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/* $OpenBSD: fty_alpha.c,v 1.10 2023/10/17 09:52:10 nicm Exp $ */
/****************************************************************************
* Copyright 2020 Thomas E. Dickey *
* Copyright 1998-2009,2010 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 *
* *
***************************************************************************/
#include "form.priv.h"
MODULE_ID("$Id: fty_alpha.c,v 1.10 2023/10/17 09:52:10 nicm Exp $")
#define thisARG alphaARG
typedef struct
{
int width;
}
thisARG;
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void *Generic_This_Type(va_list *ap)
|
| Description : Allocate structure for alpha type argument.
|
| Return Values : Pointer to argument structure or NULL on error
+--------------------------------------------------------------------------*/
static void *
Generic_This_Type(void *arg)
{
thisARG *argp = (thisARG *)0;
if (arg)
{
argp = typeMalloc(thisARG, 1);
if (argp)
{
T((T_CREATE("thisARG %p"), (void *)argp));
argp->width = *((int *)arg);
}
}
return ((void *)argp);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void *Make_This_Type(va_list *ap)
|
| Description : Allocate structure for alpha type argument.
|
| Return Values : Pointer to argument structure or NULL on error
+--------------------------------------------------------------------------*/
static void *
Make_This_Type(va_list *ap)
{
int w = va_arg(*ap, int);
return Generic_This_Type((void *)&w);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void *Copy_This_Type(const void * argp)
|
| Description : Copy structure for alpha type argument.
|
| Return Values : Pointer to argument structure or NULL on error.
+--------------------------------------------------------------------------*/
static void *
Copy_This_Type(const void *argp)
{
const thisARG *ap = (const thisARG *)argp;
thisARG *result = typeMalloc(thisARG, 1);
if (result)
{
T((T_CREATE("thisARG %p"), (void *)result));
*result = *ap;
}
return ((void *)result);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void Free_This_Type(void *argp)
|
| Description : Free structure for alpha type argument.
|
| Return Values : -
+--------------------------------------------------------------------------*/
static void
Free_This_Type(void *argp)
{
if (argp)
free(argp);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : static bool Check_This_Character(
| int c,
| const void *argp)
|
| Description : Check a character for the alpha type.
|
| Return Values : TRUE - character is valid
| FALSE - character is invalid
+--------------------------------------------------------------------------*/
static bool
Check_This_Character(int c, const void *argp GCC_UNUSED)
{
#if USE_WIDEC_SUPPORT
if (iswalpha((wint_t)c))
return TRUE;
#endif
return (isalpha(UChar(c)) ? TRUE : FALSE);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : static bool Check_This_Field(
| FIELD *field,
| const void *argp)
|
| Description : Validate buffer content to be a valid alpha value
|
| Return Values : TRUE - field is valid
| FALSE - field is invalid
+--------------------------------------------------------------------------*/
static bool
Check_This_Field(FIELD *field, const void *argp)
{
int width = ((const thisARG *)argp)->width;
unsigned char *bp = (unsigned char *)field_buffer(field, 0);
bool result = (width < 0);
Check_CTYPE_Field(result, bp, width, Check_This_Character);
return (result);
}
static FIELDTYPE typeTHIS =
{
_HAS_ARGS | _RESIDENT,
1, /* this is mutable, so we can't be const */
(FIELDTYPE *)0,
(FIELDTYPE *)0,
Make_This_Type,
Copy_This_Type,
Free_This_Type,
INIT_FT_FUNC(Check_This_Field),
INIT_FT_FUNC(Check_This_Character),
INIT_FT_FUNC(NULL),
INIT_FT_FUNC(NULL),
#if NCURSES_INTEROP_FUNCS
Generic_This_Type
#endif
};
FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALPHA = &typeTHIS;
#if NCURSES_INTEROP_FUNCS
/* The next routines are to simplify the use of ncurses from
programming languages with restrictions on interop with C level
constructs (e.g. variable access or va_list + ellipsis constructs)
*/
FORM_EXPORT(FIELDTYPE *)
_nc_TYPE_ALPHA(void)
{
return TYPE_ALPHA;
}
#endif
/* fty_alpha.c ends here */
|
