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| Current File : //usr/src/contrib/ncurses/form/fty_alnum.c |
/****************************************************************************
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* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
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* furnished to do so, subject to the following conditions: *
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* The above copyright notice and this permission notice shall be included *
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****************************************************************************/
/***************************************************************************
* *
* Author : Juergen Pfeifer *
* *
***************************************************************************/
#include "form.priv.h"
MODULE_ID("$Id: fty_alnum.c,v 1.21 2007/10/13 19:31:52 tom Exp $")
#define thisARG alnumARG
typedef struct
{
int width;
}
thisARG;
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void *Make_This_Type(va_list *ap)
|
| Description : Allocate structure for alphanumeric type argument.
|
| Return Values : Pointer to argument structure or NULL on error
+--------------------------------------------------------------------------*/
static void *
Make_This_Type(va_list *ap)
{
thisARG *argp = typeMalloc(thisARG, 1);
if (argp)
{
T((T_CREATE("thisARG %p"), argp));
argp->width = va_arg(*ap, int);
}
return ((void *)argp);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void *Copy_ThisType(const void *argp)
|
| Description : Copy structure for alphanumeric 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"), result));
*result = *ap;
}
return ((void *)result);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void Free_This_Type(void *argp)
|
| Description : Free structure for alphanumeric 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 alphanumeric 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 (iswalnum((wint_t) c))
return TRUE;
#endif
return (isalnum(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 alphanumeric 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,
Check_This_Field,
Check_This_Character,
NULL,
NULL
};
NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_ALNUM = &typeTHIS;
/* fty_alnum.c ends here */