Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
| 2 | Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The |
| 3 | Netherlands. |
| 4 | |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
| 9 | provided that the above copyright notice appear in all copies and that |
| 10 | both that copyright notice and this permission notice appear in |
| 11 | supporting documentation, and that the names of Stichting Mathematisch |
| 12 | Centrum or CWI not be used in advertising or publicity pertaining to |
| 13 | distribution of the software without specific, written prior permission. |
| 14 | |
| 15 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| 16 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 17 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
| 18 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 19 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 20 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 21 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 22 | |
| 23 | ******************************************************************/ |
| 24 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 25 | /* File object implementation */ |
| 26 | |
Guido van Rossum | dd5c7be | 1990-10-26 14:58:11 +0000 | [diff] [blame] | 27 | /* XXX This should become a built-in module 'io'. It should support more |
| 28 | functionality, better exception handling for invalid calls, etc. |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 29 | (Especially reading on a write-only file or vice versa!) |
Guido van Rossum | dd5c7be | 1990-10-26 14:58:11 +0000 | [diff] [blame] | 30 | It should also cooperate with posix to support popen(), which should |
| 31 | share most code but have a special close function. */ |
| 32 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 33 | #include "allobjects.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 34 | |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 35 | #define BUF(v) GETSTRINGVALUE((stringobject *)v) |
| 36 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 37 | #include "errno.h" |
| 38 | #ifndef errno |
| 39 | extern int errno; |
| 40 | #endif |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 41 | |
| 42 | typedef struct { |
| 43 | OB_HEAD |
| 44 | FILE *f_fp; |
| 45 | object *f_name; |
| 46 | object *f_mode; |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame^] | 47 | int f_softspace; /* Flag used by 'print' command */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 48 | } fileobject; |
| 49 | |
| 50 | FILE * |
| 51 | getfilefile(f) |
| 52 | object *f; |
| 53 | { |
| 54 | if (!is_fileobject(f)) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 55 | err_badcall(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 56 | return NULL; |
| 57 | } |
| 58 | return ((fileobject *)f)->f_fp; |
| 59 | } |
| 60 | |
| 61 | object * |
| 62 | newopenfileobject(fp, name, mode) |
| 63 | FILE *fp; |
| 64 | char *name; |
| 65 | char *mode; |
| 66 | { |
| 67 | fileobject *f = NEWOBJ(fileobject, &Filetype); |
| 68 | if (f == NULL) |
| 69 | return NULL; |
| 70 | f->f_fp = NULL; |
| 71 | f->f_name = newstringobject(name); |
| 72 | f->f_mode = newstringobject(mode); |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame^] | 73 | f->f_softspace = 0; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 74 | if (f->f_name == NULL || f->f_mode == NULL) { |
| 75 | DECREF(f); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 76 | return NULL; |
| 77 | } |
| 78 | f->f_fp = fp; |
| 79 | return (object *) f; |
| 80 | } |
| 81 | |
| 82 | object * |
| 83 | newfileobject(name, mode) |
| 84 | char *name, *mode; |
| 85 | { |
| 86 | fileobject *f; |
| 87 | FILE *fp; |
| 88 | f = (fileobject *) newopenfileobject((FILE *)NULL, name, mode); |
| 89 | if (f == NULL) |
| 90 | return NULL; |
Guido van Rossum | a08095a | 1991-02-13 23:25:27 +0000 | [diff] [blame] | 91 | #ifdef THINK_C |
| 92 | if (*mode == '*') { |
| 93 | FILE *fopenRF(); |
| 94 | f->f_fp = fopenRF(name, mode+1); |
| 95 | } |
| 96 | else |
| 97 | #endif |
| 98 | f->f_fp = fopen(name, mode); |
| 99 | if (f->f_fp == NULL) { |
| 100 | err_errno(RuntimeError); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 101 | DECREF(f); |
| 102 | return NULL; |
| 103 | } |
| 104 | return (object *)f; |
| 105 | } |
| 106 | |
| 107 | /* Methods */ |
| 108 | |
| 109 | static void |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 110 | file_dealloc(f) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 111 | fileobject *f; |
| 112 | { |
| 113 | if (f->f_fp != NULL) |
| 114 | fclose(f->f_fp); |
| 115 | if (f->f_name != NULL) |
| 116 | DECREF(f->f_name); |
| 117 | if (f->f_mode != NULL) |
| 118 | DECREF(f->f_mode); |
| 119 | free((char *)f); |
| 120 | } |
| 121 | |
| 122 | static void |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 123 | file_print(f, fp, flags) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 124 | fileobject *f; |
| 125 | FILE *fp; |
| 126 | int flags; |
| 127 | { |
| 128 | fprintf(fp, "<%s file ", f->f_fp == NULL ? "closed" : "open"); |
| 129 | printobject(f->f_name, fp, flags); |
| 130 | fprintf(fp, ", mode "); |
| 131 | printobject(f->f_mode, fp, flags); |
| 132 | fprintf(fp, ">"); |
| 133 | } |
| 134 | |
| 135 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 136 | file_repr(f) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 137 | fileobject *f; |
| 138 | { |
| 139 | char buf[300]; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 140 | /* XXX This differs from file_print if the filename contains |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 141 | quotes or other funny characters. */ |
| 142 | sprintf(buf, "<%s file '%.256s', mode '%.10s'>", |
| 143 | f->f_fp == NULL ? "closed" : "open", |
| 144 | getstringvalue(f->f_name), |
| 145 | getstringvalue(f->f_mode)); |
| 146 | return newstringobject(buf); |
| 147 | } |
| 148 | |
| 149 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 150 | file_close(f, args) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 151 | fileobject *f; |
| 152 | object *args; |
| 153 | { |
| 154 | if (args != NULL) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 155 | err_badarg(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 156 | return NULL; |
| 157 | } |
| 158 | if (f->f_fp != NULL) { |
| 159 | fclose(f->f_fp); |
| 160 | f->f_fp = NULL; |
| 161 | } |
| 162 | INCREF(None); |
| 163 | return None; |
| 164 | } |
| 165 | |
| 166 | static object * |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 167 | file_seek(f, args) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 168 | fileobject *f; |
| 169 | object *args; |
| 170 | { |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 171 | long offset; |
| 172 | long whence; |
| 173 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 174 | if (f->f_fp == NULL) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 175 | err_badarg(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 176 | return NULL; |
| 177 | } |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 178 | if (args != NULL && is_intobject(args)) { |
| 179 | offset = getintvalue(args); |
| 180 | whence = 0; /* SEEK_SET */ |
| 181 | } |
| 182 | else { |
| 183 | if (!getlonglongargs(args, &offset, &whence)) |
| 184 | return NULL; |
| 185 | } |
| 186 | errno = 0; |
| 187 | if (fseek(f->f_fp, offset, (int)whence) != 0) { |
| 188 | if (errno == 0) |
| 189 | errno = EIO; |
| 190 | return err_errno(RuntimeError); |
| 191 | } |
| 192 | INCREF(None); |
| 193 | return None; |
| 194 | } |
| 195 | |
| 196 | static object * |
| 197 | file_tell(f, args) |
| 198 | fileobject *f; |
| 199 | object *args; |
| 200 | { |
| 201 | long offset; |
| 202 | if (args != NULL || f->f_fp == NULL) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 203 | err_badarg(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 204 | return NULL; |
| 205 | } |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 206 | errno = 0; |
| 207 | offset = ftell(f->f_fp); |
| 208 | if (offset == -1L) { |
| 209 | if (errno == 0) |
| 210 | errno = EIO; |
| 211 | return err_errno(RuntimeError); |
| 212 | } |
| 213 | return newintobject(offset); |
| 214 | } |
| 215 | |
| 216 | static object * |
| 217 | file_flush(f, args) |
| 218 | fileobject *f; |
| 219 | object *args; |
| 220 | { |
| 221 | if (args != NULL || f->f_fp == NULL) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 222 | err_badarg(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 223 | return NULL; |
| 224 | } |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 225 | errno = 0; |
| 226 | if (fflush(f->f_fp) != 0) { |
| 227 | if (errno == 0) |
| 228 | errno = EIO; |
| 229 | return err_errno(RuntimeError); |
| 230 | } |
| 231 | INCREF(None); |
| 232 | return None; |
| 233 | } |
| 234 | |
| 235 | static object * |
| 236 | file_read(f, args) |
| 237 | fileobject *f; |
| 238 | object *args; |
| 239 | { |
| 240 | int n, n1, n2, n3; |
| 241 | object *v; |
| 242 | |
| 243 | if (f->f_fp == NULL) { |
| 244 | err_badarg(); |
| 245 | return NULL; |
| 246 | } |
| 247 | if (args == 0) |
| 248 | n = 0; |
| 249 | else { |
| 250 | if (!getintarg(args, &n)) |
| 251 | return NULL; |
| 252 | if (n < 0) { |
| 253 | err_badarg(); |
| 254 | return NULL; |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | n2 = n != 0 ? n : BUFSIZ; |
| 259 | v = newsizedstringobject((char *)NULL, n2); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 260 | if (v == NULL) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 261 | return NULL; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 262 | n1 = 0; |
| 263 | for (;;) { |
| 264 | n3 = fread(BUF(v)+n1, 1, n2-n1, f->f_fp); |
| 265 | /* XXX Error check? */ |
| 266 | if (n3 == 0) |
| 267 | break; |
| 268 | n1 += n3; |
| 269 | if (n1 == n) |
| 270 | break; |
| 271 | if (n == 0) { |
| 272 | n2 = n1 + BUFSIZ; |
| 273 | if (resizestring(&v, n2) < 0) |
| 274 | return NULL; |
| 275 | } |
| 276 | } |
| 277 | if (n1 != n2) |
| 278 | resizestring(&v, n1); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 279 | return v; |
| 280 | } |
| 281 | |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 282 | /* Read a line. |
| 283 | Without argument, or with a zero argument, read until end of line |
| 284 | or EOF, whichever comes first. |
| 285 | With a positive argument n, read at most n bytes until end of line |
| 286 | or EOF, whichever comes first. |
| 287 | Negative and non-integer arguments are illegal. |
| 288 | When EOF is hit immediately, return an empty string. |
| 289 | A newline character is returned as the last character of the buffer |
| 290 | if it is read. |
| 291 | */ |
| 292 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 293 | /* XXX Should this be unified with raw_input()? */ |
| 294 | |
| 295 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 296 | file_readline(f, args) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 297 | fileobject *f; |
| 298 | object *args; |
| 299 | { |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 300 | register FILE *fp; |
| 301 | register int c; |
| 302 | register char *buf, *end; |
| 303 | int n, n1, n2; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 304 | object *v; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 305 | |
| 306 | if ((fp = f->f_fp) == NULL) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 307 | err_badarg(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 308 | return NULL; |
| 309 | } |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 310 | |
| 311 | if (args == NULL) |
| 312 | n = 0; /* Unlimited */ |
| 313 | else { |
| 314 | if (!getintarg(args, &n)) |
| 315 | return NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 316 | if (n < 0) { |
| 317 | err_badarg(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 318 | return NULL; |
| 319 | } |
| 320 | } |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 321 | |
| 322 | n2 = n != 0 ? n : 100; |
| 323 | v = newsizedstringobject((char *)NULL, n2); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 324 | if (v == NULL) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 325 | return NULL; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 326 | buf = BUF(v); |
| 327 | end = buf + n2; |
| 328 | |
| 329 | for (;;) { |
| 330 | if ((c = getc(fp)) == EOF || (*buf++ = c) == '\n') |
| 331 | break; |
| 332 | /* XXX Error check? */ |
| 333 | if (buf == end) { |
| 334 | if (n != 0) |
| 335 | break; |
| 336 | n1 = n2; |
| 337 | n2 += 1000; |
| 338 | if (resizestring(&v, n2) < 0) |
| 339 | return NULL; |
| 340 | buf = BUF(v) + n1; |
| 341 | end = BUF(v) + n2; |
| 342 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 343 | } |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 344 | |
| 345 | n1 = buf - BUF(v); |
| 346 | if (n1 != n2) |
| 347 | resizestring(&v, n1); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 348 | return v; |
| 349 | } |
| 350 | |
| 351 | static object * |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 352 | file_readlines(f, args) |
| 353 | fileobject *f; |
| 354 | object *args; |
| 355 | { |
| 356 | object *list; |
| 357 | object *line; |
| 358 | |
| 359 | if ((list = newlistobject(0)) == NULL) |
| 360 | return NULL; |
| 361 | for (;;) { |
| 362 | line = file_readline(f, args); |
| 363 | if (line != NULL && getstringsize(line) == 0) { |
| 364 | DECREF(line); |
| 365 | break; |
| 366 | } |
| 367 | if (line == NULL || addlistitem(list, line) != 0) { |
| 368 | DECREF(list); |
| 369 | XDECREF(line); |
| 370 | return NULL; |
| 371 | } |
| 372 | DECREF(line); |
| 373 | } |
| 374 | return list; |
| 375 | } |
| 376 | |
| 377 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 378 | file_write(f, args) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 379 | fileobject *f; |
| 380 | object *args; |
| 381 | { |
| 382 | int n, n2; |
| 383 | if (f->f_fp == NULL) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 384 | err_badarg(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 385 | return NULL; |
| 386 | } |
| 387 | if (args == NULL || !is_stringobject(args)) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 388 | err_badarg(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 389 | return NULL; |
| 390 | } |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame^] | 391 | f->f_softspace = 0; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 392 | errno = 0; |
| 393 | n2 = fwrite(getstringvalue(args), 1, n = getstringsize(args), f->f_fp); |
| 394 | if (n2 != n) { |
| 395 | if (errno == 0) |
| 396 | errno = EIO; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 397 | err_errno(RuntimeError); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 398 | return NULL; |
| 399 | } |
| 400 | INCREF(None); |
| 401 | return None; |
| 402 | } |
| 403 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 404 | static struct methodlist file_methods[] = { |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 405 | {"close", file_close}, |
| 406 | {"flush", file_flush}, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 407 | {"read", file_read}, |
| 408 | {"readline", file_readline}, |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 409 | {"readlines", file_readlines}, |
| 410 | {"seek", file_seek}, |
| 411 | {"tell", file_tell}, |
| 412 | {"write", file_write}, |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 413 | {NULL, NULL} /* sentinel */ |
| 414 | }; |
| 415 | |
| 416 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 417 | file_getattr(f, name) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 418 | fileobject *f; |
| 419 | char *name; |
| 420 | { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 421 | return findmethod(file_methods, (object *)f, name); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 422 | } |
| 423 | |
| 424 | typeobject Filetype = { |
| 425 | OB_HEAD_INIT(&Typetype) |
| 426 | 0, |
| 427 | "file", |
| 428 | sizeof(fileobject), |
| 429 | 0, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 430 | file_dealloc, /*tp_dealloc*/ |
| 431 | file_print, /*tp_print*/ |
| 432 | file_getattr, /*tp_getattr*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 433 | 0, /*tp_setattr*/ |
| 434 | 0, /*tp_compare*/ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 435 | file_repr, /*tp_repr*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 436 | }; |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame^] | 437 | |
| 438 | /* Interface for the 'soft space' between print items. */ |
| 439 | |
| 440 | int |
| 441 | softspace(f, newflag) |
| 442 | object *f; |
| 443 | int newflag; |
| 444 | { |
| 445 | int oldflag = 0; |
| 446 | if (f != NULL && is_fileobject(f)) { |
| 447 | oldflag = ((fileobject *)f)->f_softspace; |
| 448 | ((fileobject *)f)->f_softspace = newflag; |
| 449 | } |
| 450 | return oldflag; |
| 451 | } |