xref: /freebsd/contrib/ncurses/menu/mf_common.h (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1 /****************************************************************************
2  * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc.              *
3  *                                                                          *
4  * Permission is hereby granted, free of charge, to any person obtaining a  *
5  * copy of this software and associated documentation files (the            *
6  * "Software"), to deal in the Software without restriction, including      *
7  * without limitation the rights to use, copy, modify, merge, publish,      *
8  * distribute, distribute with modifications, sublicense, and/or sell       *
9  * copies of the Software, and to permit persons to whom the Software is    *
10  * furnished to do so, subject to the following conditions:                 *
11  *                                                                          *
12  * The above copyright notice and this permission notice shall be included  *
13  * in all copies or substantial portions of the Software.                   *
14  *                                                                          *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22  *                                                                          *
23  * Except as contained in this notice, the name(s) of the above copyright   *
24  * holders shall not be used in advertising or otherwise to promote the     *
25  * sale, use or other dealings in this Software without prior written       *
26  * authorization.                                                           *
27  ****************************************************************************/
28 
29 /****************************************************************************
30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
31  ****************************************************************************/
32 
33 /* $Id: mf_common.h,v 0.22 2005/11/26 15:26:52 tom Exp $ */
34 
35 /* Common internal header for menu and form library */
36 
37 #ifndef MF_COMMON_H_incl
38 #define MF_COMMON_H_incl 1
39 
40 #include <ncurses_cfg.h>
41 #include <curses.h>
42 
43 #include <stdlib.h>
44 #include <sys/types.h>
45 #include <assert.h>
46 #include <string.h>
47 #include <ctype.h>
48 #include <errno.h>
49 
50 #if DECL_ERRNO
51 extern int errno;
52 #endif
53 
54 /* in case of debug version we ignore the suppression of assertions */
55 #ifdef TRACE
56 #  ifdef NDEBUG
57 #    undef NDEBUG
58 #  endif
59 #endif
60 
61 #include <nc_alloc.h>
62 
63 #if USE_RCS_IDS
64 #define MODULE_ID(id) static const char Ident[] = id;
65 #else
66 #define MODULE_ID(id) /*nothing*/
67 #endif
68 
69 
70 /* Maximum regular 8-bit character code */
71 #define MAX_REGULAR_CHARACTER (0xff)
72 
73 #define SET_ERROR(code) (errno=(code))
74 #define GET_ERROR()     (errno)
75 
76 #ifdef TRACE
77 #define RETURN(code)    returnCode( SET_ERROR(code) )
78 #else
79 #define RETURN(code)    return( SET_ERROR(code) )
80 #endif
81 
82 /* The few common values in the status fields for menus and forms */
83 #define _POSTED         (0x01U)  /* menu or form is posted                  */
84 #define _IN_DRIVER      (0x02U)  /* menu or form is processing hook routine */
85 
86 /* Call object hook */
87 #define Call_Hook( object, handler ) \
88    if ( (object) != 0 && ((object)->handler) != (void *) 0 )\
89    {\
90 	(object)->status |= _IN_DRIVER;\
91 	(object)->handler(object);\
92 	(object)->status &= ~_IN_DRIVER;\
93    }
94 
95 #endif /* MF_COMMON_H_incl */
96