Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1 | /* PyByteArray (bytearray) implementation */ |
| 2 | |
| 3 | #define PY_SSIZE_T_CLEAN |
| 4 | #include "Python.h" |
| 5 | #include "structmember.h" |
| 6 | #include "bytes_methods.h" |
| 7 | |
Antoine Pitrou | fc8d6f4 | 2010-01-17 12:38:54 +0000 | [diff] [blame] | 8 | char _PyByteArray_empty_string[] = ""; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 9 | |
| 10 | void |
| 11 | PyByteArray_Fini(void) |
| 12 | { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 13 | } |
| 14 | |
| 15 | int |
| 16 | PyByteArray_Init(void) |
| 17 | { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 18 | return 1; |
| 19 | } |
| 20 | |
| 21 | /* end nullbytes support */ |
| 22 | |
| 23 | /* Helpers */ |
| 24 | |
| 25 | static int |
| 26 | _getbytevalue(PyObject* arg, int *value) |
| 27 | { |
| 28 | long face_value; |
| 29 | |
| 30 | if (PyLong_Check(arg)) { |
| 31 | face_value = PyLong_AsLong(arg); |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 32 | } else { |
| 33 | PyObject *index = PyNumber_Index(arg); |
| 34 | if (index == NULL) { |
| 35 | PyErr_Format(PyExc_TypeError, "an integer is required"); |
Mark Dickinson | 10de93a | 2010-07-09 19:25:48 +0000 | [diff] [blame] | 36 | *value = -1; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 37 | return 0; |
| 38 | } |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 39 | face_value = PyLong_AsLong(index); |
| 40 | Py_DECREF(index); |
| 41 | } |
| 42 | |
| 43 | if (face_value < 0 || face_value >= 256) { |
| 44 | /* this includes the OverflowError in case the long is too large */ |
| 45 | PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)"); |
Mark Dickinson | 10de93a | 2010-07-09 19:25:48 +0000 | [diff] [blame] | 46 | *value = -1; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 47 | return 0; |
| 48 | } |
| 49 | |
| 50 | *value = face_value; |
| 51 | return 1; |
| 52 | } |
| 53 | |
| 54 | static int |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 55 | bytearray_getbuffer(PyByteArrayObject *obj, Py_buffer *view, int flags) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 56 | { |
| 57 | int ret; |
| 58 | void *ptr; |
| 59 | if (view == NULL) { |
| 60 | obj->ob_exports++; |
| 61 | return 0; |
| 62 | } |
Antoine Pitrou | fc8d6f4 | 2010-01-17 12:38:54 +0000 | [diff] [blame] | 63 | ptr = (void *) PyByteArray_AS_STRING(obj); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 64 | ret = PyBuffer_FillInfo(view, (PyObject*)obj, ptr, Py_SIZE(obj), 0, flags); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 65 | if (ret >= 0) { |
| 66 | obj->ob_exports++; |
| 67 | } |
| 68 | return ret; |
| 69 | } |
| 70 | |
| 71 | static void |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 72 | bytearray_releasebuffer(PyByteArrayObject *obj, Py_buffer *view) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 73 | { |
| 74 | obj->ob_exports--; |
| 75 | } |
| 76 | |
| 77 | static Py_ssize_t |
| 78 | _getbuffer(PyObject *obj, Py_buffer *view) |
| 79 | { |
| 80 | PyBufferProcs *buffer = Py_TYPE(obj)->tp_as_buffer; |
| 81 | |
| 82 | if (buffer == NULL || buffer->bf_getbuffer == NULL) |
| 83 | { |
| 84 | PyErr_Format(PyExc_TypeError, |
| 85 | "Type %.100s doesn't support the buffer API", |
| 86 | Py_TYPE(obj)->tp_name); |
| 87 | return -1; |
| 88 | } |
| 89 | |
| 90 | if (buffer->bf_getbuffer(obj, view, PyBUF_SIMPLE) < 0) |
| 91 | return -1; |
| 92 | return view->len; |
| 93 | } |
| 94 | |
Antoine Pitrou | 5504e89 | 2008-12-06 21:27:53 +0000 | [diff] [blame] | 95 | static int |
| 96 | _canresize(PyByteArrayObject *self) |
| 97 | { |
| 98 | if (self->ob_exports > 0) { |
| 99 | PyErr_SetString(PyExc_BufferError, |
| 100 | "Existing exports of data: object cannot be re-sized"); |
| 101 | return 0; |
| 102 | } |
| 103 | return 1; |
| 104 | } |
| 105 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 106 | /* Direct API functions */ |
| 107 | |
| 108 | PyObject * |
| 109 | PyByteArray_FromObject(PyObject *input) |
| 110 | { |
| 111 | return PyObject_CallFunctionObjArgs((PyObject *)&PyByteArray_Type, |
| 112 | input, NULL); |
| 113 | } |
| 114 | |
| 115 | PyObject * |
| 116 | PyByteArray_FromStringAndSize(const char *bytes, Py_ssize_t size) |
| 117 | { |
| 118 | PyByteArrayObject *new; |
| 119 | Py_ssize_t alloc; |
| 120 | |
| 121 | if (size < 0) { |
| 122 | PyErr_SetString(PyExc_SystemError, |
| 123 | "Negative size passed to PyByteArray_FromStringAndSize"); |
| 124 | return NULL; |
| 125 | } |
| 126 | |
Neal Norwitz | 3ce5d92 | 2008-08-24 07:08:55 +0000 | [diff] [blame] | 127 | /* Prevent buffer overflow when setting alloc to size+1. */ |
| 128 | if (size == PY_SSIZE_T_MAX) { |
| 129 | return PyErr_NoMemory(); |
| 130 | } |
| 131 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 132 | new = PyObject_New(PyByteArrayObject, &PyByteArray_Type); |
| 133 | if (new == NULL) |
| 134 | return NULL; |
| 135 | |
| 136 | if (size == 0) { |
| 137 | new->ob_bytes = NULL; |
| 138 | alloc = 0; |
| 139 | } |
| 140 | else { |
| 141 | alloc = size + 1; |
Antoine Pitrou | 39aba4f | 2011-11-12 21:15:28 +0100 | [diff] [blame] | 142 | new->ob_bytes = PyObject_Malloc(alloc); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 143 | if (new->ob_bytes == NULL) { |
| 144 | Py_DECREF(new); |
| 145 | return PyErr_NoMemory(); |
| 146 | } |
Antoine Pitrou | fc8d6f4 | 2010-01-17 12:38:54 +0000 | [diff] [blame] | 147 | if (bytes != NULL && size > 0) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 148 | memcpy(new->ob_bytes, bytes, size); |
| 149 | new->ob_bytes[size] = '\0'; /* Trailing null byte */ |
| 150 | } |
| 151 | Py_SIZE(new) = size; |
| 152 | new->ob_alloc = alloc; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 153 | new->ob_start = new->ob_bytes; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 154 | new->ob_exports = 0; |
| 155 | |
| 156 | return (PyObject *)new; |
| 157 | } |
| 158 | |
| 159 | Py_ssize_t |
| 160 | PyByteArray_Size(PyObject *self) |
| 161 | { |
| 162 | assert(self != NULL); |
| 163 | assert(PyByteArray_Check(self)); |
| 164 | |
| 165 | return PyByteArray_GET_SIZE(self); |
| 166 | } |
| 167 | |
| 168 | char * |
| 169 | PyByteArray_AsString(PyObject *self) |
| 170 | { |
| 171 | assert(self != NULL); |
| 172 | assert(PyByteArray_Check(self)); |
| 173 | |
| 174 | return PyByteArray_AS_STRING(self); |
| 175 | } |
| 176 | |
| 177 | int |
| 178 | PyByteArray_Resize(PyObject *self, Py_ssize_t size) |
| 179 | { |
| 180 | void *sval; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 181 | PyByteArrayObject *obj = ((PyByteArrayObject *)self); |
| 182 | Py_ssize_t alloc = obj->ob_alloc; |
| 183 | Py_ssize_t logical_offset = obj->ob_start - obj->ob_bytes; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 184 | |
| 185 | assert(self != NULL); |
| 186 | assert(PyByteArray_Check(self)); |
| 187 | assert(size >= 0); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 188 | assert(logical_offset >= 0); |
| 189 | assert(logical_offset <= alloc); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 190 | |
Antoine Pitrou | 5504e89 | 2008-12-06 21:27:53 +0000 | [diff] [blame] | 191 | if (size == Py_SIZE(self)) { |
| 192 | return 0; |
| 193 | } |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 194 | if (!_canresize(obj)) { |
Antoine Pitrou | 5504e89 | 2008-12-06 21:27:53 +0000 | [diff] [blame] | 195 | return -1; |
| 196 | } |
| 197 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 198 | if (size + logical_offset + 1 < alloc) { |
| 199 | /* Current buffer is large enough to host the requested size, |
| 200 | decide on a strategy. */ |
| 201 | if (size < alloc / 2) { |
| 202 | /* Major downsize; resize down to exact size */ |
| 203 | alloc = size + 1; |
| 204 | } |
| 205 | else { |
| 206 | /* Minor downsize; quick exit */ |
| 207 | Py_SIZE(self) = size; |
| 208 | PyByteArray_AS_STRING(self)[size] = '\0'; /* Trailing null */ |
| 209 | return 0; |
| 210 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 211 | } |
| 212 | else { |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 213 | /* Need growing, decide on a strategy */ |
| 214 | if (size <= alloc * 1.125) { |
| 215 | /* Moderate upsize; overallocate similar to list_resize() */ |
| 216 | alloc = size + (size >> 3) + (size < 9 ? 3 : 6); |
| 217 | } |
| 218 | else { |
| 219 | /* Major upsize; resize up to exact size */ |
| 220 | alloc = size + 1; |
| 221 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 222 | } |
| 223 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 224 | if (logical_offset > 0) { |
| 225 | sval = PyObject_Malloc(alloc); |
| 226 | if (sval == NULL) { |
| 227 | PyErr_NoMemory(); |
| 228 | return -1; |
| 229 | } |
| 230 | memcpy(sval, PyByteArray_AS_STRING(self), Py_MIN(size, Py_SIZE(self))); |
| 231 | PyObject_Free(obj->ob_bytes); |
| 232 | } |
| 233 | else { |
| 234 | sval = PyObject_Realloc(obj->ob_bytes, alloc); |
| 235 | if (sval == NULL) { |
| 236 | PyErr_NoMemory(); |
| 237 | return -1; |
| 238 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 239 | } |
| 240 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 241 | obj->ob_bytes = obj->ob_start = sval; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 242 | Py_SIZE(self) = size; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 243 | obj->ob_alloc = alloc; |
| 244 | obj->ob_bytes[size] = '\0'; /* Trailing null byte */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 245 | |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | PyObject * |
| 250 | PyByteArray_Concat(PyObject *a, PyObject *b) |
| 251 | { |
| 252 | Py_ssize_t size; |
| 253 | Py_buffer va, vb; |
| 254 | PyByteArrayObject *result = NULL; |
| 255 | |
| 256 | va.len = -1; |
| 257 | vb.len = -1; |
| 258 | if (_getbuffer(a, &va) < 0 || |
| 259 | _getbuffer(b, &vb) < 0) { |
| 260 | PyErr_Format(PyExc_TypeError, "can't concat %.100s to %.100s", |
| 261 | Py_TYPE(a)->tp_name, Py_TYPE(b)->tp_name); |
| 262 | goto done; |
| 263 | } |
| 264 | |
| 265 | size = va.len + vb.len; |
| 266 | if (size < 0) { |
Benjamin Peterson | e0124bd | 2009-03-09 21:04:33 +0000 | [diff] [blame] | 267 | PyErr_NoMemory(); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 268 | goto done; |
| 269 | } |
| 270 | |
| 271 | result = (PyByteArrayObject *) PyByteArray_FromStringAndSize(NULL, size); |
| 272 | if (result != NULL) { |
| 273 | memcpy(result->ob_bytes, va.buf, va.len); |
| 274 | memcpy(result->ob_bytes + va.len, vb.buf, vb.len); |
| 275 | } |
| 276 | |
| 277 | done: |
| 278 | if (va.len != -1) |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 279 | PyBuffer_Release(&va); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 280 | if (vb.len != -1) |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 281 | PyBuffer_Release(&vb); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 282 | return (PyObject *)result; |
| 283 | } |
| 284 | |
| 285 | /* Functions stuffed into the type object */ |
| 286 | |
| 287 | static Py_ssize_t |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 288 | bytearray_length(PyByteArrayObject *self) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 289 | { |
| 290 | return Py_SIZE(self); |
| 291 | } |
| 292 | |
| 293 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 294 | bytearray_iconcat(PyByteArrayObject *self, PyObject *other) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 295 | { |
| 296 | Py_ssize_t mysize; |
| 297 | Py_ssize_t size; |
| 298 | Py_buffer vo; |
| 299 | |
| 300 | if (_getbuffer(other, &vo) < 0) { |
| 301 | PyErr_Format(PyExc_TypeError, "can't concat %.100s to %.100s", |
| 302 | Py_TYPE(other)->tp_name, Py_TYPE(self)->tp_name); |
| 303 | return NULL; |
| 304 | } |
| 305 | |
| 306 | mysize = Py_SIZE(self); |
| 307 | size = mysize + vo.len; |
| 308 | if (size < 0) { |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 309 | PyBuffer_Release(&vo); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 310 | return PyErr_NoMemory(); |
| 311 | } |
| 312 | if (size < self->ob_alloc) { |
| 313 | Py_SIZE(self) = size; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 314 | PyByteArray_AS_STRING(self)[Py_SIZE(self)] = '\0'; /* Trailing null byte */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 315 | } |
| 316 | else if (PyByteArray_Resize((PyObject *)self, size) < 0) { |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 317 | PyBuffer_Release(&vo); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 318 | return NULL; |
| 319 | } |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 320 | memcpy(PyByteArray_AS_STRING(self) + mysize, vo.buf, vo.len); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 321 | PyBuffer_Release(&vo); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 322 | Py_INCREF(self); |
| 323 | return (PyObject *)self; |
| 324 | } |
| 325 | |
| 326 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 327 | bytearray_repeat(PyByteArrayObject *self, Py_ssize_t count) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 328 | { |
| 329 | PyByteArrayObject *result; |
| 330 | Py_ssize_t mysize; |
| 331 | Py_ssize_t size; |
| 332 | |
| 333 | if (count < 0) |
| 334 | count = 0; |
| 335 | mysize = Py_SIZE(self); |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 336 | if (count > 0 && mysize > PY_SSIZE_T_MAX / count) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 337 | return PyErr_NoMemory(); |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 338 | size = mysize * count; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 339 | result = (PyByteArrayObject *)PyByteArray_FromStringAndSize(NULL, size); |
| 340 | if (result != NULL && size != 0) { |
| 341 | if (mysize == 1) |
| 342 | memset(result->ob_bytes, self->ob_bytes[0], size); |
| 343 | else { |
| 344 | Py_ssize_t i; |
| 345 | for (i = 0; i < count; i++) |
| 346 | memcpy(result->ob_bytes + i*mysize, self->ob_bytes, mysize); |
| 347 | } |
| 348 | } |
| 349 | return (PyObject *)result; |
| 350 | } |
| 351 | |
| 352 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 353 | bytearray_irepeat(PyByteArrayObject *self, Py_ssize_t count) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 354 | { |
| 355 | Py_ssize_t mysize; |
| 356 | Py_ssize_t size; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 357 | char *buf; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 358 | |
| 359 | if (count < 0) |
| 360 | count = 0; |
| 361 | mysize = Py_SIZE(self); |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 362 | if (count > 0 && mysize > PY_SSIZE_T_MAX / count) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 363 | return PyErr_NoMemory(); |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 364 | size = mysize * count; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 365 | if (PyByteArray_Resize((PyObject *)self, size) < 0) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 366 | return NULL; |
| 367 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 368 | buf = PyByteArray_AS_STRING(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 369 | if (mysize == 1) |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 370 | memset(buf, buf[0], size); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 371 | else { |
| 372 | Py_ssize_t i; |
| 373 | for (i = 1; i < count; i++) |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 374 | memcpy(buf + i*mysize, buf, mysize); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 375 | } |
| 376 | |
| 377 | Py_INCREF(self); |
| 378 | return (PyObject *)self; |
| 379 | } |
| 380 | |
| 381 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 382 | bytearray_getitem(PyByteArrayObject *self, Py_ssize_t i) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 383 | { |
| 384 | if (i < 0) |
| 385 | i += Py_SIZE(self); |
| 386 | if (i < 0 || i >= Py_SIZE(self)) { |
| 387 | PyErr_SetString(PyExc_IndexError, "bytearray index out of range"); |
| 388 | return NULL; |
| 389 | } |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 390 | return PyLong_FromLong((unsigned char)(PyByteArray_AS_STRING(self)[i])); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 394 | bytearray_subscript(PyByteArrayObject *self, PyObject *index) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 395 | { |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 396 | if (PyIndex_Check(index)) { |
| 397 | Py_ssize_t i = PyNumber_AsSsize_t(index, PyExc_IndexError); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 398 | |
| 399 | if (i == -1 && PyErr_Occurred()) |
| 400 | return NULL; |
| 401 | |
| 402 | if (i < 0) |
| 403 | i += PyByteArray_GET_SIZE(self); |
| 404 | |
| 405 | if (i < 0 || i >= Py_SIZE(self)) { |
| 406 | PyErr_SetString(PyExc_IndexError, "bytearray index out of range"); |
| 407 | return NULL; |
| 408 | } |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 409 | return PyLong_FromLong((unsigned char)(PyByteArray_AS_STRING(self)[i])); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 410 | } |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 411 | else if (PySlice_Check(index)) { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 412 | Py_ssize_t start, stop, step, slicelength, cur, i; |
Martin v. Löwis | 4d0d471 | 2010-12-03 20:14:31 +0000 | [diff] [blame] | 413 | if (PySlice_GetIndicesEx(index, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 414 | PyByteArray_GET_SIZE(self), |
| 415 | &start, &stop, &step, &slicelength) < 0) { |
| 416 | return NULL; |
| 417 | } |
| 418 | |
| 419 | if (slicelength <= 0) |
| 420 | return PyByteArray_FromStringAndSize("", 0); |
| 421 | else if (step == 1) { |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 422 | return PyByteArray_FromStringAndSize( |
| 423 | PyByteArray_AS_STRING(self) + start, slicelength); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 424 | } |
| 425 | else { |
| 426 | char *source_buf = PyByteArray_AS_STRING(self); |
Alexandre Vassalotti | e2641f4 | 2009-04-03 06:38:02 +0000 | [diff] [blame] | 427 | char *result_buf; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 428 | PyObject *result; |
| 429 | |
Alexandre Vassalotti | e2641f4 | 2009-04-03 06:38:02 +0000 | [diff] [blame] | 430 | result = PyByteArray_FromStringAndSize(NULL, slicelength); |
| 431 | if (result == NULL) |
| 432 | return NULL; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 433 | |
Alexandre Vassalotti | e2641f4 | 2009-04-03 06:38:02 +0000 | [diff] [blame] | 434 | result_buf = PyByteArray_AS_STRING(result); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 435 | for (cur = start, i = 0; i < slicelength; |
| 436 | cur += step, i++) { |
| 437 | result_buf[i] = source_buf[cur]; |
| 438 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 439 | return result; |
| 440 | } |
| 441 | } |
| 442 | else { |
| 443 | PyErr_SetString(PyExc_TypeError, "bytearray indices must be integers"); |
| 444 | return NULL; |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | static int |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 449 | bytearray_setslice_linear(PyByteArrayObject *self, |
| 450 | Py_ssize_t lo, Py_ssize_t hi, |
| 451 | char *bytes, Py_ssize_t bytes_len) |
| 452 | { |
| 453 | Py_ssize_t avail = hi - lo; |
| 454 | char *buf = PyByteArray_AS_STRING(self); |
| 455 | Py_ssize_t growth = bytes_len - avail; |
Victor Stinner | 8455723 | 2013-11-21 12:29:51 +0100 | [diff] [blame] | 456 | int res = 0; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 457 | assert(avail >= 0); |
| 458 | |
Victor Stinner | 8455723 | 2013-11-21 12:29:51 +0100 | [diff] [blame] | 459 | if (growth < 0) { |
| 460 | if (!_canresize(self)) |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 461 | return -1; |
Victor Stinner | 8455723 | 2013-11-21 12:29:51 +0100 | [diff] [blame] | 462 | |
| 463 | if (lo == 0) { |
| 464 | /* Shrink the buffer by advancing its logical start */ |
| 465 | self->ob_start -= growth; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 466 | /* |
Victor Stinner | 8455723 | 2013-11-21 12:29:51 +0100 | [diff] [blame] | 467 | 0 lo hi old_size |
| 468 | | |<----avail----->|<-----tail------>| |
| 469 | | |<-bytes_len->|<-----tail------>| |
| 470 | 0 new_lo new_hi new_size |
| 471 | */ |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 472 | } |
Victor Stinner | 8455723 | 2013-11-21 12:29:51 +0100 | [diff] [blame] | 473 | else { |
| 474 | /* |
| 475 | 0 lo hi old_size |
| 476 | | |<----avail----->|<-----tomove------>| |
| 477 | | |<-bytes_len->|<-----tomove------>| |
| 478 | 0 lo new_hi new_size |
| 479 | */ |
| 480 | memmove(buf + lo + bytes_len, buf + hi, |
| 481 | Py_SIZE(self) - hi); |
| 482 | } |
| 483 | if (PyByteArray_Resize((PyObject *)self, |
| 484 | Py_SIZE(self) + growth) < 0) { |
| 485 | /* Issue #19578: Handling the memory allocation failure here is |
| 486 | tricky here because the bytearray object has already been |
| 487 | modified. Depending on growth and lo, the behaviour is |
| 488 | different. |
| 489 | |
| 490 | If growth < 0 and lo != 0, the operation is completed, but a |
| 491 | MemoryError is still raised and the memory block is not |
| 492 | shrinked. Otherwise, the bytearray is restored in its previous |
| 493 | state and a MemoryError is raised. */ |
| 494 | if (lo == 0) { |
| 495 | self->ob_start += growth; |
| 496 | return -1; |
| 497 | } |
| 498 | /* memmove() removed bytes, the bytearray object cannot be |
| 499 | restored in its previous state. */ |
| 500 | Py_SIZE(self) += growth; |
| 501 | res = -1; |
| 502 | } |
| 503 | buf = PyByteArray_AS_STRING(self); |
| 504 | } |
| 505 | else if (growth > 0) { |
| 506 | if (Py_SIZE(self) > (Py_ssize_t)PY_SSIZE_T_MAX - growth) { |
| 507 | PyErr_NoMemory(); |
| 508 | return -1; |
| 509 | } |
| 510 | |
| 511 | if (PyByteArray_Resize((PyObject *)self, |
| 512 | Py_SIZE(self) + growth) < 0) { |
| 513 | return -1; |
| 514 | } |
| 515 | buf = PyByteArray_AS_STRING(self); |
| 516 | /* Make the place for the additional bytes */ |
| 517 | /* |
| 518 | 0 lo hi old_size |
| 519 | | |<-avail->|<-----tomove------>| |
| 520 | | |<---bytes_len-->|<-----tomove------>| |
| 521 | 0 lo new_hi new_size |
| 522 | */ |
| 523 | memmove(buf + lo + bytes_len, buf + hi, |
| 524 | Py_SIZE(self) - lo - bytes_len); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 525 | } |
| 526 | |
| 527 | if (bytes_len > 0) |
| 528 | memcpy(buf + lo, bytes, bytes_len); |
Victor Stinner | 8455723 | 2013-11-21 12:29:51 +0100 | [diff] [blame] | 529 | return res; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 530 | } |
| 531 | |
| 532 | static int |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 533 | bytearray_setslice(PyByteArrayObject *self, Py_ssize_t lo, Py_ssize_t hi, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 534 | PyObject *values) |
| 535 | { |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 536 | Py_ssize_t needed; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 537 | void *bytes; |
| 538 | Py_buffer vbytes; |
| 539 | int res = 0; |
| 540 | |
| 541 | vbytes.len = -1; |
| 542 | if (values == (PyObject *)self) { |
| 543 | /* Make a copy and call this function recursively */ |
| 544 | int err; |
| 545 | values = PyByteArray_FromObject(values); |
| 546 | if (values == NULL) |
| 547 | return -1; |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 548 | err = bytearray_setslice(self, lo, hi, values); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 549 | Py_DECREF(values); |
| 550 | return err; |
| 551 | } |
| 552 | if (values == NULL) { |
| 553 | /* del b[lo:hi] */ |
| 554 | bytes = NULL; |
| 555 | needed = 0; |
| 556 | } |
| 557 | else { |
| 558 | if (_getbuffer(values, &vbytes) < 0) { |
| 559 | PyErr_Format(PyExc_TypeError, |
Georg Brandl | 3dbca81 | 2008-07-23 16:10:53 +0000 | [diff] [blame] | 560 | "can't set bytearray slice from %.100s", |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 561 | Py_TYPE(values)->tp_name); |
| 562 | return -1; |
| 563 | } |
| 564 | needed = vbytes.len; |
| 565 | bytes = vbytes.buf; |
| 566 | } |
| 567 | |
| 568 | if (lo < 0) |
| 569 | lo = 0; |
| 570 | if (hi < lo) |
| 571 | hi = lo; |
| 572 | if (hi > Py_SIZE(self)) |
| 573 | hi = Py_SIZE(self); |
| 574 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 575 | res = bytearray_setslice_linear(self, lo, hi, bytes, needed); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 576 | if (vbytes.len != -1) |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 577 | PyBuffer_Release(&vbytes); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 578 | return res; |
| 579 | } |
| 580 | |
| 581 | static int |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 582 | bytearray_setitem(PyByteArrayObject *self, Py_ssize_t i, PyObject *value) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 583 | { |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 584 | int ival; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 585 | |
| 586 | if (i < 0) |
| 587 | i += Py_SIZE(self); |
| 588 | |
| 589 | if (i < 0 || i >= Py_SIZE(self)) { |
| 590 | PyErr_SetString(PyExc_IndexError, "bytearray index out of range"); |
| 591 | return -1; |
| 592 | } |
| 593 | |
| 594 | if (value == NULL) |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 595 | return bytearray_setslice(self, i, i+1, NULL); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 596 | |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 597 | if (!_getbytevalue(value, &ival)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 598 | return -1; |
| 599 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 600 | PyByteArray_AS_STRING(self)[i] = ival; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | static int |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 605 | bytearray_ass_subscript(PyByteArrayObject *self, PyObject *index, PyObject *values) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 606 | { |
| 607 | Py_ssize_t start, stop, step, slicelen, needed; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 608 | char *buf, *bytes; |
| 609 | buf = PyByteArray_AS_STRING(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 610 | |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 611 | if (PyIndex_Check(index)) { |
| 612 | Py_ssize_t i = PyNumber_AsSsize_t(index, PyExc_IndexError); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 613 | |
| 614 | if (i == -1 && PyErr_Occurred()) |
| 615 | return -1; |
| 616 | |
| 617 | if (i < 0) |
| 618 | i += PyByteArray_GET_SIZE(self); |
| 619 | |
| 620 | if (i < 0 || i >= Py_SIZE(self)) { |
| 621 | PyErr_SetString(PyExc_IndexError, "bytearray index out of range"); |
| 622 | return -1; |
| 623 | } |
| 624 | |
| 625 | if (values == NULL) { |
| 626 | /* Fall through to slice assignment */ |
| 627 | start = i; |
| 628 | stop = i + 1; |
| 629 | step = 1; |
| 630 | slicelen = 1; |
| 631 | } |
| 632 | else { |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 633 | int ival; |
| 634 | if (!_getbytevalue(values, &ival)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 635 | return -1; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 636 | buf[i] = (char)ival; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 637 | return 0; |
| 638 | } |
| 639 | } |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 640 | else if (PySlice_Check(index)) { |
Martin v. Löwis | 4d0d471 | 2010-12-03 20:14:31 +0000 | [diff] [blame] | 641 | if (PySlice_GetIndicesEx(index, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 642 | PyByteArray_GET_SIZE(self), |
| 643 | &start, &stop, &step, &slicelen) < 0) { |
| 644 | return -1; |
| 645 | } |
| 646 | } |
| 647 | else { |
| 648 | PyErr_SetString(PyExc_TypeError, "bytearray indices must be integer"); |
| 649 | return -1; |
| 650 | } |
| 651 | |
| 652 | if (values == NULL) { |
| 653 | bytes = NULL; |
| 654 | needed = 0; |
| 655 | } |
| 656 | else if (values == (PyObject *)self || !PyByteArray_Check(values)) { |
Christian Heimes | 6d26ade | 2012-11-03 23:07:59 +0100 | [diff] [blame] | 657 | int err; |
Ezio Melotti | c64bcbe | 2012-11-03 21:19:06 +0200 | [diff] [blame] | 658 | if (PyNumber_Check(values) || PyUnicode_Check(values)) { |
| 659 | PyErr_SetString(PyExc_TypeError, |
| 660 | "can assign only bytes, buffers, or iterables " |
| 661 | "of ints in range(0, 256)"); |
| 662 | return -1; |
| 663 | } |
Georg Brandl | f3fa568 | 2010-12-04 17:09:30 +0000 | [diff] [blame] | 664 | /* Make a copy and call this function recursively */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 665 | values = PyByteArray_FromObject(values); |
| 666 | if (values == NULL) |
| 667 | return -1; |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 668 | err = bytearray_ass_subscript(self, index, values); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 669 | Py_DECREF(values); |
| 670 | return err; |
| 671 | } |
| 672 | else { |
| 673 | assert(PyByteArray_Check(values)); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 674 | bytes = PyByteArray_AS_STRING(values); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 675 | needed = Py_SIZE(values); |
| 676 | } |
| 677 | /* Make sure b[5:2] = ... inserts before 5, not before 2. */ |
| 678 | if ((step < 0 && start < stop) || |
| 679 | (step > 0 && start > stop)) |
| 680 | stop = start; |
| 681 | if (step == 1) { |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 682 | return bytearray_setslice_linear(self, start, stop, bytes, needed); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 683 | } |
| 684 | else { |
| 685 | if (needed == 0) { |
| 686 | /* Delete slice */ |
Mark Dickinson | bc09964 | 2010-01-29 17:27:24 +0000 | [diff] [blame] | 687 | size_t cur; |
| 688 | Py_ssize_t i; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 689 | |
Antoine Pitrou | 5504e89 | 2008-12-06 21:27:53 +0000 | [diff] [blame] | 690 | if (!_canresize(self)) |
| 691 | return -1; |
Mark Dickinson | 7e3b948 | 2010-08-06 21:33:18 +0000 | [diff] [blame] | 692 | |
| 693 | if (slicelen == 0) |
| 694 | /* Nothing to do here. */ |
| 695 | return 0; |
| 696 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 697 | if (step < 0) { |
| 698 | stop = start + 1; |
| 699 | start = stop + step * (slicelen - 1) - 1; |
| 700 | step = -step; |
| 701 | } |
| 702 | for (cur = start, i = 0; |
| 703 | i < slicelen; cur += step, i++) { |
| 704 | Py_ssize_t lim = step - 1; |
| 705 | |
Mark Dickinson | 66f575b | 2010-02-14 12:53:32 +0000 | [diff] [blame] | 706 | if (cur + step >= (size_t)PyByteArray_GET_SIZE(self)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 707 | lim = PyByteArray_GET_SIZE(self) - cur - 1; |
| 708 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 709 | memmove(buf + cur - i, |
| 710 | buf + cur + 1, lim); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 711 | } |
| 712 | /* Move the tail of the bytes, in one chunk */ |
Mark Dickinson | 7e3b948 | 2010-08-06 21:33:18 +0000 | [diff] [blame] | 713 | cur = start + (size_t)slicelen*step; |
Mark Dickinson | 66f575b | 2010-02-14 12:53:32 +0000 | [diff] [blame] | 714 | if (cur < (size_t)PyByteArray_GET_SIZE(self)) { |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 715 | memmove(buf + cur - slicelen, |
| 716 | buf + cur, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 717 | PyByteArray_GET_SIZE(self) - cur); |
| 718 | } |
| 719 | if (PyByteArray_Resize((PyObject *)self, |
| 720 | PyByteArray_GET_SIZE(self) - slicelen) < 0) |
| 721 | return -1; |
| 722 | |
| 723 | return 0; |
| 724 | } |
| 725 | else { |
| 726 | /* Assign slice */ |
Mark Dickinson | 7e3b948 | 2010-08-06 21:33:18 +0000 | [diff] [blame] | 727 | Py_ssize_t i; |
| 728 | size_t cur; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 729 | |
| 730 | if (needed != slicelen) { |
| 731 | PyErr_Format(PyExc_ValueError, |
| 732 | "attempt to assign bytes of size %zd " |
| 733 | "to extended slice of size %zd", |
| 734 | needed, slicelen); |
| 735 | return -1; |
| 736 | } |
| 737 | for (cur = start, i = 0; i < slicelen; cur += step, i++) |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 738 | buf[cur] = bytes[i]; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 739 | return 0; |
| 740 | } |
| 741 | } |
| 742 | } |
| 743 | |
| 744 | static int |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 745 | bytearray_init(PyByteArrayObject *self, PyObject *args, PyObject *kwds) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 746 | { |
| 747 | static char *kwlist[] = {"source", "encoding", "errors", 0}; |
| 748 | PyObject *arg = NULL; |
| 749 | const char *encoding = NULL; |
| 750 | const char *errors = NULL; |
| 751 | Py_ssize_t count; |
| 752 | PyObject *it; |
| 753 | PyObject *(*iternext)(PyObject *); |
| 754 | |
| 755 | if (Py_SIZE(self) != 0) { |
| 756 | /* Empty previous contents (yes, do this first of all!) */ |
| 757 | if (PyByteArray_Resize((PyObject *)self, 0) < 0) |
| 758 | return -1; |
| 759 | } |
| 760 | |
| 761 | /* Parse arguments */ |
Georg Brandl | 3dbca81 | 2008-07-23 16:10:53 +0000 | [diff] [blame] | 762 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|Oss:bytearray", kwlist, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 763 | &arg, &encoding, &errors)) |
| 764 | return -1; |
| 765 | |
| 766 | /* Make a quick exit if no first argument */ |
| 767 | if (arg == NULL) { |
| 768 | if (encoding != NULL || errors != NULL) { |
| 769 | PyErr_SetString(PyExc_TypeError, |
| 770 | "encoding or errors without sequence argument"); |
| 771 | return -1; |
| 772 | } |
| 773 | return 0; |
| 774 | } |
| 775 | |
| 776 | if (PyUnicode_Check(arg)) { |
| 777 | /* Encode via the codec registry */ |
| 778 | PyObject *encoded, *new; |
| 779 | if (encoding == NULL) { |
| 780 | PyErr_SetString(PyExc_TypeError, |
| 781 | "string argument without an encoding"); |
| 782 | return -1; |
| 783 | } |
Marc-André Lemburg | b2750b5 | 2008-06-06 12:18:17 +0000 | [diff] [blame] | 784 | encoded = PyUnicode_AsEncodedString(arg, encoding, errors); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 785 | if (encoded == NULL) |
| 786 | return -1; |
| 787 | assert(PyBytes_Check(encoded)); |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 788 | new = bytearray_iconcat(self, encoded); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 789 | Py_DECREF(encoded); |
| 790 | if (new == NULL) |
| 791 | return -1; |
| 792 | Py_DECREF(new); |
| 793 | return 0; |
| 794 | } |
| 795 | |
| 796 | /* If it's not unicode, there can't be encoding or errors */ |
| 797 | if (encoding != NULL || errors != NULL) { |
| 798 | PyErr_SetString(PyExc_TypeError, |
| 799 | "encoding or errors without a string argument"); |
| 800 | return -1; |
| 801 | } |
| 802 | |
| 803 | /* Is it an int? */ |
Benjamin Peterson | 8380dd5 | 2010-04-16 22:51:37 +0000 | [diff] [blame] | 804 | count = PyNumber_AsSsize_t(arg, PyExc_OverflowError); |
| 805 | if (count == -1 && PyErr_Occurred()) { |
| 806 | if (PyErr_ExceptionMatches(PyExc_OverflowError)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 807 | return -1; |
Benjamin Peterson | 9c0e94f | 2010-04-16 23:00:53 +0000 | [diff] [blame] | 808 | PyErr_Clear(); |
Benjamin Peterson | 8380dd5 | 2010-04-16 22:51:37 +0000 | [diff] [blame] | 809 | } |
| 810 | else if (count < 0) { |
| 811 | PyErr_SetString(PyExc_ValueError, "negative count"); |
| 812 | return -1; |
| 813 | } |
| 814 | else { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 815 | if (count > 0) { |
| 816 | if (PyByteArray_Resize((PyObject *)self, count)) |
| 817 | return -1; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 818 | memset(PyByteArray_AS_STRING(self), 0, count); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 819 | } |
| 820 | return 0; |
| 821 | } |
| 822 | |
| 823 | /* Use the buffer API */ |
| 824 | if (PyObject_CheckBuffer(arg)) { |
| 825 | Py_ssize_t size; |
| 826 | Py_buffer view; |
| 827 | if (PyObject_GetBuffer(arg, &view, PyBUF_FULL_RO) < 0) |
| 828 | return -1; |
| 829 | size = view.len; |
| 830 | if (PyByteArray_Resize((PyObject *)self, size) < 0) goto fail; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 831 | if (PyBuffer_ToContiguous(PyByteArray_AS_STRING(self), |
| 832 | &view, size, 'C') < 0) |
Stefan Krah | 7d12d9d | 2012-07-28 12:25:55 +0200 | [diff] [blame] | 833 | goto fail; |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 834 | PyBuffer_Release(&view); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 835 | return 0; |
| 836 | fail: |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 837 | PyBuffer_Release(&view); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 838 | return -1; |
| 839 | } |
| 840 | |
| 841 | /* XXX Optimize this if the arguments is a list, tuple */ |
| 842 | |
| 843 | /* Get the iterator */ |
| 844 | it = PyObject_GetIter(arg); |
| 845 | if (it == NULL) |
| 846 | return -1; |
| 847 | iternext = *Py_TYPE(it)->tp_iternext; |
| 848 | |
| 849 | /* Run the iterator to exhaustion */ |
| 850 | for (;;) { |
| 851 | PyObject *item; |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 852 | int rc, value; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 853 | |
| 854 | /* Get the next item */ |
| 855 | item = iternext(it); |
| 856 | if (item == NULL) { |
| 857 | if (PyErr_Occurred()) { |
| 858 | if (!PyErr_ExceptionMatches(PyExc_StopIteration)) |
| 859 | goto error; |
| 860 | PyErr_Clear(); |
| 861 | } |
| 862 | break; |
| 863 | } |
| 864 | |
| 865 | /* Interpret it as an int (__index__) */ |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 866 | rc = _getbytevalue(item, &value); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 867 | Py_DECREF(item); |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 868 | if (!rc) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 869 | goto error; |
| 870 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 871 | /* Append the byte */ |
| 872 | if (Py_SIZE(self) < self->ob_alloc) |
| 873 | Py_SIZE(self)++; |
| 874 | else if (PyByteArray_Resize((PyObject *)self, Py_SIZE(self)+1) < 0) |
| 875 | goto error; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 876 | PyByteArray_AS_STRING(self)[Py_SIZE(self)-1] = value; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 877 | } |
| 878 | |
| 879 | /* Clean up and return success */ |
| 880 | Py_DECREF(it); |
| 881 | return 0; |
| 882 | |
| 883 | error: |
| 884 | /* Error handling when it != NULL */ |
| 885 | Py_DECREF(it); |
| 886 | return -1; |
| 887 | } |
| 888 | |
| 889 | /* Mostly copied from string_repr, but without the |
| 890 | "smart quote" functionality. */ |
| 891 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 892 | bytearray_repr(PyByteArrayObject *self) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 893 | { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 894 | const char *quote_prefix = "bytearray(b"; |
| 895 | const char *quote_postfix = ")"; |
| 896 | Py_ssize_t length = Py_SIZE(self); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 897 | /* 15 == strlen(quote_prefix) + 2 + strlen(quote_postfix) + 1 */ |
Mark Dickinson | 66f575b | 2010-02-14 12:53:32 +0000 | [diff] [blame] | 898 | size_t newsize; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 899 | PyObject *v; |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 900 | Py_ssize_t i; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 901 | char *bytes; |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 902 | char c; |
| 903 | char *p; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 904 | int quote; |
| 905 | char *test, *start; |
| 906 | char *buffer; |
| 907 | |
| 908 | if (length > (PY_SSIZE_T_MAX - 15) / 4) { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 909 | PyErr_SetString(PyExc_OverflowError, |
| 910 | "bytearray object is too large to make repr"); |
| 911 | return NULL; |
| 912 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 913 | |
| 914 | newsize = 15 + length * 4; |
Antoine Pitrou | 39aba4f | 2011-11-12 21:15:28 +0100 | [diff] [blame] | 915 | buffer = PyObject_Malloc(newsize); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 916 | if (buffer == NULL) { |
| 917 | PyErr_NoMemory(); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 918 | return NULL; |
| 919 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 920 | |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 921 | /* Figure out which quote to use; single is preferred */ |
| 922 | quote = '\''; |
| 923 | start = PyByteArray_AS_STRING(self); |
| 924 | for (test = start; test < start+length; ++test) { |
| 925 | if (*test == '"') { |
| 926 | quote = '\''; /* back to single */ |
| 927 | break; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 928 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 929 | else if (*test == '\'') |
| 930 | quote = '"'; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 931 | } |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 932 | |
| 933 | p = buffer; |
| 934 | while (*quote_prefix) |
| 935 | *p++ = *quote_prefix++; |
| 936 | *p++ = quote; |
| 937 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 938 | bytes = PyByteArray_AS_STRING(self); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 939 | for (i = 0; i < length; i++) { |
| 940 | /* There's at least enough room for a hex escape |
| 941 | and a closing quote. */ |
| 942 | assert(newsize - (p - buffer) >= 5); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 943 | c = bytes[i]; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 944 | if (c == '\'' || c == '\\') |
| 945 | *p++ = '\\', *p++ = c; |
| 946 | else if (c == '\t') |
| 947 | *p++ = '\\', *p++ = 't'; |
| 948 | else if (c == '\n') |
| 949 | *p++ = '\\', *p++ = 'n'; |
| 950 | else if (c == '\r') |
| 951 | *p++ = '\\', *p++ = 'r'; |
| 952 | else if (c == 0) |
| 953 | *p++ = '\\', *p++ = 'x', *p++ = '0', *p++ = '0'; |
| 954 | else if (c < ' ' || c >= 0x7f) { |
| 955 | *p++ = '\\'; |
| 956 | *p++ = 'x'; |
Victor Stinner | f5cff56 | 2011-10-14 02:13:11 +0200 | [diff] [blame] | 957 | *p++ = Py_hexdigits[(c & 0xf0) >> 4]; |
| 958 | *p++ = Py_hexdigits[c & 0xf]; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 959 | } |
| 960 | else |
| 961 | *p++ = c; |
| 962 | } |
| 963 | assert(newsize - (p - buffer) >= 1); |
| 964 | *p++ = quote; |
| 965 | while (*quote_postfix) { |
| 966 | *p++ = *quote_postfix++; |
| 967 | } |
| 968 | |
| 969 | v = PyUnicode_DecodeASCII(buffer, p - buffer, NULL); |
Antoine Pitrou | 39aba4f | 2011-11-12 21:15:28 +0100 | [diff] [blame] | 970 | PyObject_Free(buffer); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 971 | return v; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 972 | } |
| 973 | |
| 974 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 975 | bytearray_str(PyObject *op) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 976 | { |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 977 | if (Py_BytesWarningFlag) { |
| 978 | if (PyErr_WarnEx(PyExc_BytesWarning, |
| 979 | "str() on a bytearray instance", 1)) |
| 980 | return NULL; |
| 981 | } |
| 982 | return bytearray_repr((PyByteArrayObject*)op); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 983 | } |
| 984 | |
| 985 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 986 | bytearray_richcompare(PyObject *self, PyObject *other, int op) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 987 | { |
| 988 | Py_ssize_t self_size, other_size; |
| 989 | Py_buffer self_bytes, other_bytes; |
| 990 | PyObject *res; |
| 991 | Py_ssize_t minsize; |
| 992 | int cmp; |
| 993 | |
| 994 | /* Bytes can be compared to anything that supports the (binary) |
| 995 | buffer API. Except that a comparison with Unicode is always an |
| 996 | error, even if the comparison is for equality. */ |
| 997 | if (PyObject_IsInstance(self, (PyObject*)&PyUnicode_Type) || |
| 998 | PyObject_IsInstance(other, (PyObject*)&PyUnicode_Type)) { |
Barry Warsaw | 9e9dcd6 | 2008-10-17 01:50:37 +0000 | [diff] [blame] | 999 | if (Py_BytesWarningFlag && (op == Py_EQ || op == Py_NE)) { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1000 | if (PyErr_WarnEx(PyExc_BytesWarning, |
Georg Brandl | e5d68ac | 2008-06-04 11:30:26 +0000 | [diff] [blame] | 1001 | "Comparison between bytearray and string", 1)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1002 | return NULL; |
| 1003 | } |
| 1004 | |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1005 | Py_RETURN_NOTIMPLEMENTED; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1006 | } |
| 1007 | |
| 1008 | self_size = _getbuffer(self, &self_bytes); |
| 1009 | if (self_size < 0) { |
| 1010 | PyErr_Clear(); |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1011 | Py_RETURN_NOTIMPLEMENTED; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1012 | } |
| 1013 | |
| 1014 | other_size = _getbuffer(other, &other_bytes); |
| 1015 | if (other_size < 0) { |
| 1016 | PyErr_Clear(); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1017 | PyBuffer_Release(&self_bytes); |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1018 | Py_RETURN_NOTIMPLEMENTED; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1019 | } |
| 1020 | |
| 1021 | if (self_size != other_size && (op == Py_EQ || op == Py_NE)) { |
| 1022 | /* Shortcut: if the lengths differ, the objects differ */ |
| 1023 | cmp = (op == Py_NE); |
| 1024 | } |
| 1025 | else { |
| 1026 | minsize = self_size; |
| 1027 | if (other_size < minsize) |
| 1028 | minsize = other_size; |
| 1029 | |
| 1030 | cmp = memcmp(self_bytes.buf, other_bytes.buf, minsize); |
| 1031 | /* In ISO C, memcmp() guarantees to use unsigned bytes! */ |
| 1032 | |
| 1033 | if (cmp == 0) { |
| 1034 | if (self_size < other_size) |
| 1035 | cmp = -1; |
| 1036 | else if (self_size > other_size) |
| 1037 | cmp = 1; |
| 1038 | } |
| 1039 | |
| 1040 | switch (op) { |
| 1041 | case Py_LT: cmp = cmp < 0; break; |
| 1042 | case Py_LE: cmp = cmp <= 0; break; |
| 1043 | case Py_EQ: cmp = cmp == 0; break; |
| 1044 | case Py_NE: cmp = cmp != 0; break; |
| 1045 | case Py_GT: cmp = cmp > 0; break; |
| 1046 | case Py_GE: cmp = cmp >= 0; break; |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | res = cmp ? Py_True : Py_False; |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1051 | PyBuffer_Release(&self_bytes); |
| 1052 | PyBuffer_Release(&other_bytes); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1053 | Py_INCREF(res); |
| 1054 | return res; |
| 1055 | } |
| 1056 | |
| 1057 | static void |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1058 | bytearray_dealloc(PyByteArrayObject *self) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1059 | { |
Benjamin Peterson | e0124bd | 2009-03-09 21:04:33 +0000 | [diff] [blame] | 1060 | if (self->ob_exports > 0) { |
| 1061 | PyErr_SetString(PyExc_SystemError, |
Benjamin Peterson | ef3e4c2 | 2009-04-11 19:48:14 +0000 | [diff] [blame] | 1062 | "deallocated bytearray object has exported buffers"); |
Benjamin Peterson | e0124bd | 2009-03-09 21:04:33 +0000 | [diff] [blame] | 1063 | PyErr_Print(); |
| 1064 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1065 | if (self->ob_bytes != 0) { |
Antoine Pitrou | 39aba4f | 2011-11-12 21:15:28 +0100 | [diff] [blame] | 1066 | PyObject_Free(self->ob_bytes); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1067 | } |
| 1068 | Py_TYPE(self)->tp_free((PyObject *)self); |
| 1069 | } |
| 1070 | |
| 1071 | |
| 1072 | /* -------------------------------------------------------------------- */ |
| 1073 | /* Methods */ |
| 1074 | |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1075 | #define FASTSEARCH fastsearch |
| 1076 | #define STRINGLIB(F) stringlib_##F |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1077 | #define STRINGLIB_CHAR char |
Antoine Pitrou | cfc22b4 | 2012-10-16 21:07:23 +0200 | [diff] [blame] | 1078 | #define STRINGLIB_SIZEOF_CHAR 1 |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1079 | #define STRINGLIB_LEN PyByteArray_GET_SIZE |
| 1080 | #define STRINGLIB_STR PyByteArray_AS_STRING |
| 1081 | #define STRINGLIB_NEW PyByteArray_FromStringAndSize |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1082 | #define STRINGLIB_ISSPACE Py_ISSPACE |
| 1083 | #define STRINGLIB_ISLINEBREAK(x) ((x == '\n') || (x == '\r')) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1084 | #define STRINGLIB_CHECK_EXACT PyByteArray_CheckExact |
| 1085 | #define STRINGLIB_MUTABLE 1 |
| 1086 | |
| 1087 | #include "stringlib/fastsearch.h" |
| 1088 | #include "stringlib/count.h" |
| 1089 | #include "stringlib/find.h" |
Antoine Pitrou | cfc22b4 | 2012-10-16 21:07:23 +0200 | [diff] [blame] | 1090 | #include "stringlib/join.h" |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1091 | #include "stringlib/partition.h" |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1092 | #include "stringlib/split.h" |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1093 | #include "stringlib/ctype.h" |
| 1094 | #include "stringlib/transmogrify.h" |
| 1095 | |
| 1096 | |
| 1097 | /* The following Py_LOCAL_INLINE and Py_LOCAL functions |
| 1098 | were copied from the old char* style string object. */ |
| 1099 | |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1100 | /* helper macro to fixup start/end slice values */ |
| 1101 | #define ADJUST_INDICES(start, end, len) \ |
| 1102 | if (end > len) \ |
| 1103 | end = len; \ |
| 1104 | else if (end < 0) { \ |
| 1105 | end += len; \ |
| 1106 | if (end < 0) \ |
| 1107 | end = 0; \ |
| 1108 | } \ |
| 1109 | if (start < 0) { \ |
| 1110 | start += len; \ |
| 1111 | if (start < 0) \ |
| 1112 | start = 0; \ |
| 1113 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1114 | |
| 1115 | Py_LOCAL_INLINE(Py_ssize_t) |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1116 | bytearray_find_internal(PyByteArrayObject *self, PyObject *args, int dir) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1117 | { |
| 1118 | PyObject *subobj; |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1119 | char byte; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1120 | Py_buffer subbuf; |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1121 | const char *sub; |
| 1122 | Py_ssize_t sub_len; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1123 | Py_ssize_t start=0, end=PY_SSIZE_T_MAX; |
| 1124 | Py_ssize_t res; |
| 1125 | |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1126 | if (!stringlib_parse_args_finds_byte("find/rfind/index/rindex", |
| 1127 | args, &subobj, &byte, &start, &end)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1128 | return -2; |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1129 | |
| 1130 | if (subobj) { |
| 1131 | if (_getbuffer(subobj, &subbuf) < 0) |
| 1132 | return -2; |
| 1133 | |
| 1134 | sub = subbuf.buf; |
| 1135 | sub_len = subbuf.len; |
| 1136 | } |
| 1137 | else { |
| 1138 | sub = &byte; |
| 1139 | sub_len = 1; |
| 1140 | } |
| 1141 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1142 | if (dir > 0) |
| 1143 | res = stringlib_find_slice( |
| 1144 | PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self), |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1145 | sub, sub_len, start, end); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1146 | else |
| 1147 | res = stringlib_rfind_slice( |
| 1148 | PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self), |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1149 | sub, sub_len, start, end); |
| 1150 | |
| 1151 | if (subobj) |
| 1152 | PyBuffer_Release(&subbuf); |
| 1153 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1154 | return res; |
| 1155 | } |
| 1156 | |
| 1157 | PyDoc_STRVAR(find__doc__, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 1158 | "B.find(sub[, start[, end]]) -> int\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1159 | \n\ |
| 1160 | Return the lowest index in B where subsection sub is found,\n\ |
Senthil Kumaran | 53516a8 | 2011-07-27 23:33:54 +0800 | [diff] [blame] | 1161 | such that sub is contained within B[start,end]. Optional\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1162 | arguments start and end are interpreted as in slice notation.\n\ |
| 1163 | \n\ |
| 1164 | Return -1 on failure."); |
| 1165 | |
| 1166 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1167 | bytearray_find(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1168 | { |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1169 | Py_ssize_t result = bytearray_find_internal(self, args, +1); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1170 | if (result == -2) |
| 1171 | return NULL; |
| 1172 | return PyLong_FromSsize_t(result); |
| 1173 | } |
| 1174 | |
| 1175 | PyDoc_STRVAR(count__doc__, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 1176 | "B.count(sub[, start[, end]]) -> int\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1177 | \n\ |
| 1178 | Return the number of non-overlapping occurrences of subsection sub in\n\ |
| 1179 | bytes B[start:end]. Optional arguments start and end are interpreted\n\ |
| 1180 | as in slice notation."); |
| 1181 | |
| 1182 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1183 | bytearray_count(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1184 | { |
| 1185 | PyObject *sub_obj; |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1186 | const char *str = PyByteArray_AS_STRING(self), *sub; |
| 1187 | Py_ssize_t sub_len; |
| 1188 | char byte; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1189 | Py_ssize_t start = 0, end = PY_SSIZE_T_MAX; |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1190 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1191 | Py_buffer vsub; |
| 1192 | PyObject *count_obj; |
| 1193 | |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1194 | if (!stringlib_parse_args_finds_byte("count", args, &sub_obj, &byte, |
| 1195 | &start, &end)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1196 | return NULL; |
| 1197 | |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1198 | if (sub_obj) { |
| 1199 | if (_getbuffer(sub_obj, &vsub) < 0) |
| 1200 | return NULL; |
| 1201 | |
| 1202 | sub = vsub.buf; |
| 1203 | sub_len = vsub.len; |
| 1204 | } |
| 1205 | else { |
| 1206 | sub = &byte; |
| 1207 | sub_len = 1; |
| 1208 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1209 | |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1210 | ADJUST_INDICES(start, end, PyByteArray_GET_SIZE(self)); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1211 | |
| 1212 | count_obj = PyLong_FromSsize_t( |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1213 | stringlib_count(str + start, end - start, sub, sub_len, PY_SSIZE_T_MAX) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1214 | ); |
Antoine Pitrou | ac65d96 | 2011-10-20 23:54:17 +0200 | [diff] [blame] | 1215 | |
| 1216 | if (sub_obj) |
| 1217 | PyBuffer_Release(&vsub); |
| 1218 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1219 | return count_obj; |
| 1220 | } |
| 1221 | |
Eli Bendersky | 4db28d3 | 2011-03-03 18:21:02 +0000 | [diff] [blame] | 1222 | PyDoc_STRVAR(clear__doc__, |
| 1223 | "B.clear() -> None\n\ |
| 1224 | \n\ |
| 1225 | Remove all items from B."); |
| 1226 | |
Victor Stinner | 6430fd5 | 2011-09-29 04:02:13 +0200 | [diff] [blame] | 1227 | static PyObject * |
Eli Bendersky | 4db28d3 | 2011-03-03 18:21:02 +0000 | [diff] [blame] | 1228 | bytearray_clear(PyByteArrayObject *self) |
| 1229 | { |
| 1230 | if (PyByteArray_Resize((PyObject *)self, 0) < 0) |
| 1231 | return NULL; |
| 1232 | Py_RETURN_NONE; |
| 1233 | } |
| 1234 | |
| 1235 | PyDoc_STRVAR(copy__doc__, |
| 1236 | "B.copy() -> bytearray\n\ |
| 1237 | \n\ |
| 1238 | Return a copy of B."); |
| 1239 | |
| 1240 | static PyObject * |
| 1241 | bytearray_copy(PyByteArrayObject *self) |
| 1242 | { |
| 1243 | return PyByteArray_FromStringAndSize(PyByteArray_AS_STRING((PyObject *)self), |
| 1244 | PyByteArray_GET_SIZE(self)); |
| 1245 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1246 | |
| 1247 | PyDoc_STRVAR(index__doc__, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 1248 | "B.index(sub[, start[, end]]) -> int\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1249 | \n\ |
| 1250 | Like B.find() but raise ValueError when the subsection is not found."); |
| 1251 | |
| 1252 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1253 | bytearray_index(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1254 | { |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1255 | Py_ssize_t result = bytearray_find_internal(self, args, +1); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1256 | if (result == -2) |
| 1257 | return NULL; |
| 1258 | if (result == -1) { |
| 1259 | PyErr_SetString(PyExc_ValueError, |
| 1260 | "subsection not found"); |
| 1261 | return NULL; |
| 1262 | } |
| 1263 | return PyLong_FromSsize_t(result); |
| 1264 | } |
| 1265 | |
| 1266 | |
| 1267 | PyDoc_STRVAR(rfind__doc__, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 1268 | "B.rfind(sub[, start[, end]]) -> int\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1269 | \n\ |
| 1270 | Return the highest index in B where subsection sub is found,\n\ |
Senthil Kumaran | 53516a8 | 2011-07-27 23:33:54 +0800 | [diff] [blame] | 1271 | such that sub is contained within B[start,end]. Optional\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1272 | arguments start and end are interpreted as in slice notation.\n\ |
| 1273 | \n\ |
| 1274 | Return -1 on failure."); |
| 1275 | |
| 1276 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1277 | bytearray_rfind(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1278 | { |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1279 | Py_ssize_t result = bytearray_find_internal(self, args, -1); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1280 | if (result == -2) |
| 1281 | return NULL; |
| 1282 | return PyLong_FromSsize_t(result); |
| 1283 | } |
| 1284 | |
| 1285 | |
| 1286 | PyDoc_STRVAR(rindex__doc__, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 1287 | "B.rindex(sub[, start[, end]]) -> int\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1288 | \n\ |
| 1289 | Like B.rfind() but raise ValueError when the subsection is not found."); |
| 1290 | |
| 1291 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1292 | bytearray_rindex(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1293 | { |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1294 | Py_ssize_t result = bytearray_find_internal(self, args, -1); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1295 | if (result == -2) |
| 1296 | return NULL; |
| 1297 | if (result == -1) { |
| 1298 | PyErr_SetString(PyExc_ValueError, |
| 1299 | "subsection not found"); |
| 1300 | return NULL; |
| 1301 | } |
| 1302 | return PyLong_FromSsize_t(result); |
| 1303 | } |
| 1304 | |
| 1305 | |
| 1306 | static int |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1307 | bytearray_contains(PyObject *self, PyObject *arg) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1308 | { |
| 1309 | Py_ssize_t ival = PyNumber_AsSsize_t(arg, PyExc_ValueError); |
| 1310 | if (ival == -1 && PyErr_Occurred()) { |
| 1311 | Py_buffer varg; |
Antoine Pitrou | 0010d37 | 2010-08-15 17:12:55 +0000 | [diff] [blame] | 1312 | Py_ssize_t pos; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1313 | PyErr_Clear(); |
| 1314 | if (_getbuffer(arg, &varg) < 0) |
| 1315 | return -1; |
| 1316 | pos = stringlib_find(PyByteArray_AS_STRING(self), Py_SIZE(self), |
| 1317 | varg.buf, varg.len, 0); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1318 | PyBuffer_Release(&varg); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1319 | return pos >= 0; |
| 1320 | } |
| 1321 | if (ival < 0 || ival >= 256) { |
| 1322 | PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)"); |
| 1323 | return -1; |
| 1324 | } |
| 1325 | |
Antoine Pitrou | 0010d37 | 2010-08-15 17:12:55 +0000 | [diff] [blame] | 1326 | return memchr(PyByteArray_AS_STRING(self), (int) ival, Py_SIZE(self)) != NULL; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1327 | } |
| 1328 | |
| 1329 | |
| 1330 | /* Matches the end (direction >= 0) or start (direction < 0) of self |
| 1331 | * against substr, using the start and end arguments. Returns |
| 1332 | * -1 on error, 0 if not found and 1 if found. |
| 1333 | */ |
| 1334 | Py_LOCAL(int) |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1335 | _bytearray_tailmatch(PyByteArrayObject *self, PyObject *substr, Py_ssize_t start, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1336 | Py_ssize_t end, int direction) |
| 1337 | { |
| 1338 | Py_ssize_t len = PyByteArray_GET_SIZE(self); |
| 1339 | const char* str; |
| 1340 | Py_buffer vsubstr; |
| 1341 | int rv = 0; |
| 1342 | |
| 1343 | str = PyByteArray_AS_STRING(self); |
| 1344 | |
| 1345 | if (_getbuffer(substr, &vsubstr) < 0) |
| 1346 | return -1; |
| 1347 | |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1348 | ADJUST_INDICES(start, end, len); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1349 | |
| 1350 | if (direction < 0) { |
| 1351 | /* startswith */ |
| 1352 | if (start+vsubstr.len > len) { |
| 1353 | goto done; |
| 1354 | } |
| 1355 | } else { |
| 1356 | /* endswith */ |
| 1357 | if (end-start < vsubstr.len || start > len) { |
| 1358 | goto done; |
| 1359 | } |
| 1360 | |
| 1361 | if (end-vsubstr.len > start) |
| 1362 | start = end - vsubstr.len; |
| 1363 | } |
| 1364 | if (end-start >= vsubstr.len) |
| 1365 | rv = ! memcmp(str+start, vsubstr.buf, vsubstr.len); |
| 1366 | |
| 1367 | done: |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1368 | PyBuffer_Release(&vsubstr); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1369 | return rv; |
| 1370 | } |
| 1371 | |
| 1372 | |
| 1373 | PyDoc_STRVAR(startswith__doc__, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 1374 | "B.startswith(prefix[, start[, end]]) -> bool\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1375 | \n\ |
| 1376 | Return True if B starts with the specified prefix, False otherwise.\n\ |
| 1377 | With optional start, test B beginning at that position.\n\ |
| 1378 | With optional end, stop comparing B at that position.\n\ |
Ezio Melotti | ba42fd5 | 2011-04-26 06:09:45 +0300 | [diff] [blame] | 1379 | prefix can also be a tuple of bytes to try."); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1380 | |
| 1381 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1382 | bytearray_startswith(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1383 | { |
| 1384 | Py_ssize_t start = 0; |
| 1385 | Py_ssize_t end = PY_SSIZE_T_MAX; |
| 1386 | PyObject *subobj; |
| 1387 | int result; |
| 1388 | |
Jesus Cea | ac45150 | 2011-04-20 17:09:23 +0200 | [diff] [blame] | 1389 | if (!stringlib_parse_args_finds("startswith", args, &subobj, &start, &end)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1390 | return NULL; |
| 1391 | if (PyTuple_Check(subobj)) { |
| 1392 | Py_ssize_t i; |
| 1393 | for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) { |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1394 | result = _bytearray_tailmatch(self, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1395 | PyTuple_GET_ITEM(subobj, i), |
| 1396 | start, end, -1); |
| 1397 | if (result == -1) |
| 1398 | return NULL; |
| 1399 | else if (result) { |
| 1400 | Py_RETURN_TRUE; |
| 1401 | } |
| 1402 | } |
| 1403 | Py_RETURN_FALSE; |
| 1404 | } |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1405 | result = _bytearray_tailmatch(self, subobj, start, end, -1); |
Ezio Melotti | ba42fd5 | 2011-04-26 06:09:45 +0300 | [diff] [blame] | 1406 | if (result == -1) { |
| 1407 | if (PyErr_ExceptionMatches(PyExc_TypeError)) |
| 1408 | PyErr_Format(PyExc_TypeError, "startswith first arg must be bytes " |
| 1409 | "or a tuple of bytes, not %s", Py_TYPE(subobj)->tp_name); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1410 | return NULL; |
Ezio Melotti | ba42fd5 | 2011-04-26 06:09:45 +0300 | [diff] [blame] | 1411 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1412 | else |
| 1413 | return PyBool_FromLong(result); |
| 1414 | } |
| 1415 | |
| 1416 | PyDoc_STRVAR(endswith__doc__, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 1417 | "B.endswith(suffix[, start[, end]]) -> bool\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1418 | \n\ |
| 1419 | Return True if B ends with the specified suffix, False otherwise.\n\ |
| 1420 | With optional start, test B beginning at that position.\n\ |
| 1421 | With optional end, stop comparing B at that position.\n\ |
Ezio Melotti | ba42fd5 | 2011-04-26 06:09:45 +0300 | [diff] [blame] | 1422 | suffix can also be a tuple of bytes to try."); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1423 | |
| 1424 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1425 | bytearray_endswith(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1426 | { |
| 1427 | Py_ssize_t start = 0; |
| 1428 | Py_ssize_t end = PY_SSIZE_T_MAX; |
| 1429 | PyObject *subobj; |
| 1430 | int result; |
| 1431 | |
Jesus Cea | ac45150 | 2011-04-20 17:09:23 +0200 | [diff] [blame] | 1432 | if (!stringlib_parse_args_finds("endswith", args, &subobj, &start, &end)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1433 | return NULL; |
| 1434 | if (PyTuple_Check(subobj)) { |
| 1435 | Py_ssize_t i; |
| 1436 | for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) { |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1437 | result = _bytearray_tailmatch(self, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1438 | PyTuple_GET_ITEM(subobj, i), |
| 1439 | start, end, +1); |
| 1440 | if (result == -1) |
| 1441 | return NULL; |
| 1442 | else if (result) { |
| 1443 | Py_RETURN_TRUE; |
| 1444 | } |
| 1445 | } |
| 1446 | Py_RETURN_FALSE; |
| 1447 | } |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1448 | result = _bytearray_tailmatch(self, subobj, start, end, +1); |
Ezio Melotti | ba42fd5 | 2011-04-26 06:09:45 +0300 | [diff] [blame] | 1449 | if (result == -1) { |
| 1450 | if (PyErr_ExceptionMatches(PyExc_TypeError)) |
| 1451 | PyErr_Format(PyExc_TypeError, "endswith first arg must be bytes or " |
| 1452 | "a tuple of bytes, not %s", Py_TYPE(subobj)->tp_name); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1453 | return NULL; |
Ezio Melotti | ba42fd5 | 2011-04-26 06:09:45 +0300 | [diff] [blame] | 1454 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1455 | else |
| 1456 | return PyBool_FromLong(result); |
| 1457 | } |
| 1458 | |
| 1459 | |
| 1460 | PyDoc_STRVAR(translate__doc__, |
| 1461 | "B.translate(table[, deletechars]) -> bytearray\n\ |
| 1462 | \n\ |
| 1463 | Return a copy of B, where all characters occurring in the\n\ |
| 1464 | optional argument deletechars are removed, and the remaining\n\ |
| 1465 | characters have been mapped through the given translation\n\ |
| 1466 | table, which must be a bytes object of length 256."); |
| 1467 | |
| 1468 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1469 | bytearray_translate(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1470 | { |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 1471 | char *input, *output; |
| 1472 | const char *table; |
| 1473 | Py_ssize_t i, c; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1474 | PyObject *input_obj = (PyObject*)self; |
| 1475 | const char *output_start; |
| 1476 | Py_ssize_t inlen; |
Georg Brandl | ccc47b6 | 2008-12-28 11:44:14 +0000 | [diff] [blame] | 1477 | PyObject *result = NULL; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1478 | int trans_table[256]; |
Georg Brandl | ccc47b6 | 2008-12-28 11:44:14 +0000 | [diff] [blame] | 1479 | PyObject *tableobj = NULL, *delobj = NULL; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1480 | Py_buffer vtable, vdel; |
| 1481 | |
| 1482 | if (!PyArg_UnpackTuple(args, "translate", 1, 2, |
| 1483 | &tableobj, &delobj)) |
| 1484 | return NULL; |
| 1485 | |
Georg Brandl | ccc47b6 | 2008-12-28 11:44:14 +0000 | [diff] [blame] | 1486 | if (tableobj == Py_None) { |
| 1487 | table = NULL; |
| 1488 | tableobj = NULL; |
| 1489 | } else if (_getbuffer(tableobj, &vtable) < 0) { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1490 | return NULL; |
Georg Brandl | ccc47b6 | 2008-12-28 11:44:14 +0000 | [diff] [blame] | 1491 | } else { |
| 1492 | if (vtable.len != 256) { |
| 1493 | PyErr_SetString(PyExc_ValueError, |
| 1494 | "translation table must be 256 characters long"); |
Georg Brandl | 953152f | 2009-07-22 12:03:59 +0000 | [diff] [blame] | 1495 | PyBuffer_Release(&vtable); |
| 1496 | return NULL; |
Georg Brandl | ccc47b6 | 2008-12-28 11:44:14 +0000 | [diff] [blame] | 1497 | } |
| 1498 | table = (const char*)vtable.buf; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1499 | } |
| 1500 | |
| 1501 | if (delobj != NULL) { |
| 1502 | if (_getbuffer(delobj, &vdel) < 0) { |
Georg Brandl | 953152f | 2009-07-22 12:03:59 +0000 | [diff] [blame] | 1503 | if (tableobj != NULL) |
| 1504 | PyBuffer_Release(&vtable); |
| 1505 | return NULL; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1506 | } |
| 1507 | } |
| 1508 | else { |
| 1509 | vdel.buf = NULL; |
| 1510 | vdel.len = 0; |
| 1511 | } |
| 1512 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1513 | inlen = PyByteArray_GET_SIZE(input_obj); |
| 1514 | result = PyByteArray_FromStringAndSize((char *)NULL, inlen); |
| 1515 | if (result == NULL) |
| 1516 | goto done; |
| 1517 | output_start = output = PyByteArray_AsString(result); |
| 1518 | input = PyByteArray_AS_STRING(input_obj); |
| 1519 | |
Georg Brandl | ccc47b6 | 2008-12-28 11:44:14 +0000 | [diff] [blame] | 1520 | if (vdel.len == 0 && table != NULL) { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1521 | /* If no deletions are required, use faster code */ |
| 1522 | for (i = inlen; --i >= 0; ) { |
| 1523 | c = Py_CHARMASK(*input++); |
Benjamin Peterson | 0f3641c | 2008-11-19 22:05:52 +0000 | [diff] [blame] | 1524 | *output++ = table[c]; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1525 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1526 | goto done; |
| 1527 | } |
Georg Brandl | ccc47b6 | 2008-12-28 11:44:14 +0000 | [diff] [blame] | 1528 | |
| 1529 | if (table == NULL) { |
| 1530 | for (i = 0; i < 256; i++) |
| 1531 | trans_table[i] = Py_CHARMASK(i); |
| 1532 | } else { |
| 1533 | for (i = 0; i < 256; i++) |
| 1534 | trans_table[i] = Py_CHARMASK(table[i]); |
| 1535 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1536 | |
| 1537 | for (i = 0; i < vdel.len; i++) |
| 1538 | trans_table[(int) Py_CHARMASK( ((unsigned char*)vdel.buf)[i] )] = -1; |
| 1539 | |
| 1540 | for (i = inlen; --i >= 0; ) { |
| 1541 | c = Py_CHARMASK(*input++); |
| 1542 | if (trans_table[c] != -1) |
| 1543 | if (Py_CHARMASK(*output++ = (char)trans_table[c]) == c) |
| 1544 | continue; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1545 | } |
| 1546 | /* Fix the size of the resulting string */ |
| 1547 | if (inlen > 0) |
Christian Heimes | c731bbe | 2013-07-21 02:04:35 +0200 | [diff] [blame] | 1548 | if (PyByteArray_Resize(result, output - output_start) < 0) { |
| 1549 | Py_CLEAR(result); |
| 1550 | goto done; |
| 1551 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1552 | |
| 1553 | done: |
Georg Brandl | ccc47b6 | 2008-12-28 11:44:14 +0000 | [diff] [blame] | 1554 | if (tableobj != NULL) |
| 1555 | PyBuffer_Release(&vtable); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1556 | if (delobj != NULL) |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 1557 | PyBuffer_Release(&vdel); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1558 | return result; |
| 1559 | } |
| 1560 | |
| 1561 | |
Georg Brandl | abc3877 | 2009-04-12 15:51:51 +0000 | [diff] [blame] | 1562 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 1563 | bytearray_maketrans(PyObject *null, PyObject *args) |
Georg Brandl | abc3877 | 2009-04-12 15:51:51 +0000 | [diff] [blame] | 1564 | { |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 1565 | return _Py_bytes_maketrans(args); |
Georg Brandl | abc3877 | 2009-04-12 15:51:51 +0000 | [diff] [blame] | 1566 | } |
| 1567 | |
| 1568 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1569 | /* find and count characters and substrings */ |
| 1570 | |
| 1571 | #define findchar(target, target_len, c) \ |
| 1572 | ((char *)memchr((const void *)(target), c, target_len)) |
| 1573 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1574 | |
Benjamin Peterson | 0f3641c | 2008-11-19 22:05:52 +0000 | [diff] [blame] | 1575 | /* Bytes ops must return a string, create a copy */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1576 | Py_LOCAL(PyByteArrayObject *) |
| 1577 | return_self(PyByteArrayObject *self) |
| 1578 | { |
Georg Brandl | 1e7217d | 2008-05-30 12:02:38 +0000 | [diff] [blame] | 1579 | /* always return a new bytearray */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1580 | return (PyByteArrayObject *)PyByteArray_FromStringAndSize( |
| 1581 | PyByteArray_AS_STRING(self), |
| 1582 | PyByteArray_GET_SIZE(self)); |
| 1583 | } |
| 1584 | |
| 1585 | Py_LOCAL_INLINE(Py_ssize_t) |
| 1586 | countchar(const char *target, Py_ssize_t target_len, char c, Py_ssize_t maxcount) |
| 1587 | { |
| 1588 | Py_ssize_t count=0; |
| 1589 | const char *start=target; |
| 1590 | const char *end=target+target_len; |
| 1591 | |
| 1592 | while ( (start=findchar(start, end-start, c)) != NULL ) { |
| 1593 | count++; |
| 1594 | if (count >= maxcount) |
| 1595 | break; |
| 1596 | start += 1; |
| 1597 | } |
| 1598 | return count; |
| 1599 | } |
| 1600 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1601 | |
| 1602 | /* Algorithms for different cases of string replacement */ |
| 1603 | |
| 1604 | /* len(self)>=1, from="", len(to)>=1, maxcount>=1 */ |
| 1605 | Py_LOCAL(PyByteArrayObject *) |
| 1606 | replace_interleave(PyByteArrayObject *self, |
| 1607 | const char *to_s, Py_ssize_t to_len, |
| 1608 | Py_ssize_t maxcount) |
| 1609 | { |
| 1610 | char *self_s, *result_s; |
| 1611 | Py_ssize_t self_len, result_len; |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1612 | Py_ssize_t count, i; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1613 | PyByteArrayObject *result; |
| 1614 | |
| 1615 | self_len = PyByteArray_GET_SIZE(self); |
| 1616 | |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1617 | /* 1 at the end plus 1 after every character; |
| 1618 | count = min(maxcount, self_len + 1) */ |
| 1619 | if (maxcount <= self_len) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1620 | count = maxcount; |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1621 | else |
| 1622 | /* Can't overflow: self_len + 1 <= maxcount <= PY_SSIZE_T_MAX. */ |
| 1623 | count = self_len + 1; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1624 | |
| 1625 | /* Check for overflow */ |
| 1626 | /* result_len = count * to_len + self_len; */ |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1627 | assert(count > 0); |
| 1628 | if (to_len > (PY_SSIZE_T_MAX - self_len) / count) { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1629 | PyErr_SetString(PyExc_OverflowError, |
| 1630 | "replace string is too long"); |
| 1631 | return NULL; |
| 1632 | } |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1633 | result_len = count * to_len + self_len; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1634 | |
| 1635 | if (! (result = (PyByteArrayObject *) |
| 1636 | PyByteArray_FromStringAndSize(NULL, result_len)) ) |
| 1637 | return NULL; |
| 1638 | |
| 1639 | self_s = PyByteArray_AS_STRING(self); |
| 1640 | result_s = PyByteArray_AS_STRING(result); |
| 1641 | |
| 1642 | /* TODO: special case single character, which doesn't need memcpy */ |
| 1643 | |
| 1644 | /* Lay the first one down (guaranteed this will occur) */ |
| 1645 | Py_MEMCPY(result_s, to_s, to_len); |
| 1646 | result_s += to_len; |
| 1647 | count -= 1; |
| 1648 | |
| 1649 | for (i=0; i<count; i++) { |
| 1650 | *result_s++ = *self_s++; |
| 1651 | Py_MEMCPY(result_s, to_s, to_len); |
| 1652 | result_s += to_len; |
| 1653 | } |
| 1654 | |
| 1655 | /* Copy the rest of the original string */ |
| 1656 | Py_MEMCPY(result_s, self_s, self_len-i); |
| 1657 | |
| 1658 | return result; |
| 1659 | } |
| 1660 | |
| 1661 | /* Special case for deleting a single character */ |
| 1662 | /* len(self)>=1, len(from)==1, to="", maxcount>=1 */ |
| 1663 | Py_LOCAL(PyByteArrayObject *) |
| 1664 | replace_delete_single_character(PyByteArrayObject *self, |
| 1665 | char from_c, Py_ssize_t maxcount) |
| 1666 | { |
| 1667 | char *self_s, *result_s; |
| 1668 | char *start, *next, *end; |
| 1669 | Py_ssize_t self_len, result_len; |
| 1670 | Py_ssize_t count; |
| 1671 | PyByteArrayObject *result; |
| 1672 | |
| 1673 | self_len = PyByteArray_GET_SIZE(self); |
| 1674 | self_s = PyByteArray_AS_STRING(self); |
| 1675 | |
| 1676 | count = countchar(self_s, self_len, from_c, maxcount); |
| 1677 | if (count == 0) { |
| 1678 | return return_self(self); |
| 1679 | } |
| 1680 | |
| 1681 | result_len = self_len - count; /* from_len == 1 */ |
| 1682 | assert(result_len>=0); |
| 1683 | |
| 1684 | if ( (result = (PyByteArrayObject *) |
| 1685 | PyByteArray_FromStringAndSize(NULL, result_len)) == NULL) |
| 1686 | return NULL; |
| 1687 | result_s = PyByteArray_AS_STRING(result); |
| 1688 | |
| 1689 | start = self_s; |
| 1690 | end = self_s + self_len; |
| 1691 | while (count-- > 0) { |
| 1692 | next = findchar(start, end-start, from_c); |
| 1693 | if (next == NULL) |
| 1694 | break; |
| 1695 | Py_MEMCPY(result_s, start, next-start); |
| 1696 | result_s += (next-start); |
| 1697 | start = next+1; |
| 1698 | } |
| 1699 | Py_MEMCPY(result_s, start, end-start); |
| 1700 | |
| 1701 | return result; |
| 1702 | } |
| 1703 | |
| 1704 | /* len(self)>=1, len(from)>=2, to="", maxcount>=1 */ |
| 1705 | |
| 1706 | Py_LOCAL(PyByteArrayObject *) |
| 1707 | replace_delete_substring(PyByteArrayObject *self, |
| 1708 | const char *from_s, Py_ssize_t from_len, |
| 1709 | Py_ssize_t maxcount) |
| 1710 | { |
| 1711 | char *self_s, *result_s; |
| 1712 | char *start, *next, *end; |
| 1713 | Py_ssize_t self_len, result_len; |
| 1714 | Py_ssize_t count, offset; |
| 1715 | PyByteArrayObject *result; |
| 1716 | |
| 1717 | self_len = PyByteArray_GET_SIZE(self); |
| 1718 | self_s = PyByteArray_AS_STRING(self); |
| 1719 | |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1720 | count = stringlib_count(self_s, self_len, |
| 1721 | from_s, from_len, |
| 1722 | maxcount); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1723 | |
| 1724 | if (count == 0) { |
| 1725 | /* no matches */ |
| 1726 | return return_self(self); |
| 1727 | } |
| 1728 | |
| 1729 | result_len = self_len - (count * from_len); |
| 1730 | assert (result_len>=0); |
| 1731 | |
| 1732 | if ( (result = (PyByteArrayObject *) |
| 1733 | PyByteArray_FromStringAndSize(NULL, result_len)) == NULL ) |
| 1734 | return NULL; |
| 1735 | |
| 1736 | result_s = PyByteArray_AS_STRING(result); |
| 1737 | |
| 1738 | start = self_s; |
| 1739 | end = self_s + self_len; |
| 1740 | while (count-- > 0) { |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1741 | offset = stringlib_find(start, end-start, |
| 1742 | from_s, from_len, |
| 1743 | 0); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1744 | if (offset == -1) |
| 1745 | break; |
| 1746 | next = start + offset; |
| 1747 | |
| 1748 | Py_MEMCPY(result_s, start, next-start); |
| 1749 | |
| 1750 | result_s += (next-start); |
| 1751 | start = next+from_len; |
| 1752 | } |
| 1753 | Py_MEMCPY(result_s, start, end-start); |
| 1754 | return result; |
| 1755 | } |
| 1756 | |
| 1757 | /* len(self)>=1, len(from)==len(to)==1, maxcount>=1 */ |
| 1758 | Py_LOCAL(PyByteArrayObject *) |
| 1759 | replace_single_character_in_place(PyByteArrayObject *self, |
| 1760 | char from_c, char to_c, |
| 1761 | Py_ssize_t maxcount) |
| 1762 | { |
Antoine Pitrou | d118856 | 2010-06-09 16:38:55 +0000 | [diff] [blame] | 1763 | char *self_s, *result_s, *start, *end, *next; |
| 1764 | Py_ssize_t self_len; |
| 1765 | PyByteArrayObject *result; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1766 | |
Antoine Pitrou | d118856 | 2010-06-09 16:38:55 +0000 | [diff] [blame] | 1767 | /* The result string will be the same size */ |
| 1768 | self_s = PyByteArray_AS_STRING(self); |
| 1769 | self_len = PyByteArray_GET_SIZE(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1770 | |
Antoine Pitrou | d118856 | 2010-06-09 16:38:55 +0000 | [diff] [blame] | 1771 | next = findchar(self_s, self_len, from_c); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1772 | |
Antoine Pitrou | d118856 | 2010-06-09 16:38:55 +0000 | [diff] [blame] | 1773 | if (next == NULL) { |
| 1774 | /* No matches; return the original bytes */ |
| 1775 | return return_self(self); |
| 1776 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1777 | |
Antoine Pitrou | d118856 | 2010-06-09 16:38:55 +0000 | [diff] [blame] | 1778 | /* Need to make a new bytes */ |
| 1779 | result = (PyByteArrayObject *) PyByteArray_FromStringAndSize(NULL, self_len); |
| 1780 | if (result == NULL) |
| 1781 | return NULL; |
| 1782 | result_s = PyByteArray_AS_STRING(result); |
| 1783 | Py_MEMCPY(result_s, self_s, self_len); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1784 | |
Antoine Pitrou | d118856 | 2010-06-09 16:38:55 +0000 | [diff] [blame] | 1785 | /* change everything in-place, starting with this one */ |
| 1786 | start = result_s + (next-self_s); |
| 1787 | *start = to_c; |
| 1788 | start++; |
| 1789 | end = result_s + self_len; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1790 | |
Antoine Pitrou | d118856 | 2010-06-09 16:38:55 +0000 | [diff] [blame] | 1791 | while (--maxcount > 0) { |
| 1792 | next = findchar(start, end-start, from_c); |
| 1793 | if (next == NULL) |
| 1794 | break; |
| 1795 | *next = to_c; |
| 1796 | start = next+1; |
| 1797 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1798 | |
Antoine Pitrou | d118856 | 2010-06-09 16:38:55 +0000 | [diff] [blame] | 1799 | return result; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1800 | } |
| 1801 | |
| 1802 | /* len(self)>=1, len(from)==len(to)>=2, maxcount>=1 */ |
| 1803 | Py_LOCAL(PyByteArrayObject *) |
| 1804 | replace_substring_in_place(PyByteArrayObject *self, |
| 1805 | const char *from_s, Py_ssize_t from_len, |
| 1806 | const char *to_s, Py_ssize_t to_len, |
| 1807 | Py_ssize_t maxcount) |
| 1808 | { |
| 1809 | char *result_s, *start, *end; |
| 1810 | char *self_s; |
| 1811 | Py_ssize_t self_len, offset; |
| 1812 | PyByteArrayObject *result; |
| 1813 | |
| 1814 | /* The result bytes will be the same size */ |
| 1815 | |
| 1816 | self_s = PyByteArray_AS_STRING(self); |
| 1817 | self_len = PyByteArray_GET_SIZE(self); |
| 1818 | |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1819 | offset = stringlib_find(self_s, self_len, |
| 1820 | from_s, from_len, |
| 1821 | 0); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1822 | if (offset == -1) { |
| 1823 | /* No matches; return the original bytes */ |
| 1824 | return return_self(self); |
| 1825 | } |
| 1826 | |
| 1827 | /* Need to make a new bytes */ |
| 1828 | result = (PyByteArrayObject *) PyByteArray_FromStringAndSize(NULL, self_len); |
| 1829 | if (result == NULL) |
| 1830 | return NULL; |
| 1831 | result_s = PyByteArray_AS_STRING(result); |
| 1832 | Py_MEMCPY(result_s, self_s, self_len); |
| 1833 | |
| 1834 | /* change everything in-place, starting with this one */ |
| 1835 | start = result_s + offset; |
| 1836 | Py_MEMCPY(start, to_s, from_len); |
| 1837 | start += from_len; |
| 1838 | end = result_s + self_len; |
| 1839 | |
| 1840 | while ( --maxcount > 0) { |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1841 | offset = stringlib_find(start, end-start, |
| 1842 | from_s, from_len, |
| 1843 | 0); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1844 | if (offset==-1) |
| 1845 | break; |
| 1846 | Py_MEMCPY(start+offset, to_s, from_len); |
| 1847 | start += offset+from_len; |
| 1848 | } |
| 1849 | |
| 1850 | return result; |
| 1851 | } |
| 1852 | |
| 1853 | /* len(self)>=1, len(from)==1, len(to)>=2, maxcount>=1 */ |
| 1854 | Py_LOCAL(PyByteArrayObject *) |
| 1855 | replace_single_character(PyByteArrayObject *self, |
| 1856 | char from_c, |
| 1857 | const char *to_s, Py_ssize_t to_len, |
| 1858 | Py_ssize_t maxcount) |
| 1859 | { |
| 1860 | char *self_s, *result_s; |
| 1861 | char *start, *next, *end; |
| 1862 | Py_ssize_t self_len, result_len; |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1863 | Py_ssize_t count; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1864 | PyByteArrayObject *result; |
| 1865 | |
| 1866 | self_s = PyByteArray_AS_STRING(self); |
| 1867 | self_len = PyByteArray_GET_SIZE(self); |
| 1868 | |
| 1869 | count = countchar(self_s, self_len, from_c, maxcount); |
| 1870 | if (count == 0) { |
| 1871 | /* no matches, return unchanged */ |
| 1872 | return return_self(self); |
| 1873 | } |
| 1874 | |
| 1875 | /* use the difference between current and new, hence the "-1" */ |
| 1876 | /* result_len = self_len + count * (to_len-1) */ |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1877 | assert(count > 0); |
| 1878 | if (to_len - 1 > (PY_SSIZE_T_MAX - self_len) / count) { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1879 | PyErr_SetString(PyExc_OverflowError, "replace bytes is too long"); |
| 1880 | return NULL; |
| 1881 | } |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1882 | result_len = self_len + count * (to_len - 1); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1883 | |
| 1884 | if ( (result = (PyByteArrayObject *) |
| 1885 | PyByteArray_FromStringAndSize(NULL, result_len)) == NULL) |
| 1886 | return NULL; |
| 1887 | result_s = PyByteArray_AS_STRING(result); |
| 1888 | |
| 1889 | start = self_s; |
| 1890 | end = self_s + self_len; |
| 1891 | while (count-- > 0) { |
| 1892 | next = findchar(start, end-start, from_c); |
| 1893 | if (next == NULL) |
| 1894 | break; |
| 1895 | |
| 1896 | if (next == start) { |
| 1897 | /* replace with the 'to' */ |
| 1898 | Py_MEMCPY(result_s, to_s, to_len); |
| 1899 | result_s += to_len; |
| 1900 | start += 1; |
| 1901 | } else { |
| 1902 | /* copy the unchanged old then the 'to' */ |
| 1903 | Py_MEMCPY(result_s, start, next-start); |
| 1904 | result_s += (next-start); |
| 1905 | Py_MEMCPY(result_s, to_s, to_len); |
| 1906 | result_s += to_len; |
| 1907 | start = next+1; |
| 1908 | } |
| 1909 | } |
| 1910 | /* Copy the remainder of the remaining bytes */ |
| 1911 | Py_MEMCPY(result_s, start, end-start); |
| 1912 | |
| 1913 | return result; |
| 1914 | } |
| 1915 | |
| 1916 | /* len(self)>=1, len(from)>=2, len(to)>=2, maxcount>=1 */ |
| 1917 | Py_LOCAL(PyByteArrayObject *) |
| 1918 | replace_substring(PyByteArrayObject *self, |
| 1919 | const char *from_s, Py_ssize_t from_len, |
| 1920 | const char *to_s, Py_ssize_t to_len, |
| 1921 | Py_ssize_t maxcount) |
| 1922 | { |
| 1923 | char *self_s, *result_s; |
| 1924 | char *start, *next, *end; |
| 1925 | Py_ssize_t self_len, result_len; |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1926 | Py_ssize_t count, offset; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1927 | PyByteArrayObject *result; |
| 1928 | |
| 1929 | self_s = PyByteArray_AS_STRING(self); |
| 1930 | self_len = PyByteArray_GET_SIZE(self); |
| 1931 | |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1932 | count = stringlib_count(self_s, self_len, |
| 1933 | from_s, from_len, |
| 1934 | maxcount); |
| 1935 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1936 | if (count == 0) { |
| 1937 | /* no matches, return unchanged */ |
| 1938 | return return_self(self); |
| 1939 | } |
| 1940 | |
| 1941 | /* Check for overflow */ |
| 1942 | /* result_len = self_len + count * (to_len-from_len) */ |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1943 | assert(count > 0); |
| 1944 | if (to_len - from_len > (PY_SSIZE_T_MAX - self_len) / count) { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1945 | PyErr_SetString(PyExc_OverflowError, "replace bytes is too long"); |
| 1946 | return NULL; |
| 1947 | } |
Mark Dickinson | cf940c7 | 2010-08-10 18:35:01 +0000 | [diff] [blame] | 1948 | result_len = self_len + count * (to_len - from_len); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1949 | |
| 1950 | if ( (result = (PyByteArrayObject *) |
| 1951 | PyByteArray_FromStringAndSize(NULL, result_len)) == NULL) |
| 1952 | return NULL; |
| 1953 | result_s = PyByteArray_AS_STRING(result); |
| 1954 | |
| 1955 | start = self_s; |
| 1956 | end = self_s + self_len; |
| 1957 | while (count-- > 0) { |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 1958 | offset = stringlib_find(start, end-start, |
| 1959 | from_s, from_len, |
| 1960 | 0); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 1961 | if (offset == -1) |
| 1962 | break; |
| 1963 | next = start+offset; |
| 1964 | if (next == start) { |
| 1965 | /* replace with the 'to' */ |
| 1966 | Py_MEMCPY(result_s, to_s, to_len); |
| 1967 | result_s += to_len; |
| 1968 | start += from_len; |
| 1969 | } else { |
| 1970 | /* copy the unchanged old then the 'to' */ |
| 1971 | Py_MEMCPY(result_s, start, next-start); |
| 1972 | result_s += (next-start); |
| 1973 | Py_MEMCPY(result_s, to_s, to_len); |
| 1974 | result_s += to_len; |
| 1975 | start = next+from_len; |
| 1976 | } |
| 1977 | } |
| 1978 | /* Copy the remainder of the remaining bytes */ |
| 1979 | Py_MEMCPY(result_s, start, end-start); |
| 1980 | |
| 1981 | return result; |
| 1982 | } |
| 1983 | |
| 1984 | |
| 1985 | Py_LOCAL(PyByteArrayObject *) |
| 1986 | replace(PyByteArrayObject *self, |
| 1987 | const char *from_s, Py_ssize_t from_len, |
| 1988 | const char *to_s, Py_ssize_t to_len, |
| 1989 | Py_ssize_t maxcount) |
| 1990 | { |
| 1991 | if (maxcount < 0) { |
| 1992 | maxcount = PY_SSIZE_T_MAX; |
| 1993 | } else if (maxcount == 0 || PyByteArray_GET_SIZE(self) == 0) { |
| 1994 | /* nothing to do; return the original bytes */ |
| 1995 | return return_self(self); |
| 1996 | } |
| 1997 | |
| 1998 | if (maxcount == 0 || |
| 1999 | (from_len == 0 && to_len == 0)) { |
| 2000 | /* nothing to do; return the original bytes */ |
| 2001 | return return_self(self); |
| 2002 | } |
| 2003 | |
| 2004 | /* Handle zero-length special cases */ |
| 2005 | |
| 2006 | if (from_len == 0) { |
| 2007 | /* insert the 'to' bytes everywhere. */ |
| 2008 | /* >>> "Python".replace("", ".") */ |
| 2009 | /* '.P.y.t.h.o.n.' */ |
| 2010 | return replace_interleave(self, to_s, to_len, maxcount); |
| 2011 | } |
| 2012 | |
| 2013 | /* Except for "".replace("", "A") == "A" there is no way beyond this */ |
| 2014 | /* point for an empty self bytes to generate a non-empty bytes */ |
| 2015 | /* Special case so the remaining code always gets a non-empty bytes */ |
| 2016 | if (PyByteArray_GET_SIZE(self) == 0) { |
| 2017 | return return_self(self); |
| 2018 | } |
| 2019 | |
| 2020 | if (to_len == 0) { |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2021 | /* delete all occurrences of 'from' bytes */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2022 | if (from_len == 1) { |
| 2023 | return replace_delete_single_character( |
| 2024 | self, from_s[0], maxcount); |
| 2025 | } else { |
| 2026 | return replace_delete_substring(self, from_s, from_len, maxcount); |
| 2027 | } |
| 2028 | } |
| 2029 | |
| 2030 | /* Handle special case where both bytes have the same length */ |
| 2031 | |
| 2032 | if (from_len == to_len) { |
| 2033 | if (from_len == 1) { |
| 2034 | return replace_single_character_in_place( |
| 2035 | self, |
| 2036 | from_s[0], |
| 2037 | to_s[0], |
| 2038 | maxcount); |
| 2039 | } else { |
| 2040 | return replace_substring_in_place( |
| 2041 | self, from_s, from_len, to_s, to_len, maxcount); |
| 2042 | } |
| 2043 | } |
| 2044 | |
| 2045 | /* Otherwise use the more generic algorithms */ |
| 2046 | if (from_len == 1) { |
| 2047 | return replace_single_character(self, from_s[0], |
| 2048 | to_s, to_len, maxcount); |
| 2049 | } else { |
| 2050 | /* len('from')>=2, len('to')>=1 */ |
| 2051 | return replace_substring(self, from_s, from_len, to_s, to_len, maxcount); |
| 2052 | } |
| 2053 | } |
| 2054 | |
| 2055 | |
| 2056 | PyDoc_STRVAR(replace__doc__, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2057 | "B.replace(old, new[, count]) -> bytearray\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2058 | \n\ |
| 2059 | Return a copy of B with all occurrences of subsection\n\ |
| 2060 | old replaced by new. If the optional argument count is\n\ |
| 2061 | given, only the first count occurrences are replaced."); |
| 2062 | |
| 2063 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2064 | bytearray_replace(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2065 | { |
| 2066 | Py_ssize_t count = -1; |
| 2067 | PyObject *from, *to, *res; |
| 2068 | Py_buffer vfrom, vto; |
| 2069 | |
| 2070 | if (!PyArg_ParseTuple(args, "OO|n:replace", &from, &to, &count)) |
| 2071 | return NULL; |
| 2072 | |
| 2073 | if (_getbuffer(from, &vfrom) < 0) |
| 2074 | return NULL; |
| 2075 | if (_getbuffer(to, &vto) < 0) { |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 2076 | PyBuffer_Release(&vfrom); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2077 | return NULL; |
| 2078 | } |
| 2079 | |
| 2080 | res = (PyObject *)replace((PyByteArrayObject *) self, |
| 2081 | vfrom.buf, vfrom.len, |
| 2082 | vto.buf, vto.len, count); |
| 2083 | |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 2084 | PyBuffer_Release(&vfrom); |
| 2085 | PyBuffer_Release(&vto); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2086 | return res; |
| 2087 | } |
| 2088 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2089 | PyDoc_STRVAR(split__doc__, |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2090 | "B.split(sep=None, maxsplit=-1) -> list of bytearrays\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2091 | \n\ |
| 2092 | Return a list of the sections in B, using sep as the delimiter.\n\ |
| 2093 | If sep is not given, B is split on ASCII whitespace characters\n\ |
| 2094 | (space, tab, return, newline, formfeed, vertical tab).\n\ |
| 2095 | If maxsplit is given, at most maxsplit splits are done."); |
| 2096 | |
| 2097 | static PyObject * |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2098 | bytearray_split(PyByteArrayObject *self, PyObject *args, PyObject *kwds) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2099 | { |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2100 | static char *kwlist[] = {"sep", "maxsplit", 0}; |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2101 | Py_ssize_t len = PyByteArray_GET_SIZE(self), n; |
| 2102 | Py_ssize_t maxsplit = -1; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2103 | const char *s = PyByteArray_AS_STRING(self), *sub; |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2104 | PyObject *list, *subobj = Py_None; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2105 | Py_buffer vsub; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2106 | |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2107 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|On:split", |
| 2108 | kwlist, &subobj, &maxsplit)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2109 | return NULL; |
| 2110 | if (maxsplit < 0) |
| 2111 | maxsplit = PY_SSIZE_T_MAX; |
| 2112 | |
| 2113 | if (subobj == Py_None) |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2114 | return stringlib_split_whitespace((PyObject*) self, s, len, maxsplit); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2115 | |
| 2116 | if (_getbuffer(subobj, &vsub) < 0) |
| 2117 | return NULL; |
| 2118 | sub = vsub.buf; |
| 2119 | n = vsub.len; |
| 2120 | |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2121 | list = stringlib_split( |
| 2122 | (PyObject*) self, s, len, sub, n, maxsplit |
| 2123 | ); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 2124 | PyBuffer_Release(&vsub); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2125 | return list; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2126 | } |
| 2127 | |
| 2128 | PyDoc_STRVAR(partition__doc__, |
| 2129 | "B.partition(sep) -> (head, sep, tail)\n\ |
| 2130 | \n\ |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2131 | Search for the separator sep in B, and return the part before it,\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2132 | the separator itself, and the part after it. If the separator is not\n\ |
| 2133 | found, returns B and two empty bytearray objects."); |
| 2134 | |
| 2135 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2136 | bytearray_partition(PyByteArrayObject *self, PyObject *sep_obj) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2137 | { |
| 2138 | PyObject *bytesep, *result; |
| 2139 | |
| 2140 | bytesep = PyByteArray_FromObject(sep_obj); |
| 2141 | if (! bytesep) |
| 2142 | return NULL; |
| 2143 | |
| 2144 | result = stringlib_partition( |
| 2145 | (PyObject*) self, |
| 2146 | PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self), |
| 2147 | bytesep, |
| 2148 | PyByteArray_AS_STRING(bytesep), PyByteArray_GET_SIZE(bytesep) |
| 2149 | ); |
| 2150 | |
| 2151 | Py_DECREF(bytesep); |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2152 | return result; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2153 | } |
| 2154 | |
| 2155 | PyDoc_STRVAR(rpartition__doc__, |
Ezio Melotti | 5b2b242 | 2010-01-25 11:58:28 +0000 | [diff] [blame] | 2156 | "B.rpartition(sep) -> (head, sep, tail)\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2157 | \n\ |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2158 | Search for the separator sep in B, starting at the end of B,\n\ |
| 2159 | and return the part before it, the separator itself, and the\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2160 | part after it. If the separator is not found, returns two empty\n\ |
| 2161 | bytearray objects and B."); |
| 2162 | |
| 2163 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2164 | bytearray_rpartition(PyByteArrayObject *self, PyObject *sep_obj) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2165 | { |
| 2166 | PyObject *bytesep, *result; |
| 2167 | |
| 2168 | bytesep = PyByteArray_FromObject(sep_obj); |
| 2169 | if (! bytesep) |
| 2170 | return NULL; |
| 2171 | |
| 2172 | result = stringlib_rpartition( |
| 2173 | (PyObject*) self, |
| 2174 | PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self), |
| 2175 | bytesep, |
| 2176 | PyByteArray_AS_STRING(bytesep), PyByteArray_GET_SIZE(bytesep) |
| 2177 | ); |
| 2178 | |
| 2179 | Py_DECREF(bytesep); |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2180 | return result; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2181 | } |
| 2182 | |
| 2183 | PyDoc_STRVAR(rsplit__doc__, |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2184 | "B.rsplit(sep=None, maxsplit=-1) -> list of bytearrays\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2185 | \n\ |
| 2186 | Return a list of the sections in B, using sep as the delimiter,\n\ |
| 2187 | starting at the end of B and working to the front.\n\ |
| 2188 | If sep is not given, B is split on ASCII whitespace characters\n\ |
| 2189 | (space, tab, return, newline, formfeed, vertical tab).\n\ |
| 2190 | If maxsplit is given, at most maxsplit splits are done."); |
| 2191 | |
| 2192 | static PyObject * |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2193 | bytearray_rsplit(PyByteArrayObject *self, PyObject *args, PyObject *kwds) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2194 | { |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2195 | static char *kwlist[] = {"sep", "maxsplit", 0}; |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2196 | Py_ssize_t len = PyByteArray_GET_SIZE(self), n; |
| 2197 | Py_ssize_t maxsplit = -1; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2198 | const char *s = PyByteArray_AS_STRING(self), *sub; |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2199 | PyObject *list, *subobj = Py_None; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2200 | Py_buffer vsub; |
| 2201 | |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2202 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|On:rsplit", |
| 2203 | kwlist, &subobj, &maxsplit)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2204 | return NULL; |
| 2205 | if (maxsplit < 0) |
| 2206 | maxsplit = PY_SSIZE_T_MAX; |
| 2207 | |
| 2208 | if (subobj == Py_None) |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2209 | return stringlib_rsplit_whitespace((PyObject*) self, s, len, maxsplit); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2210 | |
| 2211 | if (_getbuffer(subobj, &vsub) < 0) |
| 2212 | return NULL; |
| 2213 | sub = vsub.buf; |
| 2214 | n = vsub.len; |
| 2215 | |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2216 | list = stringlib_rsplit( |
| 2217 | (PyObject*) self, s, len, sub, n, maxsplit |
| 2218 | ); |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 2219 | PyBuffer_Release(&vsub); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2220 | return list; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2221 | } |
| 2222 | |
| 2223 | PyDoc_STRVAR(reverse__doc__, |
| 2224 | "B.reverse() -> None\n\ |
| 2225 | \n\ |
| 2226 | Reverse the order of the values in B in place."); |
| 2227 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2228 | bytearray_reverse(PyByteArrayObject *self, PyObject *unused) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2229 | { |
| 2230 | char swap, *head, *tail; |
| 2231 | Py_ssize_t i, j, n = Py_SIZE(self); |
| 2232 | |
| 2233 | j = n / 2; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2234 | head = PyByteArray_AS_STRING(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2235 | tail = head + n - 1; |
| 2236 | for (i = 0; i < j; i++) { |
| 2237 | swap = *head; |
| 2238 | *head++ = *tail; |
| 2239 | *tail-- = swap; |
| 2240 | } |
| 2241 | |
| 2242 | Py_RETURN_NONE; |
| 2243 | } |
| 2244 | |
| 2245 | PyDoc_STRVAR(insert__doc__, |
| 2246 | "B.insert(index, int) -> None\n\ |
| 2247 | \n\ |
| 2248 | Insert a single item into the bytearray before the given index."); |
| 2249 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2250 | bytearray_insert(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2251 | { |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 2252 | PyObject *value; |
| 2253 | int ival; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2254 | Py_ssize_t where, n = Py_SIZE(self); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2255 | char *buf; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2256 | |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 2257 | if (!PyArg_ParseTuple(args, "nO:insert", &where, &value)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2258 | return NULL; |
| 2259 | |
| 2260 | if (n == PY_SSIZE_T_MAX) { |
| 2261 | PyErr_SetString(PyExc_OverflowError, |
Mark Dickinson | 2b6705f | 2009-09-06 10:34:47 +0000 | [diff] [blame] | 2262 | "cannot add more objects to bytearray"); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2263 | return NULL; |
| 2264 | } |
Georg Brandl | 9a54d7c | 2008-07-16 23:15:30 +0000 | [diff] [blame] | 2265 | if (!_getbytevalue(value, &ival)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2266 | return NULL; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2267 | if (PyByteArray_Resize((PyObject *)self, n + 1) < 0) |
| 2268 | return NULL; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2269 | buf = PyByteArray_AS_STRING(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2270 | |
| 2271 | if (where < 0) { |
| 2272 | where += n; |
| 2273 | if (where < 0) |
| 2274 | where = 0; |
| 2275 | } |
| 2276 | if (where > n) |
| 2277 | where = n; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2278 | memmove(buf + where + 1, buf + where, n - where); |
| 2279 | buf[where] = ival; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2280 | |
| 2281 | Py_RETURN_NONE; |
| 2282 | } |
| 2283 | |
| 2284 | PyDoc_STRVAR(append__doc__, |
| 2285 | "B.append(int) -> None\n\ |
| 2286 | \n\ |
| 2287 | Append a single item to the end of B."); |
| 2288 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2289 | bytearray_append(PyByteArrayObject *self, PyObject *arg) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2290 | { |
| 2291 | int value; |
| 2292 | Py_ssize_t n = Py_SIZE(self); |
| 2293 | |
| 2294 | if (! _getbytevalue(arg, &value)) |
| 2295 | return NULL; |
| 2296 | if (n == PY_SSIZE_T_MAX) { |
| 2297 | PyErr_SetString(PyExc_OverflowError, |
Mark Dickinson | 2b6705f | 2009-09-06 10:34:47 +0000 | [diff] [blame] | 2298 | "cannot add more objects to bytearray"); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2299 | return NULL; |
| 2300 | } |
| 2301 | if (PyByteArray_Resize((PyObject *)self, n + 1) < 0) |
| 2302 | return NULL; |
| 2303 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2304 | PyByteArray_AS_STRING(self)[n] = value; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2305 | |
| 2306 | Py_RETURN_NONE; |
| 2307 | } |
| 2308 | |
| 2309 | PyDoc_STRVAR(extend__doc__, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2310 | "B.extend(iterable_of_ints) -> None\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2311 | \n\ |
| 2312 | Append all the elements from the iterator or sequence to the\n\ |
| 2313 | end of B."); |
| 2314 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2315 | bytearray_extend(PyByteArrayObject *self, PyObject *arg) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2316 | { |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2317 | PyObject *it, *item, *bytearray_obj; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2318 | Py_ssize_t buf_size = 0, len = 0; |
| 2319 | int value; |
| 2320 | char *buf; |
| 2321 | |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2322 | /* bytearray_setslice code only accepts something supporting PEP 3118. */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2323 | if (PyObject_CheckBuffer(arg)) { |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2324 | if (bytearray_setslice(self, Py_SIZE(self), Py_SIZE(self), arg) == -1) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2325 | return NULL; |
| 2326 | |
| 2327 | Py_RETURN_NONE; |
| 2328 | } |
| 2329 | |
| 2330 | it = PyObject_GetIter(arg); |
| 2331 | if (it == NULL) |
| 2332 | return NULL; |
| 2333 | |
Ezio Melotti | 42da663 | 2011-03-15 05:18:48 +0200 | [diff] [blame] | 2334 | /* Try to determine the length of the argument. 32 is arbitrary. */ |
Armin Ronacher | aa9a79d | 2012-10-06 14:03:24 +0200 | [diff] [blame] | 2335 | buf_size = PyObject_LengthHint(arg, 32); |
Benjamin Peterson | ef3e4c2 | 2009-04-11 19:48:14 +0000 | [diff] [blame] | 2336 | if (buf_size == -1) { |
| 2337 | Py_DECREF(it); |
| 2338 | return NULL; |
| 2339 | } |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2340 | |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2341 | bytearray_obj = PyByteArray_FromStringAndSize(NULL, buf_size); |
Antoine Pitrou | 58bb82e | 2012-04-01 16:05:46 +0200 | [diff] [blame] | 2342 | if (bytearray_obj == NULL) { |
| 2343 | Py_DECREF(it); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2344 | return NULL; |
Antoine Pitrou | 58bb82e | 2012-04-01 16:05:46 +0200 | [diff] [blame] | 2345 | } |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2346 | buf = PyByteArray_AS_STRING(bytearray_obj); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2347 | |
| 2348 | while ((item = PyIter_Next(it)) != NULL) { |
| 2349 | if (! _getbytevalue(item, &value)) { |
| 2350 | Py_DECREF(item); |
| 2351 | Py_DECREF(it); |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2352 | Py_DECREF(bytearray_obj); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2353 | return NULL; |
| 2354 | } |
| 2355 | buf[len++] = value; |
| 2356 | Py_DECREF(item); |
| 2357 | |
| 2358 | if (len >= buf_size) { |
| 2359 | buf_size = len + (len >> 1) + 1; |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2360 | if (PyByteArray_Resize((PyObject *)bytearray_obj, buf_size) < 0) { |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2361 | Py_DECREF(it); |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2362 | Py_DECREF(bytearray_obj); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2363 | return NULL; |
| 2364 | } |
| 2365 | /* Recompute the `buf' pointer, since the resizing operation may |
| 2366 | have invalidated it. */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2367 | buf = PyByteArray_AS_STRING(bytearray_obj); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2368 | } |
| 2369 | } |
| 2370 | Py_DECREF(it); |
| 2371 | |
| 2372 | /* Resize down to exact size. */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2373 | if (PyByteArray_Resize((PyObject *)bytearray_obj, len) < 0) { |
| 2374 | Py_DECREF(bytearray_obj); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2375 | return NULL; |
| 2376 | } |
| 2377 | |
Antoine Pitrou | 58bb82e | 2012-04-01 16:05:46 +0200 | [diff] [blame] | 2378 | if (bytearray_setslice(self, Py_SIZE(self), Py_SIZE(self), bytearray_obj) == -1) { |
| 2379 | Py_DECREF(bytearray_obj); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2380 | return NULL; |
Antoine Pitrou | 58bb82e | 2012-04-01 16:05:46 +0200 | [diff] [blame] | 2381 | } |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2382 | Py_DECREF(bytearray_obj); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2383 | |
| 2384 | Py_RETURN_NONE; |
| 2385 | } |
| 2386 | |
| 2387 | PyDoc_STRVAR(pop__doc__, |
| 2388 | "B.pop([index]) -> int\n\ |
| 2389 | \n\ |
| 2390 | Remove and return a single item from B. If no index\n\ |
Benjamin Peterson | dcf97b9 | 2008-07-02 17:30:14 +0000 | [diff] [blame] | 2391 | argument is given, will pop the last value."); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2392 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2393 | bytearray_pop(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2394 | { |
| 2395 | int value; |
| 2396 | Py_ssize_t where = -1, n = Py_SIZE(self); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2397 | char *buf; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2398 | |
| 2399 | if (!PyArg_ParseTuple(args, "|n:pop", &where)) |
| 2400 | return NULL; |
| 2401 | |
| 2402 | if (n == 0) { |
Eli Bendersky | 1bc4f19 | 2011-03-04 04:55:25 +0000 | [diff] [blame] | 2403 | PyErr_SetString(PyExc_IndexError, |
| 2404 | "pop from empty bytearray"); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2405 | return NULL; |
| 2406 | } |
| 2407 | if (where < 0) |
| 2408 | where += Py_SIZE(self); |
| 2409 | if (where < 0 || where >= Py_SIZE(self)) { |
| 2410 | PyErr_SetString(PyExc_IndexError, "pop index out of range"); |
| 2411 | return NULL; |
| 2412 | } |
Antoine Pitrou | 5504e89 | 2008-12-06 21:27:53 +0000 | [diff] [blame] | 2413 | if (!_canresize(self)) |
| 2414 | return NULL; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2415 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2416 | buf = PyByteArray_AS_STRING(self); |
| 2417 | value = buf[where]; |
| 2418 | memmove(buf + where, buf + where + 1, n - where); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2419 | if (PyByteArray_Resize((PyObject *)self, n - 1) < 0) |
| 2420 | return NULL; |
| 2421 | |
Mark Dickinson | 54a3db9 | 2009-09-06 10:19:23 +0000 | [diff] [blame] | 2422 | return PyLong_FromLong((unsigned char)value); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2423 | } |
| 2424 | |
| 2425 | PyDoc_STRVAR(remove__doc__, |
| 2426 | "B.remove(int) -> None\n\ |
| 2427 | \n\ |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2428 | Remove the first occurrence of a value in B."); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2429 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2430 | bytearray_remove(PyByteArrayObject *self, PyObject *arg) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2431 | { |
| 2432 | int value; |
| 2433 | Py_ssize_t where, n = Py_SIZE(self); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2434 | char *buf = PyByteArray_AS_STRING(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2435 | |
| 2436 | if (! _getbytevalue(arg, &value)) |
| 2437 | return NULL; |
| 2438 | |
| 2439 | for (where = 0; where < n; where++) { |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2440 | if (buf[where] == value) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2441 | break; |
| 2442 | } |
| 2443 | if (where == n) { |
Mark Dickinson | 2b6705f | 2009-09-06 10:34:47 +0000 | [diff] [blame] | 2444 | PyErr_SetString(PyExc_ValueError, "value not found in bytearray"); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2445 | return NULL; |
| 2446 | } |
Antoine Pitrou | 5504e89 | 2008-12-06 21:27:53 +0000 | [diff] [blame] | 2447 | if (!_canresize(self)) |
| 2448 | return NULL; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2449 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2450 | memmove(buf + where, buf + where + 1, n - where); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2451 | if (PyByteArray_Resize((PyObject *)self, n - 1) < 0) |
| 2452 | return NULL; |
| 2453 | |
| 2454 | Py_RETURN_NONE; |
| 2455 | } |
| 2456 | |
| 2457 | /* XXX These two helpers could be optimized if argsize == 1 */ |
| 2458 | |
| 2459 | static Py_ssize_t |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2460 | lstrip_helper(char *myptr, Py_ssize_t mysize, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2461 | void *argptr, Py_ssize_t argsize) |
| 2462 | { |
| 2463 | Py_ssize_t i = 0; |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2464 | while (i < mysize && memchr(argptr, (unsigned char) myptr[i], argsize)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2465 | i++; |
| 2466 | return i; |
| 2467 | } |
| 2468 | |
| 2469 | static Py_ssize_t |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2470 | rstrip_helper(char *myptr, Py_ssize_t mysize, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2471 | void *argptr, Py_ssize_t argsize) |
| 2472 | { |
| 2473 | Py_ssize_t i = mysize - 1; |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2474 | while (i >= 0 && memchr(argptr, (unsigned char) myptr[i], argsize)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2475 | i--; |
| 2476 | return i + 1; |
| 2477 | } |
| 2478 | |
| 2479 | PyDoc_STRVAR(strip__doc__, |
| 2480 | "B.strip([bytes]) -> bytearray\n\ |
| 2481 | \n\ |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2482 | Strip leading and trailing bytes contained in the argument\n\ |
| 2483 | and return the result as a new bytearray.\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2484 | If the argument is omitted, strip ASCII whitespace."); |
| 2485 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2486 | bytearray_strip(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2487 | { |
| 2488 | Py_ssize_t left, right, mysize, argsize; |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2489 | char *myptr, *argptr; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2490 | PyObject *arg = Py_None; |
| 2491 | Py_buffer varg; |
| 2492 | if (!PyArg_ParseTuple(args, "|O:strip", &arg)) |
| 2493 | return NULL; |
| 2494 | if (arg == Py_None) { |
| 2495 | argptr = "\t\n\r\f\v "; |
| 2496 | argsize = 6; |
| 2497 | } |
| 2498 | else { |
| 2499 | if (_getbuffer(arg, &varg) < 0) |
| 2500 | return NULL; |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2501 | argptr = (char *) varg.buf; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2502 | argsize = varg.len; |
| 2503 | } |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2504 | myptr = PyByteArray_AS_STRING(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2505 | mysize = Py_SIZE(self); |
| 2506 | left = lstrip_helper(myptr, mysize, argptr, argsize); |
| 2507 | if (left == mysize) |
| 2508 | right = left; |
| 2509 | else |
| 2510 | right = rstrip_helper(myptr, mysize, argptr, argsize); |
| 2511 | if (arg != Py_None) |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 2512 | PyBuffer_Release(&varg); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2513 | return PyByteArray_FromStringAndSize(myptr + left, right - left); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2514 | } |
| 2515 | |
| 2516 | PyDoc_STRVAR(lstrip__doc__, |
| 2517 | "B.lstrip([bytes]) -> bytearray\n\ |
| 2518 | \n\ |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2519 | Strip leading bytes contained in the argument\n\ |
| 2520 | and return the result as a new bytearray.\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2521 | If the argument is omitted, strip leading ASCII whitespace."); |
| 2522 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2523 | bytearray_lstrip(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2524 | { |
| 2525 | Py_ssize_t left, right, mysize, argsize; |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2526 | char *myptr, *argptr; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2527 | PyObject *arg = Py_None; |
| 2528 | Py_buffer varg; |
| 2529 | if (!PyArg_ParseTuple(args, "|O:lstrip", &arg)) |
| 2530 | return NULL; |
| 2531 | if (arg == Py_None) { |
| 2532 | argptr = "\t\n\r\f\v "; |
| 2533 | argsize = 6; |
| 2534 | } |
| 2535 | else { |
| 2536 | if (_getbuffer(arg, &varg) < 0) |
| 2537 | return NULL; |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2538 | argptr = (char *) varg.buf; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2539 | argsize = varg.len; |
| 2540 | } |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2541 | myptr = PyByteArray_AS_STRING(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2542 | mysize = Py_SIZE(self); |
| 2543 | left = lstrip_helper(myptr, mysize, argptr, argsize); |
| 2544 | right = mysize; |
| 2545 | if (arg != Py_None) |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 2546 | PyBuffer_Release(&varg); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2547 | return PyByteArray_FromStringAndSize(myptr + left, right - left); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2548 | } |
| 2549 | |
| 2550 | PyDoc_STRVAR(rstrip__doc__, |
| 2551 | "B.rstrip([bytes]) -> bytearray\n\ |
| 2552 | \n\ |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2553 | Strip trailing bytes contained in the argument\n\ |
| 2554 | and return the result as a new bytearray.\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2555 | If the argument is omitted, strip trailing ASCII whitespace."); |
| 2556 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2557 | bytearray_rstrip(PyByteArrayObject *self, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2558 | { |
Brett Cannon | b94767f | 2011-02-22 20:15:44 +0000 | [diff] [blame] | 2559 | Py_ssize_t right, mysize, argsize; |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2560 | char *myptr, *argptr; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2561 | PyObject *arg = Py_None; |
| 2562 | Py_buffer varg; |
| 2563 | if (!PyArg_ParseTuple(args, "|O:rstrip", &arg)) |
| 2564 | return NULL; |
| 2565 | if (arg == Py_None) { |
| 2566 | argptr = "\t\n\r\f\v "; |
| 2567 | argsize = 6; |
| 2568 | } |
| 2569 | else { |
| 2570 | if (_getbuffer(arg, &varg) < 0) |
| 2571 | return NULL; |
Antoine Pitrou | 5b72075 | 2013-10-05 21:24:10 +0200 | [diff] [blame] | 2572 | argptr = (char *) varg.buf; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2573 | argsize = varg.len; |
| 2574 | } |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2575 | myptr = PyByteArray_AS_STRING(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2576 | mysize = Py_SIZE(self); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2577 | right = rstrip_helper(myptr, mysize, argptr, argsize); |
| 2578 | if (arg != Py_None) |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 2579 | PyBuffer_Release(&varg); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2580 | return PyByteArray_FromStringAndSize(myptr, right); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2581 | } |
| 2582 | |
| 2583 | PyDoc_STRVAR(decode_doc, |
Victor Stinner | c911bbf | 2010-11-07 19:04:46 +0000 | [diff] [blame] | 2584 | "B.decode(encoding='utf-8', errors='strict') -> str\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2585 | \n\ |
Victor Stinner | e14e212 | 2010-11-07 18:41:46 +0000 | [diff] [blame] | 2586 | Decode B using the codec registered for encoding. Default encoding\n\ |
| 2587 | is 'utf-8'. errors may be given to set a different error\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2588 | handling scheme. Default is 'strict' meaning that encoding errors raise\n\ |
| 2589 | a UnicodeDecodeError. Other possible values are 'ignore' and 'replace'\n\ |
| 2590 | as well as any other name registered with codecs.register_error that is\n\ |
| 2591 | able to handle UnicodeDecodeErrors."); |
| 2592 | |
| 2593 | static PyObject * |
Benjamin Peterson | 308d637 | 2009-09-18 21:42:35 +0000 | [diff] [blame] | 2594 | bytearray_decode(PyObject *self, PyObject *args, PyObject *kwargs) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2595 | { |
| 2596 | const char *encoding = NULL; |
| 2597 | const char *errors = NULL; |
Benjamin Peterson | 308d637 | 2009-09-18 21:42:35 +0000 | [diff] [blame] | 2598 | static char *kwlist[] = {"encoding", "errors", 0}; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2599 | |
Benjamin Peterson | 308d637 | 2009-09-18 21:42:35 +0000 | [diff] [blame] | 2600 | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss:decode", kwlist, &encoding, &errors)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2601 | return NULL; |
| 2602 | if (encoding == NULL) |
| 2603 | encoding = PyUnicode_GetDefaultEncoding(); |
Marc-André Lemburg | b2750b5 | 2008-06-06 12:18:17 +0000 | [diff] [blame] | 2604 | return PyUnicode_FromEncodedObject(self, encoding, errors); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2605 | } |
| 2606 | |
| 2607 | PyDoc_STRVAR(alloc_doc, |
| 2608 | "B.__alloc__() -> int\n\ |
| 2609 | \n\ |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2610 | Return the number of bytes actually allocated."); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2611 | |
| 2612 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2613 | bytearray_alloc(PyByteArrayObject *self) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2614 | { |
| 2615 | return PyLong_FromSsize_t(self->ob_alloc); |
| 2616 | } |
| 2617 | |
| 2618 | PyDoc_STRVAR(join_doc, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2619 | "B.join(iterable_of_bytes) -> bytearray\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2620 | \n\ |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2621 | Concatenate any number of bytes/bytearray objects, with B\n\ |
| 2622 | in between each pair, and return the result as a new bytearray."); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2623 | |
| 2624 | static PyObject * |
Antoine Pitrou | cfc22b4 | 2012-10-16 21:07:23 +0200 | [diff] [blame] | 2625 | bytearray_join(PyObject *self, PyObject *iterable) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2626 | { |
Antoine Pitrou | cfc22b4 | 2012-10-16 21:07:23 +0200 | [diff] [blame] | 2627 | return stringlib_bytes_join(self, iterable); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2628 | } |
| 2629 | |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2630 | PyDoc_STRVAR(splitlines__doc__, |
| 2631 | "B.splitlines([keepends]) -> list of lines\n\ |
| 2632 | \n\ |
| 2633 | Return a list of the lines in B, breaking at line boundaries.\n\ |
| 2634 | Line breaks are not included in the resulting list unless keepends\n\ |
| 2635 | is given and true."); |
| 2636 | |
| 2637 | static PyObject* |
Mark Dickinson | 0d5f6ad | 2011-09-24 09:14:39 +0100 | [diff] [blame] | 2638 | bytearray_splitlines(PyObject *self, PyObject *args, PyObject *kwds) |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2639 | { |
Mark Dickinson | 0d5f6ad | 2011-09-24 09:14:39 +0100 | [diff] [blame] | 2640 | static char *kwlist[] = {"keepends", 0}; |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2641 | int keepends = 0; |
| 2642 | |
Mark Dickinson | 0d5f6ad | 2011-09-24 09:14:39 +0100 | [diff] [blame] | 2643 | if (!PyArg_ParseTupleAndKeywords(args, kwds, "|i:splitlines", |
| 2644 | kwlist, &keepends)) |
Antoine Pitrou | f2c5484 | 2010-01-13 08:07:53 +0000 | [diff] [blame] | 2645 | return NULL; |
| 2646 | |
| 2647 | return stringlib_splitlines( |
| 2648 | (PyObject*) self, PyByteArray_AS_STRING(self), |
| 2649 | PyByteArray_GET_SIZE(self), keepends |
| 2650 | ); |
| 2651 | } |
| 2652 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2653 | PyDoc_STRVAR(fromhex_doc, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2654 | "bytearray.fromhex(string) -> bytearray (static method)\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2655 | \n\ |
| 2656 | Create a bytearray object from a string of hexadecimal numbers.\n\ |
| 2657 | Spaces between two numbers are accepted.\n\ |
| 2658 | Example: bytearray.fromhex('B9 01EF') -> bytearray(b'\\xb9\\x01\\xef')."); |
| 2659 | |
| 2660 | static int |
Victor Stinner | 6430fd5 | 2011-09-29 04:02:13 +0200 | [diff] [blame] | 2661 | hex_digit_to_int(Py_UCS4 c) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2662 | { |
| 2663 | if (c >= 128) |
| 2664 | return -1; |
Eric Smith | 6dc46f5 | 2009-04-27 20:39:49 +0000 | [diff] [blame] | 2665 | if (Py_ISDIGIT(c)) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2666 | return c - '0'; |
| 2667 | else { |
Eric Smith | 6dc46f5 | 2009-04-27 20:39:49 +0000 | [diff] [blame] | 2668 | if (Py_ISUPPER(c)) |
| 2669 | c = Py_TOLOWER(c); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2670 | if (c >= 'a' && c <= 'f') |
| 2671 | return c - 'a' + 10; |
| 2672 | } |
| 2673 | return -1; |
| 2674 | } |
| 2675 | |
| 2676 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2677 | bytearray_fromhex(PyObject *cls, PyObject *args) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2678 | { |
| 2679 | PyObject *newbytes, *hexobj; |
| 2680 | char *buf; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2681 | Py_ssize_t hexlen, byteslen, i, j; |
| 2682 | int top, bot; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 2683 | void *data; |
| 2684 | unsigned int kind; |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2685 | |
| 2686 | if (!PyArg_ParseTuple(args, "U:fromhex", &hexobj)) |
| 2687 | return NULL; |
| 2688 | assert(PyUnicode_Check(hexobj)); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 2689 | if (PyUnicode_READY(hexobj)) |
| 2690 | return NULL; |
| 2691 | kind = PyUnicode_KIND(hexobj); |
| 2692 | data = PyUnicode_DATA(hexobj); |
| 2693 | hexlen = PyUnicode_GET_LENGTH(hexobj); |
| 2694 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2695 | byteslen = hexlen/2; /* This overestimates if there are spaces */ |
| 2696 | newbytes = PyByteArray_FromStringAndSize(NULL, byteslen); |
| 2697 | if (!newbytes) |
| 2698 | return NULL; |
| 2699 | buf = PyByteArray_AS_STRING(newbytes); |
| 2700 | for (i = j = 0; i < hexlen; i += 2) { |
| 2701 | /* skip over spaces in the input */ |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 2702 | while (PyUnicode_READ(kind, data, i) == ' ') |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2703 | i++; |
| 2704 | if (i >= hexlen) |
| 2705 | break; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 2706 | top = hex_digit_to_int(PyUnicode_READ(kind, data, i)); |
| 2707 | bot = hex_digit_to_int(PyUnicode_READ(kind, data, i+1)); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2708 | if (top == -1 || bot == -1) { |
| 2709 | PyErr_Format(PyExc_ValueError, |
| 2710 | "non-hexadecimal number found in " |
| 2711 | "fromhex() arg at position %zd", i); |
| 2712 | goto error; |
| 2713 | } |
| 2714 | buf[j++] = (top << 4) + bot; |
| 2715 | } |
| 2716 | if (PyByteArray_Resize(newbytes, j) < 0) |
| 2717 | goto error; |
| 2718 | return newbytes; |
| 2719 | |
| 2720 | error: |
| 2721 | Py_DECREF(newbytes); |
| 2722 | return NULL; |
| 2723 | } |
| 2724 | |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2725 | |
| 2726 | static PyObject * |
Antoine Pitrou | b0e1f8b | 2011-12-05 20:40:08 +0100 | [diff] [blame] | 2727 | _common_reduce(PyByteArrayObject *self, int proto) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2728 | { |
Antoine Pitrou | b0e1f8b | 2011-12-05 20:40:08 +0100 | [diff] [blame] | 2729 | PyObject *dict; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 2730 | _Py_IDENTIFIER(__dict__); |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2731 | char *buf; |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 2732 | |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 2733 | dict = _PyObject_GetAttrId((PyObject *)self, &PyId___dict__); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2734 | if (dict == NULL) { |
| 2735 | PyErr_Clear(); |
| 2736 | dict = Py_None; |
| 2737 | Py_INCREF(dict); |
| 2738 | } |
| 2739 | |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2740 | buf = PyByteArray_AS_STRING(self); |
Antoine Pitrou | b0e1f8b | 2011-12-05 20:40:08 +0100 | [diff] [blame] | 2741 | if (proto < 3) { |
| 2742 | /* use str based reduction for backwards compatibility with Python 2.x */ |
| 2743 | PyObject *latin1; |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2744 | if (Py_SIZE(self)) |
| 2745 | latin1 = PyUnicode_DecodeLatin1(buf, Py_SIZE(self), NULL); |
Antoine Pitrou | b0e1f8b | 2011-12-05 20:40:08 +0100 | [diff] [blame] | 2746 | else |
| 2747 | latin1 = PyUnicode_FromString(""); |
| 2748 | return Py_BuildValue("(O(Ns)N)", Py_TYPE(self), latin1, "latin-1", dict); |
| 2749 | } |
| 2750 | else { |
| 2751 | /* use more efficient byte based reduction */ |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2752 | if (Py_SIZE(self)) { |
| 2753 | return Py_BuildValue("(O(y#)N)", Py_TYPE(self), buf, Py_SIZE(self), dict); |
Antoine Pitrou | b0e1f8b | 2011-12-05 20:40:08 +0100 | [diff] [blame] | 2754 | } |
| 2755 | else { |
| 2756 | return Py_BuildValue("(O()N)", Py_TYPE(self), dict); |
| 2757 | } |
| 2758 | } |
| 2759 | } |
| 2760 | |
| 2761 | PyDoc_STRVAR(reduce_doc, "Return state information for pickling."); |
| 2762 | |
| 2763 | static PyObject * |
| 2764 | bytearray_reduce(PyByteArrayObject *self) |
| 2765 | { |
| 2766 | return _common_reduce(self, 2); |
| 2767 | } |
| 2768 | |
| 2769 | PyDoc_STRVAR(reduce_ex_doc, "Return state information for pickling."); |
| 2770 | |
| 2771 | static PyObject * |
| 2772 | bytearray_reduce_ex(PyByteArrayObject *self, PyObject *args) |
| 2773 | { |
| 2774 | int proto = 0; |
| 2775 | |
| 2776 | if (!PyArg_ParseTuple(args, "|i:__reduce_ex__", &proto)) |
| 2777 | return NULL; |
| 2778 | |
| 2779 | return _common_reduce(self, proto); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2780 | } |
| 2781 | |
Robert Schuppenies | fbe94c5 | 2008-07-14 10:13:31 +0000 | [diff] [blame] | 2782 | PyDoc_STRVAR(sizeof_doc, |
| 2783 | "B.__sizeof__() -> int\n\ |
| 2784 | \n\ |
| 2785 | Returns the size of B in memory, in bytes"); |
| 2786 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2787 | bytearray_sizeof(PyByteArrayObject *self) |
Robert Schuppenies | fbe94c5 | 2008-07-14 10:13:31 +0000 | [diff] [blame] | 2788 | { |
Benjamin Peterson | ef3e4c2 | 2009-04-11 19:48:14 +0000 | [diff] [blame] | 2789 | Py_ssize_t res; |
Robert Schuppenies | fbe94c5 | 2008-07-14 10:13:31 +0000 | [diff] [blame] | 2790 | |
Benjamin Peterson | ef3e4c2 | 2009-04-11 19:48:14 +0000 | [diff] [blame] | 2791 | res = sizeof(PyByteArrayObject) + self->ob_alloc * sizeof(char); |
| 2792 | return PyLong_FromSsize_t(res); |
Robert Schuppenies | fbe94c5 | 2008-07-14 10:13:31 +0000 | [diff] [blame] | 2793 | } |
| 2794 | |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2795 | static PySequenceMethods bytearray_as_sequence = { |
| 2796 | (lenfunc)bytearray_length, /* sq_length */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2797 | (binaryfunc)PyByteArray_Concat, /* sq_concat */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2798 | (ssizeargfunc)bytearray_repeat, /* sq_repeat */ |
| 2799 | (ssizeargfunc)bytearray_getitem, /* sq_item */ |
| 2800 | 0, /* sq_slice */ |
| 2801 | (ssizeobjargproc)bytearray_setitem, /* sq_ass_item */ |
| 2802 | 0, /* sq_ass_slice */ |
| 2803 | (objobjproc)bytearray_contains, /* sq_contains */ |
| 2804 | (binaryfunc)bytearray_iconcat, /* sq_inplace_concat */ |
| 2805 | (ssizeargfunc)bytearray_irepeat, /* sq_inplace_repeat */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2806 | }; |
| 2807 | |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2808 | static PyMappingMethods bytearray_as_mapping = { |
| 2809 | (lenfunc)bytearray_length, |
| 2810 | (binaryfunc)bytearray_subscript, |
| 2811 | (objobjargproc)bytearray_ass_subscript, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2812 | }; |
| 2813 | |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2814 | static PyBufferProcs bytearray_as_buffer = { |
| 2815 | (getbufferproc)bytearray_getbuffer, |
| 2816 | (releasebufferproc)bytearray_releasebuffer, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2817 | }; |
| 2818 | |
| 2819 | static PyMethodDef |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2820 | bytearray_methods[] = { |
| 2821 | {"__alloc__", (PyCFunction)bytearray_alloc, METH_NOARGS, alloc_doc}, |
| 2822 | {"__reduce__", (PyCFunction)bytearray_reduce, METH_NOARGS, reduce_doc}, |
Antoine Pitrou | b0e1f8b | 2011-12-05 20:40:08 +0100 | [diff] [blame] | 2823 | {"__reduce_ex__", (PyCFunction)bytearray_reduce_ex, METH_VARARGS, reduce_ex_doc}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2824 | {"__sizeof__", (PyCFunction)bytearray_sizeof, METH_NOARGS, sizeof_doc}, |
| 2825 | {"append", (PyCFunction)bytearray_append, METH_O, append__doc__}, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2826 | {"capitalize", (PyCFunction)stringlib_capitalize, METH_NOARGS, |
| 2827 | _Py_capitalize__doc__}, |
| 2828 | {"center", (PyCFunction)stringlib_center, METH_VARARGS, center__doc__}, |
Eli Bendersky | 4db28d3 | 2011-03-03 18:21:02 +0000 | [diff] [blame] | 2829 | {"clear", (PyCFunction)bytearray_clear, METH_NOARGS, clear__doc__}, |
| 2830 | {"copy", (PyCFunction)bytearray_copy, METH_NOARGS, copy__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2831 | {"count", (PyCFunction)bytearray_count, METH_VARARGS, count__doc__}, |
Benjamin Peterson | 308d637 | 2009-09-18 21:42:35 +0000 | [diff] [blame] | 2832 | {"decode", (PyCFunction)bytearray_decode, METH_VARARGS | METH_KEYWORDS, decode_doc}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2833 | {"endswith", (PyCFunction)bytearray_endswith, METH_VARARGS, endswith__doc__}, |
Ezio Melotti | 745d54d | 2013-11-16 19:10:57 +0200 | [diff] [blame] | 2834 | {"expandtabs", (PyCFunction)stringlib_expandtabs, METH_VARARGS | METH_KEYWORDS, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2835 | expandtabs__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2836 | {"extend", (PyCFunction)bytearray_extend, METH_O, extend__doc__}, |
| 2837 | {"find", (PyCFunction)bytearray_find, METH_VARARGS, find__doc__}, |
| 2838 | {"fromhex", (PyCFunction)bytearray_fromhex, METH_VARARGS|METH_CLASS, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2839 | fromhex_doc}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2840 | {"index", (PyCFunction)bytearray_index, METH_VARARGS, index__doc__}, |
| 2841 | {"insert", (PyCFunction)bytearray_insert, METH_VARARGS, insert__doc__}, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2842 | {"isalnum", (PyCFunction)stringlib_isalnum, METH_NOARGS, |
| 2843 | _Py_isalnum__doc__}, |
| 2844 | {"isalpha", (PyCFunction)stringlib_isalpha, METH_NOARGS, |
| 2845 | _Py_isalpha__doc__}, |
| 2846 | {"isdigit", (PyCFunction)stringlib_isdigit, METH_NOARGS, |
| 2847 | _Py_isdigit__doc__}, |
| 2848 | {"islower", (PyCFunction)stringlib_islower, METH_NOARGS, |
| 2849 | _Py_islower__doc__}, |
| 2850 | {"isspace", (PyCFunction)stringlib_isspace, METH_NOARGS, |
| 2851 | _Py_isspace__doc__}, |
| 2852 | {"istitle", (PyCFunction)stringlib_istitle, METH_NOARGS, |
| 2853 | _Py_istitle__doc__}, |
| 2854 | {"isupper", (PyCFunction)stringlib_isupper, METH_NOARGS, |
| 2855 | _Py_isupper__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2856 | {"join", (PyCFunction)bytearray_join, METH_O, join_doc}, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2857 | {"ljust", (PyCFunction)stringlib_ljust, METH_VARARGS, ljust__doc__}, |
| 2858 | {"lower", (PyCFunction)stringlib_lower, METH_NOARGS, _Py_lower__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2859 | {"lstrip", (PyCFunction)bytearray_lstrip, METH_VARARGS, lstrip__doc__}, |
| 2860 | {"maketrans", (PyCFunction)bytearray_maketrans, METH_VARARGS|METH_STATIC, |
Georg Brandl | abc3877 | 2009-04-12 15:51:51 +0000 | [diff] [blame] | 2861 | _Py_maketrans__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2862 | {"partition", (PyCFunction)bytearray_partition, METH_O, partition__doc__}, |
| 2863 | {"pop", (PyCFunction)bytearray_pop, METH_VARARGS, pop__doc__}, |
| 2864 | {"remove", (PyCFunction)bytearray_remove, METH_O, remove__doc__}, |
| 2865 | {"replace", (PyCFunction)bytearray_replace, METH_VARARGS, replace__doc__}, |
| 2866 | {"reverse", (PyCFunction)bytearray_reverse, METH_NOARGS, reverse__doc__}, |
| 2867 | {"rfind", (PyCFunction)bytearray_rfind, METH_VARARGS, rfind__doc__}, |
| 2868 | {"rindex", (PyCFunction)bytearray_rindex, METH_VARARGS, rindex__doc__}, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2869 | {"rjust", (PyCFunction)stringlib_rjust, METH_VARARGS, rjust__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2870 | {"rpartition", (PyCFunction)bytearray_rpartition, METH_O, rpartition__doc__}, |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2871 | {"rsplit", (PyCFunction)bytearray_rsplit, METH_VARARGS | METH_KEYWORDS, rsplit__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2872 | {"rstrip", (PyCFunction)bytearray_rstrip, METH_VARARGS, rstrip__doc__}, |
Ezio Melotti | cda6b6d | 2012-02-26 09:39:55 +0200 | [diff] [blame] | 2873 | {"split", (PyCFunction)bytearray_split, METH_VARARGS | METH_KEYWORDS, split__doc__}, |
Mark Dickinson | 0d5f6ad | 2011-09-24 09:14:39 +0100 | [diff] [blame] | 2874 | {"splitlines", (PyCFunction)bytearray_splitlines, |
| 2875 | METH_VARARGS | METH_KEYWORDS, splitlines__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2876 | {"startswith", (PyCFunction)bytearray_startswith, METH_VARARGS , |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2877 | startswith__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2878 | {"strip", (PyCFunction)bytearray_strip, METH_VARARGS, strip__doc__}, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2879 | {"swapcase", (PyCFunction)stringlib_swapcase, METH_NOARGS, |
| 2880 | _Py_swapcase__doc__}, |
| 2881 | {"title", (PyCFunction)stringlib_title, METH_NOARGS, _Py_title__doc__}, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2882 | {"translate", (PyCFunction)bytearray_translate, METH_VARARGS, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2883 | translate__doc__}, |
| 2884 | {"upper", (PyCFunction)stringlib_upper, METH_NOARGS, _Py_upper__doc__}, |
| 2885 | {"zfill", (PyCFunction)stringlib_zfill, METH_VARARGS, zfill__doc__}, |
| 2886 | {NULL} |
| 2887 | }; |
| 2888 | |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2889 | PyDoc_STRVAR(bytearray_doc, |
Georg Brandl | 17cb8a8 | 2008-05-30 08:20:09 +0000 | [diff] [blame] | 2890 | "bytearray(iterable_of_ints) -> bytearray\n\ |
| 2891 | bytearray(string, encoding[, errors]) -> bytearray\n\ |
Victor Stinner | bb2e9c4 | 2011-12-17 23:18:07 +0100 | [diff] [blame] | 2892 | bytearray(bytes_or_buffer) -> mutable copy of bytes_or_buffer\n\ |
| 2893 | bytearray(int) -> bytes array of size given by the parameter initialized with null bytes\n\ |
| 2894 | bytearray() -> empty bytes array\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2895 | \n\ |
| 2896 | Construct an mutable bytearray object from:\n\ |
| 2897 | - an iterable yielding integers in range(256)\n\ |
| 2898 | - a text string encoded using the specified encoding\n\ |
Victor Stinner | bb2e9c4 | 2011-12-17 23:18:07 +0100 | [diff] [blame] | 2899 | - a bytes or a buffer object\n\ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2900 | - any object implementing the buffer API.\n\ |
Victor Stinner | bb2e9c4 | 2011-12-17 23:18:07 +0100 | [diff] [blame] | 2901 | - an integer"); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2902 | |
| 2903 | |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2904 | static PyObject *bytearray_iter(PyObject *seq); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2905 | |
| 2906 | PyTypeObject PyByteArray_Type = { |
| 2907 | PyVarObject_HEAD_INIT(&PyType_Type, 0) |
| 2908 | "bytearray", |
| 2909 | sizeof(PyByteArrayObject), |
| 2910 | 0, |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2911 | (destructor)bytearray_dealloc, /* tp_dealloc */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2912 | 0, /* tp_print */ |
| 2913 | 0, /* tp_getattr */ |
| 2914 | 0, /* tp_setattr */ |
Mark Dickinson | e94c679 | 2009-02-02 20:36:42 +0000 | [diff] [blame] | 2915 | 0, /* tp_reserved */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2916 | (reprfunc)bytearray_repr, /* tp_repr */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2917 | 0, /* tp_as_number */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2918 | &bytearray_as_sequence, /* tp_as_sequence */ |
| 2919 | &bytearray_as_mapping, /* tp_as_mapping */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2920 | 0, /* tp_hash */ |
| 2921 | 0, /* tp_call */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2922 | bytearray_str, /* tp_str */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2923 | PyObject_GenericGetAttr, /* tp_getattro */ |
| 2924 | 0, /* tp_setattro */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2925 | &bytearray_as_buffer, /* tp_as_buffer */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2926 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2927 | bytearray_doc, /* tp_doc */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2928 | 0, /* tp_traverse */ |
| 2929 | 0, /* tp_clear */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2930 | (richcmpfunc)bytearray_richcompare, /* tp_richcompare */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2931 | 0, /* tp_weaklistoffset */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2932 | bytearray_iter, /* tp_iter */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2933 | 0, /* tp_iternext */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2934 | bytearray_methods, /* tp_methods */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2935 | 0, /* tp_members */ |
| 2936 | 0, /* tp_getset */ |
| 2937 | 0, /* tp_base */ |
| 2938 | 0, /* tp_dict */ |
| 2939 | 0, /* tp_descr_get */ |
| 2940 | 0, /* tp_descr_set */ |
| 2941 | 0, /* tp_dictoffset */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2942 | (initproc)bytearray_init, /* tp_init */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2943 | PyType_GenericAlloc, /* tp_alloc */ |
| 2944 | PyType_GenericNew, /* tp_new */ |
| 2945 | PyObject_Del, /* tp_free */ |
| 2946 | }; |
| 2947 | |
| 2948 | /*********************** Bytes Iterator ****************************/ |
| 2949 | |
| 2950 | typedef struct { |
| 2951 | PyObject_HEAD |
| 2952 | Py_ssize_t it_index; |
| 2953 | PyByteArrayObject *it_seq; /* Set to NULL when iterator is exhausted */ |
| 2954 | } bytesiterobject; |
| 2955 | |
| 2956 | static void |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2957 | bytearrayiter_dealloc(bytesiterobject *it) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2958 | { |
| 2959 | _PyObject_GC_UNTRACK(it); |
| 2960 | Py_XDECREF(it->it_seq); |
| 2961 | PyObject_GC_Del(it); |
| 2962 | } |
| 2963 | |
| 2964 | static int |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2965 | bytearrayiter_traverse(bytesiterobject *it, visitproc visit, void *arg) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2966 | { |
| 2967 | Py_VISIT(it->it_seq); |
| 2968 | return 0; |
| 2969 | } |
| 2970 | |
| 2971 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 2972 | bytearrayiter_next(bytesiterobject *it) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2973 | { |
| 2974 | PyByteArrayObject *seq; |
| 2975 | PyObject *item; |
| 2976 | |
| 2977 | assert(it != NULL); |
| 2978 | seq = it->it_seq; |
| 2979 | if (seq == NULL) |
| 2980 | return NULL; |
| 2981 | assert(PyByteArray_Check(seq)); |
| 2982 | |
| 2983 | if (it->it_index < PyByteArray_GET_SIZE(seq)) { |
| 2984 | item = PyLong_FromLong( |
Antoine Pitrou | 5df8a8a | 2013-10-05 21:12:18 +0200 | [diff] [blame] | 2985 | (unsigned char)PyByteArray_AS_STRING(seq)[it->it_index]); |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2986 | if (item != NULL) |
| 2987 | ++it->it_index; |
| 2988 | return item; |
| 2989 | } |
| 2990 | |
| 2991 | Py_DECREF(seq); |
| 2992 | it->it_seq = NULL; |
| 2993 | return NULL; |
| 2994 | } |
| 2995 | |
| 2996 | static PyObject * |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 2997 | bytearrayiter_length_hint(bytesiterobject *it) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 2998 | { |
| 2999 | Py_ssize_t len = 0; |
| 3000 | if (it->it_seq) |
| 3001 | len = PyByteArray_GET_SIZE(it->it_seq) - it->it_index; |
| 3002 | return PyLong_FromSsize_t(len); |
| 3003 | } |
| 3004 | |
| 3005 | PyDoc_STRVAR(length_hint_doc, |
| 3006 | "Private method returning an estimate of len(list(it))."); |
| 3007 | |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 3008 | static PyObject * |
| 3009 | bytearrayiter_reduce(bytesiterobject *it) |
| 3010 | { |
| 3011 | if (it->it_seq != NULL) { |
Antoine Pitrou | a701388 | 2012-04-05 00:04:20 +0200 | [diff] [blame] | 3012 | return Py_BuildValue("N(O)n", _PyObject_GetBuiltin("iter"), |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 3013 | it->it_seq, it->it_index); |
| 3014 | } else { |
| 3015 | PyObject *u = PyUnicode_FromUnicode(NULL, 0); |
| 3016 | if (u == NULL) |
| 3017 | return NULL; |
Antoine Pitrou | a701388 | 2012-04-05 00:04:20 +0200 | [diff] [blame] | 3018 | return Py_BuildValue("N(N)", _PyObject_GetBuiltin("iter"), u); |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 3019 | } |
| 3020 | } |
| 3021 | |
| 3022 | static PyObject * |
| 3023 | bytearrayiter_setstate(bytesiterobject *it, PyObject *state) |
| 3024 | { |
| 3025 | Py_ssize_t index = PyLong_AsSsize_t(state); |
| 3026 | if (index == -1 && PyErr_Occurred()) |
| 3027 | return NULL; |
| 3028 | if (index < 0) |
| 3029 | index = 0; |
| 3030 | it->it_index = index; |
| 3031 | Py_RETURN_NONE; |
| 3032 | } |
| 3033 | |
| 3034 | PyDoc_STRVAR(setstate_doc, "Set state information for unpickling."); |
| 3035 | |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 3036 | static PyMethodDef bytearrayiter_methods[] = { |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 3037 | {"__length_hint__", (PyCFunction)bytearrayiter_length_hint, METH_NOARGS, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 3038 | length_hint_doc}, |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 3039 | {"__reduce__", (PyCFunction)bytearrayiter_reduce, METH_NOARGS, |
| 3040 | reduce_doc}, |
| 3041 | {"__setstate__", (PyCFunction)bytearrayiter_setstate, METH_O, |
| 3042 | setstate_doc}, |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 3043 | {NULL, NULL} /* sentinel */ |
| 3044 | }; |
| 3045 | |
| 3046 | PyTypeObject PyByteArrayIter_Type = { |
| 3047 | PyVarObject_HEAD_INIT(&PyType_Type, 0) |
| 3048 | "bytearray_iterator", /* tp_name */ |
| 3049 | sizeof(bytesiterobject), /* tp_basicsize */ |
| 3050 | 0, /* tp_itemsize */ |
| 3051 | /* methods */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 3052 | (destructor)bytearrayiter_dealloc, /* tp_dealloc */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 3053 | 0, /* tp_print */ |
| 3054 | 0, /* tp_getattr */ |
| 3055 | 0, /* tp_setattr */ |
Mark Dickinson | e94c679 | 2009-02-02 20:36:42 +0000 | [diff] [blame] | 3056 | 0, /* tp_reserved */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 3057 | 0, /* tp_repr */ |
| 3058 | 0, /* tp_as_number */ |
| 3059 | 0, /* tp_as_sequence */ |
| 3060 | 0, /* tp_as_mapping */ |
| 3061 | 0, /* tp_hash */ |
| 3062 | 0, /* tp_call */ |
| 3063 | 0, /* tp_str */ |
| 3064 | PyObject_GenericGetAttr, /* tp_getattro */ |
| 3065 | 0, /* tp_setattro */ |
| 3066 | 0, /* tp_as_buffer */ |
| 3067 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */ |
| 3068 | 0, /* tp_doc */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 3069 | (traverseproc)bytearrayiter_traverse, /* tp_traverse */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 3070 | 0, /* tp_clear */ |
| 3071 | 0, /* tp_richcompare */ |
| 3072 | 0, /* tp_weaklistoffset */ |
| 3073 | PyObject_SelfIter, /* tp_iter */ |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 3074 | (iternextfunc)bytearrayiter_next, /* tp_iternext */ |
| 3075 | bytearrayiter_methods, /* tp_methods */ |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 3076 | 0, |
| 3077 | }; |
| 3078 | |
| 3079 | static PyObject * |
Benjamin Peterson | 153c70f | 2009-04-18 15:42:12 +0000 | [diff] [blame] | 3080 | bytearray_iter(PyObject *seq) |
Christian Heimes | 2c9c7a5 | 2008-05-26 13:42:13 +0000 | [diff] [blame] | 3081 | { |
| 3082 | bytesiterobject *it; |
| 3083 | |
| 3084 | if (!PyByteArray_Check(seq)) { |
| 3085 | PyErr_BadInternalCall(); |
| 3086 | return NULL; |
| 3087 | } |
| 3088 | it = PyObject_GC_New(bytesiterobject, &PyByteArrayIter_Type); |
| 3089 | if (it == NULL) |
| 3090 | return NULL; |
| 3091 | it->it_index = 0; |
| 3092 | Py_INCREF(seq); |
| 3093 | it->it_seq = (PyByteArrayObject *)seq; |
| 3094 | _PyObject_GC_TRACK(it); |
| 3095 | return (PyObject *)it; |
| 3096 | } |