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  1. /****************************************************************************
  2.  * Copyright (c) 1998 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 <Juergen.Pfeifer@T-Online.de> 1995,1997        *
  31.  ****************************************************************************/
  32.  
  33. /* Common internal header for menu and form library */
  34.  
  35. #if HAVE_CONFIG_H
  36. #  include <ncurses_cfg.h>
  37. #endif
  38.  
  39. #include <stdlib.h>
  40. #include <sys/types.h>
  41. #include <assert.h>
  42. #include <string.h>
  43. #include <ctype.h>
  44. #include <errno.h>
  45.  
  46. #if DECL_ERRNO
  47. extern int errno;
  48. #endif
  49.  
  50. /* in case of debug version we ignore the suppression of assertions */
  51. #ifdef TRACE
  52. #  ifdef NDEBUG
  53. #    undef NDEBUG
  54. #  endif
  55. #endif
  56.  
  57. #include <nc_alloc.h>
  58.  
  59. #ifdef USE_RCS_IDS
  60. #define MODULE_ID(id) static const char Ident[] = id;
  61. #else
  62. #define MODULE_ID(id) /*nothing*/
  63. #endif
  64.  
  65.  
  66. /* Maximum regular 8-bit character code */
  67. #define MAX_REGULAR_CHARACTER (0xff)
  68.  
  69. #define SET_ERROR(code) (errno=(code))
  70. #define GET_ERROR() (errno)
  71. #define RETURN(code) return( SET_ERROR(code) )
  72.  
  73. /* The few common values in the status fields for menus and forms */
  74. #define _POSTED         (0x01)  /* menu or form is posted                  */
  75. #define _IN_DRIVER      (0x02)  /* menu or form is processing hook routine */
  76.  
  77. /* Call object hook */
  78. #define Call_Hook( object, handler ) \
  79.    if ( (object) && ((object)->handler) )\
  80.    {\
  81.         (object)->status |= _IN_DRIVER;\
  82.         (object)->handler(object);\
  83.         (object)->status &= ~_IN_DRIVER;\
  84.    }
  85.  
  86. #define INLINE
  87.  
  88. #ifndef TRACE
  89. #  if CC_HAS_INLINE_FUNCS
  90. #    undef INLINE
  91. #    define INLINE inline
  92. #  endif
  93. #endif
  94.