Super User's BSD Cross Reference: /OpenBSD/lib/libform/fty_int.c

 /* $OpenBSD: fty_int.c,v 1.10 2023年10月17日 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 *
* *
***************************************************************************/

#include "form.priv.h"

 MODULE_ID("$Id: fty_int.c,v 1.10 2023年10月17日 09:52:10 nicm Exp $")

#if USE_WIDEC_SUPPORT
#define isDigit(c) (iswdigit((wint_t)(c)) || isdigit(UChar(c)))
#else
#define isDigit(c) isdigit(UChar(c))
#endif

#define thisARG integerARG

 typedef struct
 {
 int precision;
 long low;
 long high;
 }
 thisARG;

 typedef struct
 {
 int precision;
 long low;
 long high;
 }
 integerPARM;

 /*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void *Generic_This_Type( void * arg )
|
| Description : Allocate structure for integer type argument.
|
| Return Values : Pointer to argument structure or NULL on error
+--------------------------------------------------------------------------*/
 static void *
 Generic_This_Type(void *arg)
{
 thisARG *argp = (thisARG *)0;
 thisARG *param = (thisARG *)arg;

 if (param)
 {
 argp = typeMalloc(thisARG, 1);

 if (argp)
 {
 T((T_CREATE("thisARG %p"), (void *)argp));
 *argp = *param;
 }
 }
 return (void *)argp;
}

 /*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void *Make_This_Type( va_list * ap )
|
| Description : Allocate structure for integer type argument.
|
| Return Values : Pointer to argument structure or NULL on error
+--------------------------------------------------------------------------*/
 static void *
 Make_This_Type(va_list *ap)
{
 thisARG arg;

 arg.precision = va_arg(*ap, int);
 arg.low = va_arg(*ap, long);
 arg.high = va_arg(*ap, long);

 return Generic_This_Type((void *)&arg);
}

 /*---------------------------------------------------------------------------
| Facility : libnform
| Function : static void *Copy_This_Type(const void * argp)
|
| Description : Copy structure for integer 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 = (thisARG *)0;

 if (argp)
 {
 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 integer type argument.
|
| Return Values : -
+--------------------------------------------------------------------------*/
 static void
 Free_This_Type(void *argp)
{
 if (argp)
 free(argp);
}

 /*---------------------------------------------------------------------------
| Facility : libnform
| Function : static bool Check_This_Field(
| FIELD * field,
| const void * argp)
|
| Description : Validate buffer content to be a valid integer value
|
| Return Values : TRUE - field is valid
| FALSE - field is invalid
+--------------------------------------------------------------------------*/
 static bool
 Check_This_Field(FIELD *field, const void *argp)
{
 const thisARG *argi = (const thisARG *)argp;
 long low = argi->low;
 long high = argi->high;
 int prec = argi->precision;
 unsigned char *bp = (unsigned char *)field_buffer(field, 0);
 char *s = (char *)bp;
 bool result = FALSE;

 while (*bp == ' ')
 bp++;
 if (*bp)
 {
 if (*bp == '-')
 bp++;
#if USE_WIDEC_SUPPORT
 if (*bp)
 {
 int len;
 wchar_t *list = _nc_Widen_String((char *)bp, &len);

 if (list != 0)
 {
 bool blank = FALSE;
 int n;

 result = TRUE;
 for (n = 0; n < len; ++n)
 {
 if (blank)
 {
 if (list[n] != ' ')
 {
 result = FALSE;
 break;
 }
 }
 else if (list[n] == ' ')
 {
 blank = TRUE;
 }
 else if (!isDigit(list[n]))
 {
 result = FALSE;
 break;
 }
 }
 free(list);
 }
 }
#else
 while (*bp)
 {
 if (!isdigit(UChar(*bp)))
 break;
 bp++;
 }
 while (*bp && *bp == ' ')
 bp++;
 result = (*bp == '0円');
#endif
 if (result)
 {
 long val = atol(s);

 if (low < high)
 {
 if (val < low || val > high)
 result = FALSE;
 }
 if (result)
 {
 char buf[100];

 _nc_SPRINTF(buf, _nc_SLIMIT(sizeof(buf))
 "%.*ld", (prec > 0 ? prec : 0), val);
 set_field_buffer(field, 0, buf);
 }
 }
 }
 return (result);
}

 /*---------------------------------------------------------------------------
| Facility : libnform
| Function : static bool Check_This_Character(
| int c,
| const void * argp)
|
| Description : Check a character for the integer type.
|
| Return Values : TRUE - character is valid
| FALSE - character is invalid
+--------------------------------------------------------------------------*/
 static bool
 Check_This_Character(int c, const void *argp GCC_UNUSED)
{
 return ((isDigit(UChar(c)) || (c == '-')) ? TRUE : FALSE);
}

 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_INTEGER = &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_INTEGER(void)
{
 return TYPE_INTEGER;
}
#endif

 /* fty_int.c ends here */
 

Indexes created Mon Nov 24 03:53:32 PST 2025