Return to m_item_new.c CVS log

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Update ncurses and associated libraries (form, panel, menu) to
6.4-20230826 (from 5.7-20081102).

Based on result from Thomas Dickey's ncu2openbsd script and then
modified. Switches to the upstream tput. Major bump for the ncurses
libraries and for libedit and libreadline.

Help from tb, millert.

ok deraadt sthen

/* $OpenBSD: m_item_new.c,v 1.10 2023/10/17 09:52:10 nicm Exp $ */

/****************************************************************************
 * Copyright 2020-2021 Thomas E. Dickey                                     *
 * Copyright 1998-2010,2012 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, 1995,1997                                    *
 ****************************************************************************/

/***************************************************************************
* Module m_item_new                                                        *
* Create and destroy menu items                                            *
* Set and get marker string for menu                                       *
***************************************************************************/

#include "menu.priv.h"

#if USE_WIDEC_SUPPORT
#if HAVE_WCTYPE_H
#include <wctype.h>
#endif
#endif

MODULE_ID("$Id: m_item_new.c,v 1.10 2023/10/17 09:52:10 nicm Exp $")

/*---------------------------------------------------------------------------
|   Facility      :  libnmenu
|   Function      :  bool Is_Printable_String(const char *s)
|
|   Description   :  Checks whether or not the string contains only printable
|                    characters.
|
|   Return Values :  TRUE     - if string is printable
|                    FALSE    - if string contains non-printable characters
+--------------------------------------------------------------------------*/
static bool
Is_Printable_String(const char *s)
{
  int result = TRUE;

#if USE_WIDEC_SUPPORT
  int count = (int)mbstowcs(0, s, 0);
  wchar_t *temp = 0;

  assert(s);

  if (count > 0
      && (temp = typeCalloc(wchar_t, (2 + (unsigned)count))) != 0)
    {
      int n;

      mbstowcs(temp, s, (unsigned)count);
      for (n = 0; n < count; ++n)
	if (!iswprint((wint_t)temp[n]))
	  {
	    result = FALSE;
	    break;
	  }
      free(temp);
    }
#else
  assert(s);
  while (*s)
    {
      if (!isprint(UChar(*s)))
	{
	  result = FALSE;
	  break;
	}
      s++;
    }
#endif
  return result;
}

/*---------------------------------------------------------------------------
|   Facility      :  libnmenu
|   Function      :  ITEM *new_item(char *name, char *description)
|
|   Description   :  Create a new item with name and description. Return
|                    a pointer to this new item.
|                    N.B.: an item must(!) have a name.
|
|   Return Values :  The item pointer or NULL if creation failed.
+--------------------------------------------------------------------------*/
MENU_EXPORT(ITEM *)
new_item(const char *name, const char *description)
{
  ITEM *item;

  T((T_CALLED("new_item(\"%s\", \"%s\")"),
     name ? name : "",
     description ? description : ""));

  if (!name || (*name == '\0') || !Is_Printable_String(name))
    {
      item = (ITEM *)0;
      SET_ERROR(E_BAD_ARGUMENT);
    }
  else
    {
      item = typeCalloc(ITEM, 1);

      if (item)
	{
	  T((T_CREATE("item %p"), (void *)item));
	  *item = _nc_Default_Item;	/* hope we have struct assignment */

	  item->name.length = (unsigned short)strlen(name);
	  item->name.str = name;

	  if (description && (*description != '\0') &&
	      Is_Printable_String(description))
	    {
	      item->description.length = (unsigned short)strlen(description);
	      item->description.str = description;
	    }
	  else
	    {
	      item->description.length = 0;
	      item->description.str = (char *)0;
	    }
	}
      else
	SET_ERROR(E_SYSTEM_ERROR);
    }
  returnItem(item);
}

/*---------------------------------------------------------------------------
|   Facility      :  libnmenu
|   Function      :  int free_item(ITEM *item)
|
|   Description   :  Free the allocated storage for this item.
|                    N.B.: a connected item can't be freed.
|
|   Return Values :  E_OK              - success
|                    E_BAD_ARGUMENT    - invalid value has been passed
|                    E_CONNECTED       - item is still connected to a menu
+--------------------------------------------------------------------------*/
MENU_EXPORT(int)
free_item(ITEM *item)
{
  T((T_CALLED("free_item(%p)"), (void *)item));

  if (!item)
    RETURN(E_BAD_ARGUMENT);

  if (item->imenu)
    RETURN(E_CONNECTED);

  free(item);

  RETURN(E_OK);
}

/*---------------------------------------------------------------------------
|   Facility      :  libnmenu
|   Function      :  int set_menu_mark( MENU *menu, const char *mark )
|
|   Description   :  Set the mark string used to indicate the current
|                    item (single-valued menu) or the selected items
|                    (multi-valued menu).
|                    The mark argument may be NULL, in which case no
|                    marker is used.
|                    This might be a little bit tricky, because this may
|                    affect the geometry of the menu, which we don't allow
|                    if it is already posted.
|
|   Return Values :  E_OK               - success
|                    E_BAD_ARGUMENT     - an invalid value has been passed
|                    E_SYSTEM_ERROR     - no memory to store mark
+--------------------------------------------------------------------------*/
MENU_EXPORT(int)
set_menu_mark(MENU *menu, const char *mark)
{
  short l;

  T((T_CALLED("set_menu_mark(%p,%s)"), (void *)menu, _nc_visbuf(mark)));

  if (mark && (*mark != '\0') && Is_Printable_String(mark))
    l = (short)strlen(mark);
  else
    l = 0;

  if (menu)
    {
      char *old_mark = menu->mark;
      unsigned short old_status = menu->status;

      if (menu->status & _POSTED)
	{
	  /* If the menu is already posted, the geometry is fixed. Then
	     we can only accept a mark with exactly the same length */
	  if (menu->marklen != l)
	    RETURN(E_BAD_ARGUMENT);
	}
      menu->marklen = l;
      if (l)
	{
	  menu->mark = strdup(mark);
	  if (menu->mark)
	    {
	      if (menu != &_nc_Default_Menu)
		SetStatus(menu, _MARK_ALLOCATED);
	    }
	  else
	    {
	      menu->mark = old_mark;
	      menu->marklen = (short)((old_mark != 0) ? strlen(old_mark) : 0);
	      RETURN(E_SYSTEM_ERROR);
	    }
	}
      else
	menu->mark = (char *)0;

      if ((old_status & _MARK_ALLOCATED) && old_mark)
	free(old_mark);

      if (menu->status & _POSTED)
	{
	  _nc_Draw_Menu(menu);
	  _nc_Show_Menu(menu);
	}
      else
	{
	  /* Recalculate the geometry */
	  _nc_Calculate_Item_Length_and_Width(menu);
	}
    }
  else
    {
      returnCode(set_menu_mark(&_nc_Default_Menu, mark));
    }
  RETURN(E_OK);
}

/*---------------------------------------------------------------------------
|   Facility      :  libnmenu
|   Function      :  char *menu_mark(const MENU *menu)
|
|   Description   :  Return a pointer to the marker string
|
|   Return Values :  The marker string pointer or NULL if no marker defined
+--------------------------------------------------------------------------*/
MENU_EXPORT(const char *)
menu_mark(const MENU *menu)
{
  T((T_CALLED("menu_mark(%p)"), (const void *)menu));
  returnPtr(Normalize_Menu(menu)->mark);
}

/* m_item_new.c */