cpython-lru_cache-weakref: Modules/

annotate Modules/_io/stringio.c @ 57114:d3a81051663b

importlib.test.source.util referenced variables in the 'finally' part of a try/finally which may not have been set.

author	Brett Cannon <bcannon@gmail.com>
date	Thu, 05 Nov 2009 01:17:22 +0000
parents	538850b38931
children	b354c1b6b476

rev	line source
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	1 #define PY_SSIZE_T_CLEAN
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	2 #include "Python.h"
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	3 #include "structmember.h"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	4 #include "_iomodule.h"
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	5
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	6 /* Implementation note: the buffer is always at least one character longer
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	7 than the enclosed string, for proper functioning of _PyIO_find_line_ending.
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	8 */
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	9
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	10 typedef struct {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	11 PyObject_HEAD
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	12 Py_UNICODE *buf;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	13 Py_ssize_t pos;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	14 Py_ssize_t string_size;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	15 size_t buf_size;
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	16
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	17 char ok; /* initialized? */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	18 char closed;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	19 char readuniversal;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	20 char readtranslate;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	21 PyObject *decoder;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	22 PyObject *readnl;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	23 PyObject *writenl;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	24
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	25 PyObject *dict;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	26 PyObject *weakreflist;
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	27 } stringio;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	28
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	29 #define CHECK_INITIALIZED(self) \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	30 if (self->ok <= 0) { \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	31 PyErr_SetString(PyExc_ValueError, \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	32 "I/O operation on uninitialized object"); \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	33 return NULL; \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	34 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	35
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	36 #define CHECK_CLOSED(self) \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	37 if (self->closed) { \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	38 PyErr_SetString(PyExc_ValueError, \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	39 "I/O operation on closed file"); \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	40 return NULL; \
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	41 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	42
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	43 PyDoc_STRVAR(stringio_doc,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	44 "Text I/O implementation using an in-memory buffer.\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	45 "\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	46 "The initial_value argument sets the value of object. The newline\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	47 "argument is like the one of TextIOWrapper's constructor.");
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	48
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	49
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	50 /* Internal routine for changing the size, in terms of characters, of the
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	51 buffer of StringIO objects. The caller should ensure that the 'size'
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	52 argument is non-negative. Returns 0 on success, -1 otherwise. */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	53 static int
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	54 resize_buffer(stringio *self, size_t size)
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	55 {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	56 /* Here, unsigned types are used to avoid dealing with signed integer
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	57 overflow, which is undefined in C. */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	58 size_t alloc = self->buf_size;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	59 Py_UNICODE *new_buf = NULL;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	60
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	61 assert(self->buf != NULL);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	62
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	63 /* Reserve one more char for line ending detection. */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	64 size = size + 1;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	65 /* For simplicity, stay in the range of the signed type. Anyway, Python
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	66 doesn't allow strings to be longer than this. */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	67 if (size > PY_SSIZE_T_MAX)
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	68 goto overflow;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	69
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	70 if (size < alloc / 2) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	71 /* Major downsize; resize down to exact size. */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	72 alloc = size + 1;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	73 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	74 else if (size < alloc) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	75 /* Within allocated size; quick exit */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	76 return 0;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	77 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	78 else if (size <= alloc * 1.125) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	79 /* Moderate upsize; overallocate similar to list_resize() */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	80 alloc = size + (size >> 3) + (size < 9 ? 3 : 6);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	81 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	82 else {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	83 /* Major upsize; resize up to exact size */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	84 alloc = size + 1;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	85 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	86
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	87 if (alloc > ((size_t)-1) / sizeof(Py_UNICODE))
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	88 goto overflow;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	89 new_buf = (Py_UNICODE *)PyMem_Realloc(self->buf,
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	90 alloc * sizeof(Py_UNICODE));
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	91 if (new_buf == NULL) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	92 PyErr_NoMemory();
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	93 return -1;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	94 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	95 self->buf_size = alloc;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	96 self->buf = new_buf;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	97
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	98 return 0;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	99
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	100 overflow:
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	101 PyErr_SetString(PyExc_OverflowError,
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	102 "new buffer size too large");
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	103 return -1;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	104 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	105
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	106 /* Internal routine for writing a whole PyUnicode object to the buffer of a
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	107 StringIO object. Returns 0 on success, or -1 on error. */
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	108 static Py_ssize_t
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	109 write_str(stringio self, PyObject obj)
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	110 {
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	111 Py_UNICODE *str;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	112 Py_ssize_t len;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	113 PyObject *decoded = NULL;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	114 assert(self->buf != NULL);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	115 assert(self->pos >= 0);
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	116
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	117 if (self->decoder != NULL) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	118 decoded = _PyIncrementalNewlineDecoder_decode(
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	119 self->decoder, obj, 1 /* always final */);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	120 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	121 else {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	122 decoded = obj;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	123 Py_INCREF(decoded);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	124 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	125 if (self->writenl) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	126 PyObject *translated = PyUnicode_Replace(
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	127 decoded, _PyIO_str_nl, self->writenl, -1);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	128 Py_DECREF(decoded);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	129 decoded = translated;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	130 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	131 if (decoded == NULL)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	132 return -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	133
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	134 assert(PyUnicode_Check(decoded));
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	135 str = PyUnicode_AS_UNICODE(decoded);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	136 len = PyUnicode_GET_SIZE(decoded);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	137
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	138 assert(len >= 0);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	139
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	140 /* This overflow check is not strictly necessary. However, it avoids us to
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	141 deal with funky things like comparing an unsigned and a signed
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	142 integer. */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	143 if (self->pos > PY_SSIZE_T_MAX - len) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	144 PyErr_SetString(PyExc_OverflowError,
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	145 "new position too large");
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	146 goto fail;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	147 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	148 if (self->pos + len > self->string_size) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	149 if (resize_buffer(self, self->pos + len) < 0)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	150 goto fail;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	151 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	152
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	153 if (self->pos > self->string_size) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	154 /* In case of overseek, pad with null bytes the buffer region between
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	155 the end of stream and the current position.
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	156
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	157 0 lo string_size hi
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	158 \| \|<---used--->\|<----------available----------->\|
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	159 \| \| <--to pad-->\|<---to write---> \|
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	160 0 buf positon
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	161
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	162 */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	163 memset(self->buf + self->string_size, '\0',
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	164 (self->pos - self->string_size) * sizeof(Py_UNICODE));
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	165 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	166
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	167 /* Copy the data to the internal buffer, overwriting some of the
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	168 existing data if self->pos < self->string_size. */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	169 memcpy(self->buf + self->pos, str, len * sizeof(Py_UNICODE));
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	170 self->pos += len;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	171
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	172 /* Set the new length of the internal string if it has changed. */
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	173 if (self->string_size < self->pos) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	174 self->string_size = self->pos;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	175 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	176
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	177 Py_DECREF(decoded);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	178 return 0;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	179
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	180 fail:
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	181 Py_XDECREF(decoded);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	182 return -1;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	183 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	184
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	185 PyDoc_STRVAR(stringio_getvalue_doc,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	186 "Retrieve the entire contents of the object.");
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	187
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	188 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	189 stringio_getvalue(stringio *self)
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	190 {
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	191 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	192 CHECK_CLOSED(self);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	193 return PyUnicode_FromUnicode(self->buf, self->string_size);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	194 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	195
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	196 PyDoc_STRVAR(stringio_tell_doc,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	197 "Tell the current file position.");
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	198
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	199 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	200 stringio_tell(stringio *self)
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	201 {
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	202 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	203 CHECK_CLOSED(self);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	204 return PyLong_FromSsize_t(self->pos);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	205 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	206
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	207 PyDoc_STRVAR(stringio_read_doc,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	208 "Read at most n characters, returned as a string.\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	209 "\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	210 "If the argument is negative or omitted, read until EOF\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	211 "is reached. Return an empty string at EOF.\n");
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	212
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	213 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	214 stringio_read(stringio self, PyObject args)
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	215 {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	216 Py_ssize_t size, n;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	217 Py_UNICODE *output;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	218 PyObject *arg = Py_None;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	219
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	220 CHECK_INITIALIZED(self);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	221 if (!PyArg_ParseTuple(args, "\|O:read", &arg))
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	222 return NULL;
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	223 CHECK_CLOSED(self);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	224
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	225 if (PyNumber_Check(arg)) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	226 size = PyNumber_AsSsize_t(arg, PyExc_OverflowError);
49360 1f4ea0229ec6 Fix a probable merge glitch in r66695: Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 49353 diff changeset	227 if (size == -1 && PyErr_Occurred())
1f4ea0229ec6 Fix a probable merge glitch in r66695: Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 49353 diff changeset	228 return NULL;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	229 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	230 else if (arg == Py_None) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	231 /* Read until EOF is reached, by default. */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	232 size = -1;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	233 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	234 else {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	235 PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	236 Py_TYPE(arg)->tp_name);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	237 return NULL;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	238 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	239
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	240 /* adjust invalid sizes */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	241 n = self->string_size - self->pos;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	242 if (size < 0 \|\| size > n) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	243 size = n;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	244 if (size < 0)
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	245 size = 0;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	246 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	247
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	248 output = self->buf + self->pos;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	249 self->pos += size;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	250 return PyUnicode_FromUnicode(output, size);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	251 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	252
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	253 /* Internal helper, used by stringio_readline and stringio_iternext */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	254 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	255 _stringio_readline(stringio *self, Py_ssize_t limit)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	256 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	257 Py_UNICODE start, end, old_char;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	258 Py_ssize_t len, consumed;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	259
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	260 /* In case of overseek, return the empty string */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	261 if (self->pos >= self->string_size)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	262 return PyUnicode_FromString("");
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	263
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	264 start = self->buf + self->pos;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	265 if (limit < 0 \|\| limit > self->string_size - self->pos)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	266 limit = self->string_size - self->pos;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	267
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	268 end = start + limit;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	269 old_char = *end;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	270 *end = '\0';
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	271 len = _PyIO_find_line_ending(
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	272 self->readtranslate, self->readuniversal, self->readnl,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	273 start, end, &consumed);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	274 *end = old_char;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	275 /* If we haven't found any line ending, we just return everything
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	276 (`consumed` is ignored). */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	277 if (len < 0)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	278 len = limit;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	279 self->pos += len;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	280 return PyUnicode_FromUnicode(start, len);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	281 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	282
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	283 PyDoc_STRVAR(stringio_readline_doc,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	284 "Read until newline or EOF.\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	285 "\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	286 "Returns an empty string if EOF is hit immediately.\n");
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	287
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	288 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	289 stringio_readline(stringio self, PyObject args)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	290 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	291 PyObject *arg = Py_None;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	292 Py_ssize_t limit = -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	293
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	294 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	295 if (!PyArg_ParseTuple(args, "\|O:readline", &arg))
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	296 return NULL;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	297 CHECK_CLOSED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	298
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	299 if (PyNumber_Check(arg)) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	300 limit = PyNumber_AsSsize_t(arg, PyExc_OverflowError);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	301 if (limit == -1 && PyErr_Occurred())
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	302 return NULL;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	303 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	304 else if (arg != Py_None) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	305 PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	306 Py_TYPE(arg)->tp_name);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	307 return NULL;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	308 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	309 return _stringio_readline(self, limit);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	310 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	311
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	312 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	313 stringio_iternext(stringio *self)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	314 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	315 PyObject *line;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	316
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	317 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	318 CHECK_CLOSED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	319
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	320 if (Py_TYPE(self) == &PyStringIO_Type) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	321 /* Skip method call overhead for speed */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	322 line = _stringio_readline(self, -1);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	323 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	324 else {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	325 /* XXX is subclassing StringIO really supported? */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	326 line = PyObject_CallMethodObjArgs((PyObject *)self,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	327 _PyIO_str_readline, NULL);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	328 if (line && !PyUnicode_Check(line)) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	329 PyErr_Format(PyExc_IOError,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	330 "readline() should have returned an str object, "
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	331 "not '%.200s'", Py_TYPE(line)->tp_name);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	332 Py_DECREF(line);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	333 return NULL;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	334 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	335 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	336
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	337 if (line == NULL)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	338 return NULL;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	339
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	340 if (PyUnicode_GET_SIZE(line) == 0) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	341 /* Reached EOF */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	342 Py_DECREF(line);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	343 return NULL;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	344 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	345
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	346 return line;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	347 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	348
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	349 PyDoc_STRVAR(stringio_truncate_doc,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	350 "Truncate size to pos.\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	351 "\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	352 "The pos argument defaults to the current file position, as\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	353 "returned by tell(). Imply an absolute seek to pos.\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	354 "Returns the new absolute position.\n");
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	355
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	356 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	357 stringio_truncate(stringio self, PyObject args)
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	358 {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	359 Py_ssize_t size;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	360 PyObject *arg = Py_None;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	361
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	362 CHECK_INITIALIZED(self);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	363 if (!PyArg_ParseTuple(args, "\|O:truncate", &arg))
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	364 return NULL;
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	365 CHECK_CLOSED(self);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	366
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	367 if (PyNumber_Check(arg)) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	368 size = PyNumber_AsSsize_t(arg, PyExc_OverflowError);
49353 598d19936186 check for errors after PyLong_Ssize_t Benjamin Peterson <benjamin@python.org> parents: 47625 diff changeset	369 if (size == -1 && PyErr_Occurred())
598d19936186 check for errors after PyLong_Ssize_t Benjamin Peterson <benjamin@python.org> parents: 47625 diff changeset	370 return NULL;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	371 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	372 else if (arg == Py_None) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	373 /* Truncate to current position if no argument is passed. */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	374 size = self->pos;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	375 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	376 else {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	377 PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	378 Py_TYPE(arg)->tp_name);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	379 return NULL;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	380 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	381
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	382 if (size < 0) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	383 PyErr_Format(PyExc_ValueError,
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	384 "Negative size value %zd", size);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	385 return NULL;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	386 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	387
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	388 if (size < self->string_size) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	389 if (resize_buffer(self, size) < 0)
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	390 return NULL;
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	391 self->string_size = size;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	392 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	393 self->pos = size;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	394
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	395 return PyLong_FromSsize_t(size);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	396 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	397
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	398 PyDoc_STRVAR(stringio_seek_doc,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	399 "Change stream position.\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	400 "\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	401 "Seek to character offset pos relative to position indicated by whence:\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	402 " 0 Start of stream (the default). pos should be >= 0;\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	403 " 1 Current position - pos must be 0;\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	404 " 2 End of stream - pos must be 0.\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	405 "Returns the new absolute position.\n");
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	406
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	407 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	408 stringio_seek(stringio self, PyObject args)
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	409 {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	410 Py_ssize_t pos;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	411 int mode = 0;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	412
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	413 CHECK_INITIALIZED(self);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	414 if (!PyArg_ParseTuple(args, "n\|i:seek", &pos, &mode))
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	415 return NULL;
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	416 CHECK_CLOSED(self);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	417
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	418 if (mode != 0 && mode != 1 && mode != 2) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	419 PyErr_Format(PyExc_ValueError,
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	420 "Invalid whence (%i, should be 0, 1 or 2)", mode);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	421 return NULL;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	422 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	423 else if (pos < 0 && mode == 0) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	424 PyErr_Format(PyExc_ValueError,
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	425 "Negative seek position %zd", pos);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	426 return NULL;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	427 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	428 else if (mode != 0 && pos != 0) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	429 PyErr_SetString(PyExc_IOError,
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	430 "Can't do nonzero cur-relative seeks");
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	431 return NULL;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	432 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	433
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	434 /* mode 0: offset relative to beginning of the string.
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	435 mode 1: no change to current position.
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	436 mode 2: change position to end of file. */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	437 if (mode == 1) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	438 pos = self->pos;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	439 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	440 else if (mode == 2) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	441 pos = self->string_size;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	442 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	443
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	444 self->pos = pos;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	445
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	446 return PyLong_FromSsize_t(self->pos);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	447 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	448
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	449 PyDoc_STRVAR(stringio_write_doc,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	450 "Write string to file.\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	451 "\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	452 "Returns the number of characters written, which is always equal to\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	453 "the length of the string.\n");
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	454
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	455 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	456 stringio_write(stringio self, PyObject obj)
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	457 {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	458 Py_ssize_t size;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	459
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	460 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	461 if (!PyUnicode_Check(obj)) {
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	462 PyErr_Format(PyExc_TypeError, "string argument expected, got '%s'",
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	463 Py_TYPE(obj)->tp_name);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	464 return NULL;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	465 }
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	466 CHECK_CLOSED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	467 size = PyUnicode_GET_SIZE(obj);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	468
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	469 if (size > 0 && write_str(self, obj) < 0)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	470 return NULL;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	471
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	472 return PyLong_FromSsize_t(size);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	473 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	474
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	475 PyDoc_STRVAR(stringio_close_doc,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	476 "Close the IO object. Attempting any further operation after the\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	477 "object is closed will raise a ValueError.\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	478 "\n"
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	479 "This method has no effect if the file is already closed.\n");
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	480
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	481 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	482 stringio_close(stringio *self)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	483 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	484 self->closed = 1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	485 /* Free up some memory */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	486 if (resize_buffer(self, 0) < 0)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	487 return NULL;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	488 Py_CLEAR(self->readnl);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	489 Py_CLEAR(self->writenl);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	490 Py_CLEAR(self->decoder);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	491 Py_RETURN_NONE;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	492 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	493
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	494 static int
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	495 stringio_traverse(stringio self, visitproc visit, void arg)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	496 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	497 Py_VISIT(self->dict);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	498 return 0;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	499 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	500
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	501 static int
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	502 stringio_clear(stringio *self)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	503 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	504 Py_CLEAR(self->dict);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	505 return 0;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	506 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	507
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	508 static void
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	509 stringio_dealloc(stringio *self)
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	510 {
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	511 _PyObject_GC_UNTRACK(self);
55395 d747d52f9a66 Issue #6242: Fix deallocator of io.StringIO and io.BytesIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 54752 diff changeset	512 self->ok = 0;
d747d52f9a66 Issue #6242: Fix deallocator of io.StringIO and io.BytesIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 54752 diff changeset	513 if (self->buf) {
d747d52f9a66 Issue #6242: Fix deallocator of io.StringIO and io.BytesIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 54752 diff changeset	514 PyMem_Free(self->buf);
d747d52f9a66 Issue #6242: Fix deallocator of io.StringIO and io.BytesIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 54752 diff changeset	515 self->buf = NULL;
d747d52f9a66 Issue #6242: Fix deallocator of io.StringIO and io.BytesIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 54752 diff changeset	516 }
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	517 Py_CLEAR(self->readnl);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	518 Py_CLEAR(self->writenl);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	519 Py_CLEAR(self->decoder);
55395 d747d52f9a66 Issue #6242: Fix deallocator of io.StringIO and io.BytesIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 54752 diff changeset	520 Py_CLEAR(self->dict);
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	521 if (self->weakreflist != NULL)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	522 PyObject_ClearWeakRefs((PyObject *) self);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	523 Py_TYPE(self)->tp_free(self);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	524 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	525
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	526 static PyObject *
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	527 stringio_new(PyTypeObject type, PyObject args, PyObject *kwds)
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	528 {
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	529 stringio *self;
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	530
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	531 assert(type != NULL && type->tp_alloc != NULL);
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	532 self = (stringio *)type->tp_alloc(type, 0);
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	533 if (self == NULL)
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	534 return NULL;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	535
55398 538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	536 /* tp_alloc initializes all the fields to zero. So we don't have to
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	537 initialize them here. */
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	538
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	539 self->buf = (Py_UNICODE *)PyMem_Malloc(0);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	540 if (self->buf == NULL) {
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	541 Py_DECREF(self);
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	542 return PyErr_NoMemory();
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	543 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	544
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	545 return (PyObject *)self;
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	546 }
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	547
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	548 static int
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	549 stringio_init(stringio self, PyObject args, PyObject *kwds)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	550 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	551 char *kwlist[] = {"initial_value", "newline", NULL};
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	552 PyObject *value = NULL;
55397 d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	553 PyObject *newline_obj = NULL;
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	554 char *newline = "\n";
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	555
55397 d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	556 if (!PyArg_ParseTupleAndKeywords(args, kwds, "\|OO:__init__", kwlist,
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	557 &value, &newline_obj))
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	558 return -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	559
55397 d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	560 /* Parse the newline argument. This used to be done with the 'z'
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	561 specifier, however this allowed any object with the buffer interface to
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	562 be converted. Thus we have to parse it manually since we only want to
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	563 allow unicode objects or None. */
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	564 if (newline_obj == Py_None) {
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	565 newline = NULL;
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	566 }
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	567 else if (newline_obj) {
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	568 if (!PyUnicode_Check(newline_obj)) {
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	569 PyErr_Format(PyExc_TypeError,
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	570 "newline must be str or None, not %.200s",
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	571 Py_TYPE(newline_obj)->tp_name);
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	572 return -1;
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	573 }
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	574 newline = _PyUnicode_AsString(newline_obj);
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	575 if (newline == NULL)
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	576 return -1;
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	577 }
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	578
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	579 if (newline && newline[0] != '\0'
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	580 && !(newline[0] == '\n' && newline[1] == '\0')
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	581 && !(newline[0] == '\r' && newline[1] == '\0')
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	582 && !(newline[0] == '\r' && newline[1] == '\n' && newline[2] == '\0')) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	583 PyErr_Format(PyExc_ValueError,
55397 d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	584 "illegal newline value: %R", newline_obj);
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	585 return -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	586 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	587 if (value && value != Py_None && !PyUnicode_Check(value)) {
55397 d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	588 PyErr_Format(PyExc_TypeError,
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	589 "initial_value must be str or None, not %.200s",
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	590 Py_TYPE(value)->tp_name);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	591 return -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	592 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	593
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	594 self->ok = 0;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	595
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	596 Py_CLEAR(self->readnl);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	597 Py_CLEAR(self->writenl);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	598 Py_CLEAR(self->decoder);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	599
55397 d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	600 assert((newline != NULL && newline_obj != Py_None) \|\|
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	601 (newline == NULL && newline_obj == Py_None));
d682ca888e27 Issue #6241: Better type checking for the arguments of io.StringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55395 diff changeset	602
55398 538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	603 assert((newline != NULL && newline_obj != Py_None) \|\|
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	604 (newline == NULL && newline_obj == Py_None));
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	605
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	606 if (newline) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	607 self->readnl = PyUnicode_FromString(newline);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	608 if (self->readnl == NULL)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	609 return -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	610 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	611 self->readuniversal = (newline == NULL \|\| newline[0] == '\0');
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	612 self->readtranslate = (newline == NULL);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	613 /* If newline == "", we don't translate anything.
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	614 If newline == "\n" or newline == None, we translate to "\n", which is
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	615 a no-op.
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	616 (for newline == None, TextIOWrapper translates to os.sepline, but it
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	617 is pointless for StringIO)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	618 */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	619 if (newline != NULL && newline[0] == '\r') {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	620 self->writenl = self->readnl;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	621 Py_INCREF(self->writenl);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	622 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	623
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	624 if (self->readuniversal) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	625 self->decoder = PyObject_CallFunction(
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	626 (PyObject *)&PyIncrementalNewlineDecoder_Type,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	627 "Oi", Py_None, (int) self->readtranslate);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	628 if (self->decoder == NULL)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	629 return -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	630 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	631
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	632 /* Now everything is set up, resize buffer to size of initial value,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	633 and copy it */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	634 self->string_size = 0;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	635 if (value && value != Py_None) {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	636 Py_ssize_t len = PyUnicode_GetSize(value);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	637 /* This is a heuristic, for newline translation might change
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	638 the string length. */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	639 if (resize_buffer(self, len) < 0)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	640 return -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	641 self->pos = 0;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	642 if (write_str(self, value) < 0)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	643 return -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	644 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	645 else {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	646 if (resize_buffer(self, 0) < 0)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	647 return -1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	648 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	649 self->pos = 0;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	650
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	651 self->closed = 0;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	652 self->ok = 1;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	653 return 0;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	654 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	655
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	656 /* Properties and pseudo-properties */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	657 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	658 stringio_seekable(stringio self, PyObject args)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	659 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	660 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	661 Py_RETURN_TRUE;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	662 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	663
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	664 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	665 stringio_readable(stringio self, PyObject args)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	666 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	667 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	668 Py_RETURN_TRUE;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	669 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	670
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	671 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	672 stringio_writable(stringio self, PyObject args)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	673 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	674 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	675 Py_RETURN_TRUE;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	676 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	677
55398 538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	678 /* Pickling support.
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	679
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	680 The implementation of __getstate__ is similar to the one for BytesIO,
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	681 except that we also save the newline parameter. For __setstate__ and unlike
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	682 BytesIO, we call __init__ to restore the object's state. Doing so allows us
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	683 to avoid decoding the complex newline state while keeping the object
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	684 representation compact.
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	685
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	686 See comment in bytesio.c regarding why only pickle protocols and onward are
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	687 supported.
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	688 */
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	689
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	690 static PyObject *
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	691 stringio_getstate(stringio *self)
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	692 {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	693 PyObject *initvalue = stringio_getvalue(self);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	694 PyObject *dict;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	695 PyObject *state;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	696
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	697 if (initvalue == NULL)
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	698 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	699 if (self->dict == NULL) {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	700 Py_INCREF(Py_None);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	701 dict = Py_None;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	702 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	703 else {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	704 dict = PyDict_Copy(self->dict);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	705 if (dict == NULL)
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	706 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	707 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	708
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	709 state = Py_BuildValue("(OOnN)", initvalue,
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	710 self->readnl ? self->readnl : Py_None,
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	711 self->pos, dict);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	712 Py_DECREF(initvalue);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	713 return state;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	714 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	715
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	716 static PyObject *
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	717 stringio_setstate(stringio self, PyObject state)
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	718 {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	719 PyObject *initarg;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	720 PyObject *position_obj;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	721 PyObject *dict;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	722 Py_ssize_t pos;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	723
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	724 assert(state != NULL);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	725 CHECK_CLOSED(self);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	726
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	727 /* We allow the state tuple to be longer than 4, because we may need
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	728 someday to extend the object's state without breaking
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	729 backward-compatibility. */
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	730 if (!PyTuple_Check(state) \|\| Py_SIZE(state) < 4) {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	731 PyErr_Format(PyExc_TypeError,
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	732 "%.200s.__setstate__ argument should be 4-tuple, got %.200s",
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	733 Py_TYPE(self)->tp_name, Py_TYPE(state)->tp_name);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	734 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	735 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	736
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	737 /* Initialize the object's state. */
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	738 initarg = PyTuple_GetSlice(state, 0, 2);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	739 if (initarg == NULL)
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	740 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	741 if (stringio_init(self, initarg, NULL) < 0) {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	742 Py_DECREF(initarg);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	743 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	744 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	745 Py_DECREF(initarg);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	746
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	747 /* Restore the buffer state. Even if __init__ did initialize the buffer,
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	748 we have to initialize it again since __init__ may translates the
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	749 newlines in the inital_value string. We clearly do not want that
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	750 because the string value in the state tuple has already been translated
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	751 once by __init__. So we do not take any chance and replace object's
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	752 buffer completely. */
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	753 {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	754 Py_UNICODE *buf = PyUnicode_AS_UNICODE(PyTuple_GET_ITEM(state, 0));
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	755 Py_ssize_t bufsize = PyUnicode_GET_SIZE(PyTuple_GET_ITEM(state, 0));
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	756 if (resize_buffer(self, bufsize) < 0)
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	757 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	758 memcpy(self->buf, buf, bufsize * sizeof(Py_UNICODE));
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	759 self->string_size = bufsize;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	760 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	761
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	762 /* Set carefully the position value. Alternatively, we could use the seek
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	763 method instead of modifying self->pos directly to better protect the
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	764 object internal state against errneous (or malicious) inputs. */
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	765 position_obj = PyTuple_GET_ITEM(state, 2);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	766 if (!PyLong_Check(position_obj)) {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	767 PyErr_Format(PyExc_TypeError,
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	768 "third item of state must be an integer, got %.200s",
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	769 Py_TYPE(position_obj)->tp_name);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	770 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	771 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	772 pos = PyLong_AsSsize_t(position_obj);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	773 if (pos == -1 && PyErr_Occurred())
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	774 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	775 if (pos < 0) {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	776 PyErr_SetString(PyExc_ValueError,
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	777 "position value cannot be negative");
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	778 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	779 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	780 self->pos = pos;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	781
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	782 /* Set the dictionary of the instance variables. */
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	783 dict = PyTuple_GET_ITEM(state, 3);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	784 if (dict != Py_None) {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	785 if (!PyDict_Check(dict)) {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	786 PyErr_Format(PyExc_TypeError,
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	787 "fourth item of state should be a dict, got a %.200s",
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	788 Py_TYPE(dict)->tp_name);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	789 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	790 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	791 if (self->dict) {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	792 /* Alternatively, we could replace the internal dictionary
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	793 completely. However, it seems more practical to just update it. */
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	794 if (PyDict_Update(self->dict, dict) < 0)
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	795 return NULL;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	796 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	797 else {
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	798 Py_INCREF(dict);
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	799 self->dict = dict;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	800 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	801 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	802
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	803 Py_RETURN_NONE;
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	804 }
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	805
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	806
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	807 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	808 stringio_closed(stringio self, void context)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	809 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	810 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	811 return PyBool_FromLong(self->closed);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	812 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	813
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	814 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	815 stringio_line_buffering(stringio self, void context)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	816 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	817 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	818 CHECK_CLOSED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	819 Py_RETURN_FALSE;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	820 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	821
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	822 static PyObject *
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	823 stringio_newlines(stringio self, void context)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	824 {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	825 CHECK_INITIALIZED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	826 CHECK_CLOSED(self);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	827 if (self->decoder == NULL)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	828 Py_RETURN_NONE;
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	829 return PyObject_GetAttr(self->decoder, _PyIO_str_newlines);
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	830 }
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	831
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	832 static struct PyMethodDef stringio_methods[] = {
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	833 {"close", (PyCFunction)stringio_close, METH_NOARGS, stringio_close_doc},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	834 {"getvalue", (PyCFunction)stringio_getvalue, METH_VARARGS, stringio_getvalue_doc},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	835 {"read", (PyCFunction)stringio_read, METH_VARARGS, stringio_read_doc},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	836 {"readline", (PyCFunction)stringio_readline, METH_VARARGS, stringio_readline_doc},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	837 {"tell", (PyCFunction)stringio_tell, METH_NOARGS, stringio_tell_doc},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	838 {"truncate", (PyCFunction)stringio_truncate, METH_VARARGS, stringio_truncate_doc},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	839 {"seek", (PyCFunction)stringio_seek, METH_VARARGS, stringio_seek_doc},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	840 {"write", (PyCFunction)stringio_write, METH_O, stringio_write_doc},
55398 538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	841
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	842 {"seekable", (PyCFunction)stringio_seekable, METH_NOARGS},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	843 {"readable", (PyCFunction)stringio_readable, METH_NOARGS},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	844 {"writable", (PyCFunction)stringio_writable, METH_NOARGS},
55398 538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	845
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	846 {"__getstate__", (PyCFunction)stringio_getstate, METH_NOARGS},
538850b38931 Issue #6218: Make io.BytesIO and io.StringIO picklable. Alexandre Vassalotti <alexandre@peadrop.com> parents: 55397 diff changeset	847 {"__setstate__", (PyCFunction)stringio_setstate, METH_O},
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	848 {NULL, NULL} /* sentinel */
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	849 };
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	850
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	851 static PyGetSetDef stringio_getset[] = {
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	852 {"closed", (getter)stringio_closed, NULL, NULL},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	853 {"newlines", (getter)stringio_newlines, NULL, NULL},
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	854 /* (following comments straight off of the original Python wrapper:)
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	855 XXX Cruft to support the TextIOWrapper API. This would only
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	856 be meaningful if StringIO supported the buffer attribute.
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	857 Hopefully, a better solution, than adding these pseudo-attributes,
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	858 will be found.
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	859 */
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	860 {"line_buffering", (getter)stringio_line_buffering, NULL, NULL},
53259 b7b8fbd010ca use NULL for the ends of tables Benjamin Peterson <benjamin@python.org> parents: 52843 diff changeset	861 {NULL}
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	862 };
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	863
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	864 PyTypeObject PyStringIO_Type = {
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	865 PyVarObject_HEAD_INIT(NULL, 0)
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	866 "_io.StringIO", /tp_name/
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	867 sizeof(stringio), /tp_basicsize/
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	868 0, /tp_itemsize/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	869 (destructor)stringio_dealloc, /tp_dealloc/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	870 0, /tp_print/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	871 0, /tp_getattr/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	872 0, /tp_setattr/
51271 87fbbf22adf3 Merged revisions 69214 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 49360 diff changeset	873 0, /tp_reserved/
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	874 0, /tp_repr/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	875 0, /tp_as_number/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	876 0, /tp_as_sequence/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	877 0, /tp_as_mapping/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	878 0, /tp_hash/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	879 0, /tp_call/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	880 0, /tp_str/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	881 0, /tp_getattro/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	882 0, /tp_setattro/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	883 0, /tp_as_buffer/
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	884 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_BASETYPE
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	885 \| Py_TPFLAGS_HAVE_GC, /tp_flags/
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	886 stringio_doc, /tp_doc/
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	887 (traverseproc)stringio_traverse, /tp_traverse/
3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	888 (inquiry)stringio_clear, /tp_clear/
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	889 0, /tp_richcompare/
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	890 offsetof(stringio, weakreflist), /tp_weaklistoffset/
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	891 0, /tp_iter/
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	892 (iternextfunc)stringio_iternext, /tp_iternext/
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	893 stringio_methods, /tp_methods/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	894 0, /tp_members/
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	895 stringio_getset, /tp_getset/
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	896 0, /tp_base/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	897 0, /tp_dict/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	898 0, /tp_descr_get/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	899 0, /tp_descr_set/
54710 fcbcd931338b move to a naming scheme with all lowercase and underscores Benjamin Peterson <benjamin@python.org> parents: 54599 diff changeset	900 offsetof(stringio, dict), /tp_dictoffset/
51991 3049ac17e256 merge the io-c branch: C implementation of the io module Benjamin Peterson <benjamin@python.org> parents: 51271 diff changeset	901 (initproc)stringio_init, /tp_init/
47625 1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	902 0, /tp_alloc/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	903 stringio_new, /tp_new/
1bfea956d0d7 Issue 2918: Merge StringIO and cStringIO. Alexandre Vassalotti <alexandre@peadrop.com> parents: diff changeset	904 };

Mercurial > cpython-lru_cache-weakref

annotate Modules/_io/stringio.c @ 57114:d3a81051663b