1 /* $OpenBSD: fty_alpha.c,v 1.9 2015/01/23 22:48:51 krw Exp $ */ 2 /**************************************************************************** 3 * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /*************************************************************************** 31 * * 32 * Author : Juergen Pfeifer * 33 * * 34 ***************************************************************************/ 35 36 #include "form.priv.h" 37 38 MODULE_ID("$Id: fty_alpha.c,v 1.9 2015/01/23 22:48:51 krw Exp $") 39 40 #define thisARG alphaARG 41 42 typedef struct 43 { 44 int width; 45 } 46 thisARG; 47 48 /*--------------------------------------------------------------------------- 49 | Facility : libnform 50 | Function : static void *Make_This_Type(va_list *ap) 51 | 52 | Description : Allocate structure for alpha type argument. 53 | 54 | Return Values : Pointer to argument structure or NULL on error 55 +--------------------------------------------------------------------------*/ 56 static void * 57 Make_This_Type(va_list *ap) 58 { 59 thisARG *argp = typeMalloc(thisARG, 1); 60 61 if (argp) 62 { 63 T((T_CREATE("thisARG %p"), argp)); 64 argp->width = va_arg(*ap, int); 65 } 66 67 return ((void *)argp); 68 } 69 70 /*--------------------------------------------------------------------------- 71 | Facility : libnform 72 | Function : static void *Copy_This_Type(const void * argp) 73 | 74 | Description : Copy structure for alpha type argument. 75 | 76 | Return Values : Pointer to argument structure or NULL on error. 77 +--------------------------------------------------------------------------*/ 78 static void * 79 Copy_This_Type(const void *argp) 80 { 81 const thisARG *ap = (const thisARG *)argp; 82 thisARG *result = typeMalloc(thisARG, 1); 83 84 if (result) 85 { 86 T((T_CREATE("thisARG %p"), result)); 87 *result = *ap; 88 } 89 90 return ((void *)result); 91 } 92 93 /*--------------------------------------------------------------------------- 94 | Facility : libnform 95 | Function : static void Free_This_Type(void *argp) 96 | 97 | Description : Free structure for alpha type argument. 98 | 99 | Return Values : - 100 +--------------------------------------------------------------------------*/ 101 static void 102 Free_This_Type(void *argp) 103 { 104 if (argp) 105 free(argp); 106 } 107 108 /*--------------------------------------------------------------------------- 109 | Facility : libnform 110 | Function : static bool Check_This_Character( 111 | int c, 112 | const void *argp) 113 | 114 | Description : Check a character for the alpha type. 115 | 116 | Return Values : TRUE - character is valid 117 | FALSE - character is invalid 118 +--------------------------------------------------------------------------*/ 119 static bool 120 Check_This_Character(int c, const void *argp GCC_UNUSED) 121 { 122 #if USE_WIDEC_SUPPORT 123 if (iswalpha((wint_t) c)) 124 return TRUE; 125 #endif 126 return (isalpha(UChar(c)) ? TRUE : FALSE); 127 } 128 129 /*--------------------------------------------------------------------------- 130 | Facility : libnform 131 | Function : static bool Check_This_Field( 132 | FIELD *field, 133 | const void *argp) 134 | 135 | Description : Validate buffer content to be a valid alpha value 136 | 137 | Return Values : TRUE - field is valid 138 | FALSE - field is invalid 139 +--------------------------------------------------------------------------*/ 140 static bool 141 Check_This_Field(FIELD *field, const void *argp) 142 { 143 int width = ((const thisARG *)argp)->width; 144 unsigned char *bp = (unsigned char *)field_buffer(field, 0); 145 bool result = (width < 0); 146 147 Check_CTYPE_Field(result, bp, width, Check_This_Character); 148 return (result); 149 } 150 151 static FIELDTYPE typeTHIS = 152 { 153 _HAS_ARGS | _RESIDENT, 154 1, /* this is mutable, so we can't be const */ 155 (FIELDTYPE *)0, 156 (FIELDTYPE *)0, 157 Make_This_Type, 158 Copy_This_Type, 159 Free_This_Type, 160 Check_This_Field, 161 Check_This_Character, 162 NULL, 163 NULL 164 }; 165 166 NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_ALPHA = &typeTHIS; 167 168 /* fty_alpha.c ends here */ 169