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/*
* mbsupport.h --- Localize determination of whether we have multibyte stuff.
*/
/*
* Copyright (C) 2004, 2005, 2011, 2012 the Free Software Foundation, Inc.
*
* This file is part of GAWK, the GNU implementation of the
* AWK Programming Language.
*
* GAWK is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GAWK 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/*
* This file is needed because we test for i18n support in 3 different
* places, and we want a consistent definition in all of them. Following
* the ``Don't Repeat Yourself'' principle from "The Pragmatic Programmer",
* we centralize the tests here.
*
* This test is the union of all the current tests.
*/
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifndef NO_MBSUPPORT
#if defined(HAVE_ISWCTYPE) \
&& defined(HAVE_LOCALE_H) \
&& (defined(HAVE_BTOWC) || defined(ZOS_USS)) \
&& defined(HAVE_MBRLEN) \
&& defined(HAVE_MBRTOWC) \
&& defined(HAVE_WCHAR_H) \
&& defined(HAVE_WCRTOMB) \
&& defined(HAVE_WCSCOLL) \
&& defined(HAVE_WCTYPE) \
&& defined(HAVE_WCTYPE_H) \
&& defined(HAVE_WCTYPE_T) \
&& defined(HAVE_WINT_T) \
&& defined(HAVE_ISWLOWER) \
&& defined(HAVE_ISWUPPER) \
&& defined(HAVE_TOWLOWER) \
&& defined(HAVE_TOWUPPER) \
&& (defined(HAVE_STDLIB_H) && defined(MB_CUR_MAX)) \
/* We can handle multibyte strings. */
# define MBS_SUPPORT 1
#else
# define MBS_SUPPORT 0
#endif
#else /* NO_MBSUPPORT is defined */
# define MBS_SUPPORT 0
#endif
#if ! MBS_SUPPORT
# undef MB_CUR_MAX
# define MB_CUR_MAX 1
/* All this glop is for dfa.c. Bleah. */
#ifndef __DJGPP__
#define wchar_t char
#endif
#define wctype_t int
#define wint_t int
#define mbstate_t int
#define WEOF EOF
#define towupper toupper
#define towlower tolower
#ifndef __DJGPP__
#define btowc(x) ((int)x)
#endif
#define iswalnum isalnum
#define iswalpha isalpha
#define iswupper isupper
#if defined(ZOS_USS)
#undef towupper
#undef towlower
#undef btowc
#undef iswalnum
#undef iswalpha
#undef iswupper
#undef wctype
#undef iswctype
#undef wcscoll
#endif
extern wctype_t wctype(const char *name);
extern int iswctype(wint_t wc, wctype_t desc);
extern int wcscoll(const wchar_t *ws1, const wchar_t *ws2);
#endif
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