+/****************************************************************************
+ * Copyright 2019-2020,2021 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. *
+ ****************************************************************************/
-/*
- * THIS CODE IS SPECIFICALLY EXEMPTED FROM THE NCURSES PACKAGE COPYRIGHT.
- * You may freely copy it for use as a template for your own field types.
- * If you develop a field type that might be of general use, please send
- * it back to the ncurses maintainers for inclusion in the next version.
- */
/***************************************************************************
* *
-* Author : Juergen Pfeifer, Juergen.Pfeifer@T-Online.de *
+* Author : Juergen Pfeifer *
* *
***************************************************************************/
#include "form.priv.h"
-MODULE_ID("$Id: fty_num.c,v 1.9 1997/04/19 17:26:38 juergen Exp $")
+MODULE_ID("$Id: fty_num.c,v 1.37 2021/03/27 23:49:58 tom Exp $")
#if HAVE_LOCALE_H
#include <locale.h>
#endif
-typedef struct {
- int precision;
- double low;
- double high;
- struct lconv* L;
-} numericARG;
+#if HAVE_LOCALE_H && HAVE_LOCALECONV
+#define isDecimalPoint(c) ((c) == ((L && L->decimal_point) ? *(L->decimal_point) : '.'))
+#else
+#define isDecimalPoint(c) ((c) == '.')
+#endif
+
+#if USE_WIDEC_SUPPORT
+#define isDigit(c) (iswdigit((wint_t)(c)) || isdigit(UChar(c)))
+#else
+#define isDigit(c) isdigit(UChar(c))
+#endif
+
+#define thisARG numericARG
+
+typedef struct
+ {
+ int precision;
+ double low;
+ double high;
+ struct lconv *L;
+ }
+thisARG;
+
+typedef struct
+ {
+ int precision;
+ double low;
+ double high;
+ }
+thisPARM;
/*---------------------------------------------------------------------------
-| Facility : libnform
-| Function : static void *Make_Numeric_Type(va_list * ap)
-|
+| Facility : libnform
+| Function : static void *Generic_This_Type(void * arg)
+|
| Description : Allocate structure for numeric type argument.
|
| Return Values : Pointer to argument structure or NULL on error
+--------------------------------------------------------------------------*/
-static void *Make_Numeric_Type(va_list * ap)
+static void *
+Generic_This_Type(void *arg)
{
- numericARG *argn = (numericARG *)malloc(sizeof(numericARG));
+ thisARG *argn = (thisARG *)0;
+ thisPARM *args = (thisPARM *)arg;
- if (argn)
+ if (args)
{
- argn->precision = va_arg(*ap,int);
- argn->low = va_arg(*ap,double);
- argn->high = va_arg(*ap,double);
-#if HAVE_LOCALE_H
- argn->L = localeconv();
+ argn = typeMalloc(thisARG, 1);
+
+ if (argn)
+ {
+ T((T_CREATE("thisARG %p"), (void *)argn));
+ argn->precision = args->precision;
+ argn->low = args->low;
+ argn->high = args->high;
+
+#if HAVE_LOCALE_H && HAVE_LOCALECONV
+ argn->L = localeconv();
#else
- argn->L = NULL;
+ argn->L = NULL;
#endif
+ }
}
return (void *)argn;
}
/*---------------------------------------------------------------------------
-| Facility : libnform
-| Function : static void *Copy_Numeric_Type(const void * argp)
-|
-| Description : Copy structure for numeric type argument.
+| Facility : libnform
+| Function : static void *Make_This_Type(va_list * ap)
+|
+| Description : Allocate structure for numeric type argument.
+|
+| Return Values : Pointer to argument structure or NULL on error
++--------------------------------------------------------------------------*/
+static void *
+Make_This_Type(va_list *ap)
+{
+ thisPARM arg;
+
+ arg.precision = va_arg(*ap, int);
+ arg.low = va_arg(*ap, double);
+ arg.high = va_arg(*ap, double);
+
+ return Generic_This_Type((void *)&arg);
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnform
+| Function : static void *Copy_This_Type(const void * argp)
+|
+| Description : Copy structure for numeric type argument.
|
| Return Values : Pointer to argument structure or NULL on error.
+--------------------------------------------------------------------------*/
-static void *Copy_Numeric_Type(const void * argp)
+static void *
+Copy_This_Type(const void *argp)
{
- const numericARG *ap = (const numericARG *)argp;
- numericARG *new = (numericARG *)0;
+ const thisARG *ap = (const thisARG *)argp;
+ thisARG *result = (thisARG *)0;
if (argp)
{
- new = (numericARG *)malloc(sizeof(numericARG));
- if (new)
- *new = *ap;
+ result = typeMalloc(thisARG, 1);
+
+ if (result)
+ {
+ T((T_CREATE("thisARG %p"), (void *)result));
+ *result = *ap;
+ }
}
- return (void *)new;
+ return (void *)result;
}
/*---------------------------------------------------------------------------
-| Facility : libnform
-| Function : static void Free_Numeric_Type(void * argp)
-|
+| Facility : libnform
+| Function : static void Free_This_Type(void * argp)
+|
| Description : Free structure for numeric type argument.
|
| Return Values : -
+--------------------------------------------------------------------------*/
-static void Free_Numeric_Type(void * argp)
+static void
+Free_This_Type(void *argp)
{
- if (argp)
+ if (argp)
free(argp);
}
/*---------------------------------------------------------------------------
-| Facility : libnform
-| Function : static bool Check_Numeric_Field(FIELD * field,
-| const void * argp)
-|
+| Facility : libnform
+| Function : static bool Check_This_Field(FIELD * field,
+| const void * argp)
+|
| Description : Validate buffer content to be a valid numeric value
|
| Return Values : TRUE - field is valid
| FALSE - field is invalid
+--------------------------------------------------------------------------*/
-static bool Check_Numeric_Field(FIELD * field, const void * argp)
+static bool
+Check_This_Field(FIELD *field, const void *argp)
{
- const numericARG *argn = (const numericARG *)argp;
- double low = argn->low;
- double high = argn->high;
- int prec = argn->precision;
- unsigned char *bp = (unsigned char *)field_buffer(field,0);
- char *s = (char *)bp;
- double val = 0.0;
- struct lconv* L = argn->L;
- char buf[64];
-
- while(*bp && *bp==' ') bp++;
+ const thisARG *argn = (const thisARG *)argp;
+ double low = argn->low;
+ double high = argn->high;
+ int prec = argn->precision;
+ unsigned char *bp = (unsigned char *)field_buffer(field, 0);
+ char *s = (char *)bp;
+ struct lconv *L = argn->L;
+ bool result = FALSE;
+
+ while (*bp == ' ')
+ bp++;
if (*bp)
{
- if (*bp=='-' || *bp=='+')
+ if (*bp == '-' || *bp == '+')
bp++;
- while(*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 state = 0;
+ 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 (isDecimalPoint(list[n]))
+ {
+ if (++state > 1)
+ {
+ result = FALSE;
+ break;
+ }
+ }
+ else if (!isDigit(list[n]))
+ {
+ result = FALSE;
+ break;
+ }
+ }
+ free(list);
+ }
+ }
+#else
+ while (*bp)
{
- if (!isdigit(*bp)) break;
+ if (!isdigit(UChar(*bp)))
+ break;
bp++;
}
- if (*bp==(
-#if HAVE_LOCALE_H
- (L && L->decimal_point) ? *(L->decimal_point) :
-#endif
- '.'))
+ if (isDecimalPoint(*bp))
{
bp++;
- while(*bp)
+ while (*bp)
{
- if (!isdigit(*bp)) break;
+ if (!isdigit(UChar(*bp)))
+ break;
bp++;
}
}
- while(*bp && *bp==' ') bp++;
- if (*bp=='\0')
+ while (*bp && *bp == ' ')
+ bp++;
+ result = (*bp == '\0');
+#endif
+ if (result)
{
- val = atof(s);
- if (low<high)
+ double val = atof(s);
+
+ if (low < high)
{
- if (val<low || val>high) return FALSE;
+ if (val < low || val > high)
+ result = FALSE;
+ }
+ if (result)
+ {
+ char buf[64];
+
+ _nc_SPRINTF(buf, _nc_SLIMIT(sizeof(buf))
+ "%.*f", (prec > 0 ? prec : 0), val);
+ set_field_buffer(field, 0, buf);
}
- sprintf(buf,"%.*f",(prec>0?prec:0),val);
- set_field_buffer(field,0,buf);
- return TRUE;
}
}
- return FALSE;
+ return (result);
}
/*---------------------------------------------------------------------------
-| Facility : libnform
-| Function : static bool Check_Numeric_Character(
+| Facility : libnform
+| Function : static bool Check_This_Character(
| int c,
| const void * argp)
-|
+|
| Description : Check a character for the numeric type.
|
| Return Values : TRUE - character is valid
| FALSE - character is invalid
+--------------------------------------------------------------------------*/
-static bool Check_Numeric_Character(int c, const void * argp)
+static bool
+Check_This_Character(int c, const void *argp)
{
- const numericARG *argn = (const numericARG *)argp;
- struct lconv* L = argn->L;
-
- return (isdigit(c) ||
- c == '+' ||
- c == '-' ||
- c == (
-#ifdef HAVE_LOCALE_H
- (L && L->decimal_point) ? *(L->decimal_point) :
-#endif
- '.')
- ) ? TRUE : FALSE;
+ const thisARG *argn = (const thisARG *)argp;
+ struct lconv *L = argn->L;
+
+ return ((isDigit(c) ||
+ c == '+' ||
+ c == '-' ||
+ isDecimalPoint(c))
+ ? TRUE
+ : FALSE);
}
-static FIELDTYPE typeNUMERIC = {
+static FIELDTYPE typeTHIS =
+{
_HAS_ARGS | _RESIDENT,
- 1, /* this is mutable, so we can't be const */
+ 1, /* this is mutable, so we can't be const */
(FIELDTYPE *)0,
(FIELDTYPE *)0,
- Make_Numeric_Type,
- Copy_Numeric_Type,
- Free_Numeric_Type,
- Check_Numeric_Field,
- Check_Numeric_Character,
- NULL,
- NULL
+ 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
};
-FIELDTYPE* TYPE_NUMERIC = &typeNUMERIC;
+FORM_EXPORT_VAR(FIELDTYPE *) TYPE_NUMERIC = &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_NUMERIC(void)
+{
+ return TYPE_NUMERIC;
+}
+#endif
/* fty_num.c ends here */
projects / ncurses.git / blobdiff