204 lines
7.0 KiB
C
204 lines
7.0 KiB
C
/****************************************************************************
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* Copyright 2020 Thomas E. Dickey *
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* Copyright 1998-2009,2010 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/***************************************************************************
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* *
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* Author : Juergen Pfeifer *
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* *
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***************************************************************************/
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#include "form.priv.h"
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MODULE_ID("$Id: fty_alpha.c,v 1.31 2020/12/12 01:15:37 tom Exp $")
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#define thisARG alphaARG
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typedef struct
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{
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int width;
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}
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thisARG;
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static void *Generic_This_Type(va_list *ap)
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| Description : Allocate structure for alpha type argument.
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| Return Values : Pointer to argument structure or NULL on error
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+--------------------------------------------------------------------------*/
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static void *
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Generic_This_Type(void *arg)
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{
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thisARG *argp = (thisARG *)0;
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if (arg)
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{
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argp = typeMalloc(thisARG, 1);
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if (argp)
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{
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T((T_CREATE("thisARG %p"), (void *)argp));
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argp->width = *((int *)arg);
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}
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}
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return ((void *)argp);
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static void *Make_This_Type(va_list *ap)
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| Description : Allocate structure for alpha type argument.
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| Return Values : Pointer to argument structure or NULL on error
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+--------------------------------------------------------------------------*/
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static void *
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Make_This_Type(va_list *ap)
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{
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int w = va_arg(*ap, int);
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return Generic_This_Type((void *)&w);
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static void *Copy_This_Type(const void * argp)
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| Description : Copy structure for alpha type argument.
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| Return Values : Pointer to argument structure or NULL on error.
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+--------------------------------------------------------------------------*/
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static void *
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Copy_This_Type(const void *argp)
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{
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const thisARG *ap = (const thisARG *)argp;
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thisARG *result = typeMalloc(thisARG, 1);
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if (result)
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{
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T((T_CREATE("thisARG %p"), (void *)result));
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*result = *ap;
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}
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return ((void *)result);
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static void Free_This_Type(void *argp)
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| Description : Free structure for alpha type argument.
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| Return Values : -
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+--------------------------------------------------------------------------*/
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static void
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Free_This_Type(void *argp)
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{
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if (argp)
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free(argp);
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static bool Check_This_Character(
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| int c,
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| const void *argp)
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| Description : Check a character for the alpha type.
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| Return Values : TRUE - character is valid
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| FALSE - character is invalid
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+--------------------------------------------------------------------------*/
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static bool
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Check_This_Character(int c, const void *argp GCC_UNUSED)
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{
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#if USE_WIDEC_SUPPORT
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if (iswalpha((wint_t)c))
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return TRUE;
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#endif
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return (isalpha(UChar(c)) ? TRUE : FALSE);
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static bool Check_This_Field(
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| FIELD *field,
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| const void *argp)
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| Description : Validate buffer content to be a valid alpha value
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| Return Values : TRUE - field is valid
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| FALSE - field is invalid
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+--------------------------------------------------------------------------*/
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static bool
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Check_This_Field(FIELD *field, const void *argp)
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{
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int width = ((const thisARG *)argp)->width;
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unsigned char *bp = (unsigned char *)field_buffer(field, 0);
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bool result = (width < 0);
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Check_CTYPE_Field(result, bp, width, Check_This_Character);
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return (result);
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}
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static FIELDTYPE typeTHIS =
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{
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_HAS_ARGS | _RESIDENT,
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1, /* this is mutable, so we can't be const */
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(FIELDTYPE *)0,
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(FIELDTYPE *)0,
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Make_This_Type,
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Copy_This_Type,
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Free_This_Type,
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INIT_FT_FUNC(Check_This_Field),
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INIT_FT_FUNC(Check_This_Character),
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INIT_FT_FUNC(NULL),
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INIT_FT_FUNC(NULL),
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#if NCURSES_INTEROP_FUNCS
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Generic_This_Type
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#endif
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};
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FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALPHA = &typeTHIS;
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#if NCURSES_INTEROP_FUNCS
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/* The next routines are to simplify the use of ncurses from
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programming languages with restrictions on interop with C level
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constructs (e.g. variable access or va_list + ellipsis constructs)
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*/
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FORM_EXPORT(FIELDTYPE *)
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_nc_TYPE_ALPHA(void)
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{
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return TYPE_ALPHA;
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}
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#endif
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/* fty_alpha.c ends here */
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