GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libform/frm_data.c Lines: 0 34 0.0 %
Date: 2017-11-07 Branches: 0 42 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: frm_data.c,v 1.8 2015/01/23 22:48:51 krw Exp $	*/
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/****************************************************************************
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 * Copyright (c) 1998-2004,2005 Free Software Foundation, Inc.              *
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 *                                                                          *
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 * Permission is hereby granted, free of charge, to any person obtaining a  *
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 * copy of this software and associated documentation files (the            *
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 * "Software"), to deal in the Software without restriction, including      *
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 * without limitation the rights to use, copy, modify, merge, publish,      *
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 * distribute, distribute with modifications, sublicense, and/or sell       *
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 * copies of the Software, and to permit persons to whom the Software is    *
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 * furnished to do so, subject to the following conditions:                 *
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 *                                                                          *
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 * The above copyright notice and this permission notice shall be included  *
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 * in all copies or substantial portions of the Software.                   *
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 *                                                                          *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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 *                                                                          *
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 * Except as contained in this notice, the name(s) of the above copyright   *
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 * holders shall not be used in advertising or otherwise to promote the     *
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 * sale, use or other dealings in this Software without prior written       *
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 * authorization.                                                           *
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 ****************************************************************************/
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/****************************************************************************
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 *   Author:  Juergen Pfeifer, 1995,1997                                    *
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 ****************************************************************************/
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#include "form.priv.h"
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MODULE_ID("$Id: frm_data.c,v 1.8 2015/01/23 22:48:51 krw Exp $")
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/*---------------------------------------------------------------------------
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|   Facility      :  libnform
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|   Function      :  bool data_behind(const FORM *form)
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|
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|   Description   :  Check for off-screen data behind. This is nearly trivial
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|                    because the beginning of a field is fixed.
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|
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|   Return Values :  TRUE   - there are off-screen data behind
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|                    FALSE  - there are no off-screen data behind
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+--------------------------------------------------------------------------*/
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NCURSES_EXPORT(bool)
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data_behind(const FORM *form)
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{
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  bool result = FALSE;
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  T((T_CALLED("data_behind(%p)"), form));
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  if (form && (form->status & _POSTED) && form->current)
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    {
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      FIELD *field;
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      field = form->current;
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      if (!Single_Line_Field(field))
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	{
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	  result = (form->toprow == 0) ? FALSE : TRUE;
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	}
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      else
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	{
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	  result = (form->begincol == 0) ? FALSE : TRUE;
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	}
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    }
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  returnBool(result);
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}
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/*---------------------------------------------------------------------------
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|   Facility      :  libnform
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|   Function      :  static char * Only_Padding(
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|                                    WINDOW *w,
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|                                    int len,
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|                                    int pad)
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|
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|   Description   :  Test if 'length' cells starting at the current position
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|                    contain a padding character.
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|
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|   Return Values :  true if only padding cells are found
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+--------------------------------------------------------------------------*/
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NCURSES_INLINE static bool
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Only_Padding(WINDOW *w, int len, int pad)
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{
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  bool result = TRUE;
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  int y, x, j;
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  FIELD_CELL cell;
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  getyx(w, y, x);
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  for (j = 0; j < len; ++j)
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    {
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      if (wmove(w, y, x + j) != ERR)
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	{
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#if USE_WIDEC_SUPPORT
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	  if (win_wch(w, &cell) != ERR)
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	    {
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	      if ((chtype)CharOf(cell) != ChCharOf(pad)
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		  || cell.chars[1] != 0)
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		{
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		  result = FALSE;
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		  break;
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		}
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	    }
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#else
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	  cell = winch(w);
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	  if (ChCharOf(cell) != ChCharOf(pad))
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	    {
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	      result = FALSE;
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	      break;
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	    }
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#endif
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	}
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      else
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	{
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	  /* if an error, return true: no non-padding text found */
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	  break;
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	}
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    }
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  /* no need to reset the cursor position; caller does this */
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  return result;
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}
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/*---------------------------------------------------------------------------
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|   Facility      :  libnform
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|   Function      :  bool data_ahead(const FORM *form)
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|
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|   Description   :  Check for off-screen data ahead. This is more difficult
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|                    because a dynamic field has a variable end.
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|
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|   Return Values :  TRUE   - there are off-screen data ahead
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|                    FALSE  - there are no off-screen data ahead
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+--------------------------------------------------------------------------*/
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NCURSES_EXPORT(bool)
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data_ahead(const FORM *form)
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{
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  bool result = FALSE;
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  T((T_CALLED("data_ahead(%p)"), form));
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  if (form && (form->status & _POSTED) && form->current)
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    {
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      FIELD *field;
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      bool cursor_moved = FALSE;
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      int pos;
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      field = form->current;
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      assert(form->w);
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      if (Single_Line_Field(field))
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	{
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	  int check_len;
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	  pos = form->begincol + field->cols;
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	  while (pos < field->dcols)
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	    {
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	      check_len = field->dcols - pos;
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	      if (check_len >= field->cols)
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		check_len = field->cols;
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	      cursor_moved = TRUE;
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	      wmove(form->w, 0, pos);
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	      if (Only_Padding(form->w, check_len, field->pad))
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		pos += field->cols;
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	      else
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		{
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		  result = TRUE;
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		  break;
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		}
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	    }
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	}
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      else
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	{
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	  pos = form->toprow + field->rows;
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	  while (pos < field->drows)
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	    {
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	      cursor_moved = TRUE;
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	      wmove(form->w, pos, 0);
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	      pos++;
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	      if (!Only_Padding(form->w, field->cols, field->pad))
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		{
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		  result = TRUE;
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		  break;
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		}
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	    }
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	}
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      if (cursor_moved)
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	wmove(form->w, form->currow, form->curcol);
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    }
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  returnBool(result);
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}
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/* frm_data.c ends here */