__extension__ \
2b83a2a4 RM	96	({ \
036cc82f	97	char *__result; \
c709e372 RM	98	if (__builtin_constant_p (msgid)) \
c709e372 RM	99	{ \
c709e372 RM	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	} \
036cc82f	108	__result = __translation__; \
c709e372 RM	109	} \
c709e372 RM	110	else \
036cc82f RM	111	__result = __dcgettext ((domainname), (msgid), (category)); \
036cc82f RM	112	__result; \
2b83a2a4	113	}))
c709e372 RM	114	# endif
	115	#endif /* Optimizing. */
	116
	117
	118	__END_DECLS
2b83a2a4	119
c709e372	120	#endif /* libintl.h */