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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: frm_data.c,v 1.9 2023/10/17 09:52:10 nicm Exp $	*/
/****************************************************************************
 * Copyright 2020,2021 Thomas E. Dickey                                     *
 * Copyright 1998-2010,2013 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                                    *
 ****************************************************************************/

#include "form.priv.h"

MODULE_ID("$Id: frm_data.c,v 1.9 2023/10/17 09:52:10 nicm Exp $")

/*---------------------------------------------------------------------------
|   Facility      :  libnform
|   Function      :  bool data_behind(const FORM *form)
|
|   Description   :  Check for off-screen data behind. This is nearly trivial
|                    because the beginning of a field is fixed.
|
|   Return Values :  TRUE   - there are off-screen data behind
|                    FALSE  - there are no off-screen data behind
+--------------------------------------------------------------------------*/
FORM_EXPORT(bool)
data_behind(const FORM *form)
{
  bool result = FALSE;

  T((T_CALLED("data_behind(%p)"), (const void *)form));

  if (form && (form->status & _POSTED) && form->current)
    {
      FIELD *field;

      field = form->current;
      if (!Single_Line_Field(field))
	{
	  result = (form->toprow == 0) ? FALSE : TRUE;
	}
      else
	{
	  result = (form->begincol == 0) ? FALSE : TRUE;
	}
    }
  returnBool(result);
}

/*---------------------------------------------------------------------------
|   Facility      :  libnform
|   Function      :  static char * Only_Padding(
|                                    WINDOW *w,
|                                    int len,
|                                    int pad)
|
|   Description   :  Test if 'length' cells starting at the current position
|                    contain a padding character.
|
|   Return Values :  true if only padding cells are found
+--------------------------------------------------------------------------*/
NCURSES_INLINE static bool
Only_Padding(WINDOW *w, int len, int pad)
{
  bool result = TRUE;
  int y, x, j;
  FIELD_CELL cell;

  getyx(w, y, x);
  for (j = 0; j < len; ++j)
    {
      if (wmove(w, y, x + j) != ERR)
	{
#if USE_WIDEC_SUPPORT
	  if (win_wch(w, &cell) != ERR)
	    {
	      if ((chtype)CharOf(cell) != ChCharOf(pad)
		  || cell.chars[1] != 0)
		{
		  result = FALSE;
		  break;
		}
	    }
#else
	  cell = (FIELD_CELL)winch(w);
	  if (ChCharOf(cell) != ChCharOf(pad))
	    {
	      result = FALSE;
	      break;
	    }
#endif
	}
      else
	{
	  /* if an error, return true: no non-padding text found */
	  break;
	}
    }
  /* no need to reset the cursor position; caller does this */
  return result;
}

/*---------------------------------------------------------------------------
|   Facility      :  libnform
|   Function      :  bool data_ahead(const FORM *form)
|
|   Description   :  Check for off-screen data ahead. This is more difficult
|                    because a dynamic field has a variable end.
|
|   Return Values :  TRUE   - there are off-screen data ahead
|                    FALSE  - there are no off-screen data ahead
+--------------------------------------------------------------------------*/
FORM_EXPORT(bool)
data_ahead(const FORM *form)
{
  bool result = FALSE;

  T((T_CALLED("data_ahead(%p)"), (const void *)form));

  if (form && (form->status & _POSTED) && form->current)
    {
      FIELD *field;
      bool cursor_moved = FALSE;
      int pos;

      field = form->current;
      assert(form->w);

      if (Single_Line_Field(field))
	{
	  pos = form->begincol + field->cols;
	  while (pos < field->dcols)
	    {
	      int check_len = field->dcols - pos;

	      if (check_len >= field->cols)
		check_len = field->cols;
	      cursor_moved = TRUE;
	      wmove(form->w, 0, pos);
	      if (Only_Padding(form->w, check_len, field->pad))
		pos += field->cols;
	      else
		{
		  result = TRUE;
		  break;
		}
	    }
	}
      else
	{
	  pos = form->toprow + field->rows;
	  while (pos < field->drows)
	    {
	      cursor_moved = TRUE;
	      wmove(form->w, pos, 0);
	      pos++;
	      if (!Only_Padding(form->w, field->cols, field->pad))
		{
		  result = TRUE;
		  break;
		}
	    }
	}

      if (cursor_moved)
	wmove(form->w, form->currow, form->curcol);
    }
  returnBool(result);
}

/* frm_data.c ends here */