projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 7eb75bcc DM |
1 | \r |
| 2 | #include "Python.h"\r | |
| 3 | #include "import.h"\r | |
| 4 | #include "cStringIO.h"\r | |
| 5 | #include "structmember.h"\r | |
| 6 | \r | |
| 7 | PyDoc_STRVAR(cStringIO_module_documentation,\r | |
| 8 | "A simple fast partial StringIO replacement.\n"\r | |
| 9 | "\n"\r | |
| 10 | "This module provides a simple useful replacement for\n"\r | |
| 11 | "the StringIO module that is written in C. It does not provide the\n"\r | |
| 12 | "full generality of StringIO, but it provides enough for most\n"\r | |
| 13 | "applications and is especially useful in conjunction with the\n"\r | |
| 14 | "pickle module.\n"\r | |
| 15 | "\n"\r | |
| 16 | "Usage:\n"\r | |
| 17 | "\n"\r | |
| 18 | " from cStringIO import StringIO\n"\r | |
| 19 | "\n"\r | |
| 20 | " an_output_stream=StringIO()\n"\r | |
| 21 | " an_output_stream.write(some_stuff)\n"\r | |
| 22 | " ...\n"\r | |
| 23 | " value=an_output_stream.getvalue()\n"\r | |
| 24 | "\n"\r | |
| 25 | " an_input_stream=StringIO(a_string)\n"\r | |
| 26 | " spam=an_input_stream.readline()\n"\r | |
| 27 | " spam=an_input_stream.read(5)\n"\r | |
| 28 | " an_input_stream.seek(0) # OK, start over\n"\r | |
| 29 | " spam=an_input_stream.read() # and read it all\n"\r | |
| 30 | " \n"\r | |
| 31 | "If someone else wants to provide a more complete implementation,\n"\r | |
| 32 | "go for it. :-) \n"\r | |
| 33 | "\n"\r | |
| 34 | "cStringIO.c,v 1.29 1999/06/15 14:10:27 jim Exp\n");\r | |
| 35 | \r | |
| 36 | /* Declaration for file-like objects that manage data as strings\r | |
| 37 | \r | |
| 38 | The IOobject type should be though of as a common base type for\r | |
| 39 | Iobjects, which provide input (read-only) StringIO objects and\r | |
| 40 | Oobjects, which provide read-write objects. Most of the methods\r | |
| 41 | depend only on common data.\r | |
| 42 | */\r | |
| 43 | \r | |
| 44 | typedef struct {\r | |
| 45 | PyObject_HEAD\r | |
| 46 | char *buf;\r | |
| 47 | Py_ssize_t pos, string_size;\r | |
| 48 | } IOobject;\r | |
| 49 | \r | |
| 50 | #define IOOOBJECT(O) ((IOobject*)(O))\r | |
| 51 | \r | |
| 52 | /* Declarations for objects of type StringO */\r | |
| 53 | \r | |
| 54 | typedef struct { /* Subtype of IOobject */\r | |
| 55 | PyObject_HEAD\r | |
| 56 | char *buf;\r | |
| 57 | Py_ssize_t pos, string_size;\r | |
| 58 | \r | |
| 59 | Py_ssize_t buf_size;\r | |
| 60 | int softspace;\r | |
| 61 | } Oobject;\r | |
| 62 | \r | |
| 63 | /* Declarations for objects of type StringI */\r | |
| 64 | \r | |
| 65 | typedef struct { /* Subtype of IOobject */\r | |
| 66 | PyObject_HEAD\r | |
| 67 | char *buf;\r | |
| 68 | Py_ssize_t pos, string_size;\r | |
| 69 | Py_buffer pbuf;\r | |
| 70 | } Iobject;\r | |
| 71 | \r | |
| 72 | /* IOobject (common) methods */\r | |
| 73 | \r | |
| 74 | PyDoc_STRVAR(IO_flush__doc__, "flush(): does nothing.");\r | |
| 75 | \r | |
| 76 | static int\r | |
| 77 | IO__opencheck(IOobject *self) {\r | |
| 78 | if (!self->buf) {\r | |
| 79 | PyErr_SetString(PyExc_ValueError,\r | |
| 80 | "I/O operation on closed file");\r | |
| 81 | return 0;\r | |
| 82 | }\r | |
| 83 | return 1;\r | |
| 84 | }\r | |
| 85 | \r | |
| 86 | static PyObject *\r | |
| 87 | IO_get_closed(IOobject *self, void *closure)\r | |
| 88 | {\r | |
| 89 | PyObject *result = Py_False;\r | |
| 90 | \r | |
| 91 | if (self->buf == NULL)\r | |
| 92 | result = Py_True;\r | |
| 93 | Py_INCREF(result);\r | |
| 94 | return result;\r | |
| 95 | }\r | |
| 96 | \r | |
| 97 | static PyGetSetDef file_getsetlist[] = {\r | |
| 98 | {"closed", (getter)IO_get_closed, NULL, "True if the file is closed"},\r | |
| 99 | {0},\r | |
| 100 | };\r | |
| 101 | \r | |
| 102 | static PyObject *\r | |
| 103 | IO_flush(IOobject *self, PyObject *unused) {\r | |
| 104 | \r | |
| 105 | if (!IO__opencheck(self)) return NULL;\r | |
| 106 | \r | |
| 107 | Py_INCREF(Py_None);\r | |
| 108 | return Py_None;\r | |
| 109 | }\r | |
| 110 | \r | |
| 111 | PyDoc_STRVAR(IO_getval__doc__,\r | |
| 112 | "getvalue([use_pos]) -- Get the string value."\r | |
| 113 | "\n"\r | |
| 114 | "If use_pos is specified and is a true value, then the string returned\n"\r | |
| 115 | "will include only the text up to the current file position.\n");\r | |
| 116 | \r | |
| 117 | static PyObject *\r | |
| 118 | IO_cgetval(PyObject *self) {\r | |
| 119 | if (!IO__opencheck(IOOOBJECT(self))) return NULL;\r | |
| 120 | assert(IOOOBJECT(self)->pos >= 0);\r | |
| 121 | return PyString_FromStringAndSize(((IOobject*)self)->buf,\r | |
| 122 | ((IOobject*)self)->pos);\r | |
| 123 | }\r | |
| 124 | \r | |
| 125 | static PyObject *\r | |
| 126 | IO_getval(IOobject *self, PyObject *args) {\r | |
| 127 | PyObject *use_pos=Py_None;\r | |
| 128 | int b;\r | |
| 129 | Py_ssize_t s;\r | |
| 130 | \r | |
| 131 | if (!IO__opencheck(self)) return NULL;\r | |
| 132 | if (!PyArg_UnpackTuple(args,"getval", 0, 1,&use_pos)) return NULL;\r | |
| 133 | \r | |
| 134 | b = PyObject_IsTrue(use_pos);\r | |
| 135 | if (b < 0)\r | |
| 136 | return NULL;\r | |
| 137 | if (b) {\r | |
| 138 | s=self->pos;\r | |
| 139 | if (s > self->string_size) s=self->string_size;\r | |
| 140 | }\r | |
| 141 | else\r | |
| 142 | s=self->string_size;\r | |
| 143 | assert(self->pos >= 0);\r | |
| 144 | return PyString_FromStringAndSize(self->buf, s);\r | |
| 145 | }\r | |
| 146 | \r | |
| 147 | PyDoc_STRVAR(IO_isatty__doc__, "isatty(): always returns 0");\r | |
| 148 | \r | |
| 149 | static PyObject *\r | |
| 150 | IO_isatty(IOobject *self, PyObject *unused) {\r | |
| 151 | if (!IO__opencheck(self)) return NULL;\r | |
| 152 | Py_INCREF(Py_False);\r | |
| 153 | return Py_False;\r | |
| 154 | }\r | |
| 155 | \r | |
| 156 | PyDoc_STRVAR(IO_read__doc__,\r | |
| 157 | "read([s]) -- Read s characters, or the rest of the string");\r | |
| 158 | \r | |
| 159 | static int\r | |
| 160 | IO_cread(PyObject *self, char **output, Py_ssize_t n) {\r | |
| 161 | Py_ssize_t l;\r | |
| 162 | \r | |
| 163 | if (!IO__opencheck(IOOOBJECT(self))) return -1;\r | |
| 164 | assert(IOOOBJECT(self)->pos >= 0);\r | |
| 165 | assert(IOOOBJECT(self)->string_size >= 0);\r | |
| 166 | l = ((IOobject*)self)->string_size - ((IOobject*)self)->pos;\r | |
| 167 | if (n < 0 || n > l) {\r | |
| 168 | n = l;\r | |
| 169 | if (n < 0) n=0;\r | |
| 170 | }\r | |
| 171 | if (n > INT_MAX) {\r | |
| 172 | PyErr_SetString(PyExc_OverflowError,\r | |
| 173 | "length too large");\r | |
| 174 | return -1;\r | |
| 175 | }\r | |
| 176 | \r | |
| 177 | *output=((IOobject*)self)->buf + ((IOobject*)self)->pos;\r | |
| 178 | ((IOobject*)self)->pos += n;\r | |
| 179 | return (int)n;\r | |
| 180 | }\r | |
| 181 | \r | |
| 182 | static PyObject *\r | |
| 183 | IO_read(IOobject *self, PyObject *args) {\r | |
| 184 | Py_ssize_t n = -1;\r | |
| 185 | char *output = NULL;\r | |
| 186 | \r | |
| 187 | if (!PyArg_ParseTuple(args, "|n:read", &n)) return NULL;\r | |
| 188 | \r | |
| 189 | if ( (n=IO_cread((PyObject*)self,&output,n)) < 0) return NULL;\r | |
| 190 | \r | |
| 191 | return PyString_FromStringAndSize(output, n);\r | |
| 192 | }\r | |
| 193 | \r | |
| 194 | PyDoc_STRVAR(IO_readline__doc__, "readline() -- Read one line");\r | |
| 195 | \r | |
| 196 | static int\r | |
| 197 | IO_creadline(PyObject *self, char **output) {\r | |
| 198 | char *n, *start, *end;\r | |
| 199 | Py_ssize_t len;\r | |
| 200 | \r | |
| 201 | if (!IO__opencheck(IOOOBJECT(self))) return -1;\r | |
| 202 | \r | |
| 203 | n = start = ((IOobject*)self)->buf + ((IOobject*)self)->pos;\r | |
| 204 | end = ((IOobject*)self)->buf + ((IOobject*)self)->string_size;\r | |
| 205 | while (n < end && *n != '\n')\r | |
| 206 | n++;\r | |
| 207 | \r | |
| 208 | if (n < end) n++;\r | |
| 209 | \r | |
| 210 | len = n - start;\r | |
| 211 | if (len > INT_MAX)\r | |
| 212 | len = INT_MAX;\r | |
| 213 | \r | |
| 214 | *output=start;\r | |
| 215 | \r | |
| 216 | assert(IOOOBJECT(self)->pos <= PY_SSIZE_T_MAX - len);\r | |
| 217 | assert(IOOOBJECT(self)->pos >= 0);\r | |
| 218 | assert(IOOOBJECT(self)->string_size >= 0);\r | |
| 219 | \r | |
| 220 | ((IOobject*)self)->pos += len;\r | |
| 221 | return (int)len;\r | |
| 222 | }\r | |
| 223 | \r | |
| 224 | static PyObject *\r | |
| 225 | IO_readline(IOobject *self, PyObject *args) {\r | |
| 226 | int n, m=-1;\r | |
| 227 | char *output;\r | |
| 228 | \r | |
| 229 | if (args)\r | |
| 230 | if (!PyArg_ParseTuple(args, "|i:readline", &m)) return NULL;\r | |
| 231 | \r | |
| 232 | if( (n=IO_creadline((PyObject*)self,&output)) < 0) return NULL;\r | |
| 233 | if (m >= 0 && m < n) {\r | |
| 234 | m = n - m;\r | |
| 235 | n -= m;\r | |
| 236 | self->pos -= m;\r | |
| 237 | }\r | |
| 238 | assert(IOOOBJECT(self)->pos >= 0);\r | |
| 239 | return PyString_FromStringAndSize(output, n);\r | |
| 240 | }\r | |
| 241 | \r | |
| 242 | PyDoc_STRVAR(IO_readlines__doc__, "readlines() -- Read all lines");\r | |
| 243 | \r | |
| 244 | static PyObject *\r | |
| 245 | IO_readlines(IOobject *self, PyObject *args) {\r | |
| 246 | int n;\r | |
| 247 | char *output;\r | |
| 248 | PyObject *result, *line;\r | |
| 249 | Py_ssize_t hint = 0, length = 0;\r | |
| 250 | \r | |
| 251 | if (!PyArg_ParseTuple(args, "|n:readlines", &hint)) return NULL;\r | |
| 252 | \r | |
| 253 | result = PyList_New(0);\r | |
| 254 | if (!result)\r | |
| 255 | return NULL;\r | |
| 256 | \r | |
| 257 | while (1){\r | |
| 258 | if ( (n = IO_creadline((PyObject*)self,&output)) < 0)\r | |
| 259 | goto err;\r | |
| 260 | if (n == 0)\r | |
| 261 | break;\r | |
| 262 | line = PyString_FromStringAndSize (output, n);\r | |
| 263 | if (!line)\r | |
| 264 | goto err;\r | |
| 265 | if (PyList_Append (result, line) == -1) {\r | |
| 266 | Py_DECREF (line);\r | |
| 267 | goto err;\r | |
| 268 | }\r | |
| 269 | Py_DECREF (line);\r | |
| 270 | length += n;\r | |
| 271 | if (hint > 0 && length >= hint)\r | |
| 272 | break;\r | |
| 273 | }\r | |
| 274 | return result;\r | |
| 275 | err:\r | |
| 276 | Py_DECREF(result);\r | |
| 277 | return NULL;\r | |
| 278 | }\r | |
| 279 | \r | |
| 280 | PyDoc_STRVAR(IO_reset__doc__,\r | |
| 281 | "reset() -- Reset the file position to the beginning");\r | |
| 282 | \r | |
| 283 | static PyObject *\r | |
| 284 | IO_reset(IOobject *self, PyObject *unused) {\r | |
| 285 | \r | |
| 286 | if (!IO__opencheck(self)) return NULL;\r | |
| 287 | \r | |
| 288 | self->pos = 0;\r | |
| 289 | \r | |
| 290 | Py_INCREF(Py_None);\r | |
| 291 | return Py_None;\r | |
| 292 | }\r | |
| 293 | \r | |
| 294 | PyDoc_STRVAR(IO_tell__doc__, "tell() -- get the current position.");\r | |
| 295 | \r | |
| 296 | static PyObject *\r | |
| 297 | IO_tell(IOobject *self, PyObject *unused) {\r | |
| 298 | \r | |
| 299 | if (!IO__opencheck(self)) return NULL;\r | |
| 300 | \r | |
| 301 | assert(self->pos >= 0);\r | |
| 302 | return PyInt_FromSsize_t(self->pos);\r | |
| 303 | }\r | |
| 304 | \r | |
| 305 | PyDoc_STRVAR(IO_truncate__doc__,\r | |
| 306 | "truncate(): truncate the file at the current position.");\r | |
| 307 | \r | |
| 308 | static PyObject *\r | |
| 309 | IO_truncate(IOobject *self, PyObject *args) {\r | |
| 310 | Py_ssize_t pos = -1;\r | |
| 311 | \r | |
| 312 | if (!IO__opencheck(self)) return NULL;\r | |
| 313 | if (!PyArg_ParseTuple(args, "|n:truncate", &pos)) return NULL;\r | |
| 314 | \r | |
| 315 | if (PyTuple_Size(args) == 0) {\r | |
| 316 | /* No argument passed, truncate to current position */\r | |
| 317 | pos = self->pos;\r | |
| 318 | }\r | |
| 319 | \r | |
| 320 | if (pos < 0) {\r | |
| 321 | errno = EINVAL;\r | |
| 322 | PyErr_SetFromErrno(PyExc_IOError);\r | |
| 323 | return NULL;\r | |
| 324 | }\r | |
| 325 | \r | |
| 326 | if (self->string_size > pos) self->string_size = pos;\r | |
| 327 | self->pos = self->string_size;\r | |
| 328 | \r | |
| 329 | Py_INCREF(Py_None);\r | |
| 330 | return Py_None;\r | |
| 331 | }\r | |
| 332 | \r | |
| 333 | static PyObject *\r | |
| 334 | IO_iternext(Iobject *self)\r | |
| 335 | {\r | |
| 336 | PyObject *next;\r | |
| 337 | next = IO_readline((IOobject *)self, NULL);\r | |
| 338 | if (!next)\r | |
| 339 | return NULL;\r | |
| 340 | if (!PyString_GET_SIZE(next)) {\r | |
| 341 | Py_DECREF(next);\r | |
| 342 | PyErr_SetNone(PyExc_StopIteration);\r | |
| 343 | return NULL;\r | |
| 344 | }\r | |
| 345 | return next;\r | |
| 346 | }\r | |
| 347 | \r | |
| 348 | \r | |
| 349 | \r | |
| 350 | \r | |
| 351 | /* Read-write object methods */\r | |
| 352 | \r | |
| 353 | PyDoc_STRVAR(IO_seek__doc__,\r | |
| 354 | "seek(position) -- set the current position\n"\r | |
| 355 | "seek(position, mode) -- mode 0: absolute; 1: relative; 2: relative to EOF");\r | |
| 356 | \r | |
| 357 | static PyObject *\r | |
| 358 | IO_seek(Iobject *self, PyObject *args) {\r | |
| 359 | Py_ssize_t position;\r | |
| 360 | int mode = 0;\r | |
| 361 | \r | |
| 362 | if (!IO__opencheck(IOOOBJECT(self))) return NULL;\r | |
| 363 | if (!PyArg_ParseTuple(args, "n|i:seek", &position, &mode))\r | |
| 364 | return NULL;\r | |
| 365 | \r | |
| 366 | if (mode == 2) {\r | |
| 367 | position += self->string_size;\r | |
| 368 | }\r | |
| 369 | else if (mode == 1) {\r | |
| 370 | position += self->pos;\r | |
| 371 | }\r | |
| 372 | \r | |
| 373 | if (position < 0) position=0;\r | |
| 374 | \r | |
| 375 | self->pos=position;\r | |
| 376 | \r | |
| 377 | Py_INCREF(Py_None);\r | |
| 378 | return Py_None;\r | |
| 379 | }\r | |
| 380 | \r | |
| 381 | PyDoc_STRVAR(O_write__doc__,\r | |
| 382 | "write(s) -- Write a string to the file"\r | |
| 383 | "\n\nNote (hack:) writing None resets the buffer");\r | |
| 384 | \r | |
| 385 | \r | |
| 386 | static int\r | |
| 387 | O_cwrite(PyObject *self, const char *c, Py_ssize_t len) {\r | |
| 388 | Py_ssize_t newpos;\r | |
| 389 | Oobject *oself;\r | |
| 390 | char *newbuf;\r | |
| 391 | \r | |
| 392 | if (!IO__opencheck(IOOOBJECT(self))) return -1;\r | |
| 393 | oself = (Oobject *)self;\r | |
| 394 | \r | |
| 395 | if (len > INT_MAX) {\r | |
| 396 | PyErr_SetString(PyExc_OverflowError,\r | |
| 397 | "length too large");\r | |
| 398 | return -1;\r | |
| 399 | }\r | |
| 400 | assert(len >= 0);\r | |
| 401 | if (oself->pos >= PY_SSIZE_T_MAX - len) {\r | |
| 402 | PyErr_SetString(PyExc_OverflowError,\r | |
| 403 | "new position too large");\r | |
| 404 | return -1;\r | |
| 405 | }\r | |
| 406 | newpos = oself->pos + len;\r | |
| 407 | if (newpos >= oself->buf_size) {\r | |
| 408 | size_t newsize = oself->buf_size;\r | |
| 409 | newsize *= 2;\r | |
| 410 | if (newsize <= (size_t)newpos || newsize > PY_SSIZE_T_MAX) {\r | |
| 411 | assert(newpos < PY_SSIZE_T_MAX - 1);\r | |
| 412 | newsize = newpos + 1;\r | |
| 413 | }\r | |
| 414 | newbuf = (char*)realloc(oself->buf, newsize);\r | |
| 415 | if (!newbuf) {\r | |
| 416 | PyErr_SetString(PyExc_MemoryError,"out of memory");\r | |
| 417 | return -1;\r | |
| 418 | }\r | |
| 419 | oself->buf_size = (Py_ssize_t)newsize;\r | |
| 420 | oself->buf = newbuf;\r | |
| 421 | }\r | |
| 422 | \r | |
| 423 | if (oself->string_size < oself->pos) {\r | |
| 424 | /* In case of overseek, pad with null bytes the buffer region between\r | |
| 425 | the end of stream and the current position.\r | |
| 426 | \r | |
| 427 | 0 lo string_size hi\r | |
| 428 | | |<---used--->|<----------available----------->|\r | |
| 429 | | | <--to pad-->|<---to write---> |\r | |
| 430 | 0 buf position\r | |
| 431 | */\r | |
| 432 | memset(oself->buf + oself->string_size, '\0',\r | |
| 433 | (oself->pos - oself->string_size) * sizeof(char));\r | |
| 434 | }\r | |
| 435 | \r | |
| 436 | memcpy(oself->buf + oself->pos, c, len);\r | |
| 437 | \r | |
| 438 | oself->pos = newpos;\r | |
| 439 | \r | |
| 440 | if (oself->string_size < oself->pos) {\r | |
| 441 | oself->string_size = oself->pos;\r | |
| 442 | }\r | |
| 443 | \r | |
| 444 | return (int)len;\r | |
| 445 | }\r | |
| 446 | \r | |
| 447 | static PyObject *\r | |
| 448 | O_write(Oobject *self, PyObject *args) {\r | |
| 449 | Py_buffer buf;\r | |
| 450 | int result;\r | |
| 451 | \r | |
| 452 | if (!PyArg_ParseTuple(args, "s*:write", &buf)) return NULL;\r | |
| 453 | \r | |
| 454 | result = O_cwrite((PyObject*)self, buf.buf, buf.len);\r | |
| 455 | PyBuffer_Release(&buf);\r | |
| 456 | if (result < 0) return NULL;\r | |
| 457 | \r | |
| 458 | Py_INCREF(Py_None);\r | |
| 459 | return Py_None;\r | |
| 460 | }\r | |
| 461 | \r | |
| 462 | PyDoc_STRVAR(O_close__doc__, "close(): explicitly release resources held.");\r | |
| 463 | \r | |
| 464 | static PyObject *\r | |
| 465 | O_close(Oobject *self, PyObject *unused) {\r | |
| 466 | if (self->buf != NULL) free(self->buf);\r | |
| 467 | self->buf = NULL;\r | |
| 468 | \r | |
| 469 | self->pos = self->string_size = self->buf_size = 0;\r | |
| 470 | \r | |
| 471 | Py_INCREF(Py_None);\r | |
| 472 | return Py_None;\r | |
| 473 | }\r | |
| 474 | \r | |
| 475 | PyDoc_STRVAR(O_writelines__doc__,\r | |
| 476 | "writelines(sequence_of_strings) -> None. Write the strings to the file.\n"\r | |
| 477 | "\n"\r | |
| 478 | "Note that newlines are not added. The sequence can be any iterable object\n"\r | |
| 479 | "producing strings. This is equivalent to calling write() for each string.");\r | |
| 480 | static PyObject *\r | |
| 481 | O_writelines(Oobject *self, PyObject *args) {\r | |
| 482 | PyObject *it, *s;\r | |
| 483 | \r | |
| 484 | it = PyObject_GetIter(args);\r | |
| 485 | if (it == NULL)\r | |
| 486 | return NULL;\r | |
| 487 | while ((s = PyIter_Next(it)) != NULL) {\r | |
| 488 | Py_ssize_t n;\r | |
| 489 | char *c;\r | |
| 490 | if (PyString_AsStringAndSize(s, &c, &n) == -1) {\r | |
| 491 | Py_DECREF(it);\r | |
| 492 | Py_DECREF(s);\r | |
| 493 | return NULL;\r | |
| 494 | }\r | |
| 495 | if (O_cwrite((PyObject *)self, c, n) == -1) {\r | |
| 496 | Py_DECREF(it);\r | |
| 497 | Py_DECREF(s);\r | |
| 498 | return NULL;\r | |
| 499 | }\r | |
| 500 | Py_DECREF(s);\r | |
| 501 | }\r | |
| 502 | \r | |
| 503 | Py_DECREF(it);\r | |
| 504 | \r | |
| 505 | /* See if PyIter_Next failed */\r | |
| 506 | if (PyErr_Occurred())\r | |
| 507 | return NULL;\r | |
| 508 | \r | |
| 509 | Py_RETURN_NONE;\r | |
| 510 | }\r | |
| 511 | static struct PyMethodDef O_methods[] = {\r | |
| 512 | /* Common methods: */\r | |
| 513 | {"flush", (PyCFunction)IO_flush, METH_NOARGS, IO_flush__doc__},\r | |
| 514 | {"getvalue", (PyCFunction)IO_getval, METH_VARARGS, IO_getval__doc__},\r | |
| 515 | {"isatty", (PyCFunction)IO_isatty, METH_NOARGS, IO_isatty__doc__},\r | |
| 516 | {"read", (PyCFunction)IO_read, METH_VARARGS, IO_read__doc__},\r | |
| 517 | {"readline", (PyCFunction)IO_readline, METH_VARARGS, IO_readline__doc__},\r | |
| 518 | {"readlines", (PyCFunction)IO_readlines,METH_VARARGS, IO_readlines__doc__},\r | |
| 519 | {"reset", (PyCFunction)IO_reset, METH_NOARGS, IO_reset__doc__},\r | |
| 520 | {"seek", (PyCFunction)IO_seek, METH_VARARGS, IO_seek__doc__},\r | |
| 521 | {"tell", (PyCFunction)IO_tell, METH_NOARGS, IO_tell__doc__},\r | |
| 522 | {"truncate", (PyCFunction)IO_truncate, METH_VARARGS, IO_truncate__doc__},\r | |
| 523 | \r | |
| 524 | /* Read-write StringIO specific methods: */\r | |
| 525 | {"close", (PyCFunction)O_close, METH_NOARGS, O_close__doc__},\r | |
| 526 | {"write", (PyCFunction)O_write, METH_VARARGS, O_write__doc__},\r | |
| 527 | {"writelines", (PyCFunction)O_writelines, METH_O, O_writelines__doc__},\r | |
| 528 | {NULL, NULL} /* sentinel */\r | |
| 529 | };\r | |
| 530 | \r | |
| 531 | static PyMemberDef O_memberlist[] = {\r | |
| 532 | {"softspace", T_INT, offsetof(Oobject, softspace), 0,\r | |
| 533 | "flag indicating that a space needs to be printed; used by print"},\r | |
| 534 | /* getattr(f, "closed") is implemented without this table */\r | |
| 535 | {NULL} /* Sentinel */\r | |
| 536 | };\r | |
| 537 | \r | |
| 538 | static void\r | |
| 539 | O_dealloc(Oobject *self) {\r | |
| 540 | if (self->buf != NULL)\r | |
| 541 | free(self->buf);\r | |
| 542 | PyObject_Del(self);\r | |
| 543 | }\r | |
| 544 | \r | |
| 545 | PyDoc_STRVAR(Otype__doc__, "Simple type for output to strings.");\r | |
| 546 | \r | |
| 547 | static PyTypeObject Otype = {\r | |
| 548 | PyVarObject_HEAD_INIT(NULL, 0)\r | |
| 549 | "cStringIO.StringO", /*tp_name*/\r | |
| 550 | sizeof(Oobject), /*tp_basicsize*/\r | |
| 551 | 0, /*tp_itemsize*/\r | |
| 552 | /* methods */\r | |
| 553 | (destructor)O_dealloc, /*tp_dealloc*/\r | |
| 554 | 0, /*tp_print*/\r | |
| 555 | 0, /*tp_getattr */\r | |
| 556 | 0, /*tp_setattr */\r | |
| 557 | 0, /*tp_compare*/\r | |
| 558 | 0, /*tp_repr*/\r | |
| 559 | 0, /*tp_as_number*/\r | |
| 560 | 0, /*tp_as_sequence*/\r | |
| 561 | 0, /*tp_as_mapping*/\r | |
| 562 | 0, /*tp_hash*/\r | |
| 563 | 0 , /*tp_call*/\r | |
| 564 | 0, /*tp_str*/\r | |
| 565 | 0, /*tp_getattro */\r | |
| 566 | 0, /*tp_setattro */\r | |
| 567 | 0, /*tp_as_buffer */\r | |
| 568 | Py_TPFLAGS_DEFAULT, /*tp_flags*/\r | |
| 569 | Otype__doc__, /*tp_doc */\r | |
| 570 | 0, /*tp_traverse */\r | |
| 571 | 0, /*tp_clear */\r | |
| 572 | 0, /*tp_richcompare */\r | |
| 573 | 0, /*tp_weaklistoffset */\r | |
| 574 | PyObject_SelfIter, /*tp_iter */\r | |
| 575 | (iternextfunc)IO_iternext, /*tp_iternext */\r | |
| 576 | O_methods, /*tp_methods */\r | |
| 577 | O_memberlist, /*tp_members */\r | |
| 578 | file_getsetlist, /*tp_getset */\r | |
| 579 | };\r | |
| 580 | \r | |
| 581 | static PyObject *\r | |
| 582 | newOobject(int size) {\r | |
| 583 | Oobject *self;\r | |
| 584 | \r | |
| 585 | self = PyObject_New(Oobject, &Otype);\r | |
| 586 | if (self == NULL)\r | |
| 587 | return NULL;\r | |
| 588 | self->pos=0;\r | |
| 589 | self->string_size = 0;\r | |
| 590 | self->softspace = 0;\r | |
| 591 | \r | |
| 592 | self->buf = (char *)malloc(size);\r | |
| 593 | if (!self->buf) {\r | |
| 594 | PyErr_SetString(PyExc_MemoryError,"out of memory");\r | |
| 595 | self->buf_size = 0;\r | |
| 596 | Py_DECREF(self);\r | |
| 597 | return NULL;\r | |
| 598 | }\r | |
| 599 | \r | |
| 600 | self->buf_size=size;\r | |
| 601 | return (PyObject*)self;\r | |
| 602 | }\r | |
| 603 | \r | |
| 604 | /* End of code for StringO objects */\r | |
| 605 | /* -------------------------------------------------------- */\r | |
| 606 | \r | |
| 607 | static PyObject *\r | |
| 608 | I_close(Iobject *self, PyObject *unused) {\r | |
| 609 | PyBuffer_Release(&self->pbuf);\r | |
| 610 | self->buf = NULL;\r | |
| 611 | \r | |
| 612 | self->pos = self->string_size = 0;\r | |
| 613 | \r | |
| 614 | Py_INCREF(Py_None);\r | |
| 615 | return Py_None;\r | |
| 616 | }\r | |
| 617 | \r | |
| 618 | static struct PyMethodDef I_methods[] = {\r | |
| 619 | /* Common methods: */\r | |
| 620 | {"flush", (PyCFunction)IO_flush, METH_NOARGS, IO_flush__doc__},\r | |
| 621 | {"getvalue", (PyCFunction)IO_getval, METH_VARARGS, IO_getval__doc__},\r | |
| 622 | {"isatty", (PyCFunction)IO_isatty, METH_NOARGS, IO_isatty__doc__},\r | |
| 623 | {"read", (PyCFunction)IO_read, METH_VARARGS, IO_read__doc__},\r | |
| 624 | {"readline", (PyCFunction)IO_readline, METH_VARARGS, IO_readline__doc__},\r | |
| 625 | {"readlines", (PyCFunction)IO_readlines,METH_VARARGS, IO_readlines__doc__},\r | |
| 626 | {"reset", (PyCFunction)IO_reset, METH_NOARGS, IO_reset__doc__},\r | |
| 627 | {"seek", (PyCFunction)IO_seek, METH_VARARGS, IO_seek__doc__},\r | |
| 628 | {"tell", (PyCFunction)IO_tell, METH_NOARGS, IO_tell__doc__},\r | |
| 629 | {"truncate", (PyCFunction)IO_truncate, METH_VARARGS, IO_truncate__doc__},\r | |
| 630 | \r | |
| 631 | /* Read-only StringIO specific methods: */\r | |
| 632 | {"close", (PyCFunction)I_close, METH_NOARGS, O_close__doc__},\r | |
| 633 | {NULL, NULL}\r | |
| 634 | };\r | |
| 635 | \r | |
| 636 | static void\r | |
| 637 | I_dealloc(Iobject *self) {\r | |
| 638 | PyBuffer_Release(&self->pbuf);\r | |
| 639 | PyObject_Del(self);\r | |
| 640 | }\r | |
| 641 | \r | |
| 642 | \r | |
| 643 | PyDoc_STRVAR(Itype__doc__,\r | |
| 644 | "Simple type for treating strings as input file streams");\r | |
| 645 | \r | |
| 646 | static PyTypeObject Itype = {\r | |
| 647 | PyVarObject_HEAD_INIT(NULL, 0)\r | |
| 648 | "cStringIO.StringI", /*tp_name*/\r | |
| 649 | sizeof(Iobject), /*tp_basicsize*/\r | |
| 650 | 0, /*tp_itemsize*/\r | |
| 651 | /* methods */\r | |
| 652 | (destructor)I_dealloc, /*tp_dealloc*/\r | |
| 653 | 0, /*tp_print*/\r | |
| 654 | 0, /* tp_getattr */\r | |
| 655 | 0, /*tp_setattr*/\r | |
| 656 | 0, /*tp_compare*/\r | |
| 657 | 0, /*tp_repr*/\r | |
| 658 | 0, /*tp_as_number*/\r | |
| 659 | 0, /*tp_as_sequence*/\r | |
| 660 | 0, /*tp_as_mapping*/\r | |
| 661 | 0, /*tp_hash*/\r | |
| 662 | 0, /*tp_call*/\r | |
| 663 | 0, /*tp_str*/\r | |
| 664 | 0, /* tp_getattro */\r | |
| 665 | 0, /* tp_setattro */\r | |
| 666 | 0, /* tp_as_buffer */\r | |
| 667 | Py_TPFLAGS_DEFAULT, /* tp_flags */\r | |
| 668 | Itype__doc__, /* tp_doc */\r | |
| 669 | 0, /* tp_traverse */\r | |
| 670 | 0, /* tp_clear */\r | |
| 671 | 0, /* tp_richcompare */\r | |
| 672 | 0, /* tp_weaklistoffset */\r | |
| 673 | PyObject_SelfIter, /* tp_iter */\r | |
| 674 | (iternextfunc)IO_iternext, /* tp_iternext */\r | |
| 675 | I_methods, /* tp_methods */\r | |
| 676 | 0, /* tp_members */\r | |
| 677 | file_getsetlist, /* tp_getset */\r | |
| 678 | };\r | |
| 679 | \r | |
| 680 | static PyObject *\r | |
| 681 | newIobject(PyObject *s) {\r | |
| 682 | Iobject *self;\r | |
| 683 | Py_buffer buf;\r | |
| 684 | PyObject *args;\r | |
| 685 | int result;\r | |
| 686 | \r | |
| 687 | args = Py_BuildValue("(O)", s);\r | |
| 688 | if (args == NULL)\r | |
| 689 | return NULL;\r | |
| 690 | result = PyArg_ParseTuple(args, "s*:StringIO", &buf);\r | |
| 691 | Py_DECREF(args);\r | |
| 692 | if (!result)\r | |
| 693 | return NULL;\r | |
| 694 | \r | |
| 695 | self = PyObject_New(Iobject, &Itype);\r | |
| 696 | if (!self) {\r | |
| 697 | PyBuffer_Release(&buf);\r | |
| 698 | return NULL;\r | |
| 699 | }\r | |
| 700 | self->buf=buf.buf;\r | |
| 701 | self->string_size=buf.len;\r | |
| 702 | self->pbuf=buf;\r | |
| 703 | self->pos=0;\r | |
| 704 | \r | |
| 705 | return (PyObject*)self;\r | |
| 706 | }\r | |
| 707 | \r | |
| 708 | /* End of code for StringI objects */\r | |
| 709 | /* -------------------------------------------------------- */\r | |
| 710 | \r | |
| 711 | \r | |
| 712 | PyDoc_STRVAR(IO_StringIO__doc__,\r | |
| 713 | "StringIO([s]) -- Return a StringIO-like stream for reading or writing");\r | |
| 714 | \r | |
| 715 | static PyObject *\r | |
| 716 | IO_StringIO(PyObject *self, PyObject *args) {\r | |
| 717 | PyObject *s=0;\r | |
| 718 | \r | |
| 719 | if (!PyArg_UnpackTuple(args, "StringIO", 0, 1, &s)) return NULL;\r | |
| 720 | \r | |
| 721 | if (s) return newIobject(s);\r | |
| 722 | return newOobject(128);\r | |
| 723 | }\r | |
| 724 | \r | |
| 725 | /* List of methods defined in the module */\r | |
| 726 | \r | |
| 727 | static struct PyMethodDef IO_methods[] = {\r | |
| 728 | {"StringIO", (PyCFunction)IO_StringIO,\r | |
| 729 | METH_VARARGS, IO_StringIO__doc__},\r | |
| 730 | {NULL, NULL} /* sentinel */\r | |
| 731 | };\r | |
| 732 | \r | |
| 733 | \r | |
| 734 | /* Initialization function for the module (*must* be called initcStringIO) */\r | |
| 735 | \r | |
| 736 | static struct PycStringIO_CAPI CAPI = {\r | |
| 737 | IO_cread,\r | |
| 738 | IO_creadline,\r | |
| 739 | O_cwrite,\r | |
| 740 | IO_cgetval,\r | |
| 741 | newOobject,\r | |
| 742 | newIobject,\r | |
| 743 | &Itype,\r | |
| 744 | &Otype,\r | |
| 745 | };\r | |
| 746 | \r | |
| 747 | #ifndef PyMODINIT_FUNC /* declarations for DLL import/export */\r | |
| 748 | #define PyMODINIT_FUNC void\r | |
| 749 | #endif\r | |
| 750 | PyMODINIT_FUNC\r | |
| 751 | initcStringIO(void) {\r | |
| 752 | PyObject *m, *d, *v;\r | |
| 753 | \r | |
| 754 | \r | |
| 755 | /* Create the module and add the functions */\r | |
| 756 | m = Py_InitModule4("cStringIO", IO_methods,\r | |
| 757 | cStringIO_module_documentation,\r | |
| 758 | (PyObject*)NULL,PYTHON_API_VERSION);\r | |
| 759 | if (m == NULL) return;\r | |
| 760 | \r | |
| 761 | /* Add some symbolic constants to the module */\r | |
| 762 | d = PyModule_GetDict(m);\r | |
| 763 | \r | |
| 764 | /* Export C API */\r | |
| 765 | Py_TYPE(&Itype)=&PyType_Type;\r | |
| 766 | Py_TYPE(&Otype)=&PyType_Type;\r | |
| 767 | if (PyType_Ready(&Otype) < 0) return;\r | |
| 768 | if (PyType_Ready(&Itype) < 0) return;\r | |
| 769 | v = PyCapsule_New(&CAPI, PycStringIO_CAPSULE_NAME, NULL);\r | |
| 770 | PyDict_SetItemString(d,"cStringIO_CAPI", v);\r | |
| 771 | Py_XDECREF(v);\r | |
| 772 | \r | |
| 773 | /* Export Types */\r | |
| 774 | PyDict_SetItemString(d,"InputType", (PyObject*)&Itype);\r | |
| 775 | PyDict_SetItemString(d,"OutputType", (PyObject*)&Otype);\r | |
| 776 | \r | |
| 777 | /* Maybe make certain warnings go away */\r | |
| 778 | if (0) PycString_IMPORT;\r | |
| 779 | }\r |