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/****************************************************************************
 * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
 ****************************************************************************/

/* Common internal header for menu and form library */

#if HAVE_CONFIG_H
#  include <ncurses_cfg.h>
#endif

#include <stdlib.h>
#include <sys/types.h>
#include <assert.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>

#if DECL_ERRNO
extern int errno;
#endif

/* in case of debug version we ignore the suppression of assertions */
#ifdef TRACE
#  ifdef NDEBUG
#    undef NDEBUG
#  endif
#endif

#include <nc_alloc.h>

#if USE_RCS_IDS
#define MODULE_ID(id) static const char Ident[] = id;
#else
#define MODULE_ID(id) /*nothing*/
#endif


/* Maximum regular 8-bit character code */
#define MAX_REGULAR_CHARACTER (0xff)

#define SET_ERROR(code) (errno=(code))
#define GET_ERROR() (errno)
#define RETURN(code) return( SET_ERROR(code) )

/* The few common values in the status fields for menus and forms */
#define _POSTED         (0x01)  /* menu or form is posted                  */
#define _IN_DRIVER      (0x02)  /* menu or form is processing hook routine */

/* Call object hook */
#define Call_Hook( object, handler ) \
   if ( (object) && ((object)->handler) )\
   {\
	(object)->status |= _IN_DRIVER;\
	(object)->handler(object);\
	(object)->status &= ~_IN_DRIVER;\
   }

#define INLINE

#ifndef TRACE
#  if CC_HAS_INLINE_FUNCS
#    undef INLINE
#    define INLINE inline
#  endif
#endif