1 /**************************************************************************** 2 * Copyright (c) 1998-2006,2007 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 37 MODULE_ID("$Id: fty_alpha.c,v 1.23 2007/10/13 19:32:09 tom Exp $") 38 39 #define thisARG alphaARG 40 41 typedef struct 42 { 43 int width; 44 } 45 thisARG; 46 47 /*--------------------------------------------------------------------------- 48 | Facility : libnform 49 | Function : static void *Make_This_Type(va_list *ap) 50 | 51 | Description : Allocate structure for alpha type argument. 52 | 53 | Return Values : Pointer to argument structure or NULL on error 54 +--------------------------------------------------------------------------*/ 55 static void * 56 Make_This_Type(va_list *ap) 57 { 58 thisARG *argp = typeMalloc(thisARG, 1); 59 60 if (argp) 61 { 62 T((T_CREATE("thisARG %p"), argp)); 63 argp->width = va_arg(*ap, int); 64 } 65 66 return ((void *)argp); 67 } 68 69 /*--------------------------------------------------------------------------- 70 | Facility : libnform 71 | Function : static void *Copy_This_Type(const void * argp) 72 | 73 | Description : Copy structure for alpha type argument. 74 | 75 | Return Values : Pointer to argument structure or NULL on error. 76 +--------------------------------------------------------------------------*/ 77 static void * 78 Copy_This_Type(const void *argp) 79 { 80 const thisARG *ap = (const thisARG *)argp; 81 thisARG *result = typeMalloc(thisARG, 1); 82 83 if (result) 84 { 85 T((T_CREATE("thisARG %p"), result)); 86 *result = *ap; 87 } 88 89 return ((void *)result); 90 } 91 92 /*--------------------------------------------------------------------------- 93 | Facility : libnform 94 | Function : static void Free_This_Type(void *argp) 95 | 96 | Description : Free structure for alpha type argument. 97 | 98 | Return Values : - 99 +--------------------------------------------------------------------------*/ 100 static void 101 Free_This_Type(void *argp) 102 { 103 if (argp) 104 free(argp); 105 } 106 107 /*--------------------------------------------------------------------------- 108 | Facility : libnform 109 | Function : static bool Check_This_Character( 110 | int c, 111 | const void *argp) 112 | 113 | Description : Check a character for the alpha type. 114 | 115 | Return Values : TRUE - character is valid 116 | FALSE - character is invalid 117 +--------------------------------------------------------------------------*/ 118 static bool 119 Check_This_Character(int c, const void *argp GCC_UNUSED) 120 { 121 #if USE_WIDEC_SUPPORT 122 if (iswalpha((wint_t) c)) 123 return TRUE; 124 #endif 125 return (isalpha(UChar(c)) ? TRUE : FALSE); 126 } 127 128 /*--------------------------------------------------------------------------- 129 | Facility : libnform 130 | Function : static bool Check_This_Field( 131 | FIELD *field, 132 | const void *argp) 133 | 134 | Description : Validate buffer content to be a valid alpha value 135 | 136 | Return Values : TRUE - field is valid 137 | FALSE - field is invalid 138 +--------------------------------------------------------------------------*/ 139 static bool 140 Check_This_Field(FIELD *field, const void *argp) 141 { 142 int width = ((const thisARG *)argp)->width; 143 unsigned char *bp = (unsigned char *)field_buffer(field, 0); 144 bool result = (width < 0); 145 146 Check_CTYPE_Field(result, bp, width, Check_This_Character); 147 return (result); 148 } 149 150 static FIELDTYPE typeTHIS = 151 { 152 _HAS_ARGS | _RESIDENT, 153 1, /* this is mutable, so we can't be const */ 154 (FIELDTYPE *)0, 155 (FIELDTYPE *)0, 156 Make_This_Type, 157 Copy_This_Type, 158 Free_This_Type, 159 Check_This_Field, 160 Check_This_Character, 161 NULL, 162 NULL 163 }; 164 165 NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_ALPHA = &typeTHIS; 166 167 /* fty_alpha.c ends here */ 168