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/* $OpenBSD: fld_link.c,v 1.7 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 *
****************************************************************************/
#include "form.priv.h"
MODULE_ID("$Id: fld_link.c,v 1.7 2023/10/17 09:52:10 nicm Exp $")
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : FIELD *link_field(FIELD *field, int frow, int fcol)
|
| Description : Duplicates the field at the specified position. The
| new field shares its buffers with the original one,
| the attributes are independent.
| If an error occurs, errno is set to
|
| E_BAD_ARGUMENT - invalid argument
| E_SYSTEM_ERROR - system error
|
| Return Values : Pointer to the new field or NULL if failure
+--------------------------------------------------------------------------*/
FORM_EXPORT(FIELD *)
link_field(FIELD *field, int frow, int fcol)
{
FIELD *New_Field = (FIELD *)0;
int err = E_BAD_ARGUMENT;
T((T_CALLED("link_field(%p,%d,%d)"), (void *)field, frow, fcol));
if (field && (frow >= 0) && (fcol >= 0) &&
((err = E_SYSTEM_ERROR) != 0) && /* trick: this resets the default error */
(New_Field = typeMalloc(FIELD, 1)))
{
T((T_CREATE("field %p"), (void *)New_Field));
*New_Field = *_nc_Default_Field;
New_Field->frow = (short)frow;
New_Field->fcol = (short)fcol;
New_Field->link = field->link;
field->link = New_Field;
New_Field->buf = field->buf;
New_Field->rows = field->rows;
New_Field->cols = field->cols;
New_Field->nrow = field->nrow;
New_Field->nbuf = field->nbuf;
New_Field->drows = field->drows;
New_Field->dcols = field->dcols;
New_Field->maxgrow = field->maxgrow;
New_Field->just = field->just;
New_Field->fore = field->fore;
New_Field->back = field->back;
New_Field->pad = field->pad;
New_Field->opts = field->opts;
New_Field->usrptr = field->usrptr;
if (_nc_Copy_Type(New_Field, field))
returnField(New_Field);
}
if (New_Field)
free_field(New_Field);
SET_ERROR(err);
returnField((FIELD *)0);
}
/* fld_link.c ends here */
|
