fty_alnum.c revision 166124
1/**************************************************************************** 2 * Copyright (c) 1998-2005,2006 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29/*************************************************************************** 30* * 31* Author : Juergen Pfeifer * 32* * 33***************************************************************************/ 34 35#include "form.priv.h" 36 37MODULE_ID("$Id: fty_alnum.c,v 1.19 2006/04/22 21:33:05 tom Exp $") 38 39#define thisARG alnumARG 40 41typedef struct 42 { 43 int width; 44 } 45thisARG; 46 47/*--------------------------------------------------------------------------- 48| Facility : libnform 49| Function : static void *Make_This_Type(va_list *ap) 50| 51| Description : Allocate structure for alphanumeric type argument. 52| 53| Return Values : Pointer to argument structure or NULL on error 54+--------------------------------------------------------------------------*/ 55static void * 56Make_This_Type(va_list *ap) 57{ 58 thisARG *argp = (thisARG *) malloc(sizeof(thisARG)); 59 60 if (argp) 61 argp->width = va_arg(*ap, int); 62 63 return ((void *)argp); 64} 65 66/*--------------------------------------------------------------------------- 67| Facility : libnform 68| Function : static void *Copy_ThisType(const void *argp) 69| 70| Description : Copy structure for alphanumeric type argument. 71| 72| Return Values : Pointer to argument structure or NULL on error. 73+--------------------------------------------------------------------------*/ 74static void * 75Copy_This_Type(const void *argp) 76{ 77 const thisARG *ap = (const thisARG *)argp; 78 thisARG *result = (thisARG *) malloc(sizeof(thisARG)); 79 80 if (result) 81 *result = *ap; 82 83 return ((void *)result); 84} 85 86/*--------------------------------------------------------------------------- 87| Facility : libnform 88| Function : static void Free_This_Type(void *argp) 89| 90| Description : Free structure for alphanumeric type argument. 91| 92| Return Values : - 93+--------------------------------------------------------------------------*/ 94static void 95Free_This_Type(void *argp) 96{ 97 if (argp) 98 free(argp); 99} 100 101/*--------------------------------------------------------------------------- 102| Facility : libnform 103| Function : static bool Check_This_Character( 104| int c, 105| const void *argp) 106| 107| Description : Check a character for the alphanumeric type. 108| 109| Return Values : TRUE - character is valid 110| FALSE - character is invalid 111+--------------------------------------------------------------------------*/ 112static bool 113Check_This_Character(int c, const void *argp GCC_UNUSED) 114{ 115#if USE_WIDEC_SUPPORT 116 if (iswalnum((wint_t) c)) 117 return TRUE; 118#endif 119 return (isalnum(UChar(c)) ? TRUE : FALSE); 120} 121 122/*--------------------------------------------------------------------------- 123| Facility : libnform 124| Function : static bool Check_This_Field( 125| FIELD *field, 126| const void *argp) 127| 128| Description : Validate buffer content to be a valid alphanumeric value 129| 130| Return Values : TRUE - field is valid 131| FALSE - field is invalid 132+--------------------------------------------------------------------------*/ 133static bool 134Check_This_Field(FIELD *field, const void *argp) 135{ 136 int width = ((const thisARG *)argp)->width; 137 unsigned char *bp = (unsigned char *)field_buffer(field, 0); 138 bool result = (width < 0); 139 140 Check_CTYPE_Field(result, bp, width, Check_This_Character); 141 return (result); 142} 143 144static FIELDTYPE typeTHIS = 145{ 146 _HAS_ARGS | _RESIDENT, 147 1, /* this is mutable, so we can't be const */ 148 (FIELDTYPE *)0, 149 (FIELDTYPE *)0, 150 Make_This_Type, 151 Copy_This_Type, 152 Free_This_Type, 153 Check_This_Field, 154 Check_This_Character, 155 NULL, 156 NULL 157}; 158 159NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_ALNUM = &typeTHIS; 160 161/* fty_alnum.c ends here */ 162