Theodore Ts'o | b0cacab | 2004-11-30 19:00:19 -0500 | [diff] [blame] | 1 | /* Formatted output to strings, using POSIX/XSI format strings with positions. |
| 2 | Copyright (C) 2003 Free Software Foundation, Inc. |
| 3 | Written by Bruno Haible <bruno@clisp.org>, 2003. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify it |
| 6 | under the terms of the GNU Library General Public License as published |
| 7 | by the Free Software Foundation; either version 2, or (at your option) |
| 8 | any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Library General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Library General Public |
| 16 | License along with this program; if not, write to the Free Software |
| 17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| 18 | USA. */ |
| 19 | |
| 20 | #ifdef HAVE_CONFIG_H |
| 21 | # include <config.h> |
| 22 | #endif |
| 23 | |
| 24 | #ifdef __GNUC__ |
| 25 | # define alloca __builtin_alloca |
| 26 | # define HAVE_ALLOCA 1 |
| 27 | #else |
| 28 | # ifdef _MSC_VER |
| 29 | # include <malloc.h> |
| 30 | # define alloca _alloca |
| 31 | # else |
| 32 | # if defined HAVE_ALLOCA_H || defined _LIBC |
| 33 | # include <alloca.h> |
| 34 | # else |
| 35 | # ifdef _AIX |
| 36 | #pragma alloca |
| 37 | # else |
| 38 | # ifndef alloca |
| 39 | char *alloca (); |
| 40 | # endif |
| 41 | # endif |
| 42 | # endif |
| 43 | # endif |
| 44 | #endif |
| 45 | |
| 46 | #include <stdio.h> |
| 47 | |
| 48 | #if !HAVE_POSIX_PRINTF |
| 49 | |
| 50 | #include <stdlib.h> |
| 51 | #include <string.h> |
| 52 | |
| 53 | /* When building a DLL, we must export some functions. Note that because |
| 54 | the functions are only defined for binary backward compatibility, we |
| 55 | don't need to use __declspec(dllimport) in any case. */ |
| 56 | #if defined _MSC_VER && BUILDING_DLL |
| 57 | # define DLL_EXPORTED __declspec(dllexport) |
| 58 | #else |
| 59 | # define DLL_EXPORTED |
| 60 | #endif |
| 61 | |
| 62 | #define STATIC static |
| 63 | |
| 64 | /* Define auxiliary functions declared in "printf-args.h". */ |
| 65 | #include "printf-args.c" |
| 66 | |
| 67 | /* Define auxiliary functions declared in "printf-parse.h". */ |
| 68 | #include "printf-parse.c" |
| 69 | |
| 70 | /* Define functions declared in "vasnprintf.h". */ |
| 71 | #define vasnprintf libintl_vasnprintf |
| 72 | #include "vasnprintf.c" |
| 73 | #if 0 /* not needed */ |
| 74 | #define asnprintf libintl_asnprintf |
| 75 | #include "asnprintf.c" |
| 76 | #endif |
| 77 | |
| 78 | DLL_EXPORTED |
| 79 | int |
| 80 | libintl_vfprintf (FILE *stream, const char *format, va_list args) |
| 81 | { |
| 82 | if (strchr (format, '$') == NULL) |
| 83 | return vfprintf (stream, format, args); |
| 84 | else |
| 85 | { |
| 86 | size_t length; |
| 87 | char *result = libintl_vasnprintf (NULL, &length, format, args); |
| 88 | int retval = -1; |
| 89 | if (result != NULL) |
| 90 | { |
| 91 | if (fwrite (result, 1, length, stream) == length) |
| 92 | retval = length; |
| 93 | free (result); |
| 94 | } |
| 95 | return retval; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | DLL_EXPORTED |
| 100 | int |
| 101 | libintl_fprintf (FILE *stream, const char *format, ...) |
| 102 | { |
| 103 | va_list args; |
| 104 | int retval; |
| 105 | |
| 106 | va_start (args, format); |
| 107 | retval = libintl_vfprintf (stream, format, args); |
| 108 | va_end (args); |
| 109 | return retval; |
| 110 | } |
| 111 | |
| 112 | DLL_EXPORTED |
| 113 | int |
| 114 | libintl_vprintf (const char *format, va_list args) |
| 115 | { |
| 116 | return libintl_vfprintf (stdout, format, args); |
| 117 | } |
| 118 | |
| 119 | DLL_EXPORTED |
| 120 | int |
| 121 | libintl_printf (const char *format, ...) |
| 122 | { |
| 123 | va_list args; |
| 124 | int retval; |
| 125 | |
| 126 | va_start (args, format); |
| 127 | retval = libintl_vprintf (format, args); |
| 128 | va_end (args); |
| 129 | return retval; |
| 130 | } |
| 131 | |
| 132 | DLL_EXPORTED |
| 133 | int |
| 134 | libintl_vsprintf (char *resultbuf, const char *format, va_list args) |
| 135 | { |
| 136 | if (strchr (format, '$') == NULL) |
| 137 | return vsprintf (resultbuf, format, args); |
| 138 | else |
| 139 | { |
| 140 | size_t length = (size_t) ~0 / (4 * sizeof (char)); |
| 141 | char *result = libintl_vasnprintf (resultbuf, &length, format, args); |
| 142 | if (result != resultbuf) |
| 143 | { |
| 144 | free (result); |
| 145 | return -1; |
| 146 | } |
| 147 | else |
| 148 | return length; |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | DLL_EXPORTED |
| 153 | int |
| 154 | libintl_sprintf (char *resultbuf, const char *format, ...) |
| 155 | { |
| 156 | va_list args; |
| 157 | int retval; |
| 158 | |
| 159 | va_start (args, format); |
| 160 | retval = libintl_vsprintf (resultbuf, format, args); |
| 161 | va_end (args); |
| 162 | return retval; |
| 163 | } |
| 164 | |
| 165 | #if HAVE_SNPRINTF |
| 166 | |
| 167 | # if HAVE_DECL__SNPRINTF |
| 168 | /* Windows. */ |
| 169 | # define system_vsnprintf _vsnprintf |
| 170 | # else |
| 171 | /* Unix. */ |
| 172 | # define system_vsnprintf vsnprintf |
| 173 | # endif |
| 174 | |
| 175 | DLL_EXPORTED |
| 176 | int |
| 177 | libintl_vsnprintf (char *resultbuf, size_t length, const char *format, va_list args) |
| 178 | { |
| 179 | if (strchr (format, '$') == NULL) |
| 180 | return system_vsnprintf (resultbuf, length, format, args); |
| 181 | else |
| 182 | { |
| 183 | size_t maxlength = length; |
| 184 | char *result = libintl_vasnprintf (resultbuf, &length, format, args); |
| 185 | if (result != resultbuf) |
| 186 | { |
| 187 | if (maxlength > 0) |
| 188 | { |
| 189 | if (length < maxlength) |
| 190 | abort (); |
| 191 | memcpy (resultbuf, result, maxlength - 1); |
| 192 | resultbuf[maxlength - 1] = '\0'; |
| 193 | } |
| 194 | free (result); |
| 195 | return -1; |
| 196 | } |
| 197 | else |
| 198 | return length; |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | DLL_EXPORTED |
| 203 | int |
| 204 | libintl_snprintf (char *resultbuf, size_t length, const char *format, ...) |
| 205 | { |
| 206 | va_list args; |
| 207 | int retval; |
| 208 | |
| 209 | va_start (args, format); |
| 210 | retval = libintl_vsnprintf (resultbuf, length, format, args); |
| 211 | va_end (args); |
| 212 | return retval; |
| 213 | } |
| 214 | |
| 215 | #endif |
| 216 | |
| 217 | #if HAVE_ASPRINTF |
| 218 | |
| 219 | DLL_EXPORTED |
| 220 | int |
| 221 | libintl_vasprintf (char **resultp, const char *format, va_list args) |
| 222 | { |
| 223 | size_t length; |
| 224 | char *result = libintl_vasnprintf (NULL, &length, format, args); |
| 225 | if (result == NULL) |
| 226 | return -1; |
| 227 | *resultp = result; |
| 228 | return length; |
| 229 | } |
| 230 | |
| 231 | DLL_EXPORTED |
| 232 | int |
| 233 | libintl_asprintf (char **resultp, const char *format, ...) |
| 234 | { |
| 235 | va_list args; |
| 236 | int retval; |
| 237 | |
| 238 | va_start (args, format); |
| 239 | retval = libintl_vasprintf (resultp, format, args); |
| 240 | va_end (args); |
| 241 | return retval; |
| 242 | } |
| 243 | |
| 244 | #endif |
| 245 | |
| 246 | #if HAVE_FWPRINTF |
| 247 | |
| 248 | #include <wchar.h> |
| 249 | |
| 250 | #define WIDE_CHAR_VERSION 1 |
| 251 | |
| 252 | /* Define auxiliary functions declared in "wprintf-parse.h". */ |
| 253 | #include "printf-parse.c" |
| 254 | |
| 255 | /* Define functions declared in "vasnprintf.h". */ |
| 256 | #define vasnwprintf libintl_vasnwprintf |
| 257 | #include "vasnprintf.c" |
| 258 | #if 0 /* not needed */ |
| 259 | #define asnwprintf libintl_asnwprintf |
| 260 | #include "asnprintf.c" |
| 261 | #endif |
| 262 | |
| 263 | # if HAVE_DECL__SNWPRINTF |
| 264 | /* Windows. */ |
| 265 | # define system_vswprintf _vsnwprintf |
| 266 | # else |
| 267 | /* Unix. */ |
| 268 | # define system_vswprintf vswprintf |
| 269 | # endif |
| 270 | |
| 271 | DLL_EXPORTED |
| 272 | int |
| 273 | libintl_vfwprintf (FILE *stream, const wchar_t *format, va_list args) |
| 274 | { |
| 275 | if (wcschr (format, '$') == NULL) |
| 276 | return vfwprintf (stream, format, args); |
| 277 | else |
| 278 | { |
| 279 | size_t length; |
| 280 | wchar_t *result = libintl_vasnwprintf (NULL, &length, format, args); |
| 281 | int retval = -1; |
| 282 | if (result != NULL) |
| 283 | { |
| 284 | size_t i; |
| 285 | for (i = 0; i < length; i++) |
| 286 | if (fputwc (result[i], stream) == WEOF) |
| 287 | break; |
| 288 | if (i == length) |
| 289 | retval = length; |
| 290 | free (result); |
| 291 | } |
| 292 | return retval; |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | DLL_EXPORTED |
| 297 | int |
| 298 | libintl_fwprintf (FILE *stream, const wchar_t *format, ...) |
| 299 | { |
| 300 | va_list args; |
| 301 | int retval; |
| 302 | |
| 303 | va_start (args, format); |
| 304 | retval = libintl_vfwprintf (stream, format, args); |
| 305 | va_end (args); |
| 306 | return retval; |
| 307 | } |
| 308 | |
| 309 | DLL_EXPORTED |
| 310 | int |
| 311 | libintl_vwprintf (const wchar_t *format, va_list args) |
| 312 | { |
| 313 | return libintl_vfwprintf (stdout, format, args); |
| 314 | } |
| 315 | |
| 316 | DLL_EXPORTED |
| 317 | int |
| 318 | libintl_wprintf (const wchar_t *format, ...) |
| 319 | { |
| 320 | va_list args; |
| 321 | int retval; |
| 322 | |
| 323 | va_start (args, format); |
| 324 | retval = libintl_vwprintf (format, args); |
| 325 | va_end (args); |
| 326 | return retval; |
| 327 | } |
| 328 | |
| 329 | DLL_EXPORTED |
| 330 | int |
| 331 | libintl_vswprintf (wchar_t *resultbuf, size_t length, const wchar_t *format, va_list args) |
| 332 | { |
| 333 | if (wcschr (format, '$') == NULL) |
| 334 | return system_vswprintf (resultbuf, length, format, args); |
| 335 | else |
| 336 | { |
| 337 | size_t maxlength = length; |
| 338 | wchar_t *result = libintl_vasnwprintf (resultbuf, &length, format, args); |
| 339 | if (result != resultbuf) |
| 340 | { |
| 341 | if (maxlength > 0) |
| 342 | { |
| 343 | if (length < maxlength) |
| 344 | abort (); |
| 345 | memcpy (resultbuf, result, (maxlength - 1) * sizeof (wchar_t)); |
| 346 | resultbuf[maxlength - 1] = 0; |
| 347 | } |
| 348 | free (result); |
| 349 | return -1; |
| 350 | } |
| 351 | else |
| 352 | return length; |
| 353 | } |
| 354 | } |
| 355 | |
| 356 | DLL_EXPORTED |
| 357 | int |
| 358 | libintl_swprintf (wchar_t *resultbuf, size_t length, const wchar_t *format, ...) |
| 359 | { |
| 360 | va_list args; |
| 361 | int retval; |
| 362 | |
| 363 | va_start (args, format); |
| 364 | retval = libintl_vswprintf (resultbuf, length, format, args); |
| 365 | va_end (args); |
| 366 | return retval; |
| 367 | } |
| 368 | |
| 369 | #endif |
| 370 | |
| 371 | #endif |