fty_int.c revision 272461
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 37MODULE_ID("$Id: fty_int.c,v 1.22 2007/10/13 19:32:40 tom Exp $") 38 39#if USE_WIDEC_SUPPORT 40#define isDigit(c) (iswdigit((wint_t)(c)) || isdigit(UChar(c))) 41#else 42#define isDigit(c) isdigit(UChar(c)) 43#endif 44 45#define thisARG integerARG 46 47typedef struct 48 { 49 int precision; 50 long low; 51 long high; 52 } 53thisARG; 54 55/*--------------------------------------------------------------------------- 56| Facility : libnform 57| Function : static void *Make_This_Type( va_list * ap ) 58| 59| Description : Allocate structure for integer type argument. 60| 61| Return Values : Pointer to argument structure or NULL on error 62+--------------------------------------------------------------------------*/ 63static void * 64Make_This_Type(va_list *ap) 65{ 66 thisARG *argp = typeMalloc(thisARG, 1); 67 68 if (argp) 69 { 70 T((T_CREATE("thisARG %p"), argp)); 71 argp->precision = va_arg(*ap, int); 72 argp->low = va_arg(*ap, long); 73 argp->high = va_arg(*ap, long); 74 } 75 return (void *)argp; 76} 77 78/*--------------------------------------------------------------------------- 79| Facility : libnform 80| Function : static void *Copy_This_Type(const void * argp) 81| 82| Description : Copy structure for integer type argument. 83| 84| Return Values : Pointer to argument structure or NULL on error. 85+--------------------------------------------------------------------------*/ 86static void * 87Copy_This_Type(const void *argp) 88{ 89 const thisARG *ap = (const thisARG *)argp; 90 thisARG *result = (thisARG *) 0; 91 92 if (argp) 93 { 94 result = typeMalloc(thisARG, 1); 95 if (result) 96 { 97 T((T_CREATE("thisARG %p"), result)); 98 *result = *ap; 99 } 100 } 101 return (void *)result; 102} 103 104/*--------------------------------------------------------------------------- 105| Facility : libnform 106| Function : static void Free_This_Type(void * argp) 107| 108| Description : Free structure for integer type argument. 109| 110| Return Values : - 111+--------------------------------------------------------------------------*/ 112static void 113Free_This_Type(void *argp) 114{ 115 if (argp) 116 free(argp); 117} 118 119/*--------------------------------------------------------------------------- 120| Facility : libnform 121| Function : static bool Check_This_Field( 122| FIELD * field, 123| const void * argp) 124| 125| Description : Validate buffer content to be a valid integer value 126| 127| Return Values : TRUE - field is valid 128| FALSE - field is invalid 129+--------------------------------------------------------------------------*/ 130static bool 131Check_This_Field(FIELD *field, const void *argp) 132{ 133 const thisARG *argi = (const thisARG *)argp; 134 long low = argi->low; 135 long high = argi->high; 136 int prec = argi->precision; 137 unsigned char *bp = (unsigned char *)field_buffer(field, 0); 138 char *s = (char *)bp; 139 long val; 140 char buf[100]; 141 bool result = FALSE; 142 143 while (*bp && *bp == ' ') 144 bp++; 145 if (*bp) 146 { 147 if (*bp == '-') 148 bp++; 149#if USE_WIDEC_SUPPORT 150 if (*bp) 151 { 152 bool blank = FALSE; 153 int len; 154 int n; 155 wchar_t *list = _nc_Widen_String((char *)bp, &len); 156 157 if (list != 0) 158 { 159 result = TRUE; 160 for (n = 0; n < len; ++n) 161 { 162 if (blank) 163 { 164 if (list[n] != ' ') 165 { 166 result = FALSE; 167 break; 168 } 169 } 170 else if (list[n] == ' ') 171 { 172 blank = TRUE; 173 } 174 else if (!isDigit(list[n])) 175 { 176 result = FALSE; 177 break; 178 } 179 } 180 free(list); 181 } 182 } 183#else 184 while (*bp) 185 { 186 if (!isdigit(UChar(*bp))) 187 break; 188 bp++; 189 } 190 while (*bp && *bp == ' ') 191 bp++; 192 result = (*bp == '\0'); 193#endif 194 if (result) 195 { 196 val = atol(s); 197 if (low < high) 198 { 199 if (val < low || val > high) 200 result = FALSE; 201 } 202 if (result) 203 { 204 sprintf(buf, "%.*ld", (prec > 0 ? prec : 0), val); 205 set_field_buffer(field, 0, buf); 206 } 207 } 208 } 209 return (result); 210} 211 212/*--------------------------------------------------------------------------- 213| Facility : libnform 214| Function : static bool Check_This_Character( 215| int c, 216| const void * argp) 217| 218| Description : Check a character for the integer type. 219| 220| Return Values : TRUE - character is valid 221| FALSE - character is invalid 222+--------------------------------------------------------------------------*/ 223static bool 224Check_This_Character(int c, const void *argp GCC_UNUSED) 225{ 226 return ((isDigit(UChar(c)) || (c == '-')) ? TRUE : FALSE); 227} 228 229static FIELDTYPE typeTHIS = 230{ 231 _HAS_ARGS | _RESIDENT, 232 1, /* this is mutable, so we can't be const */ 233 (FIELDTYPE *)0, 234 (FIELDTYPE *)0, 235 Make_This_Type, 236 Copy_This_Type, 237 Free_This_Type, 238 Check_This_Field, 239 Check_This_Character, 240 NULL, 241 NULL 242}; 243 244NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_INTEGER = &typeTHIS; 245 246/* fty_int.c ends here */ 247