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-rw-r--r--Objects/bytearrayobject.c3379
-rw-r--r--Objects/bytesobject.c7553
-rw-r--r--Objects/stringobject.c5176
3 files changed, 8054 insertions, 8054 deletions
diff --git a/Objects/bytearrayobject.c b/Objects/bytearrayobject.c
new file mode 100644
index 0000000..6e5df19
--- /dev/null
+++ b/Objects/bytearrayobject.c
@@ -0,0 +1,3379 @@
+/* PyBytes (bytearray) implementation */
+
+#define PY_SSIZE_T_CLEAN
+#include "Python.h"
+#include "structmember.h"
+#include "bytes_methods.h"
+
+static PyByteArrayObject *nullbytes = NULL;
+
+void
+PyByteArray_Fini(void)
+{
+ Py_CLEAR(nullbytes);
+}
+
+int
+PyByteArray_Init(void)
+{
+ nullbytes = PyObject_New(PyByteArrayObject, &PyByteArray_Type);
+ if (nullbytes == NULL)
+ return 0;
+ nullbytes->ob_bytes = NULL;
+ Py_SIZE(nullbytes) = nullbytes->ob_alloc = 0;
+ nullbytes->ob_exports = 0;
+ return 1;
+}
+
+/* end nullbytes support */
+
+/* Helpers */
+
+static int
+_getbytevalue(PyObject* arg, int *value)
+{
+ long face_value;
+
+ if (PyInt_Check(arg)) {
+ face_value = PyInt_AsLong(arg);
+ if (face_value < 0 || face_value >= 256) {
+ PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
+ return 0;
+ }
+ }
+ else if (PyBytes_CheckExact(arg)) {
+ if (Py_SIZE(arg) != 1) {
+ PyErr_SetString(PyExc_ValueError, "string must be of size 1");
+ return 0;
+ }
+ face_value = Py_CHARMASK(((PyBytesObject*)arg)->ob_sval[0]);
+ }
+ else {
+ PyErr_Format(PyExc_TypeError, "an integer or string of size 1 is required");
+ return 0;
+ }
+
+ *value = face_value;
+ return 1;
+}
+
+static Py_ssize_t
+bytes_buffer_getreadbuf(PyByteArrayObject *self, Py_ssize_t index, const void **ptr)
+{
+ if ( index != 0 ) {
+ PyErr_SetString(PyExc_SystemError,
+ "accessing non-existent bytes segment");
+ return -1;
+ }
+ *ptr = (void *)self->ob_bytes;
+ return Py_SIZE(self);
+}
+
+static Py_ssize_t
+bytes_buffer_getwritebuf(PyByteArrayObject *self, Py_ssize_t index, const void **ptr)
+{
+ if ( index != 0 ) {
+ PyErr_SetString(PyExc_SystemError,
+ "accessing non-existent bytes segment");
+ return -1;
+ }
+ *ptr = (void *)self->ob_bytes;
+ return Py_SIZE(self);
+}
+
+static Py_ssize_t
+bytes_buffer_getsegcount(PyByteArrayObject *self, Py_ssize_t *lenp)
+{
+ if ( lenp )
+ *lenp = Py_SIZE(self);
+ return 1;
+}
+
+static Py_ssize_t
+bytes_buffer_getcharbuf(PyByteArrayObject *self, Py_ssize_t index, const char **ptr)
+{
+ if ( index != 0 ) {
+ PyErr_SetString(PyExc_SystemError,
+ "accessing non-existent bytes segment");
+ return -1;
+ }
+ *ptr = self->ob_bytes;
+ return Py_SIZE(self);
+}
+
+static int
+bytes_getbuffer(PyByteArrayObject *obj, Py_buffer *view, int flags)
+{
+ int ret;
+ void *ptr;
+ if (view == NULL) {
+ obj->ob_exports++;
+ return 0;
+ }
+ if (obj->ob_bytes == NULL)
+ ptr = "";
+ else
+ ptr = obj->ob_bytes;
+ ret = PyBuffer_FillInfo(view, ptr, Py_SIZE(obj), 0, flags);
+ if (ret >= 0) {
+ obj->ob_exports++;
+ }
+ return ret;
+}
+
+static void
+bytes_releasebuffer(PyByteArrayObject *obj, Py_buffer *view)
+{
+ obj->ob_exports--;
+}
+
+static Py_ssize_t
+_getbuffer(PyObject *obj, Py_buffer *view)
+{
+ PyBufferProcs *buffer = Py_TYPE(obj)->tp_as_buffer;
+
+ if (buffer == NULL || buffer->bf_getbuffer == NULL)
+ {
+ PyErr_Format(PyExc_TypeError,
+ "Type %.100s doesn't support the buffer API",
+ Py_TYPE(obj)->tp_name);
+ return -1;
+ }
+
+ if (buffer->bf_getbuffer(obj, view, PyBUF_SIMPLE) < 0)
+ return -1;
+ return view->len;
+}
+
+/* Direct API functions */
+
+PyObject *
+PyByteArray_FromObject(PyObject *input)
+{
+ return PyObject_CallFunctionObjArgs((PyObject *)&PyByteArray_Type,
+ input, NULL);
+}
+
+PyObject *
+PyByteArray_FromStringAndSize(const char *bytes, Py_ssize_t size)
+{
+ PyByteArrayObject *new;
+ Py_ssize_t alloc;
+
+ if (size < 0) {
+ PyErr_SetString(PyExc_SystemError,
+ "Negative size passed to PyByteArray_FromStringAndSize");
+ return NULL;
+ }
+
+ new = PyObject_New(PyByteArrayObject, &PyByteArray_Type);
+ if (new == NULL)
+ return NULL;
+
+ if (size == 0) {
+ new->ob_bytes = NULL;
+ alloc = 0;
+ }
+ else {
+ alloc = size + 1;
+ new->ob_bytes = PyMem_Malloc(alloc);
+ if (new->ob_bytes == NULL) {
+ Py_DECREF(new);
+ return PyErr_NoMemory();
+ }
+ if (bytes != NULL)
+ memcpy(new->ob_bytes, bytes, size);
+ new->ob_bytes[size] = '\0'; /* Trailing null byte */
+ }
+ Py_SIZE(new) = size;
+ new->ob_alloc = alloc;
+ new->ob_exports = 0;
+
+ return (PyObject *)new;
+}
+
+Py_ssize_t
+PyByteArray_Size(PyObject *self)
+{
+ assert(self != NULL);
+ assert(PyByteArray_Check(self));
+
+ return PyByteArray_GET_SIZE(self);
+}
+
+char *
+PyByteArray_AsString(PyObject *self)
+{
+ assert(self != NULL);
+ assert(PyByteArray_Check(self));
+
+ return PyByteArray_AS_STRING(self);
+}
+
+int
+PyByteArray_Resize(PyObject *self, Py_ssize_t size)
+{
+ void *sval;
+ Py_ssize_t alloc = ((PyByteArrayObject *)self)->ob_alloc;
+
+ assert(self != NULL);
+ assert(PyByteArray_Check(self));
+ assert(size >= 0);
+
+ if (size < alloc / 2) {
+ /* Major downsize; resize down to exact size */
+ alloc = size + 1;
+ }
+ else if (size < alloc) {
+ /* Within allocated size; quick exit */
+ Py_SIZE(self) = size;
+ ((PyByteArrayObject *)self)->ob_bytes[size] = '\0'; /* Trailing null */
+ return 0;
+ }
+ else if (size <= alloc * 1.125) {
+ /* Moderate upsize; overallocate similar to list_resize() */
+ alloc = size + (size >> 3) + (size < 9 ? 3 : 6);
+ }
+ else {
+ /* Major upsize; resize up to exact size */
+ alloc = size + 1;
+ }
+
+ if (((PyByteArrayObject *)self)->ob_exports > 0) {
+ /*
+ fprintf(stderr, "%d: %s", ((PyByteArrayObject *)self)->ob_exports,
+ ((PyByteArrayObject *)self)->ob_bytes);
+ */
+ PyErr_SetString(PyExc_BufferError,
+ "Existing exports of data: object cannot be re-sized");
+ return -1;
+ }
+
+ sval = PyMem_Realloc(((PyByteArrayObject *)self)->ob_bytes, alloc);
+ if (sval == NULL) {
+ PyErr_NoMemory();
+ return -1;
+ }
+
+ ((PyByteArrayObject *)self)->ob_bytes = sval;
+ Py_SIZE(self) = size;
+ ((PyByteArrayObject *)self)->ob_alloc = alloc;
+ ((PyByteArrayObject *)self)->ob_bytes[size] = '\0'; /* Trailing null byte */
+
+ return 0;
+}
+
+PyObject *
+PyByteArray_Concat(PyObject *a, PyObject *b)
+{
+ Py_ssize_t size;
+ Py_buffer va, vb;
+ PyByteArrayObject *result = NULL;
+
+ va.len = -1;
+ vb.len = -1;
+ if (_getbuffer(a, &va) < 0 ||
+ _getbuffer(b, &vb) < 0) {
+ PyErr_Format(PyExc_TypeError, "can't concat %.100s to %.100s",
+ Py_TYPE(a)->tp_name, Py_TYPE(b)->tp_name);
+ goto done;
+ }
+
+ size = va.len + vb.len;
+ if (size < 0) {
+ return PyErr_NoMemory();
+ goto done;
+ }
+
+ result = (PyByteArrayObject *) PyByteArray_FromStringAndSize(NULL, size);
+ if (result != NULL) {
+ memcpy(result->ob_bytes, va.buf, va.len);
+ memcpy(result->ob_bytes + va.len, vb.buf, vb.len);
+ }
+
+ done:
+ if (va.len != -1)
+ PyObject_ReleaseBuffer(a, &va);
+ if (vb.len != -1)
+ PyObject_ReleaseBuffer(b, &vb);
+ return (PyObject *)result;
+}
+
+/* Functions stuffed into the type object */
+
+static Py_ssize_t
+bytes_length(PyByteArrayObject *self)
+{
+ return Py_SIZE(self);
+}
+
+static PyObject *
+bytes_iconcat(PyByteArrayObject *self, PyObject *other)
+{
+ Py_ssize_t mysize;
+ Py_ssize_t size;
+ Py_buffer vo;
+
+ if (_getbuffer(other, &vo) < 0) {
+ PyErr_Format(PyExc_TypeError, "can't concat %.100s to %.100s",
+ Py_TYPE(other)->tp_name, Py_TYPE(self)->tp_name);
+ return NULL;
+ }
+
+ mysize = Py_SIZE(self);
+ size = mysize + vo.len;
+ if (size < 0) {
+ PyObject_ReleaseBuffer(other, &vo);
+ return PyErr_NoMemory();
+ }
+ if (size < self->ob_alloc) {
+ Py_SIZE(self) = size;
+ self->ob_bytes[Py_SIZE(self)] = '\0'; /* Trailing null byte */
+ }
+ else if (PyByteArray_Resize((PyObject *)self, size) < 0) {
+ PyObject_ReleaseBuffer(other, &vo);
+ return NULL;
+ }
+ memcpy(self->ob_bytes + mysize, vo.buf, vo.len);
+ PyObject_ReleaseBuffer(other, &vo);
+ Py_INCREF(self);
+ return (PyObject *)self;
+}
+
+static PyObject *
+bytes_repeat(PyByteArrayObject *self, Py_ssize_t count)
+{
+ PyByteArrayObject *result;
+ Py_ssize_t mysize;
+ Py_ssize_t size;
+
+ if (count < 0)
+ count = 0;
+ mysize = Py_SIZE(self);
+ size = mysize * count;
+ if (count != 0 && size / count != mysize)
+ return PyErr_NoMemory();
+ result = (PyByteArrayObject *)PyByteArray_FromStringAndSize(NULL, size);
+ if (result != NULL && size != 0) {
+ if (mysize == 1)
+ memset(result->ob_bytes, self->ob_bytes[0], size);
+ else {
+ Py_ssize_t i;
+ for (i = 0; i < count; i++)
+ memcpy(result->ob_bytes + i*mysize, self->ob_bytes, mysize);
+ }
+ }
+ return (PyObject *)result;
+}
+
+static PyObject *
+bytes_irepeat(PyByteArrayObject *self, Py_ssize_t count)
+{
+ Py_ssize_t mysize;
+ Py_ssize_t size;
+
+ if (count < 0)
+ count = 0;
+ mysize = Py_SIZE(self);
+ size = mysize * count;
+ if (count != 0 && size / count != mysize)
+ return PyErr_NoMemory();
+ if (size < self->ob_alloc) {
+ Py_SIZE(self) = size;
+ self->ob_bytes[Py_SIZE(self)] = '\0'; /* Trailing null byte */
+ }
+ else if (PyByteArray_Resize((PyObject *)self, size) < 0)
+ return NULL;
+
+ if (mysize == 1)
+ memset(self->ob_bytes, self->ob_bytes[0], size);
+ else {
+ Py_ssize_t i;
+ for (i = 1; i < count; i++)
+ memcpy(self->ob_bytes + i*mysize, self->ob_bytes, mysize);
+ }
+
+ Py_INCREF(self);
+ return (PyObject *)self;
+}
+
+static PyObject *
+bytes_getitem(PyByteArrayObject *self, Py_ssize_t i)
+{
+ if (i < 0)
+ i += Py_SIZE(self);
+ if (i < 0 || i >= Py_SIZE(self)) {
+ PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
+ return NULL;
+ }
+ return PyInt_FromLong((unsigned char)(self->ob_bytes[i]));
+}
+
+static PyObject *
+bytes_subscript(PyByteArrayObject *self, PyObject *item)
+{
+ if (PyIndex_Check(item)) {
+ Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+
+ if (i == -1 && PyErr_Occurred())
+ return NULL;
+
+ if (i < 0)
+ i += PyByteArray_GET_SIZE(self);
+
+ if (i < 0 || i >= Py_SIZE(self)) {
+ PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
+ return NULL;
+ }
+ return PyInt_FromLong((unsigned char)(self->ob_bytes[i]));
+ }
+ else if (PySlice_Check(item)) {
+ Py_ssize_t start, stop, step, slicelength, cur, i;
+ if (PySlice_GetIndicesEx((PySliceObject *)item,
+ PyByteArray_GET_SIZE(self),
+ &start, &stop, &step, &slicelength) < 0) {
+ return NULL;
+ }
+
+ if (slicelength <= 0)
+ return PyByteArray_FromStringAndSize("", 0);
+ else if (step == 1) {
+ return PyByteArray_FromStringAndSize(self->ob_bytes + start,
+ slicelength);
+ }
+ else {
+ char *source_buf = PyByteArray_AS_STRING(self);
+ char *result_buf = (char *)PyMem_Malloc(slicelength);
+ PyObject *result;
+
+ if (result_buf == NULL)
+ return PyErr_NoMemory();
+
+ for (cur = start, i = 0; i < slicelength;
+ cur += step, i++) {
+ result_buf[i] = source_buf[cur];
+ }
+ result = PyByteArray_FromStringAndSize(result_buf, slicelength);
+ PyMem_Free(result_buf);
+ return result;
+ }
+ }
+ else {
+ PyErr_SetString(PyExc_TypeError, "bytearray indices must be integers");
+ return NULL;
+ }
+}
+
+static int
+bytes_setslice(PyByteArrayObject *self, Py_ssize_t lo, Py_ssize_t hi,
+ PyObject *values)
+{
+ Py_ssize_t avail, needed;
+ void *bytes;
+ Py_buffer vbytes;
+ int res = 0;
+
+ vbytes.len = -1;
+ if (values == (PyObject *)self) {
+ /* Make a copy and call this function recursively */
+ int err;
+ values = PyByteArray_FromObject(values);
+ if (values == NULL)
+ return -1;
+ err = bytes_setslice(self, lo, hi, values);
+ Py_DECREF(values);
+ return err;
+ }
+ if (values == NULL) {
+ /* del b[lo:hi] */
+ bytes = NULL;
+ needed = 0;
+ }
+ else {
+ if (_getbuffer(values, &vbytes) < 0) {
+ PyErr_Format(PyExc_TypeError,
+ "can't set bytes slice from %.100s",
+ Py_TYPE(values)->tp_name);
+ return -1;
+ }
+ needed = vbytes.len;
+ bytes = vbytes.buf;
+ }
+
+ if (lo < 0)
+ lo = 0;
+ if (hi < lo)
+ hi = lo;
+ if (hi > Py_SIZE(self))
+ hi = Py_SIZE(self);
+
+ avail = hi - lo;
+ if (avail < 0)
+ lo = hi = avail = 0;
+
+ if (avail != needed) {
+ if (avail > needed) {
+ /*
+ 0 lo hi old_size
+ | |<----avail----->|<-----tomove------>|
+ | |<-needed->|<-----tomove------>|
+ 0 lo new_hi new_size
+ */
+ memmove(self->ob_bytes + lo + needed, self->ob_bytes + hi,
+ Py_SIZE(self) - hi);
+ }
+ /* XXX(nnorwitz): need to verify this can't overflow! */
+ if (PyByteArray_Resize((PyObject *)self,
+ Py_SIZE(self) + needed - avail) < 0) {
+ res = -1;
+ goto finish;
+ }
+ if (avail < needed) {
+ /*
+ 0 lo hi old_size
+ | |<-avail->|<-----tomove------>|
+ | |<----needed---->|<-----tomove------>|
+ 0 lo new_hi new_size
+ */
+ memmove(self->ob_bytes + lo + needed, self->ob_bytes + hi,
+ Py_SIZE(self) - lo - needed);
+ }
+ }
+
+ if (needed > 0)
+ memcpy(self->ob_bytes + lo, bytes, needed);
+
+
+ finish:
+ if (vbytes.len != -1)
+ PyObject_ReleaseBuffer(values, &vbytes);
+ return res;
+}
+
+static int
+bytes_setitem(PyByteArrayObject *self, Py_ssize_t i, PyObject *value)
+{
+ int ival;
+
+ if (i < 0)
+ i += Py_SIZE(self);
+
+ if (i < 0 || i >= Py_SIZE(self)) {
+ PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
+ return -1;
+ }
+
+ if (value == NULL)
+ return bytes_setslice(self, i, i+1, NULL);
+
+ if (!_getbytevalue(value, &ival))
+ return -1;
+
+ self->ob_bytes[i] = ival;
+ return 0;
+}
+
+static int
+bytes_ass_subscript(PyByteArrayObject *self, PyObject *item, PyObject *values)
+{
+ Py_ssize_t start, stop, step, slicelen, needed;
+ char *bytes;
+
+ if (PyIndex_Check(item)) {
+ Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+
+ if (i == -1 && PyErr_Occurred())
+ return -1;
+
+ if (i < 0)
+ i += PyByteArray_GET_SIZE(self);
+
+ if (i < 0 || i >= Py_SIZE(self)) {
+ PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
+ return -1;
+ }
+
+ if (values == NULL) {
+ /* Fall through to slice assignment */
+ start = i;
+ stop = i + 1;
+ step = 1;
+ slicelen = 1;
+ }
+ else {
+ Py_ssize_t ival = PyNumber_AsSsize_t(values, PyExc_ValueError);
+ if (ival == -1 && PyErr_Occurred()) {
+ int int_value;
+ /* Also accept str of size 1 in 2.x */
+ PyErr_Clear();
+ if (!_getbytevalue(values, &int_value))
+ return -1;
+ ival = (int) int_value;
+ } else if (ival < 0 || ival >= 256) {
+ PyErr_SetString(PyExc_ValueError,
+ "byte must be in range(0, 256)");
+ return -1;
+ }
+ self->ob_bytes[i] = (char)ival;
+ return 0;
+ }
+ }
+ else if (PySlice_Check(item)) {
+ if (PySlice_GetIndicesEx((PySliceObject *)item,
+ PyByteArray_GET_SIZE(self),
+ &start, &stop, &step, &slicelen) < 0) {
+ return -1;
+ }
+ }
+ else {
+ PyErr_SetString(PyExc_TypeError, "bytearray indices must be integer");
+ return -1;
+ }
+
+ if (values == NULL) {
+ bytes = NULL;
+ needed = 0;
+ }
+ else if (values == (PyObject *)self || !PyByteArray_Check(values)) {
+ /* Make a copy an call this function recursively */
+ int err;
+ values = PyByteArray_FromObject(values);
+ if (values == NULL)
+ return -1;
+ err = bytes_ass_subscript(self, item, values);
+ Py_DECREF(values);
+ return err;
+ }
+ else {
+ assert(PyByteArray_Check(values));
+ bytes = ((PyByteArrayObject *)values)->ob_bytes;
+ needed = Py_SIZE(values);
+ }
+ /* Make sure b[5:2] = ... inserts before 5, not before 2. */
+ if ((step < 0 && start < stop) ||
+ (step > 0 && start > stop))
+ stop = start;
+ if (step == 1) {
+ if (slicelen != needed) {
+ if (slicelen > needed) {
+ /*
+ 0 start stop old_size
+ | |<---slicelen--->|<-----tomove------>|
+ | |<-needed->|<-----tomove------>|
+ 0 lo new_hi new_size
+ */
+ memmove(self->ob_bytes + start + needed, self->ob_bytes + stop,
+ Py_SIZE(self) - stop);
+ }
+ if (PyByteArray_Resize((PyObject *)self,
+ Py_SIZE(self) + needed - slicelen) < 0)
+ return -1;
+ if (slicelen < needed) {
+ /*
+ 0 lo hi old_size
+ | |<-avail->|<-----tomove------>|
+ | |<----needed---->|<-----tomove------>|
+ 0 lo new_hi new_size
+ */
+ memmove(self->ob_bytes + start + needed, self->ob_bytes + stop,
+ Py_SIZE(self) - start - needed);
+ }
+ }
+
+ if (needed > 0)
+ memcpy(self->ob_bytes + start, bytes, needed);
+
+ return 0;
+ }
+ else {
+ if (needed == 0) {
+ /* Delete slice */
+ Py_ssize_t cur, i;
+
+ if (step < 0) {
+ stop = start + 1;
+ start = stop + step * (slicelen - 1) - 1;
+ step = -step;
+ }
+ for (cur = start, i = 0;
+ i < slicelen; cur += step, i++) {
+ Py_ssize_t lim = step - 1;
+
+ if (cur + step >= PyByteArray_GET_SIZE(self))
+ lim = PyByteArray_GET_SIZE(self) - cur - 1;
+
+ memmove(self->ob_bytes + cur - i,
+ self->ob_bytes + cur + 1, lim);
+ }
+ /* Move the tail of the bytes, in one chunk */
+ cur = start + slicelen*step;
+ if (cur < PyByteArray_GET_SIZE(self)) {
+ memmove(self->ob_bytes + cur - slicelen,
+ self->ob_bytes + cur,
+ PyByteArray_GET_SIZE(self) - cur);
+ }
+ if (PyByteArray_Resize((PyObject *)self,
+ PyByteArray_GET_SIZE(self) - slicelen) < 0)
+ return -1;
+
+ return 0;
+ }
+ else {
+ /* Assign slice */
+ Py_ssize_t cur, i;
+
+ if (needed != slicelen) {
+ PyErr_Format(PyExc_ValueError,
+ "attempt to assign bytes of size %zd "
+ "to extended slice of size %zd",
+ needed, slicelen);
+ return -1;
+ }
+ for (cur = start, i = 0; i < slicelen; cur += step, i++)
+ self->ob_bytes[cur] = bytes[i];
+ return 0;
+ }
+ }
+}
+
+static int
+bytes_init(PyByteArrayObject *self, PyObject *args, PyObject *kwds)
+{
+ static char *kwlist[] = {"source", "encoding", "errors", 0};
+ PyObject *arg = NULL;
+ const char *encoding = NULL;
+ const char *errors = NULL;
+ Py_ssize_t count;
+ PyObject *it;
+ PyObject *(*iternext)(PyObject *);
+
+ if (Py_SIZE(self) != 0) {
+ /* Empty previous contents (yes, do this first of all!) */
+ if (PyByteArray_Resize((PyObject *)self, 0) < 0)
+ return -1;
+ }
+
+ /* Parse arguments */
+ if (!PyArg_ParseTupleAndKeywords(args, kwds, "|Oss:bytes", kwlist,
+ &arg, &encoding, &errors))
+ return -1;
+
+ /* Make a quick exit if no first argument */
+ if (arg == NULL) {
+ if (encoding != NULL || errors != NULL) {
+ PyErr_SetString(PyExc_TypeError,
+ "encoding or errors without sequence argument");
+ return -1;
+ }
+ return 0;
+ }
+
+ if (PyBytes_Check(arg)) {
+ PyObject *new, *encoded;
+ if (encoding != NULL) {
+ encoded = PyCodec_Encode(arg, encoding, errors);
+ if (encoded == NULL)
+ return -1;
+ assert(PyBytes_Check(encoded));
+ }
+ else {
+ encoded = arg;
+ Py_INCREF(arg);
+ }
+ new = bytes_iconcat(self, arg);
+ Py_DECREF(encoded);
+ if (new == NULL)
+ return -1;
+ Py_DECREF(new);
+ return 0;
+ }
+
+ if (PyUnicode_Check(arg)) {
+ /* Encode via the codec registry */
+ PyObject *encoded, *new;
+ if (encoding == NULL) {
+ PyErr_SetString(PyExc_TypeError,
+ "unicode argument without an encoding");
+ return -1;
+ }
+ encoded = PyCodec_Encode(arg, encoding, errors);
+ if (encoded == NULL)
+ return -1;
+ assert(PyBytes_Check(encoded));
+ new = bytes_iconcat(self, encoded);
+ Py_DECREF(encoded);
+ if (new == NULL)
+ return -1;
+ Py_DECREF(new);
+ return 0;
+ }
+
+ /* If it's not unicode, there can't be encoding or errors */
+ if (encoding != NULL || errors != NULL) {
+ PyErr_SetString(PyExc_TypeError,
+ "encoding or errors without a string argument");
+ return -1;
+ }
+
+ /* Is it an int? */
+ count = PyNumber_AsSsize_t(arg, PyExc_ValueError);
+ if (count == -1 && PyErr_Occurred())
+ PyErr_Clear();
+ else {
+ if (count < 0) {
+ PyErr_SetString(PyExc_ValueError, "negative count");
+ return -1;
+ }
+ if (count > 0) {
+ if (PyByteArray_Resize((PyObject *)self, count))
+ return -1;
+ memset(self->ob_bytes, 0, count);
+ }
+ return 0;
+ }
+
+ /* Use the buffer API */
+ if (PyObject_CheckBuffer(arg)) {
+ Py_ssize_t size;
+ Py_buffer view;
+ if (PyObject_GetBuffer(arg, &view, PyBUF_FULL_RO) < 0)
+ return -1;
+ size = view.len;
+ if (PyByteArray_Resize((PyObject *)self, size) < 0) goto fail;
+ if (PyBuffer_ToContiguous(self->ob_bytes, &view, size, 'C') < 0)
+ goto fail;
+ PyObject_ReleaseBuffer(arg, &view);
+ return 0;
+ fail:
+ PyObject_ReleaseBuffer(arg, &view);
+ return -1;
+ }
+
+ /* XXX Optimize this if the arguments is a list, tuple */
+
+ /* Get the iterator */
+ it = PyObject_GetIter(arg);
+ if (it == NULL)
+ return -1;
+ iternext = *Py_TYPE(it)->tp_iternext;
+
+ /* Run the iterator to exhaustion */
+ for (;;) {
+ PyObject *item;
+ Py_ssize_t value;
+
+ /* Get the next item */
+ item = iternext(it);
+ if (item == NULL) {
+ if (PyErr_Occurred()) {
+ if (!PyErr_ExceptionMatches(PyExc_StopIteration))
+ goto error;
+ PyErr_Clear();
+ }
+ break;
+ }
+
+ /* Interpret it as an int (__index__) */
+ value = PyNumber_AsSsize_t(item, PyExc_ValueError);
+ Py_DECREF(item);
+ if (value == -1 && PyErr_Occurred())
+ goto error;
+
+ /* Range check */
+ if (value < 0 || value >= 256) {
+ PyErr_SetString(PyExc_ValueError,
+ "bytes must be in range(0, 256)");
+ goto error;
+ }
+
+ /* Append the byte */
+ if (Py_SIZE(self) < self->ob_alloc)
+ Py_SIZE(self)++;
+ else if (PyByteArray_Resize((PyObject *)self, Py_SIZE(self)+1) < 0)
+ goto error;
+ self->ob_bytes[Py_SIZE(self)-1] = value;
+ }
+
+ /* Clean up and return success */
+ Py_DECREF(it);
+ return 0;
+
+ error:
+ /* Error handling when it != NULL */
+ Py_DECREF(it);
+ return -1;
+}
+
+/* Mostly copied from string_repr, but without the
+ "smart quote" functionality. */
+static PyObject *
+bytes_repr(PyByteArrayObject *self)
+{
+ static const char *hexdigits = "0123456789abcdef";
+ const char *quote_prefix = "bytearray(b";
+ const char *quote_postfix = ")";
+ Py_ssize_t length = Py_SIZE(self);
+ /* 14 == strlen(quote_prefix) + 2 + strlen(quote_postfix) */
+ size_t newsize = 14 + 4 * length;
+ PyObject *v;
+ if (newsize > PY_SSIZE_T_MAX || newsize / 4 - 3 != length) {
+ PyErr_SetString(PyExc_OverflowError,
+ "bytearray object is too large to make repr");
+ return NULL;
+ }
+ v = PyUnicode_FromUnicode(NULL, newsize);
+ if (v == NULL) {
+ return NULL;
+ }
+ else {
+ register Py_ssize_t i;
+ register Py_UNICODE c;
+ register Py_UNICODE *p;
+ int quote;
+
+ /* Figure out which quote to use; single is preferred */
+ quote = '\'';
+ {
+ char *test, *start;
+ start = PyByteArray_AS_STRING(self);
+ for (test = start; test < start+length; ++test) {
+ if (*test == '"') {
+ quote = '\''; /* back to single */
+ goto decided;
+ }
+ else if (*test == '\'')
+ quote = '"';
+ }
+ decided:
+ ;
+ }
+
+ p = PyUnicode_AS_UNICODE(v);
+ while (*quote_prefix)
+ *p++ = *quote_prefix++;
+ *p++ = quote;
+
+ for (i = 0; i < length; i++) {
+ /* There's at least enough room for a hex escape
+ and a closing quote. */
+ assert(newsize - (p - PyUnicode_AS_UNICODE(v)) >= 5);
+ c = self->ob_bytes[i];
+ if (c == '\'' || c == '\\')
+ *p++ = '\\', *p++ = c;
+ else if (c == '\t')
+ *p++ = '\\', *p++ = 't';
+ else if (c == '\n')
+ *p++ = '\\', *p++ = 'n';
+ else if (c == '\r')
+ *p++ = '\\', *p++ = 'r';
+ else if (c == 0)
+ *p++ = '\\', *p++ = 'x', *p++ = '0', *p++ = '0';
+ else if (c < ' ' || c >= 0x7f) {
+ *p++ = '\\';
+ *p++ = 'x';
+ *p++ = hexdigits[(c & 0xf0) >> 4];
+ *p++ = hexdigits[c & 0xf];
+ }
+ else
+ *p++ = c;
+ }
+ assert(newsize - (p - PyUnicode_AS_UNICODE(v)) >= 1);
+ *p++ = quote;
+ while (*quote_postfix) {
+ *p++ = *quote_postfix++;
+ }
+ *p = '\0';
+ if (PyUnicode_Resize(&v, (p - PyUnicode_AS_UNICODE(v)))) {
+ Py_DECREF(v);
+ return NULL;
+ }
+ return v;
+ }
+}
+
+static PyObject *
+bytes_str(PyObject *op)
+{
+#if 0
+ if (Py_BytesWarningFlag) {
+ if (PyErr_WarnEx(PyExc_BytesWarning,
+ "str() on a bytearray instance", 1))
+ return NULL;
+ }
+ return bytes_repr((PyByteArrayObject*)op);
+#endif
+ return PyBytes_FromStringAndSize(((PyByteArrayObject*)op)->ob_bytes, Py_SIZE(op));
+}
+
+static PyObject *
+bytes_richcompare(PyObject *self, PyObject *other, int op)
+{
+ Py_ssize_t self_size, other_size;
+ Py_buffer self_bytes, other_bytes;
+ PyObject *res;
+ Py_ssize_t minsize;
+ int cmp;
+
+ /* Bytes can be compared to anything that supports the (binary)
+ buffer API. Except that a comparison with Unicode is always an
+ error, even if the comparison is for equality. */
+ if (PyObject_IsInstance(self, (PyObject*)&PyUnicode_Type) ||
+ PyObject_IsInstance(other, (PyObject*)&PyUnicode_Type)) {
+ if (Py_BytesWarningFlag && op == Py_EQ) {
+ if (PyErr_WarnEx(PyExc_BytesWarning,
+ "Comparsion between bytearray and string", 1))
+ return NULL;
+ }
+
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+
+ self_size = _getbuffer(self, &self_bytes);
+ if (self_size < 0) {
+ PyErr_Clear();
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+
+ other_size = _getbuffer(other, &other_bytes);
+ if (other_size < 0) {
+ PyErr_Clear();
+ PyObject_ReleaseBuffer(self, &self_bytes);
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+
+ if (self_size != other_size && (op == Py_EQ || op == Py_NE)) {
+ /* Shortcut: if the lengths differ, the objects differ */
+ cmp = (op == Py_NE);
+ }
+ else {
+ minsize = self_size;
+ if (other_size < minsize)
+ minsize = other_size;
+
+ cmp = memcmp(self_bytes.buf, other_bytes.buf, minsize);
+ /* In ISO C, memcmp() guarantees to use unsigned bytes! */
+
+ if (cmp == 0) {
+ if (self_size < other_size)
+ cmp = -1;
+ else if (self_size > other_size)
+ cmp = 1;
+ }
+
+ switch (op) {
+ case Py_LT: cmp = cmp < 0; break;
+ case Py_LE: cmp = cmp <= 0; break;
+ case Py_EQ: cmp = cmp == 0; break;
+ case Py_NE: cmp = cmp != 0; break;
+ case Py_GT: cmp = cmp > 0; break;
+ case Py_GE: cmp = cmp >= 0; break;
+ }
+ }
+
+ res = cmp ? Py_True : Py_False;
+ PyObject_ReleaseBuffer(self, &self_bytes);
+ PyObject_ReleaseBuffer(other, &other_bytes);
+ Py_INCREF(res);
+ return res;
+}
+
+static void
+bytes_dealloc(PyByteArrayObject *self)
+{
+ if (self->ob_bytes != 0) {
+ PyMem_Free(self->ob_bytes);
+ }
+ Py_TYPE(self)->tp_free((PyObject *)self);
+}
+
+
+/* -------------------------------------------------------------------- */
+/* Methods */
+
+#define STRINGLIB_CHAR char
+#define STRINGLIB_CMP memcmp
+#define STRINGLIB_LEN PyByteArray_GET_SIZE
+#define STRINGLIB_STR PyByteArray_AS_STRING
+#define STRINGLIB_NEW PyByteArray_FromStringAndSize
+#define STRINGLIB_EMPTY nullbytes
+#define STRINGLIB_CHECK_EXACT PyByteArray_CheckExact
+#define STRINGLIB_MUTABLE 1
+
+#include "stringlib/fastsearch.h"
+#include "stringlib/count.h"
+#include "stringlib/find.h"
+#include "stringlib/partition.h"
+#include "stringlib/ctype.h"
+#include "stringlib/transmogrify.h"
+
+
+/* The following Py_LOCAL_INLINE and Py_LOCAL functions
+were copied from the old char* style string object. */
+
+Py_LOCAL_INLINE(void)
+_adjust_indices(Py_ssize_t *start, Py_ssize_t *end, Py_ssize_t len)
+{
+ if (*end > len)
+ *end = len;
+ else if (*end < 0)
+ *end += len;
+ if (*end < 0)
+ *end = 0;
+ if (*start < 0)
+ *start += len;
+ if (*start < 0)
+ *start = 0;
+}
+
+
+Py_LOCAL_INLINE(Py_ssize_t)
+bytes_find_internal(PyByteArrayObject *self, PyObject *args, int dir)
+{
+ PyObject *subobj;
+ Py_buffer subbuf;
+ Py_ssize_t start=0, end=PY_SSIZE_T_MAX;
+ Py_ssize_t res;
+
+ if (!PyArg_ParseTuple(args, "O|O&O&:find/rfind/index/rindex", &subobj,
+ _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ return -2;
+ if (_getbuffer(subobj, &subbuf) < 0)
+ return -2;
+ if (dir > 0)
+ res = stringlib_find_slice(
+ PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self),
+ subbuf.buf, subbuf.len, start, end);
+ else
+ res = stringlib_rfind_slice(
+ PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self),
+ subbuf.buf, subbuf.len, start, end);
+ PyObject_ReleaseBuffer(subobj, &subbuf);
+ return res;
+}
+
+PyDoc_STRVAR(find__doc__,
+"B.find(sub [,start [,end]]) -> int\n\
+\n\
+Return the lowest index in B where subsection sub is found,\n\
+such that sub is contained within s[start,end]. Optional\n\
+arguments start and end are interpreted as in slice notation.\n\
+\n\
+Return -1 on failure.");
+
+static PyObject *
+bytes_find(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t result = bytes_find_internal(self, args, +1);
+ if (result == -2)
+ return NULL;
+ return PyInt_FromSsize_t(result);
+}
+
+PyDoc_STRVAR(count__doc__,
+"B.count(sub [,start [,end]]) -> int\n\
+\n\
+Return the number of non-overlapping occurrences of subsection sub in\n\
+bytes B[start:end]. Optional arguments start and end are interpreted\n\
+as in slice notation.");
+
+static PyObject *
+bytes_count(PyByteArrayObject *self, PyObject *args)
+{
+ PyObject *sub_obj;
+ const char *str = PyByteArray_AS_STRING(self);
+ Py_ssize_t start = 0, end = PY_SSIZE_T_MAX;
+ Py_buffer vsub;
+ PyObject *count_obj;
+
+ if (!PyArg_ParseTuple(args, "O|O&O&:count", &sub_obj,
+ _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ return NULL;
+
+ if (_getbuffer(sub_obj, &vsub) < 0)
+ return NULL;
+
+ _adjust_indices(&start, &end, PyByteArray_GET_SIZE(self));
+
+ count_obj = PyInt_FromSsize_t(
+ stringlib_count(str + start, end - start, vsub.buf, vsub.len)
+ );
+ PyObject_ReleaseBuffer(sub_obj, &vsub);
+ return count_obj;
+}
+
+
+PyDoc_STRVAR(index__doc__,
+"B.index(sub [,start [,end]]) -> int\n\
+\n\
+Like B.find() but raise ValueError when the subsection is not found.");
+
+static PyObject *
+bytes_index(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t result = bytes_find_internal(self, args, +1);
+ if (result == -2)
+ return NULL;
+ if (result == -1) {
+ PyErr_SetString(PyExc_ValueError,
+ "subsection not found");
+ return NULL;
+ }
+ return PyInt_FromSsize_t(result);
+}
+
+
+PyDoc_STRVAR(rfind__doc__,
+"B.rfind(sub [,start [,end]]) -> int\n\
+\n\
+Return the highest index in B where subsection sub is found,\n\
+such that sub is contained within s[start,end]. Optional\n\
+arguments start and end are interpreted as in slice notation.\n\
+\n\
+Return -1 on failure.");
+
+static PyObject *
+bytes_rfind(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t result = bytes_find_internal(self, args, -1);
+ if (result == -2)
+ return NULL;
+ return PyInt_FromSsize_t(result);
+}
+
+
+PyDoc_STRVAR(rindex__doc__,
+"B.rindex(sub [,start [,end]]) -> int\n\
+\n\
+Like B.rfind() but raise ValueError when the subsection is not found.");
+
+static PyObject *
+bytes_rindex(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t result = bytes_find_internal(self, args, -1);
+ if (result == -2)
+ return NULL;
+ if (result == -1) {
+ PyErr_SetString(PyExc_ValueError,
+ "subsection not found");
+ return NULL;
+ }
+ return PyInt_FromSsize_t(result);
+}
+
+
+static int
+bytes_contains(PyObject *self, PyObject *arg)
+{
+ Py_ssize_t ival = PyNumber_AsSsize_t(arg, PyExc_ValueError);
+ if (ival == -1 && PyErr_Occurred()) {
+ Py_buffer varg;
+ int pos;
+ PyErr_Clear();
+ if (_getbuffer(arg, &varg) < 0)
+ return -1;
+ pos = stringlib_find(PyByteArray_AS_STRING(self), Py_SIZE(self),
+ varg.buf, varg.len, 0);
+ PyObject_ReleaseBuffer(arg, &varg);
+ return pos >= 0;
+ }
+ if (ival < 0 || ival >= 256) {
+ PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
+ return -1;
+ }
+
+ return memchr(PyByteArray_AS_STRING(self), ival, Py_SIZE(self)) != NULL;
+}
+
+
+/* Matches the end (direction >= 0) or start (direction < 0) of self
+ * against substr, using the start and end arguments. Returns
+ * -1 on error, 0 if not found and 1 if found.
+ */
+Py_LOCAL(int)
+_bytes_tailmatch(PyByteArrayObject *self, PyObject *substr, Py_ssize_t start,
+ Py_ssize_t end, int direction)
+{
+ Py_ssize_t len = PyByteArray_GET_SIZE(self);
+ const char* str;
+ Py_buffer vsubstr;
+ int rv = 0;
+
+ str = PyByteArray_AS_STRING(self);
+
+ if (_getbuffer(substr, &vsubstr) < 0)
+ return -1;
+
+ _adjust_indices(&start, &end, len);
+
+ if (direction < 0) {
+ /* startswith */
+ if (start+vsubstr.len > len) {
+ goto done;
+ }
+ } else {
+ /* endswith */
+ if (end-start < vsubstr.len || start > len) {
+ goto done;
+ }
+
+ if (end-vsubstr.len > start)
+ start = end - vsubstr.len;
+ }
+ if (end-start >= vsubstr.len)
+ rv = ! memcmp(str+start, vsubstr.buf, vsubstr.len);
+
+done:
+ PyObject_ReleaseBuffer(substr, &vsubstr);
+ return rv;
+}
+
+
+PyDoc_STRVAR(startswith__doc__,
+"B.startswith(prefix [,start [,end]]) -> bool\n\
+\n\
+Return True if B starts with the specified prefix, False otherwise.\n\
+With optional start, test B beginning at that position.\n\
+With optional end, stop comparing B at that position.\n\
+prefix can also be a tuple of strings to try.");
+
+static PyObject *
+bytes_startswith(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t start = 0;
+ Py_ssize_t end = PY_SSIZE_T_MAX;
+ PyObject *subobj;
+ int result;
+
+ if (!PyArg_ParseTuple(args, "O|O&O&:startswith", &subobj,
+ _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ return NULL;
+ if (PyTuple_Check(subobj)) {
+ Py_ssize_t i;
+ for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
+ result = _bytes_tailmatch(self,
+ PyTuple_GET_ITEM(subobj, i),
+ start, end, -1);
+ if (result == -1)
+ return NULL;
+ else if (result) {
+ Py_RETURN_TRUE;
+ }
+ }
+ Py_RETURN_FALSE;
+ }
+ result = _bytes_tailmatch(self, subobj, start, end, -1);
+ if (result == -1)
+ return NULL;
+ else
+ return PyBool_FromLong(result);
+}
+
+PyDoc_STRVAR(endswith__doc__,
+"B.endswith(suffix [,start [,end]]) -> bool\n\
+\n\
+Return True if B ends with the specified suffix, False otherwise.\n\
+With optional start, test B beginning at that position.\n\
+With optional end, stop comparing B at that position.\n\
+suffix can also be a tuple of strings to try.");
+
+static PyObject *
+bytes_endswith(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t start = 0;
+ Py_ssize_t end = PY_SSIZE_T_MAX;
+ PyObject *subobj;
+ int result;
+
+ if (!PyArg_ParseTuple(args, "O|O&O&:endswith", &subobj,
+ _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ return NULL;
+ if (PyTuple_Check(subobj)) {
+ Py_ssize_t i;
+ for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
+ result = _bytes_tailmatch(self,
+ PyTuple_GET_ITEM(subobj, i),
+ start, end, +1);
+ if (result == -1)
+ return NULL;
+ else if (result) {
+ Py_RETURN_TRUE;
+ }
+ }
+ Py_RETURN_FALSE;
+ }
+ result = _bytes_tailmatch(self, subobj, start, end, +1);
+ if (result == -1)
+ return NULL;
+ else
+ return PyBool_FromLong(result);
+}
+
+
+PyDoc_STRVAR(translate__doc__,
+"B.translate(table[, deletechars]) -> bytearray\n\
+\n\
+Return a copy of B, where all characters occurring in the\n\
+optional argument deletechars are removed, and the remaining\n\
+characters have been mapped through the given translation\n\
+table, which must be a bytes object of length 256.");
+
+static PyObject *
+bytes_translate(PyByteArrayObject *self, PyObject *args)
+{
+ register char *input, *output;
+ register const char *table;
+ register Py_ssize_t i, c, changed = 0;
+ PyObject *input_obj = (PyObject*)self;
+ const char *output_start;
+ Py_ssize_t inlen;
+ PyObject *result;
+ int trans_table[256];
+ PyObject *tableobj, *delobj = NULL;
+ Py_buffer vtable, vdel;
+
+ if (!PyArg_UnpackTuple(args, "translate", 1, 2,
+ &tableobj, &delobj))
+ return NULL;
+
+ if (_getbuffer(tableobj, &vtable) < 0)
+ return NULL;
+
+ if (vtable.len != 256) {
+ PyErr_SetString(PyExc_ValueError,
+ "translation table must be 256 characters long");
+ result = NULL;
+ goto done;
+ }
+
+ if (delobj != NULL) {
+ if (_getbuffer(delobj, &vdel) < 0) {
+ result = NULL;
+ goto done;
+ }
+ }
+ else {
+ vdel.buf = NULL;
+ vdel.len = 0;
+ }
+
+ table = (const char *)vtable.buf;
+ inlen = PyByteArray_GET_SIZE(input_obj);
+ result = PyByteArray_FromStringAndSize((char *)NULL, inlen);
+ if (result == NULL)
+ goto done;
+ output_start = output = PyByteArray_AsString(result);
+ input = PyByteArray_AS_STRING(input_obj);
+
+ if (vdel.len == 0) {
+ /* If no deletions are required, use faster code */
+ for (i = inlen; --i >= 0; ) {
+ c = Py_CHARMASK(*input++);
+ if (Py_CHARMASK((*output++ = table[c])) != c)
+ changed = 1;
+ }
+ if (changed || !PyByteArray_CheckExact(input_obj))
+ goto done;
+ Py_DECREF(result);
+ Py_INCREF(input_obj);
+ result = input_obj;
+ goto done;
+ }
+
+ for (i = 0; i < 256; i++)
+ trans_table[i] = Py_CHARMASK(table[i]);
+
+ for (i = 0; i < vdel.len; i++)
+ trans_table[(int) Py_CHARMASK( ((unsigned char*)vdel.buf)[i] )] = -1;
+
+ for (i = inlen; --i >= 0; ) {
+ c = Py_CHARMASK(*input++);
+ if (trans_table[c] != -1)
+ if (Py_CHARMASK(*output++ = (char)trans_table[c]) == c)
+ continue;
+ changed = 1;
+ }
+ if (!changed && PyByteArray_CheckExact(input_obj)) {
+ Py_DECREF(result);
+ Py_INCREF(input_obj);
+ result = input_obj;
+ goto done;
+ }
+ /* Fix the size of the resulting string */
+ if (inlen > 0)
+ PyByteArray_Resize(result, output - output_start);
+
+done:
+ PyObject_ReleaseBuffer(tableobj, &vtable);
+ if (delobj != NULL)
+ PyObject_ReleaseBuffer(delobj, &vdel);
+ return result;
+}
+
+
+#define FORWARD 1
+#define REVERSE -1
+
+/* find and count characters and substrings */
+
+#define findchar(target, target_len, c) \
+ ((char *)memchr((const void *)(target), c, target_len))
+
+/* Don't call if length < 2 */
+#define Py_STRING_MATCH(target, offset, pattern, length) \
+ (target[offset] == pattern[0] && \
+ target[offset+length-1] == pattern[length-1] && \
+ !memcmp(target+offset+1, pattern+1, length-2) )
+
+
+/* Bytes ops must return a string. */
+/* If the object is subclass of bytes, create a copy */
+Py_LOCAL(PyByteArrayObject *)
+return_self(PyByteArrayObject *self)
+{
+ if (PyByteArray_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyByteArrayObject *)self;
+ }
+ return (PyByteArrayObject *)PyByteArray_FromStringAndSize(
+ PyByteArray_AS_STRING(self),
+ PyByteArray_GET_SIZE(self));
+}
+
+Py_LOCAL_INLINE(Py_ssize_t)
+countchar(const char *target, Py_ssize_t target_len, char c, Py_ssize_t maxcount)
+{
+ Py_ssize_t count=0;
+ const char *start=target;
+ const char *end=target+target_len;
+
+ while ( (start=findchar(start, end-start, c)) != NULL ) {
+ count++;
+ if (count >= maxcount)
+ break;
+ start += 1;
+ }
+ return count;
+}
+
+Py_LOCAL(Py_ssize_t)
+findstring(const char *target, Py_ssize_t target_len,
+ const char *pattern, Py_ssize_t pattern_len,
+ Py_ssize_t start,
+ Py_ssize_t end,
+ int direction)
+{
+ if (start < 0) {
+ start += target_len;
+ if (start < 0)
+ start = 0;
+ }
+ if (end > target_len) {
+ end = target_len;
+ } else if (end < 0) {
+ end += target_len;
+ if (end < 0)
+ end = 0;
+ }
+
+ /* zero-length substrings always match at the first attempt */
+ if (pattern_len == 0)
+ return (direction > 0) ? start : end;
+
+ end -= pattern_len;
+
+ if (direction < 0) {
+ for (; end >= start; end--)
+ if (Py_STRING_MATCH(target, end, pattern, pattern_len))
+ return end;
+ } else {
+ for (; start <= end; start++)
+ if (Py_STRING_MATCH(target, start, pattern, pattern_len))
+ return start;
+ }
+ return -1;
+}
+
+Py_LOCAL_INLINE(Py_ssize_t)
+countstring(const char *target, Py_ssize_t target_len,
+ const char *pattern, Py_ssize_t pattern_len,
+ Py_ssize_t start,
+ Py_ssize_t end,
+ int direction, Py_ssize_t maxcount)
+{
+ Py_ssize_t count=0;
+
+ if (start < 0) {
+ start += target_len;
+ if (start < 0)
+ start = 0;
+ }
+ if (end > target_len) {
+ end = target_len;
+ } else if (end < 0) {
+ end += target_len;
+ if (end < 0)
+ end = 0;
+ }
+
+ /* zero-length substrings match everywhere */
+ if (pattern_len == 0 || maxcount == 0) {
+ if (target_len+1 < maxcount)
+ return target_len+1;
+ return maxcount;
+ }
+
+ end -= pattern_len;
+ if (direction < 0) {
+ for (; (end >= start); end--)
+ if (Py_STRING_MATCH(target, end, pattern, pattern_len)) {
+ count++;
+ if (--maxcount <= 0) break;
+ end -= pattern_len-1;
+ }
+ } else {
+ for (; (start <= end); start++)
+ if (Py_STRING_MATCH(target, start, pattern, pattern_len)) {
+ count++;
+ if (--maxcount <= 0)
+ break;
+ start += pattern_len-1;
+ }
+ }
+ return count;
+}
+
+
+/* Algorithms for different cases of string replacement */
+
+/* len(self)>=1, from="", len(to)>=1, maxcount>=1 */
+Py_LOCAL(PyByteArrayObject *)
+replace_interleave(PyByteArrayObject *self,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount)
+{
+ char *self_s, *result_s;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count, i, product;
+ PyByteArrayObject *result;
+
+ self_len = PyByteArray_GET_SIZE(self);
+
+ /* 1 at the end plus 1 after every character */
+ count = self_len+1;
+ if (maxcount < count)
+ count = maxcount;
+
+ /* Check for overflow */
+ /* result_len = count * to_len + self_len; */
+ product = count * to_len;
+ if (product / to_len != count) {
+ PyErr_SetString(PyExc_OverflowError,
+ "replace string is too long");
+ return NULL;
+ }
+ result_len = product + self_len;
+ if (result_len < 0) {
+ PyErr_SetString(PyExc_OverflowError,
+ "replace string is too long");
+ return NULL;
+ }
+
+ if (! (result = (PyByteArrayObject *)
+ PyByteArray_FromStringAndSize(NULL, result_len)) )
+ return NULL;
+
+ self_s = PyByteArray_AS_STRING(self);
+ result_s = PyByteArray_AS_STRING(result);
+
+ /* TODO: special case single character, which doesn't need memcpy */
+
+ /* Lay the first one down (guaranteed this will occur) */
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ count -= 1;
+
+ for (i=0; i<count; i++) {
+ *result_s++ = *self_s++;
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ }
+
+ /* Copy the rest of the original string */
+ Py_MEMCPY(result_s, self_s, self_len-i);
+
+ return result;
+}
+
+/* Special case for deleting a single character */
+/* len(self)>=1, len(from)==1, to="", maxcount>=1 */
+Py_LOCAL(PyByteArrayObject *)
+replace_delete_single_character(PyByteArrayObject *self,
+ char from_c, Py_ssize_t maxcount)
+{
+ char *self_s, *result_s;
+ char *start, *next, *end;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count;
+ PyByteArrayObject *result;
+
+ self_len = PyByteArray_GET_SIZE(self);
+ self_s = PyByteArray_AS_STRING(self);
+
+ count = countchar(self_s, self_len, from_c, maxcount);
+ if (count == 0) {
+ return return_self(self);
+ }
+
+ result_len = self_len - count; /* from_len == 1 */
+ assert(result_len>=0);
+
+ if ( (result = (PyByteArrayObject *)
+ PyByteArray_FromStringAndSize(NULL, result_len)) == NULL)
+ return NULL;
+ result_s = PyByteArray_AS_STRING(result);
+
+ start = self_s;
+ end = self_s + self_len;
+ while (count-- > 0) {
+ next = findchar(start, end-start, from_c);
+ if (next == NULL)
+ break;
+ Py_MEMCPY(result_s, start, next-start);
+ result_s += (next-start);
+ start = next+1;
+ }
+ Py_MEMCPY(result_s, start, end-start);
+
+ return result;
+}
+
+/* len(self)>=1, len(from)>=2, to="", maxcount>=1 */
+
+Py_LOCAL(PyByteArrayObject *)
+replace_delete_substring(PyByteArrayObject *self,
+ const char *from_s, Py_ssize_t from_len,
+ Py_ssize_t maxcount)
+{
+ char *self_s, *result_s;
+ char *start, *next, *end;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count, offset;
+ PyByteArrayObject *result;
+
+ self_len = PyByteArray_GET_SIZE(self);
+ self_s = PyByteArray_AS_STRING(self);
+
+ count = countstring(self_s, self_len,
+ from_s, from_len,
+ 0, self_len, 1,
+ maxcount);
+
+ if (count == 0) {
+ /* no matches */
+ return return_self(self);
+ }
+
+ result_len = self_len - (count * from_len);
+ assert (result_len>=0);
+
+ if ( (result = (PyByteArrayObject *)
+ PyByteArray_FromStringAndSize(NULL, result_len)) == NULL )
+ return NULL;
+
+ result_s = PyByteArray_AS_STRING(result);
+
+ start = self_s;
+ end = self_s + self_len;
+ while (count-- > 0) {
+ offset = findstring(start, end-start,
+ from_s, from_len,
+ 0, end-start, FORWARD);
+ if (offset == -1)
+ break;
+ next = start + offset;
+
+ Py_MEMCPY(result_s, start, next-start);
+
+ result_s += (next-start);
+ start = next+from_len;
+ }
+ Py_MEMCPY(result_s, start, end-start);
+ return result;
+}
+
+/* len(self)>=1, len(from)==len(to)==1, maxcount>=1 */
+Py_LOCAL(PyByteArrayObject *)
+replace_single_character_in_place(PyByteArrayObject *self,
+ char from_c, char to_c,
+ Py_ssize_t maxcount)
+{
+ char *self_s, *result_s, *start, *end, *next;
+ Py_ssize_t self_len;
+ PyByteArrayObject *result;
+
+ /* The result string will be the same size */
+ self_s = PyByteArray_AS_STRING(self);
+ self_len = PyByteArray_GET_SIZE(self);
+
+ next = findchar(self_s, self_len, from_c);
+
+ if (next == NULL) {
+ /* No matches; return the original bytes */
+ return return_self(self);
+ }
+
+ /* Need to make a new bytes */
+ result = (PyByteArrayObject *) PyByteArray_FromStringAndSize(NULL, self_len);
+ if (result == NULL)
+ return NULL;
+ result_s = PyByteArray_AS_STRING(result);
+ Py_MEMCPY(result_s, self_s, self_len);
+
+ /* change everything in-place, starting with this one */
+ start = result_s + (next-self_s);
+ *start = to_c;
+ start++;
+ end = result_s + self_len;
+
+ while (--maxcount > 0) {
+ next = findchar(start, end-start, from_c);
+ if (next == NULL)
+ break;
+ *next = to_c;
+ start = next+1;
+ }
+
+ return result;
+}
+
+/* len(self)>=1, len(from)==len(to)>=2, maxcount>=1 */
+Py_LOCAL(PyByteArrayObject *)
+replace_substring_in_place(PyByteArrayObject *self,
+ const char *from_s, Py_ssize_t from_len,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount)
+{
+ char *result_s, *start, *end;
+ char *self_s;
+ Py_ssize_t self_len, offset;
+ PyByteArrayObject *result;
+
+ /* The result bytes will be the same size */
+
+ self_s = PyByteArray_AS_STRING(self);
+ self_len = PyByteArray_GET_SIZE(self);
+
+ offset = findstring(self_s, self_len,
+ from_s, from_len,
+ 0, self_len, FORWARD);
+ if (offset == -1) {
+ /* No matches; return the original bytes */
+ return return_self(self);
+ }
+
+ /* Need to make a new bytes */
+ result = (PyByteArrayObject *) PyByteArray_FromStringAndSize(NULL, self_len);
+ if (result == NULL)
+ return NULL;
+ result_s = PyByteArray_AS_STRING(result);
+ Py_MEMCPY(result_s, self_s, self_len);
+
+ /* change everything in-place, starting with this one */
+ start = result_s + offset;
+ Py_MEMCPY(start, to_s, from_len);
+ start += from_len;
+ end = result_s + self_len;
+
+ while ( --maxcount > 0) {
+ offset = findstring(start, end-start,
+ from_s, from_len,
+ 0, end-start, FORWARD);
+ if (offset==-1)
+ break;
+ Py_MEMCPY(start+offset, to_s, from_len);
+ start += offset+from_len;
+ }
+
+ return result;
+}
+
+/* len(self)>=1, len(from)==1, len(to)>=2, maxcount>=1 */
+Py_LOCAL(PyByteArrayObject *)
+replace_single_character(PyByteArrayObject *self,
+ char from_c,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount)
+{
+ char *self_s, *result_s;
+ char *start, *next, *end;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count, product;
+ PyByteArrayObject *result;
+
+ self_s = PyByteArray_AS_STRING(self);
+ self_len = PyByteArray_GET_SIZE(self);
+
+ count = countchar(self_s, self_len, from_c, maxcount);
+ if (count == 0) {
+ /* no matches, return unchanged */
+ return return_self(self);
+ }
+
+ /* use the difference between current and new, hence the "-1" */
+ /* result_len = self_len + count * (to_len-1) */
+ product = count * (to_len-1);
+ if (product / (to_len-1) != count) {
+ PyErr_SetString(PyExc_OverflowError, "replace bytes is too long");
+ return NULL;
+ }
+ result_len = self_len + product;
+ if (result_len < 0) {
+ PyErr_SetString(PyExc_OverflowError, "replace bytes is too long");
+ return NULL;
+ }
+
+ if ( (result = (PyByteArrayObject *)
+ PyByteArray_FromStringAndSize(NULL, result_len)) == NULL)
+ return NULL;
+ result_s = PyByteArray_AS_STRING(result);
+
+ start = self_s;
+ end = self_s + self_len;
+ while (count-- > 0) {
+ next = findchar(start, end-start, from_c);
+ if (next == NULL)
+ break;
+
+ if (next == start) {
+ /* replace with the 'to' */
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ start += 1;
+ } else {
+ /* copy the unchanged old then the 'to' */
+ Py_MEMCPY(result_s, start, next-start);
+ result_s += (next-start);
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ start = next+1;
+ }
+ }
+ /* Copy the remainder of the remaining bytes */
+ Py_MEMCPY(result_s, start, end-start);
+
+ return result;
+}
+
+/* len(self)>=1, len(from)>=2, len(to)>=2, maxcount>=1 */
+Py_LOCAL(PyByteArrayObject *)
+replace_substring(PyByteArrayObject *self,
+ const char *from_s, Py_ssize_t from_len,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount)
+{
+ char *self_s, *result_s;
+ char *start, *next, *end;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count, offset, product;
+ PyByteArrayObject *result;
+
+ self_s = PyByteArray_AS_STRING(self);
+ self_len = PyByteArray_GET_SIZE(self);
+
+ count = countstring(self_s, self_len,
+ from_s, from_len,
+ 0, self_len, FORWARD, maxcount);
+ if (count == 0) {
+ /* no matches, return unchanged */
+ return return_self(self);
+ }
+
+ /* Check for overflow */
+ /* result_len = self_len + count * (to_len-from_len) */
+ product = count * (to_len-from_len);
+ if (product / (to_len-from_len) != count) {
+ PyErr_SetString(PyExc_OverflowError, "replace bytes is too long");
+ return NULL;
+ }
+ result_len = self_len + product;
+ if (result_len < 0) {
+ PyErr_SetString(PyExc_OverflowError, "replace bytes is too long");
+ return NULL;
+ }
+
+ if ( (result = (PyByteArrayObject *)
+ PyByteArray_FromStringAndSize(NULL, result_len)) == NULL)
+ return NULL;
+ result_s = PyByteArray_AS_STRING(result);
+
+ start = self_s;
+ end = self_s + self_len;
+ while (count-- > 0) {
+ offset = findstring(start, end-start,
+ from_s, from_len,
+ 0, end-start, FORWARD);
+ if (offset == -1)
+ break;
+ next = start+offset;
+ if (next == start) {
+ /* replace with the 'to' */
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ start += from_len;
+ } else {
+ /* copy the unchanged old then the 'to' */
+ Py_MEMCPY(result_s, start, next-start);
+ result_s += (next-start);
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ start = next+from_len;
+ }
+ }
+ /* Copy the remainder of the remaining bytes */
+ Py_MEMCPY(result_s, start, end-start);
+
+ return result;
+}
+
+
+Py_LOCAL(PyByteArrayObject *)
+replace(PyByteArrayObject *self,
+ const char *from_s, Py_ssize_t from_len,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount)
+{
+ if (maxcount < 0) {
+ maxcount = PY_SSIZE_T_MAX;
+ } else if (maxcount == 0 || PyByteArray_GET_SIZE(self) == 0) {
+ /* nothing to do; return the original bytes */
+ return return_self(self);
+ }
+
+ if (maxcount == 0 ||
+ (from_len == 0 && to_len == 0)) {
+ /* nothing to do; return the original bytes */
+ return return_self(self);
+ }
+
+ /* Handle zero-length special cases */
+
+ if (from_len == 0) {
+ /* insert the 'to' bytes everywhere. */
+ /* >>> "Python".replace("", ".") */
+ /* '.P.y.t.h.o.n.' */
+ return replace_interleave(self, to_s, to_len, maxcount);
+ }
+
+ /* Except for "".replace("", "A") == "A" there is no way beyond this */
+ /* point for an empty self bytes to generate a non-empty bytes */
+ /* Special case so the remaining code always gets a non-empty bytes */
+ if (PyByteArray_GET_SIZE(self) == 0) {
+ return return_self(self);
+ }
+
+ if (to_len == 0) {
+ /* delete all occurances of 'from' bytes */
+ if (from_len == 1) {
+ return replace_delete_single_character(
+ self, from_s[0], maxcount);
+ } else {
+ return replace_delete_substring(self, from_s, from_len, maxcount);
+ }
+ }
+
+ /* Handle special case where both bytes have the same length */
+
+ if (from_len == to_len) {
+ if (from_len == 1) {
+ return replace_single_character_in_place(
+ self,
+ from_s[0],
+ to_s[0],
+ maxcount);
+ } else {
+ return replace_substring_in_place(
+ self, from_s, from_len, to_s, to_len, maxcount);
+ }
+ }
+
+ /* Otherwise use the more generic algorithms */
+ if (from_len == 1) {
+ return replace_single_character(self, from_s[0],
+ to_s, to_len, maxcount);
+ } else {
+ /* len('from')>=2, len('to')>=1 */
+ return replace_substring(self, from_s, from_len, to_s, to_len, maxcount);
+ }
+}
+
+
+PyDoc_STRVAR(replace__doc__,
+"B.replace(old, new[, count]) -> bytes\n\
+\n\
+Return a copy of B with all occurrences of subsection\n\
+old replaced by new. If the optional argument count is\n\
+given, only the first count occurrences are replaced.");
+
+static PyObject *
+bytes_replace(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t count = -1;
+ PyObject *from, *to, *res;
+ Py_buffer vfrom, vto;
+
+ if (!PyArg_ParseTuple(args, "OO|n:replace", &from, &to, &count))
+ return NULL;
+
+ if (_getbuffer(from, &vfrom) < 0)
+ return NULL;
+ if (_getbuffer(to, &vto) < 0) {
+ PyObject_ReleaseBuffer(from, &vfrom);
+ return NULL;
+ }
+
+ res = (PyObject *)replace((PyByteArrayObject *) self,
+ vfrom.buf, vfrom.len,
+ vto.buf, vto.len, count);
+
+ PyObject_ReleaseBuffer(from, &vfrom);
+ PyObject_ReleaseBuffer(to, &vto);
+ return res;
+}
+
+
+/* Overallocate the initial list to reduce the number of reallocs for small
+ split sizes. Eg, "A A A A A A A A A A".split() (10 elements) has three
+ resizes, to sizes 4, 8, then 16. Most observed string splits are for human
+ text (roughly 11 words per line) and field delimited data (usually 1-10
+ fields). For large strings the split algorithms are bandwidth limited
+ so increasing the preallocation likely will not improve things.*/
+
+#define MAX_PREALLOC 12
+
+/* 5 splits gives 6 elements */
+#define PREALLOC_SIZE(maxsplit) \
+ (maxsplit >= MAX_PREALLOC ? MAX_PREALLOC : maxsplit+1)
+
+#define SPLIT_APPEND(data, left, right) \
+ str = PyByteArray_FromStringAndSize((data) + (left), \
+ (right) - (left)); \
+ if (str == NULL) \
+ goto onError; \
+ if (PyList_Append(list, str)) { \
+ Py_DECREF(str); \
+ goto onError; \
+ } \
+ else \
+ Py_DECREF(str);
+
+#define SPLIT_ADD(data, left, right) { \
+ str = PyByteArray_FromStringAndSize((data) + (left), \
+ (right) - (left)); \
+ if (str == NULL) \
+ goto onError; \
+ if (count < MAX_PREALLOC) { \
+ PyList_SET_ITEM(list, count, str); \
+ } else { \
+ if (PyList_Append(list, str)) { \
+ Py_DECREF(str); \
+ goto onError; \
+ } \
+ else \
+ Py_DECREF(str); \
+ } \
+ count++; }
+
+/* Always force the list to the expected size. */
+#define FIX_PREALLOC_SIZE(list) Py_SIZE(list) = count
+
+
+Py_LOCAL_INLINE(PyObject *)
+split_char(const char *s, Py_ssize_t len, char ch, Py_ssize_t maxcount)
+{
+ register Py_ssize_t i, j, count = 0;
+ PyObject *str;
+ PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+
+ if (list == NULL)
+ return NULL;
+
+ i = j = 0;
+ while ((j < len) && (maxcount-- > 0)) {
+ for(; j < len; j++) {
+ /* I found that using memchr makes no difference */
+ if (s[j] == ch) {
+ SPLIT_ADD(s, i, j);
+ i = j = j + 1;
+ break;
+ }
+ }
+ }
+ if (i <= len) {
+ SPLIT_ADD(s, i, len);
+ }
+ FIX_PREALLOC_SIZE(list);
+ return list;
+
+ onError:
+ Py_DECREF(list);
+ return NULL;
+}
+
+
+Py_LOCAL_INLINE(PyObject *)
+split_whitespace(const char *s, Py_ssize_t len, Py_ssize_t maxcount)
+{
+ register Py_ssize_t i, j, count = 0;
+ PyObject *str;
+ PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+
+ if (list == NULL)
+ return NULL;
+
+ for (i = j = 0; i < len; ) {
+ /* find a token */
+ while (i < len && ISSPACE(s[i]))
+ i++;
+ j = i;
+ while (i < len && !ISSPACE(s[i]))
+ i++;
+ if (j < i) {
+ if (maxcount-- <= 0)
+ break;
+ SPLIT_ADD(s, j, i);
+ while (i < len && ISSPACE(s[i]))
+ i++;
+ j = i;
+ }
+ }
+ if (j < len) {
+ SPLIT_ADD(s, j, len);
+ }
+ FIX_PREALLOC_SIZE(list);
+ return list;
+
+ onError:
+ Py_DECREF(list);
+ return NULL;
+}
+
+PyDoc_STRVAR(split__doc__,
+"B.split([sep[, maxsplit]]) -> list of bytearray\n\
+\n\
+Return a list of the sections in B, using sep as the delimiter.\n\
+If sep is not given, B is split on ASCII whitespace characters\n\
+(space, tab, return, newline, formfeed, vertical tab).\n\
+If maxsplit is given, at most maxsplit splits are done.");
+
+static PyObject *
+bytes_split(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t len = PyByteArray_GET_SIZE(self), n, i, j;
+ Py_ssize_t maxsplit = -1, count = 0;
+ const char *s = PyByteArray_AS_STRING(self), *sub;
+ PyObject *list, *str, *subobj = Py_None;
+ Py_buffer vsub;
+#ifdef USE_FAST
+ Py_ssize_t pos;
+#endif
+
+ if (!PyArg_ParseTuple(args, "|On:split", &subobj, &maxsplit))
+ return NULL;
+ if (maxsplit < 0)
+ maxsplit = PY_SSIZE_T_MAX;
+
+ if (subobj == Py_None)
+ return split_whitespace(s, len, maxsplit);
+
+ if (_getbuffer(subobj, &vsub) < 0)
+ return NULL;
+ sub = vsub.buf;
+ n = vsub.len;
+
+ if (n == 0) {
+ PyErr_SetString(PyExc_ValueError, "empty separator");
+ PyObject_ReleaseBuffer(subobj, &vsub);
+ return NULL;
+ }
+ if (n == 1)
+ return split_char(s, len, sub[0], maxsplit);
+
+ list = PyList_New(PREALLOC_SIZE(maxsplit));
+ if (list == NULL) {
+ PyObject_ReleaseBuffer(subobj, &vsub);
+ return NULL;
+ }
+
+#ifdef USE_FAST
+ i = j = 0;
+ while (maxsplit-- > 0) {
+ pos = fastsearch(s+i, len-i, sub, n, FAST_SEARCH);
+ if (pos < 0)
+ break;
+ j = i+pos;
+ SPLIT_ADD(s, i, j);
+ i = j + n;
+ }
+#else
+ i = j = 0;
+ while ((j+n <= len) && (maxsplit-- > 0)) {
+ for (; j+n <= len; j++) {
+ if (Py_STRING_MATCH(s, j, sub, n)) {
+ SPLIT_ADD(s, i, j);
+ i = j = j + n;
+ break;
+ }
+ }
+ }
+#endif
+ SPLIT_ADD(s, i, len);
+ FIX_PREALLOC_SIZE(list);
+ PyObject_ReleaseBuffer(subobj, &vsub);
+ return list;
+
+ onError:
+ Py_DECREF(list);
+ PyObject_ReleaseBuffer(subobj, &vsub);
+ return NULL;
+}
+
+/* stringlib's partition shares nullbytes in some cases.
+ undo this, we don't want the nullbytes to be shared. */
+static PyObject *
+make_nullbytes_unique(PyObject *result)
+{
+ if (result != NULL) {
+ int i;
+ assert(PyTuple_Check(result));
+ assert(PyTuple_GET_SIZE(result) == 3);
+ for (i = 0; i < 3; i++) {
+ if (PyTuple_GET_ITEM(result, i) == (PyObject *)nullbytes) {
+ PyObject *new = PyByteArray_FromStringAndSize(NULL, 0);
+ if (new == NULL) {
+ Py_DECREF(result);
+ result = NULL;
+ break;
+ }
+ Py_DECREF(nullbytes);
+ PyTuple_SET_ITEM(result, i, new);
+ }
+ }
+ }
+ return result;
+}
+
+PyDoc_STRVAR(partition__doc__,
+"B.partition(sep) -> (head, sep, tail)\n\
+\n\
+Searches for the separator sep in B, and returns the part before it,\n\
+the separator itself, and the part after it. If the separator is not\n\
+found, returns B and two empty bytearray objects.");
+
+static PyObject *
+bytes_partition(PyByteArrayObject *self, PyObject *sep_obj)
+{
+ PyObject *bytesep, *result;
+
+ bytesep = PyByteArray_FromObject(sep_obj);
+ if (! bytesep)
+ return NULL;
+
+ result = stringlib_partition(
+ (PyObject*) self,
+ PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self),
+ bytesep,
+ PyByteArray_AS_STRING(bytesep), PyByteArray_GET_SIZE(bytesep)
+ );
+
+ Py_DECREF(bytesep);
+ return make_nullbytes_unique(result);
+}
+
+PyDoc_STRVAR(rpartition__doc__,
+"B.rpartition(sep) -> (tail, sep, head)\n\
+\n\
+Searches for the separator sep in B, starting at the end of B,\n\
+and returns the part before it, the separator itself, and the\n\
+part after it. If the separator is not found, returns two empty\n\
+bytearray objects and B.");
+
+static PyObject *
+bytes_rpartition(PyByteArrayObject *self, PyObject *sep_obj)
+{
+ PyObject *bytesep, *result;
+
+ bytesep = PyByteArray_FromObject(sep_obj);
+ if (! bytesep)
+ return NULL;
+
+ result = stringlib_rpartition(
+ (PyObject*) self,
+ PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self),
+ bytesep,
+ PyByteArray_AS_STRING(bytesep), PyByteArray_GET_SIZE(bytesep)
+ );
+
+ Py_DECREF(bytesep);
+ return make_nullbytes_unique(result);
+}
+
+Py_LOCAL_INLINE(PyObject *)
+rsplit_char(const char *s, Py_ssize_t len, char ch, Py_ssize_t maxcount)
+{
+ register Py_ssize_t i, j, count=0;
+ PyObject *str;
+ PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+
+ if (list == NULL)
+ return NULL;
+
+ i = j = len - 1;
+ while ((i >= 0) && (maxcount-- > 0)) {
+ for (; i >= 0; i--) {
+ if (s[i] == ch) {
+ SPLIT_ADD(s, i + 1, j + 1);
+ j = i = i - 1;
+ break;
+ }
+ }
+ }
+ if (j >= -1) {
+ SPLIT_ADD(s, 0, j + 1);
+ }
+ FIX_PREALLOC_SIZE(list);
+ if (PyList_Reverse(list) < 0)
+ goto onError;
+
+ return list;
+
+ onError:
+ Py_DECREF(list);
+ return NULL;
+}
+
+Py_LOCAL_INLINE(PyObject *)
+rsplit_whitespace(const char *s, Py_ssize_t len, Py_ssize_t maxcount)
+{
+ register Py_ssize_t i, j, count = 0;
+ PyObject *str;
+ PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+
+ if (list == NULL)
+ return NULL;
+
+ for (i = j = len - 1; i >= 0; ) {
+ /* find a token */
+ while (i >= 0 && ISSPACE(s[i]))
+ i--;
+ j = i;
+ while (i >= 0 && !ISSPACE(s[i]))
+ i--;
+ if (j > i) {
+ if (maxcount-- <= 0)
+ break;
+ SPLIT_ADD(s, i + 1, j + 1);
+ while (i >= 0 && ISSPACE(s[i]))
+ i--;
+ j = i;
+ }
+ }
+ if (j >= 0) {
+ SPLIT_ADD(s, 0, j + 1);
+ }
+ FIX_PREALLOC_SIZE(list);
+ if (PyList_Reverse(list) < 0)
+ goto onError;
+
+ return list;
+
+ onError:
+ Py_DECREF(list);
+ return NULL;
+}
+
+PyDoc_STRVAR(rsplit__doc__,
+"B.rsplit(sep[, maxsplit]) -> list of bytearray\n\
+\n\
+Return a list of the sections in B, using sep as the delimiter,\n\
+starting at the end of B and working to the front.\n\
+If sep is not given, B is split on ASCII whitespace characters\n\
+(space, tab, return, newline, formfeed, vertical tab).\n\
+If maxsplit is given, at most maxsplit splits are done.");
+
+static PyObject *
+bytes_rsplit(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t len = PyByteArray_GET_SIZE(self), n, i, j;
+ Py_ssize_t maxsplit = -1, count = 0;
+ const char *s = PyByteArray_AS_STRING(self), *sub;
+ PyObject *list, *str, *subobj = Py_None;
+ Py_buffer vsub;
+
+ if (!PyArg_ParseTuple(args, "|On:rsplit", &subobj, &maxsplit))
+ return NULL;
+ if (maxsplit < 0)
+ maxsplit = PY_SSIZE_T_MAX;
+
+ if (subobj == Py_None)
+ return rsplit_whitespace(s, len, maxsplit);
+
+ if (_getbuffer(subobj, &vsub) < 0)
+ return NULL;
+ sub = vsub.buf;
+ n = vsub.len;
+
+ if (n == 0) {
+ PyErr_SetString(PyExc_ValueError, "empty separator");
+ PyObject_ReleaseBuffer(subobj, &vsub);
+ return NULL;
+ }
+ else if (n == 1)
+ return rsplit_char(s, len, sub[0], maxsplit);
+
+ list = PyList_New(PREALLOC_SIZE(maxsplit));
+ if (list == NULL) {
+ PyObject_ReleaseBuffer(subobj, &vsub);
+ return NULL;
+ }
+
+ j = len;
+ i = j - n;
+
+ while ( (i >= 0) && (maxsplit-- > 0) ) {
+ for (; i>=0; i--) {
+ if (Py_STRING_MATCH(s, i, sub, n)) {
+ SPLIT_ADD(s, i + n, j);
+ j = i;
+ i -= n;
+ break;
+ }
+ }
+ }
+ SPLIT_ADD(s, 0, j);
+ FIX_PREALLOC_SIZE(list);
+ if (PyList_Reverse(list) < 0)
+ goto onError;
+ PyObject_ReleaseBuffer(subobj, &vsub);
+ return list;
+
+onError:
+ Py_DECREF(list);
+ PyObject_ReleaseBuffer(subobj, &vsub);
+ return NULL;
+}
+
+PyDoc_STRVAR(reverse__doc__,
+"B.reverse() -> None\n\
+\n\
+Reverse the order of the values in B in place.");
+static PyObject *
+bytes_reverse(PyByteArrayObject *self, PyObject *unused)
+{
+ char swap, *head, *tail;
+ Py_ssize_t i, j, n = Py_SIZE(self);
+
+ j = n / 2;
+ head = self->ob_bytes;
+ tail = head + n - 1;
+ for (i = 0; i < j; i++) {
+ swap = *head;
+ *head++ = *tail;
+ *tail-- = swap;
+ }
+
+ Py_RETURN_NONE;
+}
+
+PyDoc_STRVAR(insert__doc__,
+"B.insert(index, int) -> None\n\
+\n\
+Insert a single item into the bytearray before the given index.");
+static PyObject *
+bytes_insert(PyByteArrayObject *self, PyObject *args)
+{
+ int value;
+ Py_ssize_t where, n = Py_SIZE(self);
+
+ if (!PyArg_ParseTuple(args, "ni:insert", &where, &value))
+ return NULL;
+
+ if (n == PY_SSIZE_T_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "cannot add more objects to bytes");
+ return NULL;
+ }
+ if (value < 0 || value >= 256) {
+ PyErr_SetString(PyExc_ValueError,
+ "byte must be in range(0, 256)");
+ return NULL;
+ }
+ if (PyByteArray_Resize((PyObject *)self, n + 1) < 0)
+ return NULL;
+
+ if (where < 0) {
+ where += n;
+ if (where < 0)
+ where = 0;
+ }
+ if (where > n)
+ where = n;
+ memmove(self->ob_bytes + where + 1, self->ob_bytes + where, n - where);
+ self->ob_bytes[where] = value;
+
+ Py_RETURN_NONE;
+}
+
+PyDoc_STRVAR(append__doc__,
+"B.append(int) -> None\n\
+\n\
+Append a single item to the end of B.");
+static PyObject *
+bytes_append(PyByteArrayObject *self, PyObject *arg)
+{
+ int value;
+ Py_ssize_t n = Py_SIZE(self);
+
+ if (! _getbytevalue(arg, &value))
+ return NULL;
+ if (n == PY_SSIZE_T_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "cannot add more objects to bytes");
+ return NULL;
+ }
+ if (PyByteArray_Resize((PyObject *)self, n + 1) < 0)
+ return NULL;
+
+ self->ob_bytes[n] = value;
+
+ Py_RETURN_NONE;
+}
+
+PyDoc_STRVAR(extend__doc__,
+"B.extend(iterable int) -> None\n\
+\n\
+Append all the elements from the iterator or sequence to the\n\
+end of B.");
+static PyObject *
+bytes_extend(PyByteArrayObject *self, PyObject *arg)
+{
+ PyObject *it, *item, *bytes_obj;
+ Py_ssize_t buf_size = 0, len = 0;
+ int value;
+ char *buf;
+
+ /* bytes_setslice code only accepts something supporting PEP 3118. */
+ if (PyObject_CheckBuffer(arg)) {
+ if (bytes_setslice(self, Py_SIZE(self), Py_SIZE(self), arg) == -1)
+ return NULL;
+
+ Py_RETURN_NONE;
+ }
+
+ it = PyObject_GetIter(arg);
+ if (it == NULL)
+ return NULL;
+
+ /* Try to determine the length of the argument. 32 is abitrary. */
+ buf_size = _PyObject_LengthHint(arg, 32);
+
+ bytes_obj = PyByteArray_FromStringAndSize(NULL, buf_size);
+ if (bytes_obj == NULL)
+ return NULL;
+ buf = PyByteArray_AS_STRING(bytes_obj);
+
+ while ((item = PyIter_Next(it)) != NULL) {
+ if (! _getbytevalue(item, &value)) {
+ Py_DECREF(item);
+ Py_DECREF(it);
+ Py_DECREF(bytes_obj);
+ return NULL;
+ }
+ buf[len++] = value;
+ Py_DECREF(item);
+
+ if (len >= buf_size) {
+ buf_size = len + (len >> 1) + 1;
+ if (PyByteArray_Resize((PyObject *)bytes_obj, buf_size) < 0) {
+ Py_DECREF(it);
+ Py_DECREF(bytes_obj);
+ return NULL;
+ }
+ /* Recompute the `buf' pointer, since the resizing operation may
+ have invalidated it. */
+ buf = PyByteArray_AS_STRING(bytes_obj);
+ }
+ }
+ Py_DECREF(it);
+
+ /* Resize down to exact size. */
+ if (PyByteArray_Resize((PyObject *)bytes_obj, len) < 0) {
+ Py_DECREF(bytes_obj);
+ return NULL;
+ }
+
+ if (bytes_setslice(self, Py_SIZE(self), Py_SIZE(self), bytes_obj) == -1)
+ return NULL;
+ Py_DECREF(bytes_obj);
+
+ Py_RETURN_NONE;
+}
+
+PyDoc_STRVAR(pop__doc__,
+"B.pop([index]) -> int\n\
+\n\
+Remove and return a single item from B. If no index\n\
+argument is give, will pop the last value.");
+static PyObject *
+bytes_pop(PyByteArrayObject *self, PyObject *args)
+{
+ int value;
+ Py_ssize_t where = -1, n = Py_SIZE(self);
+
+ if (!PyArg_ParseTuple(args, "|n:pop", &where))
+ return NULL;
+
+ if (n == 0) {
+ PyErr_SetString(PyExc_OverflowError,
+ "cannot pop an empty bytes");
+ return NULL;
+ }
+ if (where < 0)
+ where += Py_SIZE(self);
+ if (where < 0 || where >= Py_SIZE(self)) {
+ PyErr_SetString(PyExc_IndexError, "pop index out of range");
+ return NULL;
+ }
+
+ value = self->ob_bytes[where];
+ memmove(self->ob_bytes + where, self->ob_bytes + where + 1, n - where);
+ if (PyByteArray_Resize((PyObject *)self, n - 1) < 0)
+ return NULL;
+
+ return PyInt_FromLong(value);
+}
+
+PyDoc_STRVAR(remove__doc__,
+"B.remove(int) -> None\n\
+\n\
+Remove the first occurance of a value in B.");
+static PyObject *
+bytes_remove(PyByteArrayObject *self, PyObject *arg)
+{
+ int value;
+ Py_ssize_t where, n = Py_SIZE(self);
+
+ if (! _getbytevalue(arg, &value))
+ return NULL;
+
+ for (where = 0; where < n; where++) {
+ if (self->ob_bytes[where] == value)
+ break;
+ }
+ if (where == n) {
+ PyErr_SetString(PyExc_ValueError, "value not found in bytes");
+ return NULL;
+ }
+
+ memmove(self->ob_bytes + where, self->ob_bytes + where + 1, n - where);
+ if (PyByteArray_Resize((PyObject *)self, n - 1) < 0)
+ return NULL;
+
+ Py_RETURN_NONE;
+}
+
+/* XXX These two helpers could be optimized if argsize == 1 */
+
+static Py_ssize_t
+lstrip_helper(unsigned char *myptr, Py_ssize_t mysize,
+ void *argptr, Py_ssize_t argsize)
+{
+ Py_ssize_t i = 0;
+ while (i < mysize && memchr(argptr, myptr[i], argsize))
+ i++;
+ return i;
+}
+
+static Py_ssize_t
+rstrip_helper(unsigned char *myptr, Py_ssize_t mysize,
+ void *argptr, Py_ssize_t argsize)
+{
+ Py_ssize_t i = mysize - 1;
+ while (i >= 0 && memchr(argptr, myptr[i], argsize))
+ i--;
+ return i + 1;
+}
+
+PyDoc_STRVAR(strip__doc__,
+"B.strip([bytes]) -> bytearray\n\
+\n\
+Strip leading and trailing bytes contained in the argument.\n\
+If the argument is omitted, strip ASCII whitespace.");
+static PyObject *
+bytes_strip(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t left, right, mysize, argsize;
+ void *myptr, *argptr;
+ PyObject *arg = Py_None;
+ Py_buffer varg;
+ if (!PyArg_ParseTuple(args, "|O:strip", &arg))
+ return NULL;
+ if (arg == Py_None) {
+ argptr = "\t\n\r\f\v ";
+ argsize = 6;
+ }
+ else {
+ if (_getbuffer(arg, &varg) < 0)
+ return NULL;
+ argptr = varg.buf;
+ argsize = varg.len;
+ }
+ myptr = self->ob_bytes;
+ mysize = Py_SIZE(self);
+ left = lstrip_helper(myptr, mysize, argptr, argsize);
+ if (left == mysize)
+ right = left;
+ else
+ right = rstrip_helper(myptr, mysize, argptr, argsize);
+ if (arg != Py_None)
+ PyObject_ReleaseBuffer(arg, &varg);
+ return PyByteArray_FromStringAndSize(self->ob_bytes + left, right - left);
+}
+
+PyDoc_STRVAR(lstrip__doc__,
+"B.lstrip([bytes]) -> bytearray\n\
+\n\
+Strip leading bytes contained in the argument.\n\
+If the argument is omitted, strip leading ASCII whitespace.");
+static PyObject *
+bytes_lstrip(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t left, right, mysize, argsize;
+ void *myptr, *argptr;
+ PyObject *arg = Py_None;
+ Py_buffer varg;
+ if (!PyArg_ParseTuple(args, "|O:lstrip", &arg))
+ return NULL;
+ if (arg == Py_None) {
+ argptr = "\t\n\r\f\v ";
+ argsize = 6;
+ }
+ else {
+ if (_getbuffer(arg, &varg) < 0)
+ return NULL;
+ argptr = varg.buf;
+ argsize = varg.len;
+ }
+ myptr = self->ob_bytes;
+ mysize = Py_SIZE(self);
+ left = lstrip_helper(myptr, mysize, argptr, argsize);
+ right = mysize;
+ if (arg != Py_None)
+ PyObject_ReleaseBuffer(arg, &varg);
+ return PyByteArray_FromStringAndSize(self->ob_bytes + left, right - left);
+}
+
+PyDoc_STRVAR(rstrip__doc__,
+"B.rstrip([bytes]) -> bytearray\n\
+\n\
+Strip trailing bytes contained in the argument.\n\
+If the argument is omitted, strip trailing ASCII whitespace.");
+static PyObject *
+bytes_rstrip(PyByteArrayObject *self, PyObject *args)
+{
+ Py_ssize_t left, right, mysize, argsize;
+ void *myptr, *argptr;
+ PyObject *arg = Py_None;
+ Py_buffer varg;
+ if (!PyArg_ParseTuple(args, "|O:rstrip", &arg))
+ return NULL;
+ if (arg == Py_None) {
+ argptr = "\t\n\r\f\v ";
+ argsize = 6;
+ }
+ else {
+ if (_getbuffer(arg, &varg) < 0)
+ return NULL;
+ argptr = varg.buf;
+ argsize = varg.len;
+ }
+ myptr = self->ob_bytes;
+ mysize = Py_SIZE(self);
+ left = 0;
+ right = rstrip_helper(myptr, mysize, argptr, argsize);
+ if (arg != Py_None)
+ PyObject_ReleaseBuffer(arg, &varg);
+ return PyByteArray_FromStringAndSize(self->ob_bytes + left, right - left);
+}
+
+PyDoc_STRVAR(decode_doc,
+"B.decode([encoding[, errors]]) -> unicode object.\n\
+\n\
+Decodes B using the codec registered for encoding. encoding defaults\n\
+to the default encoding. errors may be given to set a different error\n\
+handling scheme. Default is 'strict' meaning that encoding errors raise\n\
+a UnicodeDecodeError. Other possible values are 'ignore' and 'replace'\n\
+as well as any other name registered with codecs.register_error that is\n\
+able to handle UnicodeDecodeErrors.");
+
+static PyObject *
+bytes_decode(PyObject *self, PyObject *args)
+{
+ const char *encoding = NULL;
+ const char *errors = NULL;
+
+ if (!PyArg_ParseTuple(args, "|ss:decode", &encoding, &errors))
+ return NULL;
+ if (encoding == NULL)
+ encoding = PyUnicode_GetDefaultEncoding();
+ return PyCodec_Decode(self, encoding, errors);
+}
+
+PyDoc_STRVAR(alloc_doc,
+"B.__alloc__() -> int\n\
+\n\
+Returns the number of bytes actually allocated.");
+
+static PyObject *
+bytes_alloc(PyByteArrayObject *self)
+{
+ return PyInt_FromSsize_t(self->ob_alloc);
+}
+
+PyDoc_STRVAR(join_doc,
+"B.join(iterable_of_bytes) -> bytes\n\
+\n\
+Concatenates any number of bytearray objects, with B in between each pair.");
+
+static PyObject *
+bytes_join(PyByteArrayObject *self, PyObject *it)
+{
+ PyObject *seq;
+ Py_ssize_t mysize = Py_SIZE(self);
+ Py_ssize_t i;
+ Py_ssize_t n;
+ PyObject **items;
+ Py_ssize_t totalsize = 0;
+ PyObject *result;
+ char *dest;
+
+ seq = PySequence_Fast(it, "can only join an iterable");
+ if (seq == NULL)
+ return NULL;
+ n = PySequence_Fast_GET_SIZE(seq);
+ items = PySequence_Fast_ITEMS(seq);
+
+ /* Compute the total size, and check that they are all bytes */
+ /* XXX Shouldn't we use _getbuffer() on these items instead? */
+ for (i = 0; i < n; i++) {
+ PyObject *obj = items[i];
+ if (!PyByteArray_Check(obj) && !PyBytes_Check(obj)) {
+ PyErr_Format(PyExc_TypeError,
+ "can only join an iterable of bytes "
+ "(item %ld has type '%.100s')",
+ /* XXX %ld isn't right on Win64 */
+ (long)i, Py_TYPE(obj)->tp_name);
+ goto error;
+ }
+ if (i > 0)
+ totalsize += mysize;
+ totalsize += Py_SIZE(obj);
+ if (totalsize < 0) {
+ PyErr_NoMemory();
+ goto error;
+ }
+ }
+
+ /* Allocate the result, and copy the bytes */
+ result = PyByteArray_FromStringAndSize(NULL, totalsize);
+ if (result == NULL)
+ goto error;
+ dest = PyByteArray_AS_STRING(result);
+ for (i = 0; i < n; i++) {
+ PyObject *obj = items[i];
+ Py_ssize_t size = Py_SIZE(obj);
+ char *buf;
+ if (PyByteArray_Check(obj))
+ buf = PyByteArray_AS_STRING(obj);
+ else
+ buf = PyBytes_AS_STRING(obj);
+ if (i) {
+ memcpy(dest, self->ob_bytes, mysize);
+ dest += mysize;
+ }
+ memcpy(dest, buf, size);
+ dest += size;
+ }
+
+ /* Done */
+ Py_DECREF(seq);
+ return result;
+
+ /* Error handling */
+ error:
+ Py_DECREF(seq);
+ return NULL;
+}
+
+PyDoc_STRVAR(fromhex_doc,
+"bytearray.fromhex(string) -> bytearray\n\
+\n\
+Create a bytearray object from a string of hexadecimal numbers.\n\
+Spaces between two numbers are accepted.\n\
+Example: bytearray.fromhex('B9 01EF') -> bytearray(b'\\xb9\\x01\\xef').");
+
+static int
+hex_digit_to_int(Py_UNICODE c)
+{
+ if (c >= 128)
+ return -1;
+ if (ISDIGIT(c))
+ return c - '0';
+ else {
+ if (ISUPPER(c))
+ c = TOLOWER(c);
+ if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ }
+ return -1;
+}
+
+static PyObject *
+bytes_fromhex(PyObject *cls, PyObject *args)
+{
+ PyObject *newbytes, *hexobj;
+ char *buf;
+ Py_UNICODE *hex;
+ Py_ssize_t hexlen, byteslen, i, j;
+ int top, bot;
+
+ if (!PyArg_ParseTuple(args, "U:fromhex", &hexobj))
+ return NULL;
+ assert(PyUnicode_Check(hexobj));
+ hexlen = PyUnicode_GET_SIZE(hexobj);
+ hex = PyUnicode_AS_UNICODE(hexobj);
+ byteslen = hexlen/2; /* This overestimates if there are spaces */
+ newbytes = PyByteArray_FromStringAndSize(NULL, byteslen);
+ if (!newbytes)
+ return NULL;
+ buf = PyByteArray_AS_STRING(newbytes);
+ for (i = j = 0; i < hexlen; i += 2) {
+ /* skip over spaces in the input */
+ while (hex[i] == ' ')
+ i++;
+ if (i >= hexlen)
+ break;
+ top = hex_digit_to_int(hex[i]);
+ bot = hex_digit_to_int(hex[i+1]);
+ if (top == -1 || bot == -1) {
+ PyErr_Format(PyExc_ValueError,
+ "non-hexadecimal number found in "
+ "fromhex() arg at position %zd", i);
+ goto error;
+ }
+ buf[j++] = (top << 4) + bot;
+ }
+ if (PyByteArray_Resize(newbytes, j) < 0)
+ goto error;
+ return newbytes;
+
+ error:
+ Py_DECREF(newbytes);
+ return NULL;
+}
+
+PyDoc_STRVAR(reduce_doc, "Return state information for pickling.");
+
+static PyObject *
+bytes_reduce(PyByteArrayObject *self)
+{
+ PyObject *latin1, *dict;
+ if (self->ob_bytes)
+ latin1 = PyUnicode_DecodeLatin1(self->ob_bytes,
+ Py_SIZE(self), NULL);
+ else
+ latin1 = PyUnicode_FromString("");
+
+ dict = PyObject_GetAttrString((PyObject *)self, "__dict__");
+ if (dict == NULL) {
+ PyErr_Clear();
+ dict = Py_None;
+ Py_INCREF(dict);
+ }
+
+ return Py_BuildValue("(O(Ns)N)", Py_TYPE(self), latin1, "latin-1", dict);
+}
+
+static PySequenceMethods bytes_as_sequence = {
+ (lenfunc)bytes_length, /* sq_length */
+ (binaryfunc)PyByteArray_Concat, /* sq_concat */
+ (ssizeargfunc)bytes_repeat, /* sq_repeat */
+ (ssizeargfunc)bytes_getitem, /* sq_item */
+ 0, /* sq_slice */
+ (ssizeobjargproc)bytes_setitem, /* sq_ass_item */
+ 0, /* sq_ass_slice */
+ (objobjproc)bytes_contains, /* sq_contains */
+ (binaryfunc)bytes_iconcat, /* sq_inplace_concat */
+ (ssizeargfunc)bytes_irepeat, /* sq_inplace_repeat */
+};
+
+static PyMappingMethods bytes_as_mapping = {
+ (lenfunc)bytes_length,
+ (binaryfunc)bytes_subscript,
+ (objobjargproc)bytes_ass_subscript,
+};
+
+static PyBufferProcs bytes_as_buffer = {
+ (readbufferproc)bytes_buffer_getreadbuf,
+ (writebufferproc)bytes_buffer_getwritebuf,
+ (segcountproc)bytes_buffer_getsegcount,
+ (charbufferproc)bytes_buffer_getcharbuf,
+ (getbufferproc)bytes_getbuffer,
+ (releasebufferproc)bytes_releasebuffer,
+};
+
+static PyMethodDef
+bytes_methods[] = {
+ {"__alloc__", (PyCFunction)bytes_alloc, METH_NOARGS, alloc_doc},
+ {"__reduce__", (PyCFunction)bytes_reduce, METH_NOARGS, reduce_doc},
+ {"append", (PyCFunction)bytes_append, METH_O, append__doc__},
+ {"capitalize", (PyCFunction)stringlib_capitalize, METH_NOARGS,
+ _Py_capitalize__doc__},
+ {"center", (PyCFunction)stringlib_center, METH_VARARGS, center__doc__},
+ {"count", (PyCFunction)bytes_count, METH_VARARGS, count__doc__},
+ {"decode", (PyCFunction)bytes_decode, METH_VARARGS, decode_doc},
+ {"endswith", (PyCFunction)bytes_endswith, METH_VARARGS, endswith__doc__},
+ {"expandtabs", (PyCFunction)stringlib_expandtabs, METH_VARARGS,
+ expandtabs__doc__},
+ {"extend", (PyCFunction)bytes_extend, METH_O, extend__doc__},
+ {"find", (PyCFunction)bytes_find, METH_VARARGS, find__doc__},
+ {"fromhex", (PyCFunction)bytes_fromhex, METH_VARARGS|METH_CLASS,
+ fromhex_doc},
+ {"index", (PyCFunction)bytes_index, METH_VARARGS, index__doc__},
+ {"insert", (PyCFunction)bytes_insert, METH_VARARGS, insert__doc__},
+ {"isalnum", (PyCFunction)stringlib_isalnum, METH_NOARGS,
+ _Py_isalnum__doc__},
+ {"isalpha", (PyCFunction)stringlib_isalpha, METH_NOARGS,
+ _Py_isalpha__doc__},
+ {"isdigit", (PyCFunction)stringlib_isdigit, METH_NOARGS,
+ _Py_isdigit__doc__},
+ {"islower", (PyCFunction)stringlib_islower, METH_NOARGS,
+ _Py_islower__doc__},
+ {"isspace", (PyCFunction)stringlib_isspace, METH_NOARGS,
+ _Py_isspace__doc__},
+ {"istitle", (PyCFunction)stringlib_istitle, METH_NOARGS,
+ _Py_istitle__doc__},
+ {"isupper", (PyCFunction)stringlib_isupper, METH_NOARGS,
+ _Py_isupper__doc__},
+ {"join", (PyCFunction)bytes_join, METH_O, join_doc},
+ {"ljust", (PyCFunction)stringlib_ljust, METH_VARARGS, ljust__doc__},
+ {"lower", (PyCFunction)stringlib_lower, METH_NOARGS, _Py_lower__doc__},
+ {"lstrip", (PyCFunction)bytes_lstrip, METH_VARARGS, lstrip__doc__},
+ {"partition", (PyCFunction)bytes_partition, METH_O, partition__doc__},
+ {"pop", (PyCFunction)bytes_pop, METH_VARARGS, pop__doc__},
+ {"remove", (PyCFunction)bytes_remove, METH_O, remove__doc__},
+ {"replace", (PyCFunction)bytes_replace, METH_VARARGS, replace__doc__},
+ {"reverse", (PyCFunction)bytes_reverse, METH_NOARGS, reverse__doc__},
+ {"rfind", (PyCFunction)bytes_rfind, METH_VARARGS, rfind__doc__},
+ {"rindex", (PyCFunction)bytes_rindex, METH_VARARGS, rindex__doc__},
+ {"rjust", (PyCFunction)stringlib_rjust, METH_VARARGS, rjust__doc__},
+ {"rpartition", (PyCFunction)bytes_rpartition, METH_O, rpartition__doc__},
+ {"rsplit", (PyCFunction)bytes_rsplit, METH_VARARGS, rsplit__doc__},
+ {"rstrip", (PyCFunction)bytes_rstrip, METH_VARARGS, rstrip__doc__},
+ {"split", (PyCFunction)bytes_split, METH_VARARGS, split__doc__},
+ {"splitlines", (PyCFunction)stringlib_splitlines, METH_VARARGS,
+ splitlines__doc__},
+ {"startswith", (PyCFunction)bytes_startswith, METH_VARARGS ,
+ startswith__doc__},
+ {"strip", (PyCFunction)bytes_strip, METH_VARARGS, strip__doc__},
+ {"swapcase", (PyCFunction)stringlib_swapcase, METH_NOARGS,
+ _Py_swapcase__doc__},
+ {"title", (PyCFunction)stringlib_title, METH_NOARGS, _Py_title__doc__},
+ {"translate", (PyCFunction)bytes_translate, METH_VARARGS,
+ translate__doc__},
+ {"upper", (PyCFunction)stringlib_upper, METH_NOARGS, _Py_upper__doc__},
+ {"zfill", (PyCFunction)stringlib_zfill, METH_VARARGS, zfill__doc__},
+ {NULL}
+};
+
+PyDoc_STRVAR(bytes_doc,
+"bytearray(iterable_of_ints) -> bytearray.\n\
+bytearray(string, encoding[, errors]) -> bytearray.\n\
+bytearray(bytes_or_bytearray) -> mutable copy of bytes_or_bytearray.\n\
+bytearray(memory_view) -> bytearray.\n\
+\n\
+Construct an mutable bytearray object from:\n\
+ - an iterable yielding integers in range(256)\n\
+ - a text string encoded using the specified encoding\n\
+ - a bytes or a bytearray object\n\
+ - any object implementing the buffer API.\n\
+\n\
+bytearray(int) -> bytearray.\n\
+\n\
+Construct a zero-initialized bytearray of the given length.");
+
+
+static PyObject *bytes_iter(PyObject *seq);
+
+PyTypeObject PyByteArray_Type = {
+ PyVarObject_HEAD_INIT(&PyType_Type, 0)
+ "bytearray",
+ sizeof(PyByteArrayObject),
+ 0,
+ (destructor)bytes_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ (reprfunc)bytes_repr, /* tp_repr */
+ 0, /* tp_as_number */
+ &bytes_as_sequence, /* tp_as_sequence */
+ &bytes_as_mapping, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ bytes_str, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ &bytes_as_buffer, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HAVE_NEWBUFFER, /* tp_flags */
+ bytes_doc, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ (richcmpfunc)bytes_richcompare, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ bytes_iter, /* tp_iter */
+ 0, /* tp_iternext */
+ bytes_methods, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)bytes_init, /* tp_init */
+ PyType_GenericAlloc, /* tp_alloc */
+ PyType_GenericNew, /* tp_new */
+ PyObject_Del, /* tp_free */
+};
+
+/*********************** Bytes Iterator ****************************/
+
+typedef struct {
+ PyObject_HEAD
+ Py_ssize_t it_index;
+ PyByteArrayObject *it_seq; /* Set to NULL when iterator is exhausted */
+} bytesiterobject;
+
+static void
+bytesiter_dealloc(bytesiterobject *it)
+{
+ _PyObject_GC_UNTRACK(it);
+ Py_XDECREF(it->it_seq);
+ PyObject_GC_Del(it);
+}
+
+static int
+bytesiter_traverse(bytesiterobject *it, visitproc visit, void *arg)
+{
+ Py_VISIT(it->it_seq);
+ return 0;
+}
+
+static PyObject *
+bytesiter_next(bytesiterobject *it)
+{
+ PyByteArrayObject *seq;
+ PyObject *item;
+
+ assert(it != NULL);
+ seq = it->it_seq;
+ if (seq == NULL)
+ return NULL;
+ assert(PyByteArray_Check(seq));
+
+ if (it->it_index < PyByteArray_GET_SIZE(seq)) {
+ item = PyInt_FromLong(
+ (unsigned char)seq->ob_bytes[it->it_index]);
+ if (item != NULL)
+ ++it->it_index;
+ return item;
+ }
+
+ Py_DECREF(seq);
+ it->it_seq = NULL;
+ return NULL;
+}
+
+static PyObject *
+bytesiter_length_hint(bytesiterobject *it)
+{
+ Py_ssize_t len = 0;
+ if (it->it_seq)
+ len = PyByteArray_GET_SIZE(it->it_seq) - it->it_index;
+ return PyInt_FromSsize_t(len);
+}
+
+PyDoc_STRVAR(length_hint_doc,
+ "Private method returning an estimate of len(list(it)).");
+
+static PyMethodDef bytesiter_methods[] = {
+ {"__length_hint__", (PyCFunction)bytesiter_length_hint, METH_NOARGS,
+ length_hint_doc},
+ {NULL, NULL} /* sentinel */
+};
+
+PyTypeObject PyByteArrayIter_Type = {
+ PyVarObject_HEAD_INIT(&PyType_Type, 0)
+ "bytearray_iterator", /* tp_name */
+ sizeof(bytesiterobject), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ /* methods */
+ (destructor)bytesiter_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
+ 0, /* tp_doc */
+ (traverseproc)bytesiter_traverse, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ PyObject_SelfIter, /* tp_iter */
+ (iternextfunc)bytesiter_next, /* tp_iternext */
+ bytesiter_methods, /* tp_methods */
+ 0,
+};
+
+static PyObject *
+bytes_iter(PyObject *seq)
+{
+ bytesiterobject *it;
+
+ if (!PyByteArray_Check(seq)) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+ it = PyObject_GC_New(bytesiterobject, &PyByteArrayIter_Type);
+ if (it == NULL)
+ return NULL;
+ it->it_index = 0;
+ Py_INCREF(seq);
+ it->it_seq = (PyByteArrayObject *)seq;
+ _PyObject_GC_TRACK(it);
+ return (PyObject *)it;
+}
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 6e5df19..0f4d4c3 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -1,1515 +1,2538 @@
-/* PyBytes (bytearray) implementation */
+/* String object implementation */
#define PY_SSIZE_T_CLEAN
+
#include "Python.h"
-#include "structmember.h"
-#include "bytes_methods.h"
-static PyByteArrayObject *nullbytes = NULL;
+#include "formatter_string.h"
-void
-PyByteArray_Fini(void)
+#include <ctype.h>
+
+#ifdef COUNT_ALLOCS
+int null_strings, one_strings;
+#endif
+
+static PyBytesObject *characters[UCHAR_MAX + 1];
+static PyBytesObject *nullstring;
+
+/* This dictionary holds all interned strings. Note that references to
+ strings in this dictionary are *not* counted in the string's ob_refcnt.
+ When the interned string reaches a refcnt of 0 the string deallocation
+ function will delete the reference from this dictionary.
+
+ Another way to look at this is that to say that the actual reference
+ count of a string is: s->ob_refcnt + (s->ob_sstate?2:0)
+*/
+static PyObject *interned;
+
+/*
+ For both PyBytes_FromString() and PyBytes_FromStringAndSize(), the
+ parameter `size' denotes number of characters to allocate, not counting any
+ null terminating character.
+
+ For PyBytes_FromString(), the parameter `str' points to a null-terminated
+ string containing exactly `size' bytes.
+
+ For PyBytes_FromStringAndSize(), the parameter the parameter `str' is
+ either NULL or else points to a string containing at least `size' bytes.
+ For PyBytes_FromStringAndSize(), the string in the `str' parameter does
+ not have to be null-terminated. (Therefore it is safe to construct a
+ substring by calling `PyBytes_FromStringAndSize(origstring, substrlen)'.)
+ If `str' is NULL then PyBytes_FromStringAndSize() will allocate `size+1'
+ bytes (setting the last byte to the null terminating character) and you can
+ fill in the data yourself. If `str' is non-NULL then the resulting
+ PyString object must be treated as immutable and you must not fill in nor
+ alter the data yourself, since the strings may be shared.
+
+ The PyObject member `op->ob_size', which denotes the number of "extra
+ items" in a variable-size object, will contain the number of bytes
+ allocated for string data, not counting the null terminating character. It
+ is therefore equal to the equal to the `size' parameter (for
+ PyBytes_FromStringAndSize()) or the length of the string in the `str'
+ parameter (for PyBytes_FromString()).
+*/
+PyObject *
+PyBytes_FromStringAndSize(const char *str, Py_ssize_t size)
{
- Py_CLEAR(nullbytes);
+ register PyBytesObject *op;
+ if (size < 0) {
+ PyErr_SetString(PyExc_SystemError,
+ "Negative size passed to PyBytes_FromStringAndSize");
+ return NULL;
+ }
+ if (size == 0 && (op = nullstring) != NULL) {
+#ifdef COUNT_ALLOCS
+ null_strings++;
+#endif
+ Py_INCREF(op);
+ return (PyObject *)op;
+ }
+ if (size == 1 && str != NULL &&
+ (op = characters[*str & UCHAR_MAX]) != NULL)
+ {
+#ifdef COUNT_ALLOCS
+ one_strings++;
+#endif
+ Py_INCREF(op);
+ return (PyObject *)op;
+ }
+
+ /* Inline PyObject_NewVar */
+ op = (PyBytesObject *)PyObject_MALLOC(sizeof(PyBytesObject) + size);
+ if (op == NULL)
+ return PyErr_NoMemory();
+ PyObject_INIT_VAR(op, &PyBytes_Type, size);
+ op->ob_shash = -1;
+ op->ob_sstate = SSTATE_NOT_INTERNED;
+ if (str != NULL)
+ Py_MEMCPY(op->ob_sval, str, size);
+ op->ob_sval[size] = '\0';
+ /* share short strings */
+ if (size == 0) {
+ PyObject *t = (PyObject *)op;
+ PyBytes_InternInPlace(&t);
+ op = (PyBytesObject *)t;
+ nullstring = op;
+ Py_INCREF(op);
+ } else if (size == 1 && str != NULL) {
+ PyObject *t = (PyObject *)op;
+ PyBytes_InternInPlace(&t);
+ op = (PyBytesObject *)t;
+ characters[*str & UCHAR_MAX] = op;
+ Py_INCREF(op);
+ }
+ return (PyObject *) op;
}
-int
-PyByteArray_Init(void)
+PyObject *
+PyBytes_FromString(const char *str)
{
- nullbytes = PyObject_New(PyByteArrayObject, &PyByteArray_Type);
- if (nullbytes == NULL)
- return 0;
- nullbytes->ob_bytes = NULL;
- Py_SIZE(nullbytes) = nullbytes->ob_alloc = 0;
- nullbytes->ob_exports = 0;
- return 1;
+ register size_t size;
+ register PyBytesObject *op;
+
+ assert(str != NULL);
+ size = strlen(str);
+ if (size > PY_SSIZE_T_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "string is too long for a Python string");
+ return NULL;
+ }
+ if (size == 0 && (op = nullstring) != NULL) {
+#ifdef COUNT_ALLOCS
+ null_strings++;
+#endif
+ Py_INCREF(op);
+ return (PyObject *)op;
+ }
+ if (size == 1 && (op = characters[*str & UCHAR_MAX]) != NULL) {
+#ifdef COUNT_ALLOCS
+ one_strings++;
+#endif
+ Py_INCREF(op);
+ return (PyObject *)op;
+ }
+
+ /* Inline PyObject_NewVar */
+ op = (PyBytesObject *)PyObject_MALLOC(sizeof(PyBytesObject) + size);
+ if (op == NULL)
+ return PyErr_NoMemory();
+ PyObject_INIT_VAR(op, &PyBytes_Type, size);
+ op->ob_shash = -1;
+ op->ob_sstate = SSTATE_NOT_INTERNED;
+ Py_MEMCPY(op->ob_sval, str, size+1);
+ /* share short strings */
+ if (size == 0) {
+ PyObject *t = (PyObject *)op;
+ PyBytes_InternInPlace(&t);
+ op = (PyBytesObject *)t;
+ nullstring = op;
+ Py_INCREF(op);
+ } else if (size == 1) {
+ PyObject *t = (PyObject *)op;
+ PyBytes_InternInPlace(&t);
+ op = (PyBytesObject *)t;
+ characters[*str & UCHAR_MAX] = op;
+ Py_INCREF(op);
+ }
+ return (PyObject *) op;
}
-/* end nullbytes support */
-
-/* Helpers */
-
-static int
-_getbytevalue(PyObject* arg, int *value)
+PyObject *
+PyBytes_FromFormatV(const char *format, va_list vargs)
{
- long face_value;
+ va_list count;
+ Py_ssize_t n = 0;
+ const char* f;
+ char *s;
+ PyObject* string;
+
+#ifdef VA_LIST_IS_ARRAY
+ Py_MEMCPY(count, vargs, sizeof(va_list));
+#else
+#ifdef __va_copy
+ __va_copy(count, vargs);
+#else
+ count = vargs;
+#endif
+#endif
+ /* step 1: figure out how large a buffer we need */
+ for (f = format; *f; f++) {
+ if (*f == '%') {
+ const char* p = f;
+ while (*++f && *f != '%' && !isalpha(Py_CHARMASK(*f)))
+ ;
+
+ /* skip the 'l' or 'z' in {%ld, %zd, %lu, %zu} since
+ * they don't affect the amount of space we reserve.
+ */
+ if ((*f == 'l' || *f == 'z') &&
+ (f[1] == 'd' || f[1] == 'u'))
+ ++f;
+
+ switch (*f) {
+ case 'c':
+ (void)va_arg(count, int);
+ /* fall through... */
+ case '%':
+ n++;
+ break;
+ case 'd': case 'u': case 'i': case 'x':
+ (void) va_arg(count, int);
+ /* 20 bytes is enough to hold a 64-bit
+ integer. Decimal takes the most space.
+ This isn't enough for octal. */
+ n += 20;
+ break;
+ case 's':
+ s = va_arg(count, char*);
+ n += strlen(s);
+ break;
+ case 'p':
+ (void) va_arg(count, int);
+ /* maximum 64-bit pointer representation:
+ * 0xffffffffffffffff
+ * so 19 characters is enough.
+ * XXX I count 18 -- what's the extra for?
+ */
+ n += 19;
+ break;
+ default:
+ /* if we stumble upon an unknown
+ formatting code, copy the rest of
+ the format string to the output
+ string. (we cannot just skip the
+ code, since there's no way to know
+ what's in the argument list) */
+ n += strlen(p);
+ goto expand;
+ }
+ } else
+ n++;
+ }
+ expand:
+ /* step 2: fill the buffer */
+ /* Since we've analyzed how much space we need for the worst case,
+ use sprintf directly instead of the slower PyOS_snprintf. */
+ string = PyBytes_FromStringAndSize(NULL, n);
+ if (!string)
+ return NULL;
+
+ s = PyBytes_AsString(string);
+
+ for (f = format; *f; f++) {
+ if (*f == '%') {
+ const char* p = f++;
+ Py_ssize_t i;
+ int longflag = 0;
+ int size_tflag = 0;
+ /* parse the width.precision part (we're only
+ interested in the precision value, if any) */
+ n = 0;
+ while (isdigit(Py_CHARMASK(*f)))
+ n = (n*10) + *f++ - '0';
+ if (*f == '.') {
+ f++;
+ n = 0;
+ while (isdigit(Py_CHARMASK(*f)))
+ n = (n*10) + *f++ - '0';
+ }
+ while (*f && *f != '%' && !isalpha(Py_CHARMASK(*f)))
+ f++;
+ /* handle the long flag, but only for %ld and %lu.
+ others can be added when necessary. */
+ if (*f == 'l' && (f[1] == 'd' || f[1] == 'u')) {
+ longflag = 1;
+ ++f;
+ }
+ /* handle the size_t flag. */
+ if (*f == 'z' && (f[1] == 'd' || f[1] == 'u')) {
+ size_tflag = 1;
+ ++f;
+ }
+
+ switch (*f) {
+ case 'c':
+ *s++ = va_arg(vargs, int);
+ break;
+ case 'd':
+ if (longflag)
+ sprintf(s, "%ld", va_arg(vargs, long));
+ else if (size_tflag)
+ sprintf(s, "%" PY_FORMAT_SIZE_T "d",
+ va_arg(vargs, Py_ssize_t));
+ else
+ sprintf(s, "%d", va_arg(vargs, int));
+ s += strlen(s);
+ break;
+ case 'u':
+ if (longflag)
+ sprintf(s, "%lu",
+ va_arg(vargs, unsigned long));
+ else if (size_tflag)
+ sprintf(s, "%" PY_FORMAT_SIZE_T "u",
+ va_arg(vargs, size_t));
+ else
+ sprintf(s, "%u",
+ va_arg(vargs, unsigned int));
+ s += strlen(s);
+ break;
+ case 'i':
+ sprintf(s, "%i", va_arg(vargs, int));
+ s += strlen(s);
+ break;
+ case 'x':
+ sprintf(s, "%x", va_arg(vargs, int));
+ s += strlen(s);
+ break;
+ case 's':
+ p = va_arg(vargs, char*);
+ i = strlen(p);
+ if (n > 0 && i > n)
+ i = n;
+ Py_MEMCPY(s, p, i);
+ s += i;
+ break;
+ case 'p':
+ sprintf(s, "%p", va_arg(vargs, void*));
+ /* %p is ill-defined: ensure leading 0x. */
+ if (s[1] == 'X')
+ s[1] = 'x';
+ else if (s[1] != 'x') {
+ memmove(s+2, s, strlen(s)+1);
+ s[0] = '0';
+ s[1] = 'x';
+ }
+ s += strlen(s);
+ break;
+ case '%':
+ *s++ = '%';
+ break;
+ default:
+ strcpy(s, p);
+ s += strlen(s);
+ goto end;
+ }
+ } else
+ *s++ = *f;
+ }
+
+ end:
+ _PyBytes_Resize(&string, s - PyBytes_AS_STRING(string));
+ return string;
+}
- if (PyInt_Check(arg)) {
- face_value = PyInt_AsLong(arg);
- if (face_value < 0 || face_value >= 256) {
- PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
- return 0;
- }
- }
- else if (PyBytes_CheckExact(arg)) {
- if (Py_SIZE(arg) != 1) {
- PyErr_SetString(PyExc_ValueError, "string must be of size 1");
- return 0;
- }
- face_value = Py_CHARMASK(((PyBytesObject*)arg)->ob_sval[0]);
- }
- else {
- PyErr_Format(PyExc_TypeError, "an integer or string of size 1 is required");
- return 0;
- }
+PyObject *
+PyBytes_FromFormat(const char *format, ...)
+{
+ PyObject* ret;
+ va_list vargs;
- *value = face_value;
- return 1;
+#ifdef HAVE_STDARG_PROTOTYPES
+ va_start(vargs, format);
+#else
+ va_start(vargs);
+#endif
+ ret = PyBytes_FromFormatV(format, vargs);
+ va_end(vargs);
+ return ret;
}
-static Py_ssize_t
-bytes_buffer_getreadbuf(PyByteArrayObject *self, Py_ssize_t index, const void **ptr)
+
+PyObject *PyBytes_Decode(const char *s,
+ Py_ssize_t size,
+ const char *encoding,
+ const char *errors)
{
- if ( index != 0 ) {
- PyErr_SetString(PyExc_SystemError,
- "accessing non-existent bytes segment");
- return -1;
- }
- *ptr = (void *)self->ob_bytes;
- return Py_SIZE(self);
+ PyObject *v, *str;
+
+ str = PyBytes_FromStringAndSize(s, size);
+ if (str == NULL)
+ return NULL;
+ v = PyBytes_AsDecodedString(str, encoding, errors);
+ Py_DECREF(str);
+ return v;
}
-static Py_ssize_t
-bytes_buffer_getwritebuf(PyByteArrayObject *self, Py_ssize_t index, const void **ptr)
+PyObject *PyBytes_AsDecodedObject(PyObject *str,
+ const char *encoding,
+ const char *errors)
{
- if ( index != 0 ) {
- PyErr_SetString(PyExc_SystemError,
- "accessing non-existent bytes segment");
- return -1;
+ PyObject *v;
+
+ if (!PyBytes_Check(str)) {
+ PyErr_BadArgument();
+ goto onError;
}
- *ptr = (void *)self->ob_bytes;
- return Py_SIZE(self);
-}
-static Py_ssize_t
-bytes_buffer_getsegcount(PyByteArrayObject *self, Py_ssize_t *lenp)
-{
- if ( lenp )
- *lenp = Py_SIZE(self);
- return 1;
+ if (encoding == NULL) {
+#ifdef Py_USING_UNICODE
+ encoding = PyUnicode_GetDefaultEncoding();
+#else
+ PyErr_SetString(PyExc_ValueError, "no encoding specified");
+ goto onError;
+#endif
+ }
+
+ /* Decode via the codec registry */
+ v = PyCodec_Decode(str, encoding, errors);
+ if (v == NULL)
+ goto onError;
+
+ return v;
+
+ onError:
+ return NULL;
}
-static Py_ssize_t
-bytes_buffer_getcharbuf(PyByteArrayObject *self, Py_ssize_t index, const char **ptr)
+PyObject *PyBytes_AsDecodedString(PyObject *str,
+ const char *encoding,
+ const char *errors)
{
- if ( index != 0 ) {
- PyErr_SetString(PyExc_SystemError,
- "accessing non-existent bytes segment");
- return -1;
+ PyObject *v;
+
+ v = PyBytes_AsDecodedObject(str, encoding, errors);
+ if (v == NULL)
+ goto onError;
+
+#ifdef Py_USING_UNICODE
+ /* Convert Unicode to a string using the default encoding */
+ if (PyUnicode_Check(v)) {
+ PyObject *temp = v;
+ v = PyUnicode_AsEncodedString(v, NULL, NULL);
+ Py_DECREF(temp);
+ if (v == NULL)
+ goto onError;
}
- *ptr = self->ob_bytes;
- return Py_SIZE(self);
+#endif
+ if (!PyBytes_Check(v)) {
+ PyErr_Format(PyExc_TypeError,
+ "decoder did not return a string object (type=%.400s)",
+ Py_TYPE(v)->tp_name);
+ Py_DECREF(v);
+ goto onError;
+ }
+
+ return v;
+
+ onError:
+ return NULL;
}
-static int
-bytes_getbuffer(PyByteArrayObject *obj, Py_buffer *view, int flags)
+PyObject *PyBytes_Encode(const char *s,
+ Py_ssize_t size,
+ const char *encoding,
+ const char *errors)
{
- int ret;
- void *ptr;
- if (view == NULL) {
- obj->ob_exports++;
- return 0;
- }
- if (obj->ob_bytes == NULL)
- ptr = "";
- else
- ptr = obj->ob_bytes;
- ret = PyBuffer_FillInfo(view, ptr, Py_SIZE(obj), 0, flags);
- if (ret >= 0) {
- obj->ob_exports++;
- }
- return ret;
+ PyObject *v, *str;
+
+ str = PyBytes_FromStringAndSize(s, size);
+ if (str == NULL)
+ return NULL;
+ v = PyBytes_AsEncodedString(str, encoding, errors);
+ Py_DECREF(str);
+ return v;
}
-static void
-bytes_releasebuffer(PyByteArrayObject *obj, Py_buffer *view)
+PyObject *PyBytes_AsEncodedObject(PyObject *str,
+ const char *encoding,
+ const char *errors)
{
- obj->ob_exports--;
+ PyObject *v;
+
+ if (!PyBytes_Check(str)) {
+ PyErr_BadArgument();
+ goto onError;
+ }
+
+ if (encoding == NULL) {
+#ifdef Py_USING_UNICODE
+ encoding = PyUnicode_GetDefaultEncoding();
+#else
+ PyErr_SetString(PyExc_ValueError, "no encoding specified");
+ goto onError;
+#endif
+ }
+
+ /* Encode via the codec registry */
+ v = PyCodec_Encode(str, encoding, errors);
+ if (v == NULL)
+ goto onError;
+
+ return v;
+
+ onError:
+ return NULL;
}
-static Py_ssize_t
-_getbuffer(PyObject *obj, Py_buffer *view)
+PyObject *PyBytes_AsEncodedString(PyObject *str,
+ const char *encoding,
+ const char *errors)
{
- PyBufferProcs *buffer = Py_TYPE(obj)->tp_as_buffer;
+ PyObject *v;
+
+ v = PyBytes_AsEncodedObject(str, encoding, errors);
+ if (v == NULL)
+ goto onError;
- if (buffer == NULL || buffer->bf_getbuffer == NULL)
- {
+#ifdef Py_USING_UNICODE
+ /* Convert Unicode to a string using the default encoding */
+ if (PyUnicode_Check(v)) {
+ PyObject *temp = v;
+ v = PyUnicode_AsEncodedString(v, NULL, NULL);
+ Py_DECREF(temp);
+ if (v == NULL)
+ goto onError;
+ }
+#endif
+ if (!PyBytes_Check(v)) {
PyErr_Format(PyExc_TypeError,
- "Type %.100s doesn't support the buffer API",
- Py_TYPE(obj)->tp_name);
- return -1;
+ "encoder did not return a string object (type=%.400s)",
+ Py_TYPE(v)->tp_name);
+ Py_DECREF(v);
+ goto onError;
}
- if (buffer->bf_getbuffer(obj, view, PyBUF_SIMPLE) < 0)
- return -1;
- return view->len;
-}
+ return v;
-/* Direct API functions */
+ onError:
+ return NULL;
+}
-PyObject *
-PyByteArray_FromObject(PyObject *input)
+static void
+string_dealloc(PyObject *op)
{
- return PyObject_CallFunctionObjArgs((PyObject *)&PyByteArray_Type,
- input, NULL);
+ switch (PyBytes_CHECK_INTERNED(op)) {
+ case SSTATE_NOT_INTERNED:
+ break;
+
+ case SSTATE_INTERNED_MORTAL:
+ /* revive dead object temporarily for DelItem */
+ Py_REFCNT(op) = 3;
+ if (PyDict_DelItem(interned, op) != 0)
+ Py_FatalError(
+ "deletion of interned string failed");
+ break;
+
+ case SSTATE_INTERNED_IMMORTAL:
+ Py_FatalError("Immortal interned string died.");
+
+ default:
+ Py_FatalError("Inconsistent interned string state.");
+ }
+ Py_TYPE(op)->tp_free(op);
}
-PyObject *
-PyByteArray_FromStringAndSize(const char *bytes, Py_ssize_t size)
-{
- PyByteArrayObject *new;
- Py_ssize_t alloc;
+/* Unescape a backslash-escaped string. If unicode is non-zero,
+ the string is a u-literal. If recode_encoding is non-zero,
+ the string is UTF-8 encoded and should be re-encoded in the
+ specified encoding. */
- if (size < 0) {
- PyErr_SetString(PyExc_SystemError,
- "Negative size passed to PyByteArray_FromStringAndSize");
- return NULL;
- }
+PyObject *PyBytes_DecodeEscape(const char *s,
+ Py_ssize_t len,
+ const char *errors,
+ Py_ssize_t unicode,
+ const char *recode_encoding)
+{
+ int c;
+ char *p, *buf;
+ const char *end;
+ PyObject *v;
+ Py_ssize_t newlen = recode_encoding ? 4*len:len;
+ v = PyBytes_FromStringAndSize((char *)NULL, newlen);
+ if (v == NULL)
+ return NULL;
+ p = buf = PyBytes_AsString(v);
+ end = s + len;
+ while (s < end) {
+ if (*s != '\\') {
+ non_esc:
+#ifdef Py_USING_UNICODE
+ if (recode_encoding && (*s & 0x80)) {
+ PyObject *u, *w;
+ char *r;
+ const char* t;
+ Py_ssize_t rn;
+ t = s;
+ /* Decode non-ASCII bytes as UTF-8. */
+ while (t < end && (*t & 0x80)) t++;
+ u = PyUnicode_DecodeUTF8(s, t - s, errors);
+ if(!u) goto failed;
+
+ /* Recode them in target encoding. */
+ w = PyUnicode_AsEncodedString(
+ u, recode_encoding, errors);
+ Py_DECREF(u);
+ if (!w) goto failed;
+
+ /* Append bytes to output buffer. */
+ assert(PyBytes_Check(w));
+ r = PyBytes_AS_STRING(w);
+ rn = PyBytes_GET_SIZE(w);
+ Py_MEMCPY(p, r, rn);
+ p += rn;
+ Py_DECREF(w);
+ s = t;
+ } else {
+ *p++ = *s++;
+ }
+#else
+ *p++ = *s++;
+#endif
+ continue;
+ }
+ s++;
+ if (s==end) {
+ PyErr_SetString(PyExc_ValueError,
+ "Trailing \\ in string");
+ goto failed;
+ }
+ switch (*s++) {
+ /* XXX This assumes ASCII! */
+ case '\n': break;
+ case '\\': *p++ = '\\'; break;
+ case '\'': *p++ = '\''; break;
+ case '\"': *p++ = '\"'; break;
+ case 'b': *p++ = '\b'; break;
+ case 'f': *p++ = '\014'; break; /* FF */
+ case 't': *p++ = '\t'; break;
+ case 'n': *p++ = '\n'; break;
+ case 'r': *p++ = '\r'; break;
+ case 'v': *p++ = '\013'; break; /* VT */
+ case 'a': *p++ = '\007'; break; /* BEL, not classic C */
+ case '0': case '1': case '2': case '3':
+ case '4': case '5': case '6': case '7':
+ c = s[-1] - '0';
+ if (s < end && '0' <= *s && *s <= '7') {
+ c = (c<<3) + *s++ - '0';
+ if (s < end && '0' <= *s && *s <= '7')
+ c = (c<<3) + *s++ - '0';
+ }
+ *p++ = c;
+ break;
+ case 'x':
+ if (s+1 < end &&
+ isxdigit(Py_CHARMASK(s[0])) &&
+ isxdigit(Py_CHARMASK(s[1])))
+ {
+ unsigned int x = 0;
+ c = Py_CHARMASK(*s);
+ s++;
+ if (isdigit(c))
+ x = c - '0';
+ else if (islower(c))
+ x = 10 + c - 'a';
+ else
+ x = 10 + c - 'A';
+ x = x << 4;
+ c = Py_CHARMASK(*s);
+ s++;
+ if (isdigit(c))
+ x += c - '0';
+ else if (islower(c))
+ x += 10 + c - 'a';
+ else
+ x += 10 + c - 'A';
+ *p++ = x;
+ break;
+ }
+ if (!errors || strcmp(errors, "strict") == 0) {
+ PyErr_SetString(PyExc_ValueError,
+ "invalid \\x escape");
+ goto failed;
+ }
+ if (strcmp(errors, "replace") == 0) {
+ *p++ = '?';
+ } else if (strcmp(errors, "ignore") == 0)
+ /* do nothing */;
+ else {
+ PyErr_Format(PyExc_ValueError,
+ "decoding error; "
+ "unknown error handling code: %.400s",
+ errors);
+ goto failed;
+ }
+#ifndef Py_USING_UNICODE
+ case 'u':
+ case 'U':
+ case 'N':
+ if (unicode) {
+ PyErr_SetString(PyExc_ValueError,
+ "Unicode escapes not legal "
+ "when Unicode disabled");
+ goto failed;
+ }
+#endif
+ default:
+ *p++ = '\\';
+ s--;
+ goto non_esc; /* an arbitry number of unescaped
+ UTF-8 bytes may follow. */
+ }
+ }
+ if (p-buf < newlen)
+ _PyBytes_Resize(&v, p - buf);
+ return v;
+ failed:
+ Py_DECREF(v);
+ return NULL;
+}
- new = PyObject_New(PyByteArrayObject, &PyByteArray_Type);
- if (new == NULL)
- return NULL;
+/* -------------------------------------------------------------------- */
+/* object api */
- if (size == 0) {
- new->ob_bytes = NULL;
- alloc = 0;
- }
- else {
- alloc = size + 1;
- new->ob_bytes = PyMem_Malloc(alloc);
- if (new->ob_bytes == NULL) {
- Py_DECREF(new);
- return PyErr_NoMemory();
- }
- if (bytes != NULL)
- memcpy(new->ob_bytes, bytes, size);
- new->ob_bytes[size] = '\0'; /* Trailing null byte */
- }
- Py_SIZE(new) = size;
- new->ob_alloc = alloc;
- new->ob_exports = 0;
+static Py_ssize_t
+string_getsize(register PyObject *op)
+{
+ char *s;
+ Py_ssize_t len;
+ if (PyBytes_AsStringAndSize(op, &s, &len))
+ return -1;
+ return len;
+}
- return (PyObject *)new;
+static /*const*/ char *
+string_getbuffer(register PyObject *op)
+{
+ char *s;
+ Py_ssize_t len;
+ if (PyBytes_AsStringAndSize(op, &s, &len))
+ return NULL;
+ return s;
}
Py_ssize_t
-PyByteArray_Size(PyObject *self)
+PyBytes_Size(register PyObject *op)
{
- assert(self != NULL);
- assert(PyByteArray_Check(self));
-
- return PyByteArray_GET_SIZE(self);
+ if (!PyBytes_Check(op))
+ return string_getsize(op);
+ return Py_SIZE(op);
}
-char *
-PyByteArray_AsString(PyObject *self)
+/*const*/ char *
+PyBytes_AsString(register PyObject *op)
{
- assert(self != NULL);
- assert(PyByteArray_Check(self));
-
- return PyByteArray_AS_STRING(self);
+ if (!PyBytes_Check(op))
+ return string_getbuffer(op);
+ return ((PyBytesObject *)op) -> ob_sval;
}
int
-PyByteArray_Resize(PyObject *self, Py_ssize_t size)
+PyBytes_AsStringAndSize(register PyObject *obj,
+ register char **s,
+ register Py_ssize_t *len)
{
- void *sval;
- Py_ssize_t alloc = ((PyByteArrayObject *)self)->ob_alloc;
+ if (s == NULL) {
+ PyErr_BadInternalCall();
+ return -1;
+ }
+
+ if (!PyBytes_Check(obj)) {
+#ifdef Py_USING_UNICODE
+ if (PyUnicode_Check(obj)) {
+ obj = _PyUnicode_AsDefaultEncodedString(obj, NULL);
+ if (obj == NULL)
+ return -1;
+ }
+ else
+#endif
+ {
+ PyErr_Format(PyExc_TypeError,
+ "expected string or Unicode object, "
+ "%.200s found", Py_TYPE(obj)->tp_name);
+ return -1;
+ }
+ }
+
+ *s = PyBytes_AS_STRING(obj);
+ if (len != NULL)
+ *len = PyBytes_GET_SIZE(obj);
+ else if (strlen(*s) != (size_t)PyBytes_GET_SIZE(obj)) {
+ PyErr_SetString(PyExc_TypeError,
+ "expected string without null bytes");
+ return -1;
+ }
+ return 0;
+}
- assert(self != NULL);
- assert(PyByteArray_Check(self));
- assert(size >= 0);
+/* -------------------------------------------------------------------- */
+/* Methods */
- if (size < alloc / 2) {
- /* Major downsize; resize down to exact size */
- alloc = size + 1;
- }
- else if (size < alloc) {
- /* Within allocated size; quick exit */
- Py_SIZE(self) = size;
- ((PyByteArrayObject *)self)->ob_bytes[size] = '\0'; /* Trailing null */
- return 0;
- }
- else if (size <= alloc * 1.125) {
- /* Moderate upsize; overallocate similar to list_resize() */
- alloc = size + (size >> 3) + (size < 9 ? 3 : 6);
- }
- else {
- /* Major upsize; resize up to exact size */
- alloc = size + 1;
- }
+#include "stringlib/stringdefs.h"
+#include "stringlib/fastsearch.h"
- if (((PyByteArrayObject *)self)->ob_exports > 0) {
- /*
- fprintf(stderr, "%d: %s", ((PyByteArrayObject *)self)->ob_exports,
- ((PyByteArrayObject *)self)->ob_bytes);
- */
- PyErr_SetString(PyExc_BufferError,
- "Existing exports of data: object cannot be re-sized");
- return -1;
- }
+#include "stringlib/count.h"
+#include "stringlib/find.h"
+#include "stringlib/partition.h"
+
+#define _Py_InsertThousandsGrouping _PyBytes_InsertThousandsGrouping
+#include "stringlib/localeutil.h"
- sval = PyMem_Realloc(((PyByteArrayObject *)self)->ob_bytes, alloc);
- if (sval == NULL) {
- PyErr_NoMemory();
- return -1;
- }
- ((PyByteArrayObject *)self)->ob_bytes = sval;
- Py_SIZE(self) = size;
- ((PyByteArrayObject *)self)->ob_alloc = alloc;
- ((PyByteArrayObject *)self)->ob_bytes[size] = '\0'; /* Trailing null byte */
- return 0;
+static int
+string_print(PyBytesObject *op, FILE *fp, int flags)
+{
+ Py_ssize_t i, str_len;
+ char c;
+ int quote;
+
+ /* XXX Ought to check for interrupts when writing long strings */
+ if (! PyBytes_CheckExact(op)) {
+ int ret;
+ /* A str subclass may have its own __str__ method. */
+ op = (PyBytesObject *) PyObject_Str((PyObject *)op);
+ if (op == NULL)
+ return -1;
+ ret = string_print(op, fp, flags);
+ Py_DECREF(op);
+ return ret;
+ }
+ if (flags & Py_PRINT_RAW) {
+ char *data = op->ob_sval;
+ Py_ssize_t size = Py_SIZE(op);
+ Py_BEGIN_ALLOW_THREADS
+ while (size > INT_MAX) {
+ /* Very long strings cannot be written atomically.
+ * But don't write exactly INT_MAX bytes at a time
+ * to avoid memory aligment issues.
+ */
+ const int chunk_size = INT_MAX & ~0x3FFF;
+ fwrite(data, 1, chunk_size, fp);
+ data += chunk_size;
+ size -= chunk_size;
+ }
+#ifdef __VMS
+ if (size) fwrite(data, (int)size, 1, fp);
+#else
+ fwrite(data, 1, (int)size, fp);
+#endif
+ Py_END_ALLOW_THREADS
+ return 0;
+ }
+
+ /* figure out which quote to use; single is preferred */
+ quote = '\'';
+ if (memchr(op->ob_sval, '\'', Py_SIZE(op)) &&
+ !memchr(op->ob_sval, '"', Py_SIZE(op)))
+ quote = '"';
+
+ str_len = Py_SIZE(op);
+ Py_BEGIN_ALLOW_THREADS
+ fputc(quote, fp);
+ for (i = 0; i < str_len; i++) {
+ /* Since strings are immutable and the caller should have a
+ reference, accessing the interal buffer should not be an issue
+ with the GIL released. */
+ c = op->ob_sval[i];
+ if (c == quote || c == '\\')
+ fprintf(fp, "\\%c", c);
+ else if (c == '\t')
+ fprintf(fp, "\\t");
+ else if (c == '\n')
+ fprintf(fp, "\\n");
+ else if (c == '\r')
+ fprintf(fp, "\\r");
+ else if (c < ' ' || c >= 0x7f)
+ fprintf(fp, "\\x%02x", c & 0xff);
+ else
+ fputc(c, fp);
+ }
+ fputc(quote, fp);
+ Py_END_ALLOW_THREADS
+ return 0;
}
PyObject *
-PyByteArray_Concat(PyObject *a, PyObject *b)
-{
- Py_ssize_t size;
- Py_buffer va, vb;
- PyByteArrayObject *result = NULL;
-
- va.len = -1;
- vb.len = -1;
- if (_getbuffer(a, &va) < 0 ||
- _getbuffer(b, &vb) < 0) {
- PyErr_Format(PyExc_TypeError, "can't concat %.100s to %.100s",
- Py_TYPE(a)->tp_name, Py_TYPE(b)->tp_name);
- goto done;
- }
-
- size = va.len + vb.len;
- if (size < 0) {
- return PyErr_NoMemory();
- goto done;
- }
-
- result = (PyByteArrayObject *) PyByteArray_FromStringAndSize(NULL, size);
- if (result != NULL) {
- memcpy(result->ob_bytes, va.buf, va.len);
- memcpy(result->ob_bytes + va.len, vb.buf, vb.len);
- }
-
- done:
- if (va.len != -1)
- PyObject_ReleaseBuffer(a, &va);
- if (vb.len != -1)
- PyObject_ReleaseBuffer(b, &vb);
- return (PyObject *)result;
+PyBytes_Repr(PyObject *obj, int smartquotes)
+{
+ register PyBytesObject* op = (PyBytesObject*) obj;
+ size_t newsize = 2 + 4 * Py_SIZE(op);
+ PyObject *v;
+ if (newsize > PY_SSIZE_T_MAX || newsize / 4 != Py_SIZE(op)) {
+ PyErr_SetString(PyExc_OverflowError,
+ "string is too large to make repr");
+ return NULL;
+ }
+ v = PyBytes_FromStringAndSize((char *)NULL, newsize);
+ if (v == NULL) {
+ return NULL;
+ }
+ else {
+ register Py_ssize_t i;
+ register char c;
+ register char *p;
+ int quote;
+
+ /* figure out which quote to use; single is preferred */
+ quote = '\'';
+ if (smartquotes &&
+ memchr(op->ob_sval, '\'', Py_SIZE(op)) &&
+ !memchr(op->ob_sval, '"', Py_SIZE(op)))
+ quote = '"';
+
+ p = PyBytes_AS_STRING(v);
+ *p++ = quote;
+ for (i = 0; i < Py_SIZE(op); i++) {
+ /* There's at least enough room for a hex escape
+ and a closing quote. */
+ assert(newsize - (p - PyBytes_AS_STRING(v)) >= 5);
+ c = op->ob_sval[i];
+ if (c == quote || c == '\\')
+ *p++ = '\\', *p++ = c;
+ else if (c == '\t')
+ *p++ = '\\', *p++ = 't';
+ else if (c == '\n')
+ *p++ = '\\', *p++ = 'n';
+ else if (c == '\r')
+ *p++ = '\\', *p++ = 'r';
+ else if (c < ' ' || c >= 0x7f) {
+ /* For performance, we don't want to call
+ PyOS_snprintf here (extra layers of
+ function call). */
+ sprintf(p, "\\x%02x", c & 0xff);
+ p += 4;
+ }
+ else
+ *p++ = c;
+ }
+ assert(newsize - (p - PyBytes_AS_STRING(v)) >= 1);
+ *p++ = quote;
+ *p = '\0';
+ _PyBytes_Resize(
+ &v, (p - PyBytes_AS_STRING(v)));
+ return v;
+ }
}
-/* Functions stuffed into the type object */
-
-static Py_ssize_t
-bytes_length(PyByteArrayObject *self)
+static PyObject *
+string_repr(PyObject *op)
{
- return Py_SIZE(self);
+ return PyBytes_Repr(op, 1);
}
static PyObject *
-bytes_iconcat(PyByteArrayObject *self, PyObject *other)
+string_str(PyObject *s)
{
- Py_ssize_t mysize;
- Py_ssize_t size;
- Py_buffer vo;
-
- if (_getbuffer(other, &vo) < 0) {
- PyErr_Format(PyExc_TypeError, "can't concat %.100s to %.100s",
- Py_TYPE(other)->tp_name, Py_TYPE(self)->tp_name);
- return NULL;
- }
+ assert(PyBytes_Check(s));
+ if (PyBytes_CheckExact(s)) {
+ Py_INCREF(s);
+ return s;
+ }
+ else {
+ /* Subtype -- return genuine string with the same value. */
+ PyBytesObject *t = (PyBytesObject *) s;
+ return PyBytes_FromStringAndSize(t->ob_sval, Py_SIZE(t));
+ }
+}
- mysize = Py_SIZE(self);
- size = mysize + vo.len;
- if (size < 0) {
- PyObject_ReleaseBuffer(other, &vo);
- return PyErr_NoMemory();
- }
- if (size < self->ob_alloc) {
- Py_SIZE(self) = size;
- self->ob_bytes[Py_SIZE(self)] = '\0'; /* Trailing null byte */
- }
- else if (PyByteArray_Resize((PyObject *)self, size) < 0) {
- PyObject_ReleaseBuffer(other, &vo);
- return NULL;
- }
- memcpy(self->ob_bytes + mysize, vo.buf, vo.len);
- PyObject_ReleaseBuffer(other, &vo);
- Py_INCREF(self);
- return (PyObject *)self;
+static Py_ssize_t
+string_length(PyBytesObject *a)
+{
+ return Py_SIZE(a);
}
static PyObject *
-bytes_repeat(PyByteArrayObject *self, Py_ssize_t count)
-{
- PyByteArrayObject *result;
- Py_ssize_t mysize;
- Py_ssize_t size;
-
- if (count < 0)
- count = 0;
- mysize = Py_SIZE(self);
- size = mysize * count;
- if (count != 0 && size / count != mysize)
- return PyErr_NoMemory();
- result = (PyByteArrayObject *)PyByteArray_FromStringAndSize(NULL, size);
- if (result != NULL && size != 0) {
- if (mysize == 1)
- memset(result->ob_bytes, self->ob_bytes[0], size);
- else {
- Py_ssize_t i;
- for (i = 0; i < count; i++)
- memcpy(result->ob_bytes + i*mysize, self->ob_bytes, mysize);
- }
- }
- return (PyObject *)result;
+string_concat(register PyBytesObject *a, register PyObject *bb)
+{
+ register Py_ssize_t size;
+ register PyBytesObject *op;
+ if (!PyBytes_Check(bb)) {
+#ifdef Py_USING_UNICODE
+ if (PyUnicode_Check(bb))
+ return PyUnicode_Concat((PyObject *)a, bb);
+#endif
+ if (PyByteArray_Check(bb))
+ return PyByteArray_Concat((PyObject *)a, bb);
+ PyErr_Format(PyExc_TypeError,
+ "cannot concatenate 'str' and '%.200s' objects",
+ Py_TYPE(bb)->tp_name);
+ return NULL;
+ }
+#define b ((PyBytesObject *)bb)
+ /* Optimize cases with empty left or right operand */
+ if ((Py_SIZE(a) == 0 || Py_SIZE(b) == 0) &&
+ PyBytes_CheckExact(a) && PyBytes_CheckExact(b)) {
+ if (Py_SIZE(a) == 0) {
+ Py_INCREF(bb);
+ return bb;
+ }
+ Py_INCREF(a);
+ return (PyObject *)a;
+ }
+ size = Py_SIZE(a) + Py_SIZE(b);
+ if (size < 0) {
+ PyErr_SetString(PyExc_OverflowError,
+ "strings are too large to concat");
+ return NULL;
+ }
+
+ /* Inline PyObject_NewVar */
+ op = (PyBytesObject *)PyObject_MALLOC(sizeof(PyBytesObject) + size);
+ if (op == NULL)
+ return PyErr_NoMemory();
+ PyObject_INIT_VAR(op, &PyBytes_Type, size);
+ op->ob_shash = -1;
+ op->ob_sstate = SSTATE_NOT_INTERNED;
+ Py_MEMCPY(op->ob_sval, a->ob_sval, Py_SIZE(a));
+ Py_MEMCPY(op->ob_sval + Py_SIZE(a), b->ob_sval, Py_SIZE(b));
+ op->ob_sval[size] = '\0';
+ return (PyObject *) op;
+#undef b
}
static PyObject *
-bytes_irepeat(PyByteArrayObject *self, Py_ssize_t count)
-{
- Py_ssize_t mysize;
- Py_ssize_t size;
-
- if (count < 0)
- count = 0;
- mysize = Py_SIZE(self);
- size = mysize * count;
- if (count != 0 && size / count != mysize)
- return PyErr_NoMemory();
- if (size < self->ob_alloc) {
- Py_SIZE(self) = size;
- self->ob_bytes[Py_SIZE(self)] = '\0'; /* Trailing null byte */
- }
- else if (PyByteArray_Resize((PyObject *)self, size) < 0)
- return NULL;
+string_repeat(register PyBytesObject *a, register Py_ssize_t n)
+{
+ register Py_ssize_t i;
+ register Py_ssize_t j;
+ register Py_ssize_t size;
+ register PyBytesObject *op;
+ size_t nbytes;
+ if (n < 0)
+ n = 0;
+ /* watch out for overflows: the size can overflow int,
+ * and the # of bytes needed can overflow size_t
+ */
+ size = Py_SIZE(a) * n;
+ if (n && size / n != Py_SIZE(a)) {
+ PyErr_SetString(PyExc_OverflowError,
+ "repeated string is too long");
+ return NULL;
+ }
+ if (size == Py_SIZE(a) && PyBytes_CheckExact(a)) {
+ Py_INCREF(a);
+ return (PyObject *)a;
+ }
+ nbytes = (size_t)size;
+ if (nbytes + sizeof(PyBytesObject) <= nbytes) {
+ PyErr_SetString(PyExc_OverflowError,
+ "repeated string is too long");
+ return NULL;
+ }
+ op = (PyBytesObject *)
+ PyObject_MALLOC(sizeof(PyBytesObject) + nbytes);
+ if (op == NULL)
+ return PyErr_NoMemory();
+ PyObject_INIT_VAR(op, &PyBytes_Type, size);
+ op->ob_shash = -1;
+ op->ob_sstate = SSTATE_NOT_INTERNED;
+ op->ob_sval[size] = '\0';
+ if (Py_SIZE(a) == 1 && n > 0) {
+ memset(op->ob_sval, a->ob_sval[0] , n);
+ return (PyObject *) op;
+ }
+ i = 0;
+ if (i < size) {
+ Py_MEMCPY(op->ob_sval, a->ob_sval, Py_SIZE(a));
+ i = Py_SIZE(a);
+ }
+ while (i < size) {
+ j = (i <= size-i) ? i : size-i;
+ Py_MEMCPY(op->ob_sval+i, op->ob_sval, j);
+ i += j;
+ }
+ return (PyObject *) op;
+}
- if (mysize == 1)
- memset(self->ob_bytes, self->ob_bytes[0], size);
- else {
- Py_ssize_t i;
- for (i = 1; i < count; i++)
- memcpy(self->ob_bytes + i*mysize, self->ob_bytes, mysize);
- }
+/* String slice a[i:j] consists of characters a[i] ... a[j-1] */
- Py_INCREF(self);
- return (PyObject *)self;
+static PyObject *
+string_slice(register PyBytesObject *a, register Py_ssize_t i,
+ register Py_ssize_t j)
+ /* j -- may be negative! */
+{
+ if (i < 0)
+ i = 0;
+ if (j < 0)
+ j = 0; /* Avoid signed/unsigned bug in next line */
+ if (j > Py_SIZE(a))
+ j = Py_SIZE(a);
+ if (i == 0 && j == Py_SIZE(a) && PyBytes_CheckExact(a)) {
+ /* It's the same as a */
+ Py_INCREF(a);
+ return (PyObject *)a;
+ }
+ if (j < i)
+ j = i;
+ return PyBytes_FromStringAndSize(a->ob_sval + i, j-i);
}
-static PyObject *
-bytes_getitem(PyByteArrayObject *self, Py_ssize_t i)
+static int
+string_contains(PyObject *str_obj, PyObject *sub_obj)
{
- if (i < 0)
- i += Py_SIZE(self);
- if (i < 0 || i >= Py_SIZE(self)) {
- PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
- return NULL;
- }
- return PyInt_FromLong((unsigned char)(self->ob_bytes[i]));
+ if (!PyBytes_CheckExact(sub_obj)) {
+#ifdef Py_USING_UNICODE
+ if (PyUnicode_Check(sub_obj))
+ return PyUnicode_Contains(str_obj, sub_obj);
+#endif
+ if (!PyBytes_Check(sub_obj)) {
+ PyErr_Format(PyExc_TypeError,
+ "'in <string>' requires string as left operand, "
+ "not %.200s", Py_TYPE(sub_obj)->tp_name);
+ return -1;
+ }
+ }
+
+ return stringlib_contains_obj(str_obj, sub_obj);
}
static PyObject *
-bytes_subscript(PyByteArrayObject *self, PyObject *item)
+string_item(PyBytesObject *a, register Py_ssize_t i)
{
- if (PyIndex_Check(item)) {
- Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
-
- if (i == -1 && PyErr_Occurred())
- return NULL;
-
- if (i < 0)
- i += PyByteArray_GET_SIZE(self);
-
- if (i < 0 || i >= Py_SIZE(self)) {
- PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
- return NULL;
- }
- return PyInt_FromLong((unsigned char)(self->ob_bytes[i]));
- }
- else if (PySlice_Check(item)) {
- Py_ssize_t start, stop, step, slicelength, cur, i;
- if (PySlice_GetIndicesEx((PySliceObject *)item,
- PyByteArray_GET_SIZE(self),
- &start, &stop, &step, &slicelength) < 0) {
- return NULL;
- }
+ char pchar;
+ PyObject *v;
+ if (i < 0 || i >= Py_SIZE(a)) {
+ PyErr_SetString(PyExc_IndexError, "string index out of range");
+ return NULL;
+ }
+ pchar = a->ob_sval[i];
+ v = (PyObject *)characters[pchar & UCHAR_MAX];
+ if (v == NULL)
+ v = PyBytes_FromStringAndSize(&pchar, 1);
+ else {
+#ifdef COUNT_ALLOCS
+ one_strings++;
+#endif
+ Py_INCREF(v);
+ }
+ return v;
+}
- if (slicelength <= 0)
- return PyByteArray_FromStringAndSize("", 0);
- else if (step == 1) {
- return PyByteArray_FromStringAndSize(self->ob_bytes + start,
- slicelength);
- }
- else {
- char *source_buf = PyByteArray_AS_STRING(self);
- char *result_buf = (char *)PyMem_Malloc(slicelength);
- PyObject *result;
+static PyObject*
+string_richcompare(PyBytesObject *a, PyBytesObject *b, int op)
+{
+ int c;
+ Py_ssize_t len_a, len_b;
+ Py_ssize_t min_len;
+ PyObject *result;
+
+ /* Make sure both arguments are strings. */
+ if (!(PyBytes_Check(a) && PyBytes_Check(b))) {
+ result = Py_NotImplemented;
+ goto out;
+ }
+ if (a == b) {
+ switch (op) {
+ case Py_EQ:case Py_LE:case Py_GE:
+ result = Py_True;
+ goto out;
+ case Py_NE:case Py_LT:case Py_GT:
+ result = Py_False;
+ goto out;
+ }
+ }
+ if (op == Py_EQ) {
+ /* Supporting Py_NE here as well does not save
+ much time, since Py_NE is rarely used. */
+ if (Py_SIZE(a) == Py_SIZE(b)
+ && (a->ob_sval[0] == b->ob_sval[0]
+ && memcmp(a->ob_sval, b->ob_sval, Py_SIZE(a)) == 0)) {
+ result = Py_True;
+ } else {
+ result = Py_False;
+ }
+ goto out;
+ }
+ len_a = Py_SIZE(a); len_b = Py_SIZE(b);
+ min_len = (len_a < len_b) ? len_a : len_b;
+ if (min_len > 0) {
+ c = Py_CHARMASK(*a->ob_sval) - Py_CHARMASK(*b->ob_sval);
+ if (c==0)
+ c = memcmp(a->ob_sval, b->ob_sval, min_len);
+ } else
+ c = 0;
+ if (c == 0)
+ c = (len_a < len_b) ? -1 : (len_a > len_b) ? 1 : 0;
+ switch (op) {
+ case Py_LT: c = c < 0; break;
+ case Py_LE: c = c <= 0; break;
+ case Py_EQ: assert(0); break; /* unreachable */
+ case Py_NE: c = c != 0; break;
+ case Py_GT: c = c > 0; break;
+ case Py_GE: c = c >= 0; break;
+ default:
+ result = Py_NotImplemented;
+ goto out;
+ }
+ result = c ? Py_True : Py_False;
+ out:
+ Py_INCREF(result);
+ return result;
+}
- if (result_buf == NULL)
- return PyErr_NoMemory();
+int
+_PyBytes_Eq(PyObject *o1, PyObject *o2)
+{
+ PyBytesObject *a = (PyBytesObject*) o1;
+ PyBytesObject *b = (PyBytesObject*) o2;
+ return Py_SIZE(a) == Py_SIZE(b)
+ && *a->ob_sval == *b->ob_sval
+ && memcmp(a->ob_sval, b->ob_sval, Py_SIZE(a)) == 0;
+}
- for (cur = start, i = 0; i < slicelength;
- cur += step, i++) {
- result_buf[i] = source_buf[cur];
- }
- result = PyByteArray_FromStringAndSize(result_buf, slicelength);
- PyMem_Free(result_buf);
- return result;
- }
- }
- else {
- PyErr_SetString(PyExc_TypeError, "bytearray indices must be integers");
- return NULL;
- }
+static long
+string_hash(PyBytesObject *a)
+{
+ register Py_ssize_t len;
+ register unsigned char *p;
+ register long x;
+
+ if (a->ob_shash != -1)
+ return a->ob_shash;
+ len = Py_SIZE(a);
+ p = (unsigned char *) a->ob_sval;
+ x = *p << 7;
+ while (--len >= 0)
+ x = (1000003*x) ^ *p++;
+ x ^= Py_SIZE(a);
+ if (x == -1)
+ x = -2;
+ a->ob_shash = x;
+ return x;
}
-static int
-bytes_setslice(PyByteArrayObject *self, Py_ssize_t lo, Py_ssize_t hi,
- PyObject *values)
-{
- Py_ssize_t avail, needed;
- void *bytes;
- Py_buffer vbytes;
- int res = 0;
-
- vbytes.len = -1;
- if (values == (PyObject *)self) {
- /* Make a copy and call this function recursively */
- int err;
- values = PyByteArray_FromObject(values);
- if (values == NULL)
- return -1;
- err = bytes_setslice(self, lo, hi, values);
- Py_DECREF(values);
- return err;
- }
- if (values == NULL) {
- /* del b[lo:hi] */
- bytes = NULL;
- needed = 0;
- }
- else {
- if (_getbuffer(values, &vbytes) < 0) {
- PyErr_Format(PyExc_TypeError,
- "can't set bytes slice from %.100s",
- Py_TYPE(values)->tp_name);
- return -1;
- }
- needed = vbytes.len;
- bytes = vbytes.buf;
- }
+static PyObject*
+string_subscript(PyBytesObject* self, PyObject* item)
+{
+ if (PyIndex_Check(item)) {
+ Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+ if (i == -1 && PyErr_Occurred())
+ return NULL;
+ if (i < 0)
+ i += PyBytes_GET_SIZE(self);
+ return string_item(self, i);
+ }
+ else if (PySlice_Check(item)) {
+ Py_ssize_t start, stop, step, slicelength, cur, i;
+ char* source_buf;
+ char* result_buf;
+ PyObject* result;
+
+ if (PySlice_GetIndicesEx((PySliceObject*)item,
+ PyBytes_GET_SIZE(self),
+ &start, &stop, &step, &slicelength) < 0) {
+ return NULL;
+ }
+
+ if (slicelength <= 0) {
+ return PyBytes_FromStringAndSize("", 0);
+ }
+ else if (start == 0 && step == 1 &&
+ slicelength == PyBytes_GET_SIZE(self) &&
+ PyBytes_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyObject *)self;
+ }
+ else if (step == 1) {
+ return PyBytes_FromStringAndSize(
+ PyBytes_AS_STRING(self) + start,
+ slicelength);
+ }
+ else {
+ source_buf = PyBytes_AsString((PyObject*)self);
+ result_buf = (char *)PyMem_Malloc(slicelength);
+ if (result_buf == NULL)
+ return PyErr_NoMemory();
+
+ for (cur = start, i = 0; i < slicelength;
+ cur += step, i++) {
+ result_buf[i] = source_buf[cur];
+ }
+
+ result = PyBytes_FromStringAndSize(result_buf,
+ slicelength);
+ PyMem_Free(result_buf);
+ return result;
+ }
+ }
+ else {
+ PyErr_Format(PyExc_TypeError,
+ "string indices must be integers, not %.200s",
+ Py_TYPE(item)->tp_name);
+ return NULL;
+ }
+}
- if (lo < 0)
- lo = 0;
- if (hi < lo)
- hi = lo;
- if (hi > Py_SIZE(self))
- hi = Py_SIZE(self);
-
- avail = hi - lo;
- if (avail < 0)
- lo = hi = avail = 0;
-
- if (avail != needed) {
- if (avail > needed) {
- /*
- 0 lo hi old_size
- | |<----avail----->|<-----tomove------>|
- | |<-needed->|<-----tomove------>|
- 0 lo new_hi new_size
- */
- memmove(self->ob_bytes + lo + needed, self->ob_bytes + hi,
- Py_SIZE(self) - hi);
- }
- /* XXX(nnorwitz): need to verify this can't overflow! */
- if (PyByteArray_Resize((PyObject *)self,
- Py_SIZE(self) + needed - avail) < 0) {
- res = -1;
- goto finish;
- }
- if (avail < needed) {
- /*
- 0 lo hi old_size
- | |<-avail->|<-----tomove------>|
- | |<----needed---->|<-----tomove------>|
- 0 lo new_hi new_size
- */
- memmove(self->ob_bytes + lo + needed, self->ob_bytes + hi,
- Py_SIZE(self) - lo - needed);
- }
- }
+static Py_ssize_t
+string_buffer_getreadbuf(PyBytesObject *self, Py_ssize_t index, const void **ptr)
+{
+ if ( index != 0 ) {
+ PyErr_SetString(PyExc_SystemError,
+ "accessing non-existent string segment");
+ return -1;
+ }
+ *ptr = (void *)self->ob_sval;
+ return Py_SIZE(self);
+}
- if (needed > 0)
- memcpy(self->ob_bytes + lo, bytes, needed);
+static Py_ssize_t
+string_buffer_getwritebuf(PyBytesObject *self, Py_ssize_t index, const void **ptr)
+{
+ PyErr_SetString(PyExc_TypeError,
+ "Cannot use string as modifiable buffer");
+ return -1;
+}
+static Py_ssize_t
+string_buffer_getsegcount(PyBytesObject *self, Py_ssize_t *lenp)
+{
+ if ( lenp )
+ *lenp = Py_SIZE(self);
+ return 1;
+}
- finish:
- if (vbytes.len != -1)
- PyObject_ReleaseBuffer(values, &vbytes);
- return res;
+static Py_ssize_t
+string_buffer_getcharbuf(PyBytesObject *self, Py_ssize_t index, const char **ptr)
+{
+ if ( index != 0 ) {
+ PyErr_SetString(PyExc_SystemError,
+ "accessing non-existent string segment");
+ return -1;
+ }
+ *ptr = self->ob_sval;
+ return Py_SIZE(self);
}
static int
-bytes_setitem(PyByteArrayObject *self, Py_ssize_t i, PyObject *value)
+string_buffer_getbuffer(PyBytesObject *self, Py_buffer *view, int flags)
{
- int ival;
+ return PyBuffer_FillInfo(view, (void *)self->ob_sval, Py_SIZE(self),
+ 0, flags);
+}
- if (i < 0)
- i += Py_SIZE(self);
+static PySequenceMethods string_as_sequence = {
+ (lenfunc)string_length, /*sq_length*/
+ (binaryfunc)string_concat, /*sq_concat*/
+ (ssizeargfunc)string_repeat, /*sq_repeat*/
+ (ssizeargfunc)string_item, /*sq_item*/
+ (ssizessizeargfunc)string_slice, /*sq_slice*/
+ 0, /*sq_ass_item*/
+ 0, /*sq_ass_slice*/
+ (objobjproc)string_contains /*sq_contains*/
+};
- if (i < 0 || i >= Py_SIZE(self)) {
- PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
- return -1;
- }
+static PyMappingMethods string_as_mapping = {
+ (lenfunc)string_length,
+ (binaryfunc)string_subscript,
+ 0,
+};
- if (value == NULL)
- return bytes_setslice(self, i, i+1, NULL);
+static PyBufferProcs string_as_buffer = {
+ (readbufferproc)string_buffer_getreadbuf,
+ (writebufferproc)string_buffer_getwritebuf,
+ (segcountproc)string_buffer_getsegcount,
+ (charbufferproc)string_buffer_getcharbuf,
+ (getbufferproc)string_buffer_getbuffer,
+ 0, /* XXX */
+};
- if (!_getbytevalue(value, &ival))
- return -1;
- self->ob_bytes[i] = ival;
- return 0;
-}
+
+#define LEFTSTRIP 0
+#define RIGHTSTRIP 1
+#define BOTHSTRIP 2
-static int
-bytes_ass_subscript(PyByteArrayObject *self, PyObject *item, PyObject *values)
-{
- Py_ssize_t start, stop, step, slicelen, needed;
- char *bytes;
+/* Arrays indexed by above */
+static const char *stripformat[] = {"|O:lstrip", "|O:rstrip", "|O:strip"};
- if (PyIndex_Check(item)) {
- Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+#define STRIPNAME(i) (stripformat[i]+3)
- if (i == -1 && PyErr_Occurred())
- return -1;
- if (i < 0)
- i += PyByteArray_GET_SIZE(self);
+/* Don't call if length < 2 */
+#define Py_STRING_MATCH(target, offset, pattern, length) \
+ (target[offset] == pattern[0] && \
+ target[offset+length-1] == pattern[length-1] && \
+ !memcmp(target+offset+1, pattern+1, length-2) )
- if (i < 0 || i >= Py_SIZE(self)) {
- PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
- return -1;
- }
- if (values == NULL) {
- /* Fall through to slice assignment */
- start = i;
- stop = i + 1;
- step = 1;
- slicelen = 1;
- }
- else {
- Py_ssize_t ival = PyNumber_AsSsize_t(values, PyExc_ValueError);
- if (ival == -1 && PyErr_Occurred()) {
- int int_value;
- /* Also accept str of size 1 in 2.x */
- PyErr_Clear();
- if (!_getbytevalue(values, &int_value))
- return -1;
- ival = (int) int_value;
- } else if (ival < 0 || ival >= 256) {
- PyErr_SetString(PyExc_ValueError,
- "byte must be in range(0, 256)");
- return -1;
- }
- self->ob_bytes[i] = (char)ival;
- return 0;
- }
- }
- else if (PySlice_Check(item)) {
- if (PySlice_GetIndicesEx((PySliceObject *)item,
- PyByteArray_GET_SIZE(self),
- &start, &stop, &step, &slicelen) < 0) {
- return -1;
- }
- }
- else {
- PyErr_SetString(PyExc_TypeError, "bytearray indices must be integer");
- return -1;
- }
-
- if (values == NULL) {
- bytes = NULL;
- needed = 0;
- }
- else if (values == (PyObject *)self || !PyByteArray_Check(values)) {
- /* Make a copy an call this function recursively */
- int err;
- values = PyByteArray_FromObject(values);
- if (values == NULL)
- return -1;
- err = bytes_ass_subscript(self, item, values);
- Py_DECREF(values);
- return err;
- }
- else {
- assert(PyByteArray_Check(values));
- bytes = ((PyByteArrayObject *)values)->ob_bytes;
- needed = Py_SIZE(values);
- }
- /* Make sure b[5:2] = ... inserts before 5, not before 2. */
- if ((step < 0 && start < stop) ||
- (step > 0 && start > stop))
- stop = start;
- if (step == 1) {
- if (slicelen != needed) {
- if (slicelen > needed) {
- /*
- 0 start stop old_size
- | |<---slicelen--->|<-----tomove------>|
- | |<-needed->|<-----tomove------>|
- 0 lo new_hi new_size
- */
- memmove(self->ob_bytes + start + needed, self->ob_bytes + stop,
- Py_SIZE(self) - stop);
- }
- if (PyByteArray_Resize((PyObject *)self,
- Py_SIZE(self) + needed - slicelen) < 0)
- return -1;
- if (slicelen < needed) {
- /*
- 0 lo hi old_size
- | |<-avail->|<-----tomove------>|
- | |<----needed---->|<-----tomove------>|
- 0 lo new_hi new_size
- */
- memmove(self->ob_bytes + start + needed, self->ob_bytes + stop,
- Py_SIZE(self) - start - needed);
- }
- }
+/* Overallocate the initial list to reduce the number of reallocs for small
+ split sizes. Eg, "A A A A A A A A A A".split() (10 elements) has three
+ resizes, to sizes 4, 8, then 16. Most observed string splits are for human
+ text (roughly 11 words per line) and field delimited data (usually 1-10
+ fields). For large strings the split algorithms are bandwidth limited
+ so increasing the preallocation likely will not improve things.*/
- if (needed > 0)
- memcpy(self->ob_bytes + start, bytes, needed);
+#define MAX_PREALLOC 12
- return 0;
- }
- else {
- if (needed == 0) {
- /* Delete slice */
- Py_ssize_t cur, i;
-
- if (step < 0) {
- stop = start + 1;
- start = stop + step * (slicelen - 1) - 1;
- step = -step;
- }
- for (cur = start, i = 0;
- i < slicelen; cur += step, i++) {
- Py_ssize_t lim = step - 1;
+/* 5 splits gives 6 elements */
+#define PREALLOC_SIZE(maxsplit) \
+ (maxsplit >= MAX_PREALLOC ? MAX_PREALLOC : maxsplit+1)
+
+#define SPLIT_APPEND(data, left, right) \
+ str = PyBytes_FromStringAndSize((data) + (left), \
+ (right) - (left)); \
+ if (str == NULL) \
+ goto onError; \
+ if (PyList_Append(list, str)) { \
+ Py_DECREF(str); \
+ goto onError; \
+ } \
+ else \
+ Py_DECREF(str);
+
+#define SPLIT_ADD(data, left, right) { \
+ str = PyBytes_FromStringAndSize((data) + (left), \
+ (right) - (left)); \
+ if (str == NULL) \
+ goto onError; \
+ if (count < MAX_PREALLOC) { \
+ PyList_SET_ITEM(list, count, str); \
+ } else { \
+ if (PyList_Append(list, str)) { \
+ Py_DECREF(str); \
+ goto onError; \
+ } \
+ else \
+ Py_DECREF(str); \
+ } \
+ count++; }
- if (cur + step >= PyByteArray_GET_SIZE(self))
- lim = PyByteArray_GET_SIZE(self) - cur - 1;
+/* Always force the list to the expected size. */
+#define FIX_PREALLOC_SIZE(list) Py_SIZE(list) = count
- memmove(self->ob_bytes + cur - i,
- self->ob_bytes + cur + 1, lim);
- }
- /* Move the tail of the bytes, in one chunk */
- cur = start + slicelen*step;
- if (cur < PyByteArray_GET_SIZE(self)) {
- memmove(self->ob_bytes + cur - slicelen,
- self->ob_bytes + cur,
- PyByteArray_GET_SIZE(self) - cur);
- }
- if (PyByteArray_Resize((PyObject *)self,
- PyByteArray_GET_SIZE(self) - slicelen) < 0)
- return -1;
+#define SKIP_SPACE(s, i, len) { while (i<len && isspace(Py_CHARMASK(s[i]))) i++; }
+#define SKIP_NONSPACE(s, i, len) { while (i<len && !isspace(Py_CHARMASK(s[i]))) i++; }
+#define RSKIP_SPACE(s, i) { while (i>=0 && isspace(Py_CHARMASK(s[i]))) i--; }
+#define RSKIP_NONSPACE(s, i) { while (i>=0 && !isspace(Py_CHARMASK(s[i]))) i--; }
- return 0;
- }
- else {
- /* Assign slice */
- Py_ssize_t cur, i;
-
- if (needed != slicelen) {
- PyErr_Format(PyExc_ValueError,
- "attempt to assign bytes of size %zd "
- "to extended slice of size %zd",
- needed, slicelen);
- return -1;
- }
- for (cur = start, i = 0; i < slicelen; cur += step, i++)
- self->ob_bytes[cur] = bytes[i];
- return 0;
- }
- }
+Py_LOCAL_INLINE(PyObject *)
+split_whitespace(PyBytesObject *self, Py_ssize_t len, Py_ssize_t maxsplit)
+{
+ const char *s = PyBytes_AS_STRING(self);
+ Py_ssize_t i, j, count=0;
+ PyObject *str;
+ PyObject *list = PyList_New(PREALLOC_SIZE(maxsplit));
+
+ if (list == NULL)
+ return NULL;
+
+ i = j = 0;
+
+ while (maxsplit-- > 0) {
+ SKIP_SPACE(s, i, len);
+ if (i==len) break;
+ j = i; i++;
+ SKIP_NONSPACE(s, i, len);
+ if (j == 0 && i == len && PyBytes_CheckExact(self)) {
+ /* No whitespace in self, so just use it as list[0] */
+ Py_INCREF(self);
+ PyList_SET_ITEM(list, 0, (PyObject *)self);
+ count++;
+ break;
+ }
+ SPLIT_ADD(s, j, i);
+ }
+
+ if (i < len) {
+ /* Only occurs when maxsplit was reached */
+ /* Skip any remaining whitespace and copy to end of string */
+ SKIP_SPACE(s, i, len);
+ if (i != len)
+ SPLIT_ADD(s, i, len);
+ }
+ FIX_PREALLOC_SIZE(list);
+ return list;
+ onError:
+ Py_DECREF(list);
+ return NULL;
}
-static int
-bytes_init(PyByteArrayObject *self, PyObject *args, PyObject *kwds)
-{
- static char *kwlist[] = {"source", "encoding", "errors", 0};
- PyObject *arg = NULL;
- const char *encoding = NULL;
- const char *errors = NULL;
- Py_ssize_t count;
- PyObject *it;
- PyObject *(*iternext)(PyObject *);
-
- if (Py_SIZE(self) != 0) {
- /* Empty previous contents (yes, do this first of all!) */
- if (PyByteArray_Resize((PyObject *)self, 0) < 0)
- return -1;
- }
-
- /* Parse arguments */
- if (!PyArg_ParseTupleAndKeywords(args, kwds, "|Oss:bytes", kwlist,
- &arg, &encoding, &errors))
- return -1;
-
- /* Make a quick exit if no first argument */
- if (arg == NULL) {
- if (encoding != NULL || errors != NULL) {
- PyErr_SetString(PyExc_TypeError,
- "encoding or errors without sequence argument");
- return -1;
- }
- return 0;
- }
+Py_LOCAL_INLINE(PyObject *)
+split_char(PyBytesObject *self, Py_ssize_t len, char ch, Py_ssize_t maxcount)
+{
+ const char *s = PyBytes_AS_STRING(self);
+ register Py_ssize_t i, j, count=0;
+ PyObject *str;
+ PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+
+ if (list == NULL)
+ return NULL;
+
+ i = j = 0;
+ while ((j < len) && (maxcount-- > 0)) {
+ for(; j<len; j++) {
+ /* I found that using memchr makes no difference */
+ if (s[j] == ch) {
+ SPLIT_ADD(s, i, j);
+ i = j = j + 1;
+ break;
+ }
+ }
+ }
+ if (i == 0 && count == 0 && PyBytes_CheckExact(self)) {
+ /* ch not in self, so just use self as list[0] */
+ Py_INCREF(self);
+ PyList_SET_ITEM(list, 0, (PyObject *)self);
+ count++;
+ }
+ else if (i <= len) {
+ SPLIT_ADD(s, i, len);
+ }
+ FIX_PREALLOC_SIZE(list);
+ return list;
- if (PyBytes_Check(arg)) {
- PyObject *new, *encoded;
- if (encoding != NULL) {
- encoded = PyCodec_Encode(arg, encoding, errors);
- if (encoded == NULL)
- return -1;
- assert(PyBytes_Check(encoded));
- }
- else {
- encoded = arg;
- Py_INCREF(arg);
- }
- new = bytes_iconcat(self, arg);
- Py_DECREF(encoded);
- if (new == NULL)
- return -1;
- Py_DECREF(new);
- return 0;
- }
+ onError:
+ Py_DECREF(list);
+ return NULL;
+}
- if (PyUnicode_Check(arg)) {
- /* Encode via the codec registry */
- PyObject *encoded, *new;
- if (encoding == NULL) {
- PyErr_SetString(PyExc_TypeError,
- "unicode argument without an encoding");
- return -1;
- }
- encoded = PyCodec_Encode(arg, encoding, errors);
- if (encoded == NULL)
- return -1;
- assert(PyBytes_Check(encoded));
- new = bytes_iconcat(self, encoded);
- Py_DECREF(encoded);
- if (new == NULL)
- return -1;
- Py_DECREF(new);
- return 0;
- }
+PyDoc_STRVAR(split__doc__,
+"S.split([sep [,maxsplit]]) -> list of strings\n\
+\n\
+Return a list of the words in the string S, using sep as the\n\
+delimiter string. If maxsplit is given, at most maxsplit\n\
+splits are done. If sep is not specified or is None, any\n\
+whitespace string is a separator and empty strings are removed\n\
+from the result.");
- /* If it's not unicode, there can't be encoding or errors */
- if (encoding != NULL || errors != NULL) {
- PyErr_SetString(PyExc_TypeError,
- "encoding or errors without a string argument");
- return -1;
- }
+static PyObject *
+string_split(PyBytesObject *self, PyObject *args)
+{
+ Py_ssize_t len = PyBytes_GET_SIZE(self), n, i, j;
+ Py_ssize_t maxsplit = -1, count=0;
+ const char *s = PyBytes_AS_STRING(self), *sub;
+ PyObject *list, *str, *subobj = Py_None;
+#ifdef USE_FAST
+ Py_ssize_t pos;
+#endif
- /* Is it an int? */
- count = PyNumber_AsSsize_t(arg, PyExc_ValueError);
- if (count == -1 && PyErr_Occurred())
- PyErr_Clear();
- else {
- if (count < 0) {
- PyErr_SetString(PyExc_ValueError, "negative count");
- return -1;
- }
- if (count > 0) {
- if (PyByteArray_Resize((PyObject *)self, count))
- return -1;
- memset(self->ob_bytes, 0, count);
- }
- return 0;
- }
+ if (!PyArg_ParseTuple(args, "|On:split", &subobj, &maxsplit))
+ return NULL;
+ if (maxsplit < 0)
+ maxsplit = PY_SSIZE_T_MAX;
+ if (subobj == Py_None)
+ return split_whitespace(self, len, maxsplit);
+ if (PyBytes_Check(subobj)) {
+ sub = PyBytes_AS_STRING(subobj);
+ n = PyBytes_GET_SIZE(subobj);
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(subobj))
+ return PyUnicode_Split((PyObject *)self, subobj, maxsplit);
+#endif
+ else if (PyObject_AsCharBuffer(subobj, &sub, &n))
+ return NULL;
- /* Use the buffer API */
- if (PyObject_CheckBuffer(arg)) {
- Py_ssize_t size;
- Py_buffer view;
- if (PyObject_GetBuffer(arg, &view, PyBUF_FULL_RO) < 0)
- return -1;
- size = view.len;
- if (PyByteArray_Resize((PyObject *)self, size) < 0) goto fail;
- if (PyBuffer_ToContiguous(self->ob_bytes, &view, size, 'C') < 0)
- goto fail;
- PyObject_ReleaseBuffer(arg, &view);
- return 0;
- fail:
- PyObject_ReleaseBuffer(arg, &view);
- return -1;
- }
+ if (n == 0) {
+ PyErr_SetString(PyExc_ValueError, "empty separator");
+ return NULL;
+ }
+ else if (n == 1)
+ return split_char(self, len, sub[0], maxsplit);
- /* XXX Optimize this if the arguments is a list, tuple */
-
- /* Get the iterator */
- it = PyObject_GetIter(arg);
- if (it == NULL)
- return -1;
- iternext = *Py_TYPE(it)->tp_iternext;
-
- /* Run the iterator to exhaustion */
- for (;;) {
- PyObject *item;
- Py_ssize_t value;
-
- /* Get the next item */
- item = iternext(it);
- if (item == NULL) {
- if (PyErr_Occurred()) {
- if (!PyErr_ExceptionMatches(PyExc_StopIteration))
- goto error;
- PyErr_Clear();
- }
- break;
- }
+ list = PyList_New(PREALLOC_SIZE(maxsplit));
+ if (list == NULL)
+ return NULL;
- /* Interpret it as an int (__index__) */
- value = PyNumber_AsSsize_t(item, PyExc_ValueError);
- Py_DECREF(item);
- if (value == -1 && PyErr_Occurred())
- goto error;
-
- /* Range check */
- if (value < 0 || value >= 256) {
- PyErr_SetString(PyExc_ValueError,
- "bytes must be in range(0, 256)");
- goto error;
- }
+#ifdef USE_FAST
+ i = j = 0;
+ while (maxsplit-- > 0) {
+ pos = fastsearch(s+i, len-i, sub, n, FAST_SEARCH);
+ if (pos < 0)
+ break;
+ j = i+pos;
+ SPLIT_ADD(s, i, j);
+ i = j + n;
+ }
+#else
+ i = j = 0;
+ while ((j+n <= len) && (maxsplit-- > 0)) {
+ for (; j+n <= len; j++) {
+ if (Py_STRING_MATCH(s, j, sub, n)) {
+ SPLIT_ADD(s, i, j);
+ i = j = j + n;
+ break;
+ }
+ }
+ }
+#endif
+ SPLIT_ADD(s, i, len);
+ FIX_PREALLOC_SIZE(list);
+ return list;
- /* Append the byte */
- if (Py_SIZE(self) < self->ob_alloc)
- Py_SIZE(self)++;
- else if (PyByteArray_Resize((PyObject *)self, Py_SIZE(self)+1) < 0)
- goto error;
- self->ob_bytes[Py_SIZE(self)-1] = value;
- }
+ onError:
+ Py_DECREF(list);
+ return NULL;
+}
- /* Clean up and return success */
- Py_DECREF(it);
- return 0;
+PyDoc_STRVAR(partition__doc__,
+"S.partition(sep) -> (head, sep, tail)\n\
+\n\
+Searches for the separator sep in S, and returns the part before it,\n\
+the separator itself, and the part after it. If the separator is not\n\
+found, returns S and two empty strings.");
- error:
- /* Error handling when it != NULL */
- Py_DECREF(it);
- return -1;
+static PyObject *
+string_partition(PyBytesObject *self, PyObject *sep_obj)
+{
+ const char *sep;
+ Py_ssize_t sep_len;
+
+ if (PyBytes_Check(sep_obj)) {
+ sep = PyBytes_AS_STRING(sep_obj);
+ sep_len = PyBytes_GET_SIZE(sep_obj);
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(sep_obj))
+ return PyUnicode_Partition((PyObject *) self, sep_obj);
+#endif
+ else if (PyObject_AsCharBuffer(sep_obj, &sep, &sep_len))
+ return NULL;
+
+ return stringlib_partition(
+ (PyObject*) self,
+ PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
+ sep_obj, sep, sep_len
+ );
}
-/* Mostly copied from string_repr, but without the
- "smart quote" functionality. */
+PyDoc_STRVAR(rpartition__doc__,
+"S.rpartition(sep) -> (tail, sep, head)\n\
+\n\
+Searches for the separator sep in S, starting at the end of S, and returns\n\
+the part before it, the separator itself, and the part after it. If the\n\
+separator is not found, returns two empty strings and S.");
+
static PyObject *
-bytes_repr(PyByteArrayObject *self)
-{
- static const char *hexdigits = "0123456789abcdef";
- const char *quote_prefix = "bytearray(b";
- const char *quote_postfix = ")";
- Py_ssize_t length = Py_SIZE(self);
- /* 14 == strlen(quote_prefix) + 2 + strlen(quote_postfix) */
- size_t newsize = 14 + 4 * length;
- PyObject *v;
- if (newsize > PY_SSIZE_T_MAX || newsize / 4 - 3 != length) {
- PyErr_SetString(PyExc_OverflowError,
- "bytearray object is too large to make repr");
- return NULL;
- }
- v = PyUnicode_FromUnicode(NULL, newsize);
- if (v == NULL) {
- return NULL;
- }
- else {
- register Py_ssize_t i;
- register Py_UNICODE c;
- register Py_UNICODE *p;
- int quote;
-
- /* Figure out which quote to use; single is preferred */
- quote = '\'';
- {
- char *test, *start;
- start = PyByteArray_AS_STRING(self);
- for (test = start; test < start+length; ++test) {
- if (*test == '"') {
- quote = '\''; /* back to single */
- goto decided;
- }
- else if (*test == '\'')
- quote = '"';
- }
- decided:
- ;
- }
+string_rpartition(PyBytesObject *self, PyObject *sep_obj)
+{
+ const char *sep;
+ Py_ssize_t sep_len;
+
+ if (PyBytes_Check(sep_obj)) {
+ sep = PyBytes_AS_STRING(sep_obj);
+ sep_len = PyBytes_GET_SIZE(sep_obj);
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(sep_obj))
+ return PyUnicode_Partition((PyObject *) self, sep_obj);
+#endif
+ else if (PyObject_AsCharBuffer(sep_obj, &sep, &sep_len))
+ return NULL;
+
+ return stringlib_rpartition(
+ (PyObject*) self,
+ PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
+ sep_obj, sep, sep_len
+ );
+}
- p = PyUnicode_AS_UNICODE(v);
- while (*quote_prefix)
- *p++ = *quote_prefix++;
- *p++ = quote;
-
- for (i = 0; i < length; i++) {
- /* There's at least enough room for a hex escape
- and a closing quote. */
- assert(newsize - (p - PyUnicode_AS_UNICODE(v)) >= 5);
- c = self->ob_bytes[i];
- if (c == '\'' || c == '\\')
- *p++ = '\\', *p++ = c;
- else if (c == '\t')
- *p++ = '\\', *p++ = 't';
- else if (c == '\n')
- *p++ = '\\', *p++ = 'n';
- else if (c == '\r')
- *p++ = '\\', *p++ = 'r';
- else if (c == 0)
- *p++ = '\\', *p++ = 'x', *p++ = '0', *p++ = '0';
- else if (c < ' ' || c >= 0x7f) {
- *p++ = '\\';
- *p++ = 'x';
- *p++ = hexdigits[(c & 0xf0) >> 4];
- *p++ = hexdigits[c & 0xf];
- }
- else
- *p++ = c;
- }
- assert(newsize - (p - PyUnicode_AS_UNICODE(v)) >= 1);
- *p++ = quote;
- while (*quote_postfix) {
- *p++ = *quote_postfix++;
- }
- *p = '\0';
- if (PyUnicode_Resize(&v, (p - PyUnicode_AS_UNICODE(v)))) {
- Py_DECREF(v);
- return NULL;
- }
- return v;
- }
+Py_LOCAL_INLINE(PyObject *)
+rsplit_whitespace(PyBytesObject *self, Py_ssize_t len, Py_ssize_t maxsplit)
+{
+ const char *s = PyBytes_AS_STRING(self);
+ Py_ssize_t i, j, count=0;
+ PyObject *str;
+ PyObject *list = PyList_New(PREALLOC_SIZE(maxsplit));
+
+ if (list == NULL)
+ return NULL;
+
+ i = j = len-1;
+
+ while (maxsplit-- > 0) {
+ RSKIP_SPACE(s, i);
+ if (i<0) break;
+ j = i; i--;
+ RSKIP_NONSPACE(s, i);
+ if (j == len-1 && i < 0 && PyBytes_CheckExact(self)) {
+ /* No whitespace in self, so just use it as list[0] */
+ Py_INCREF(self);
+ PyList_SET_ITEM(list, 0, (PyObject *)self);
+ count++;
+ break;
+ }
+ SPLIT_ADD(s, i + 1, j + 1);
+ }
+ if (i >= 0) {
+ /* Only occurs when maxsplit was reached */
+ /* Skip any remaining whitespace and copy to beginning of string */
+ RSKIP_SPACE(s, i);
+ if (i >= 0)
+ SPLIT_ADD(s, 0, i + 1);
+
+ }
+ FIX_PREALLOC_SIZE(list);
+ if (PyList_Reverse(list) < 0)
+ goto onError;
+ return list;
+ onError:
+ Py_DECREF(list);
+ return NULL;
}
-static PyObject *
-bytes_str(PyObject *op)
+Py_LOCAL_INLINE(PyObject *)
+rsplit_char(PyBytesObject *self, Py_ssize_t len, char ch, Py_ssize_t maxcount)
{
-#if 0
- if (Py_BytesWarningFlag) {
- if (PyErr_WarnEx(PyExc_BytesWarning,
- "str() on a bytearray instance", 1))
- return NULL;
- }
- return bytes_repr((PyByteArrayObject*)op);
-#endif
- return PyBytes_FromStringAndSize(((PyByteArrayObject*)op)->ob_bytes, Py_SIZE(op));
+ const char *s = PyBytes_AS_STRING(self);
+ register Py_ssize_t i, j, count=0;
+ PyObject *str;
+ PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+
+ if (list == NULL)
+ return NULL;
+
+ i = j = len - 1;
+ while ((i >= 0) && (maxcount-- > 0)) {
+ for (; i >= 0; i--) {
+ if (s[i] == ch) {
+ SPLIT_ADD(s, i + 1, j + 1);
+ j = i = i - 1;
+ break;
+ }
+ }
+ }
+ if (i < 0 && count == 0 && PyBytes_CheckExact(self)) {
+ /* ch not in self, so just use self as list[0] */
+ Py_INCREF(self);
+ PyList_SET_ITEM(list, 0, (PyObject *)self);
+ count++;
+ }
+ else if (j >= -1) {
+ SPLIT_ADD(s, 0, j + 1);
+ }
+ FIX_PREALLOC_SIZE(list);
+ if (PyList_Reverse(list) < 0)
+ goto onError;
+ return list;
+
+ onError:
+ Py_DECREF(list);
+ return NULL;
}
-static PyObject *
-bytes_richcompare(PyObject *self, PyObject *other, int op)
-{
- Py_ssize_t self_size, other_size;
- Py_buffer self_bytes, other_bytes;
- PyObject *res;
- Py_ssize_t minsize;
- int cmp;
-
- /* Bytes can be compared to anything that supports the (binary)
- buffer API. Except that a comparison with Unicode is always an
- error, even if the comparison is for equality. */
- if (PyObject_IsInstance(self, (PyObject*)&PyUnicode_Type) ||
- PyObject_IsInstance(other, (PyObject*)&PyUnicode_Type)) {
- if (Py_BytesWarningFlag && op == Py_EQ) {
- if (PyErr_WarnEx(PyExc_BytesWarning,
- "Comparsion between bytearray and string", 1))
- return NULL;
- }
+PyDoc_STRVAR(rsplit__doc__,
+"S.rsplit([sep [,maxsplit]]) -> list of strings\n\
+\n\
+Return a list of the words in the string S, using sep as the\n\
+delimiter string, starting at the end of the string and working\n\
+to the front. If maxsplit is given, at most maxsplit splits are\n\
+done. If sep is not specified or is None, any whitespace string\n\
+is a separator.");
- Py_INCREF(Py_NotImplemented);
- return Py_NotImplemented;
- }
+static PyObject *
+string_rsplit(PyBytesObject *self, PyObject *args)
+{
+ Py_ssize_t len = PyBytes_GET_SIZE(self), n, i, j;
+ Py_ssize_t maxsplit = -1, count=0;
+ const char *s, *sub;
+ PyObject *list, *str, *subobj = Py_None;
+
+ if (!PyArg_ParseTuple(args, "|On:rsplit", &subobj, &maxsplit))
+ return NULL;
+ if (maxsplit < 0)
+ maxsplit = PY_SSIZE_T_MAX;
+ if (subobj == Py_None)
+ return rsplit_whitespace(self, len, maxsplit);
+ if (PyBytes_Check(subobj)) {
+ sub = PyBytes_AS_STRING(subobj);
+ n = PyBytes_GET_SIZE(subobj);
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(subobj))
+ return PyUnicode_RSplit((PyObject *)self, subobj, maxsplit);
+#endif
+ else if (PyObject_AsCharBuffer(subobj, &sub, &n))
+ return NULL;
+
+ if (n == 0) {
+ PyErr_SetString(PyExc_ValueError, "empty separator");
+ return NULL;
+ }
+ else if (n == 1)
+ return rsplit_char(self, len, sub[0], maxsplit);
+
+ list = PyList_New(PREALLOC_SIZE(maxsplit));
+ if (list == NULL)
+ return NULL;
+
+ j = len;
+ i = j - n;
+
+ s = PyBytes_AS_STRING(self);
+ while ( (i >= 0) && (maxsplit-- > 0) ) {
+ for (; i>=0; i--) {
+ if (Py_STRING_MATCH(s, i, sub, n)) {
+ SPLIT_ADD(s, i + n, j);
+ j = i;
+ i -= n;
+ break;
+ }
+ }
+ }
+ SPLIT_ADD(s, 0, j);
+ FIX_PREALLOC_SIZE(list);
+ if (PyList_Reverse(list) < 0)
+ goto onError;
+ return list;
- self_size = _getbuffer(self, &self_bytes);
- if (self_size < 0) {
- PyErr_Clear();
- Py_INCREF(Py_NotImplemented);
- return Py_NotImplemented;
- }
+onError:
+ Py_DECREF(list);
+ return NULL;
+}
- other_size = _getbuffer(other, &other_bytes);
- if (other_size < 0) {
- PyErr_Clear();
- PyObject_ReleaseBuffer(self, &self_bytes);
- Py_INCREF(Py_NotImplemented);
- return Py_NotImplemented;
- }
- if (self_size != other_size && (op == Py_EQ || op == Py_NE)) {
- /* Shortcut: if the lengths differ, the objects differ */
- cmp = (op == Py_NE);
- }
- else {
- minsize = self_size;
- if (other_size < minsize)
- minsize = other_size;
-
- cmp = memcmp(self_bytes.buf, other_bytes.buf, minsize);
- /* In ISO C, memcmp() guarantees to use unsigned bytes! */
-
- if (cmp == 0) {
- if (self_size < other_size)
- cmp = -1;
- else if (self_size > other_size)
- cmp = 1;
- }
+PyDoc_STRVAR(join__doc__,
+"S.join(sequence) -> string\n\
+\n\
+Return a string which is the concatenation of the strings in the\n\
+sequence. The separator between elements is S.");
- switch (op) {
- case Py_LT: cmp = cmp < 0; break;
- case Py_LE: cmp = cmp <= 0; break;
- case Py_EQ: cmp = cmp == 0; break;
- case Py_NE: cmp = cmp != 0; break;
- case Py_GT: cmp = cmp > 0; break;
- case Py_GE: cmp = cmp >= 0; break;
- }
- }
+static PyObject *
+string_join(PyBytesObject *self, PyObject *orig)
+{
+ char *sep = PyBytes_AS_STRING(self);
+ const Py_ssize_t seplen = PyBytes_GET_SIZE(self);
+ PyObject *res = NULL;
+ char *p;
+ Py_ssize_t seqlen = 0;
+ size_t sz = 0;
+ Py_ssize_t i;
+ PyObject *seq, *item;
+
+ seq = PySequence_Fast(orig, "");
+ if (seq == NULL) {
+ return NULL;
+ }
+
+ seqlen = PySequence_Size(seq);
+ if (seqlen == 0) {
+ Py_DECREF(seq);
+ return PyBytes_FromString("");
+ }
+ if (seqlen == 1) {
+ item = PySequence_Fast_GET_ITEM(seq, 0);
+ if (PyBytes_CheckExact(item) || PyUnicode_CheckExact(item)) {
+ Py_INCREF(item);
+ Py_DECREF(seq);
+ return item;
+ }
+ }
+
+ /* There are at least two things to join, or else we have a subclass
+ * of the builtin types in the sequence.
+ * Do a pre-pass to figure out the total amount of space we'll
+ * need (sz), see whether any argument is absurd, and defer to
+ * the Unicode join if appropriate.
+ */
+ for (i = 0; i < seqlen; i++) {
+ const size_t old_sz = sz;
+ item = PySequence_Fast_GET_ITEM(seq, i);
+ if (!PyBytes_Check(item)){
+#ifdef Py_USING_UNICODE
+ if (PyUnicode_Check(item)) {
+ /* Defer to Unicode join.
+ * CAUTION: There's no gurantee that the
+ * original sequence can be iterated over
+ * again, so we must pass seq here.
+ */
+ PyObject *result;
+ result = PyUnicode_Join((PyObject *)self, seq);
+ Py_DECREF(seq);
+ return result;
+ }
+#endif
+ PyErr_Format(PyExc_TypeError,
+ "sequence item %zd: expected string,"
+ " %.80s found",
+ i, Py_TYPE(item)->tp_name);
+ Py_DECREF(seq);
+ return NULL;
+ }
+ sz += PyBytes_GET_SIZE(item);
+ if (i != 0)
+ sz += seplen;
+ if (sz < old_sz || sz > PY_SSIZE_T_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "join() result is too long for a Python string");
+ Py_DECREF(seq);
+ return NULL;
+ }
+ }
+
+ /* Allocate result space. */
+ res = PyBytes_FromStringAndSize((char*)NULL, sz);
+ if (res == NULL) {
+ Py_DECREF(seq);
+ return NULL;
+ }
+
+ /* Catenate everything. */
+ p = PyBytes_AS_STRING(res);
+ for (i = 0; i < seqlen; ++i) {
+ size_t n;
+ item = PySequence_Fast_GET_ITEM(seq, i);
+ n = PyBytes_GET_SIZE(item);
+ Py_MEMCPY(p, PyBytes_AS_STRING(item), n);
+ p += n;
+ if (i < seqlen - 1) {
+ Py_MEMCPY(p, sep, seplen);
+ p += seplen;
+ }
+ }
+
+ Py_DECREF(seq);
+ return res;
+}
- res = cmp ? Py_True : Py_False;
- PyObject_ReleaseBuffer(self, &self_bytes);
- PyObject_ReleaseBuffer(other, &other_bytes);
- Py_INCREF(res);
- return res;
+PyObject *
+_PyBytes_Join(PyObject *sep, PyObject *x)
+{
+ assert(sep != NULL && PyBytes_Check(sep));
+ assert(x != NULL);
+ return string_join((PyBytesObject *)sep, x);
}
-static void
-bytes_dealloc(PyByteArrayObject *self)
+Py_LOCAL_INLINE(void)
+string_adjust_indices(Py_ssize_t *start, Py_ssize_t *end, Py_ssize_t len)
{
- if (self->ob_bytes != 0) {
- PyMem_Free(self->ob_bytes);
- }
- Py_TYPE(self)->tp_free((PyObject *)self);
+ if (*end > len)
+ *end = len;
+ else if (*end < 0)
+ *end += len;
+ if (*end < 0)
+ *end = 0;
+ if (*start < 0)
+ *start += len;
+ if (*start < 0)
+ *start = 0;
}
+Py_LOCAL_INLINE(Py_ssize_t)
+string_find_internal(PyBytesObject *self, PyObject *args, int dir)
+{
+ PyObject *subobj;
+ const char *sub;
+ Py_ssize_t sub_len;
+ Py_ssize_t start=0, end=PY_SSIZE_T_MAX;
+ PyObject *obj_start=Py_None, *obj_end=Py_None;
+
+ if (!PyArg_ParseTuple(args, "O|OO:find/rfind/index/rindex", &subobj,
+ &obj_start, &obj_end))
+ return -2;
+ /* To support None in "start" and "end" arguments, meaning
+ the same as if they were not passed.
+ */
+ if (obj_start != Py_None)
+ if (!_PyEval_SliceIndex(obj_start, &start))
+ return -2;
+ if (obj_end != Py_None)
+ if (!_PyEval_SliceIndex(obj_end, &end))
+ return -2;
+
+ if (PyBytes_Check(subobj)) {
+ sub = PyBytes_AS_STRING(subobj);
+ sub_len = PyBytes_GET_SIZE(subobj);
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(subobj))
+ return PyUnicode_Find(
+ (PyObject *)self, subobj, start, end, dir);
+#endif
+ else if (PyObject_AsCharBuffer(subobj, &sub, &sub_len))
+ /* XXX - the "expected a character buffer object" is pretty
+ confusing for a non-expert. remap to something else ? */
+ return -2;
+
+ if (dir > 0)
+ return stringlib_find_slice(
+ PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
+ sub, sub_len, start, end);
+ else
+ return stringlib_rfind_slice(
+ PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
+ sub, sub_len, start, end);
+}
-/* -------------------------------------------------------------------- */
-/* Methods */
-#define STRINGLIB_CHAR char
-#define STRINGLIB_CMP memcmp
-#define STRINGLIB_LEN PyByteArray_GET_SIZE
-#define STRINGLIB_STR PyByteArray_AS_STRING
-#define STRINGLIB_NEW PyByteArray_FromStringAndSize
-#define STRINGLIB_EMPTY nullbytes
-#define STRINGLIB_CHECK_EXACT PyByteArray_CheckExact
-#define STRINGLIB_MUTABLE 1
+PyDoc_STRVAR(find__doc__,
+"S.find(sub [,start [,end]]) -> int\n\
+\n\
+Return the lowest index in S where substring sub is found,\n\
+such that sub is contained within s[start:end]. Optional\n\
+arguments start and end are interpreted as in slice notation.\n\
+\n\
+Return -1 on failure.");
-#include "stringlib/fastsearch.h"
-#include "stringlib/count.h"
-#include "stringlib/find.h"
-#include "stringlib/partition.h"
-#include "stringlib/ctype.h"
-#include "stringlib/transmogrify.h"
+static PyObject *
+string_find(PyBytesObject *self, PyObject *args)
+{
+ Py_ssize_t result = string_find_internal(self, args, +1);
+ if (result == -2)
+ return NULL;
+ return PyInt_FromSsize_t(result);
+}
-/* The following Py_LOCAL_INLINE and Py_LOCAL functions
-were copied from the old char* style string object. */
+PyDoc_STRVAR(index__doc__,
+"S.index(sub [,start [,end]]) -> int\n\
+\n\
+Like S.find() but raise ValueError when the substring is not found.");
-Py_LOCAL_INLINE(void)
-_adjust_indices(Py_ssize_t *start, Py_ssize_t *end, Py_ssize_t len)
+static PyObject *
+string_index(PyBytesObject *self, PyObject *args)
{
- if (*end > len)
- *end = len;
- else if (*end < 0)
- *end += len;
- if (*end < 0)
- *end = 0;
- if (*start < 0)
- *start += len;
- if (*start < 0)
- *start = 0;
+ Py_ssize_t result = string_find_internal(self, args, +1);
+ if (result == -2)
+ return NULL;
+ if (result == -1) {
+ PyErr_SetString(PyExc_ValueError,
+ "substring not found");
+ return NULL;
+ }
+ return PyInt_FromSsize_t(result);
}
-Py_LOCAL_INLINE(Py_ssize_t)
-bytes_find_internal(PyByteArrayObject *self, PyObject *args, int dir)
-{
- PyObject *subobj;
- Py_buffer subbuf;
- Py_ssize_t start=0, end=PY_SSIZE_T_MAX;
- Py_ssize_t res;
-
- if (!PyArg_ParseTuple(args, "O|O&O&:find/rfind/index/rindex", &subobj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
- return -2;
- if (_getbuffer(subobj, &subbuf) < 0)
- return -2;
- if (dir > 0)
- res = stringlib_find_slice(
- PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self),
- subbuf.buf, subbuf.len, start, end);
- else
- res = stringlib_rfind_slice(
- PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self),
- subbuf.buf, subbuf.len, start, end);
- PyObject_ReleaseBuffer(subobj, &subbuf);
- return res;
-}
-
-PyDoc_STRVAR(find__doc__,
-"B.find(sub [,start [,end]]) -> int\n\
+PyDoc_STRVAR(rfind__doc__,
+"S.rfind(sub [,start [,end]]) -> int\n\
\n\
-Return the lowest index in B where subsection sub is found,\n\
-such that sub is contained within s[start,end]. Optional\n\
+Return the highest index in S where substring sub is found,\n\
+such that sub is contained within s[start:end]. Optional\n\
arguments start and end are interpreted as in slice notation.\n\
\n\
Return -1 on failure.");
static PyObject *
-bytes_find(PyByteArrayObject *self, PyObject *args)
+string_rfind(PyBytesObject *self, PyObject *args)
{
- Py_ssize_t result = bytes_find_internal(self, args, +1);
- if (result == -2)
- return NULL;
- return PyInt_FromSsize_t(result);
+ Py_ssize_t result = string_find_internal(self, args, -1);
+ if (result == -2)
+ return NULL;
+ return PyInt_FromSsize_t(result);
}
-PyDoc_STRVAR(count__doc__,
-"B.count(sub [,start [,end]]) -> int\n\
+
+PyDoc_STRVAR(rindex__doc__,
+"S.rindex(sub [,start [,end]]) -> int\n\
\n\
-Return the number of non-overlapping occurrences of subsection sub in\n\
-bytes B[start:end]. Optional arguments start and end are interpreted\n\
-as in slice notation.");
+Like S.rfind() but raise ValueError when the substring is not found.");
static PyObject *
-bytes_count(PyByteArrayObject *self, PyObject *args)
+string_rindex(PyBytesObject *self, PyObject *args)
{
- PyObject *sub_obj;
- const char *str = PyByteArray_AS_STRING(self);
- Py_ssize_t start = 0, end = PY_SSIZE_T_MAX;
- Py_buffer vsub;
- PyObject *count_obj;
+ Py_ssize_t result = string_find_internal(self, args, -1);
+ if (result == -2)
+ return NULL;
+ if (result == -1) {
+ PyErr_SetString(PyExc_ValueError,
+ "substring not found");
+ return NULL;
+ }
+ return PyInt_FromSsize_t(result);
+}
- if (!PyArg_ParseTuple(args, "O|O&O&:count", &sub_obj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
- return NULL;
- if (_getbuffer(sub_obj, &vsub) < 0)
- return NULL;
+Py_LOCAL_INLINE(PyObject *)
+do_xstrip(PyBytesObject *self, int striptype, PyObject *sepobj)
+{
+ char *s = PyBytes_AS_STRING(self);
+ Py_ssize_t len = PyBytes_GET_SIZE(self);
+ char *sep = PyBytes_AS_STRING(sepobj);
+ Py_ssize_t seplen = PyBytes_GET_SIZE(sepobj);
+ Py_ssize_t i, j;
+
+ i = 0;
+ if (striptype != RIGHTSTRIP) {
+ while (i < len && memchr(sep, Py_CHARMASK(s[i]), seplen)) {
+ i++;
+ }
+ }
+
+ j = len;
+ if (striptype != LEFTSTRIP) {
+ do {
+ j--;
+ } while (j >= i && memchr(sep, Py_CHARMASK(s[j]), seplen));
+ j++;
+ }
+
+ if (i == 0 && j == len && PyBytes_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyObject*)self;
+ }
+ else
+ return PyBytes_FromStringAndSize(s+i, j-i);
+}
- _adjust_indices(&start, &end, PyByteArray_GET_SIZE(self));
- count_obj = PyInt_FromSsize_t(
- stringlib_count(str + start, end - start, vsub.buf, vsub.len)
- );
- PyObject_ReleaseBuffer(sub_obj, &vsub);
- return count_obj;
+Py_LOCAL_INLINE(PyObject *)
+do_strip(PyBytesObject *self, int striptype)
+{
+ char *s = PyBytes_AS_STRING(self);
+ Py_ssize_t len = PyBytes_GET_SIZE(self), i, j;
+
+ i = 0;
+ if (striptype != RIGHTSTRIP) {
+ while (i < len && isspace(Py_CHARMASK(s[i]))) {
+ i++;
+ }
+ }
+
+ j = len;
+ if (striptype != LEFTSTRIP) {
+ do {
+ j--;
+ } while (j >= i && isspace(Py_CHARMASK(s[j])));
+ j++;
+ }
+
+ if (i == 0 && j == len && PyBytes_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyObject*)self;
+ }
+ else
+ return PyBytes_FromStringAndSize(s+i, j-i);
}
-PyDoc_STRVAR(index__doc__,
-"B.index(sub [,start [,end]]) -> int\n\
+Py_LOCAL_INLINE(PyObject *)
+do_argstrip(PyBytesObject *self, int striptype, PyObject *args)
+{
+ PyObject *sep = NULL;
+
+ if (!PyArg_ParseTuple(args, (char *)stripformat[striptype], &sep))
+ return NULL;
+
+ if (sep != NULL && sep != Py_None) {
+ if (PyBytes_Check(sep))
+ return do_xstrip(self, striptype, sep);
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(sep)) {
+ PyObject *uniself = PyUnicode_FromObject((PyObject *)self);
+ PyObject *res;
+ if (uniself==NULL)
+ return NULL;
+ res = _PyUnicode_XStrip((PyUnicodeObject *)uniself,
+ striptype, sep);
+ Py_DECREF(uniself);
+ return res;
+ }
+#endif
+ PyErr_Format(PyExc_TypeError,
+#ifdef Py_USING_UNICODE
+ "%s arg must be None, str or unicode",
+#else
+ "%s arg must be None or str",
+#endif
+ STRIPNAME(striptype));
+ return NULL;
+ }
+
+ return do_strip(self, striptype);
+}
+
+
+PyDoc_STRVAR(strip__doc__,
+"S.strip([chars]) -> string or unicode\n\
\n\
-Like B.find() but raise ValueError when the subsection is not found.");
+Return a copy of the string S with leading and trailing\n\
+whitespace removed.\n\
+If chars is given and not None, remove characters in chars instead.\n\
+If chars is unicode, S will be converted to unicode before stripping");
static PyObject *
-bytes_index(PyByteArrayObject *self, PyObject *args)
+string_strip(PyBytesObject *self, PyObject *args)
{
- Py_ssize_t result = bytes_find_internal(self, args, +1);
- if (result == -2)
- return NULL;
- if (result == -1) {
- PyErr_SetString(PyExc_ValueError,
- "subsection not found");
- return NULL;
- }
- return PyInt_FromSsize_t(result);
+ if (PyTuple_GET_SIZE(args) == 0)
+ return do_strip(self, BOTHSTRIP); /* Common case */
+ else
+ return do_argstrip(self, BOTHSTRIP, args);
}
-PyDoc_STRVAR(rfind__doc__,
-"B.rfind(sub [,start [,end]]) -> int\n\
-\n\
-Return the highest index in B where subsection sub is found,\n\
-such that sub is contained within s[start,end]. Optional\n\
-arguments start and end are interpreted as in slice notation.\n\
+PyDoc_STRVAR(lstrip__doc__,
+"S.lstrip([chars]) -> string or unicode\n\
\n\
-Return -1 on failure.");
+Return a copy of the string S with leading whitespace removed.\n\
+If chars is given and not None, remove characters in chars instead.\n\
+If chars is unicode, S will be converted to unicode before stripping");
static PyObject *
-bytes_rfind(PyByteArrayObject *self, PyObject *args)
+string_lstrip(PyBytesObject *self, PyObject *args)
{
- Py_ssize_t result = bytes_find_internal(self, args, -1);
- if (result == -2)
- return NULL;
- return PyInt_FromSsize_t(result);
+ if (PyTuple_GET_SIZE(args) == 0)
+ return do_strip(self, LEFTSTRIP); /* Common case */
+ else
+ return do_argstrip(self, LEFTSTRIP, args);
}
-PyDoc_STRVAR(rindex__doc__,
-"B.rindex(sub [,start [,end]]) -> int\n\
+PyDoc_STRVAR(rstrip__doc__,
+"S.rstrip([chars]) -> string or unicode\n\
\n\
-Like B.rfind() but raise ValueError when the subsection is not found.");
+Return a copy of the string S with trailing whitespace removed.\n\
+If chars is given and not None, remove characters in chars instead.\n\
+If chars is unicode, S will be converted to unicode before stripping");
static PyObject *
-bytes_rindex(PyByteArrayObject *self, PyObject *args)
+string_rstrip(PyBytesObject *self, PyObject *args)
{
- Py_ssize_t result = bytes_find_internal(self, args, -1);
- if (result == -2)
- return NULL;
- if (result == -1) {
- PyErr_SetString(PyExc_ValueError,
- "subsection not found");
- return NULL;
- }
- return PyInt_FromSsize_t(result);
+ if (PyTuple_GET_SIZE(args) == 0)
+ return do_strip(self, RIGHTSTRIP); /* Common case */
+ else
+ return do_argstrip(self, RIGHTSTRIP, args);
}
-static int
-bytes_contains(PyObject *self, PyObject *arg)
-{
- Py_ssize_t ival = PyNumber_AsSsize_t(arg, PyExc_ValueError);
- if (ival == -1 && PyErr_Occurred()) {
- Py_buffer varg;
- int pos;
- PyErr_Clear();
- if (_getbuffer(arg, &varg) < 0)
- return -1;
- pos = stringlib_find(PyByteArray_AS_STRING(self), Py_SIZE(self),
- varg.buf, varg.len, 0);
- PyObject_ReleaseBuffer(arg, &varg);
- return pos >= 0;
- }
- if (ival < 0 || ival >= 256) {
- PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
- return -1;
- }
-
- return memchr(PyByteArray_AS_STRING(self), ival, Py_SIZE(self)) != NULL;
-}
+PyDoc_STRVAR(lower__doc__,
+"S.lower() -> string\n\
+\n\
+Return a copy of the string S converted to lowercase.");
+/* _tolower and _toupper are defined by SUSv2, but they're not ISO C */
+#ifndef _tolower
+#define _tolower tolower
+#endif
-/* Matches the end (direction >= 0) or start (direction < 0) of self
- * against substr, using the start and end arguments. Returns
- * -1 on error, 0 if not found and 1 if found.
- */
-Py_LOCAL(int)
-_bytes_tailmatch(PyByteArrayObject *self, PyObject *substr, Py_ssize_t start,
- Py_ssize_t end, int direction)
+static PyObject *
+string_lower(PyBytesObject *self)
{
- Py_ssize_t len = PyByteArray_GET_SIZE(self);
- const char* str;
- Py_buffer vsubstr;
- int rv = 0;
-
- str = PyByteArray_AS_STRING(self);
+ char *s;
+ Py_ssize_t i, n = PyBytes_GET_SIZE(self);
+ PyObject *newobj;
- if (_getbuffer(substr, &vsubstr) < 0)
- return -1;
+ newobj = PyBytes_FromStringAndSize(NULL, n);
+ if (!newobj)
+ return NULL;
- _adjust_indices(&start, &end, len);
+ s = PyBytes_AS_STRING(newobj);
- if (direction < 0) {
- /* startswith */
- if (start+vsubstr.len > len) {
- goto done;
- }
- } else {
- /* endswith */
- if (end-start < vsubstr.len || start > len) {
- goto done;
- }
+ Py_MEMCPY(s, PyBytes_AS_STRING(self), n);
- if (end-vsubstr.len > start)
- start = end - vsubstr.len;
- }
- if (end-start >= vsubstr.len)
- rv = ! memcmp(str+start, vsubstr.buf, vsubstr.len);
+ for (i = 0; i < n; i++) {
+ int c = Py_CHARMASK(s[i]);
+ if (isupper(c))
+ s[i] = _tolower(c);
+ }
-done:
- PyObject_ReleaseBuffer(substr, &vsubstr);
- return rv;
+ return newobj;
}
-
-PyDoc_STRVAR(startswith__doc__,
-"B.startswith(prefix [,start [,end]]) -> bool\n\
+PyDoc_STRVAR(upper__doc__,
+"S.upper() -> string\n\
\n\
-Return True if B starts with the specified prefix, False otherwise.\n\
-With optional start, test B beginning at that position.\n\
-With optional end, stop comparing B at that position.\n\
-prefix can also be a tuple of strings to try.");
+Return a copy of the string S converted to uppercase.");
+
+#ifndef _toupper
+#define _toupper toupper
+#endif
static PyObject *
-bytes_startswith(PyByteArrayObject *self, PyObject *args)
+string_upper(PyBytesObject *self)
{
- Py_ssize_t start = 0;
- Py_ssize_t end = PY_SSIZE_T_MAX;
- PyObject *subobj;
- int result;
+ char *s;
+ Py_ssize_t i, n = PyBytes_GET_SIZE(self);
+ PyObject *newobj;
- if (!PyArg_ParseTuple(args, "O|O&O&:startswith", &subobj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
- return NULL;
- if (PyTuple_Check(subobj)) {
- Py_ssize_t i;
- for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
- result = _bytes_tailmatch(self,
- PyTuple_GET_ITEM(subobj, i),
- start, end, -1);
- if (result == -1)
- return NULL;
- else if (result) {
- Py_RETURN_TRUE;
- }
- }
- Py_RETURN_FALSE;
- }
- result = _bytes_tailmatch(self, subobj, start, end, -1);
- if (result == -1)
- return NULL;
- else
- return PyBool_FromLong(result);
+ newobj = PyBytes_FromStringAndSize(NULL, n);
+ if (!newobj)
+ return NULL;
+
+ s = PyBytes_AS_STRING(newobj);
+
+ Py_MEMCPY(s, PyBytes_AS_STRING(self), n);
+
+ for (i = 0; i < n; i++) {
+ int c = Py_CHARMASK(s[i]);
+ if (islower(c))
+ s[i] = _toupper(c);
+ }
+
+ return newobj;
}
-PyDoc_STRVAR(endswith__doc__,
-"B.endswith(suffix [,start [,end]]) -> bool\n\
+PyDoc_STRVAR(title__doc__,
+"S.title() -> string\n\
\n\
-Return True if B ends with the specified suffix, False otherwise.\n\
-With optional start, test B beginning at that position.\n\
-With optional end, stop comparing B at that position.\n\
-suffix can also be a tuple of strings to try.");
+Return a titlecased version of S, i.e. words start with uppercase\n\
+characters, all remaining cased characters have lowercase.");
-static PyObject *
-bytes_endswith(PyByteArrayObject *self, PyObject *args)
+static PyObject*
+string_title(PyBytesObject *self)
{
- Py_ssize_t start = 0;
- Py_ssize_t end = PY_SSIZE_T_MAX;
- PyObject *subobj;
- int result;
+ char *s = PyBytes_AS_STRING(self), *s_new;
+ Py_ssize_t i, n = PyBytes_GET_SIZE(self);
+ int previous_is_cased = 0;
+ PyObject *newobj;
+
+ newobj = PyBytes_FromStringAndSize(NULL, n);
+ if (newobj == NULL)
+ return NULL;
+ s_new = PyBytes_AsString(newobj);
+ for (i = 0; i < n; i++) {
+ int c = Py_CHARMASK(*s++);
+ if (islower(c)) {
+ if (!previous_is_cased)
+ c = toupper(c);
+ previous_is_cased = 1;
+ } else if (isupper(c)) {
+ if (previous_is_cased)
+ c = tolower(c);
+ previous_is_cased = 1;
+ } else
+ previous_is_cased = 0;
+ *s_new++ = c;
+ }
+ return newobj;
+}
- if (!PyArg_ParseTuple(args, "O|O&O&:endswith", &subobj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
- return NULL;
- if (PyTuple_Check(subobj)) {
- Py_ssize_t i;
- for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
- result = _bytes_tailmatch(self,
- PyTuple_GET_ITEM(subobj, i),
- start, end, +1);
- if (result == -1)
- return NULL;
- else if (result) {
- Py_RETURN_TRUE;
- }
- }
- Py_RETURN_FALSE;
- }
- result = _bytes_tailmatch(self, subobj, start, end, +1);
- if (result == -1)
- return NULL;
- else
- return PyBool_FromLong(result);
+PyDoc_STRVAR(capitalize__doc__,
+"S.capitalize() -> string\n\
+\n\
+Return a copy of the string S with only its first character\n\
+capitalized.");
+
+static PyObject *
+string_capitalize(PyBytesObject *self)
+{
+ char *s = PyBytes_AS_STRING(self), *s_new;
+ Py_ssize_t i, n = PyBytes_GET_SIZE(self);
+ PyObject *newobj;
+
+ newobj = PyBytes_FromStringAndSize(NULL, n);
+ if (newobj == NULL)
+ return NULL;
+ s_new = PyBytes_AsString(newobj);
+ if (0 < n) {
+ int c = Py_CHARMASK(*s++);
+ if (islower(c))
+ *s_new = toupper(c);
+ else
+ *s_new = c;
+ s_new++;
+ }
+ for (i = 1; i < n; i++) {
+ int c = Py_CHARMASK(*s++);
+ if (isupper(c))
+ *s_new = tolower(c);
+ else
+ *s_new = c;
+ s_new++;
+ }
+ return newobj;
}
-PyDoc_STRVAR(translate__doc__,
-"B.translate(table[, deletechars]) -> bytearray\n\
+PyDoc_STRVAR(count__doc__,
+"S.count(sub[, start[, end]]) -> int\n\
\n\
-Return a copy of B, where all characters occurring in the\n\
-optional argument deletechars are removed, and the remaining\n\
-characters have been mapped through the given translation\n\
-table, which must be a bytes object of length 256.");
+Return the number of non-overlapping occurrences of substring sub in\n\
+string S[start:end]. Optional arguments start and end are interpreted\n\
+as in slice notation.");
static PyObject *
-bytes_translate(PyByteArrayObject *self, PyObject *args)
-{
- register char *input, *output;
- register const char *table;
- register Py_ssize_t i, c, changed = 0;
- PyObject *input_obj = (PyObject*)self;
- const char *output_start;
- Py_ssize_t inlen;
- PyObject *result;
- int trans_table[256];
- PyObject *tableobj, *delobj = NULL;
- Py_buffer vtable, vdel;
-
- if (!PyArg_UnpackTuple(args, "translate", 1, 2,
- &tableobj, &delobj))
- return NULL;
-
- if (_getbuffer(tableobj, &vtable) < 0)
- return NULL;
+string_count(PyBytesObject *self, PyObject *args)
+{
+ PyObject *sub_obj;
+ const char *str = PyBytes_AS_STRING(self), *sub;
+ Py_ssize_t sub_len;
+ Py_ssize_t start = 0, end = PY_SSIZE_T_MAX;
+
+ if (!PyArg_ParseTuple(args, "O|O&O&:count", &sub_obj,
+ _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ return NULL;
+
+ if (PyBytes_Check(sub_obj)) {
+ sub = PyBytes_AS_STRING(sub_obj);
+ sub_len = PyBytes_GET_SIZE(sub_obj);
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(sub_obj)) {
+ Py_ssize_t count;
+ count = PyUnicode_Count((PyObject *)self, sub_obj, start, end);
+ if (count == -1)
+ return NULL;
+ else
+ return PyInt_FromSsize_t(count);
+ }
+#endif
+ else if (PyObject_AsCharBuffer(sub_obj, &sub, &sub_len))
+ return NULL;
- if (vtable.len != 256) {
- PyErr_SetString(PyExc_ValueError,
- "translation table must be 256 characters long");
- result = NULL;
- goto done;
- }
+ string_adjust_indices(&start, &end, PyBytes_GET_SIZE(self));
- if (delobj != NULL) {
- if (_getbuffer(delobj, &vdel) < 0) {
- result = NULL;
- goto done;
- }
- }
- else {
- vdel.buf = NULL;
- vdel.len = 0;
- }
+ return PyInt_FromSsize_t(
+ stringlib_count(str + start, end - start, sub, sub_len)
+ );
+}
- table = (const char *)vtable.buf;
- inlen = PyByteArray_GET_SIZE(input_obj);
- result = PyByteArray_FromStringAndSize((char *)NULL, inlen);
- if (result == NULL)
- goto done;
- output_start = output = PyByteArray_AsString(result);
- input = PyByteArray_AS_STRING(input_obj);
-
- if (vdel.len == 0) {
- /* If no deletions are required, use faster code */
- for (i = inlen; --i >= 0; ) {
- c = Py_CHARMASK(*input++);
- if (Py_CHARMASK((*output++ = table[c])) != c)
- changed = 1;
- }
- if (changed || !PyByteArray_CheckExact(input_obj))
- goto done;
- Py_DECREF(result);
- Py_INCREF(input_obj);
- result = input_obj;
- goto done;
- }
+PyDoc_STRVAR(swapcase__doc__,
+"S.swapcase() -> string\n\
+\n\
+Return a copy of the string S with uppercase characters\n\
+converted to lowercase and vice versa.");
- for (i = 0; i < 256; i++)
- trans_table[i] = Py_CHARMASK(table[i]);
+static PyObject *
+string_swapcase(PyBytesObject *self)
+{
+ char *s = PyBytes_AS_STRING(self), *s_new;
+ Py_ssize_t i, n = PyBytes_GET_SIZE(self);
+ PyObject *newobj;
+
+ newobj = PyBytes_FromStringAndSize(NULL, n);
+ if (newobj == NULL)
+ return NULL;
+ s_new = PyBytes_AsString(newobj);
+ for (i = 0; i < n; i++) {
+ int c = Py_CHARMASK(*s++);
+ if (islower(c)) {
+ *s_new = toupper(c);
+ }
+ else if (isupper(c)) {
+ *s_new = tolower(c);
+ }
+ else
+ *s_new = c;
+ s_new++;
+ }
+ return newobj;
+}
- for (i = 0; i < vdel.len; i++)
- trans_table[(int) Py_CHARMASK( ((unsigned char*)vdel.buf)[i] )] = -1;
- for (i = inlen; --i >= 0; ) {
- c = Py_CHARMASK(*input++);
- if (trans_table[c] != -1)
- if (Py_CHARMASK(*output++ = (char)trans_table[c]) == c)
- continue;
- changed = 1;
- }
- if (!changed && PyByteArray_CheckExact(input_obj)) {
- Py_DECREF(result);
- Py_INCREF(input_obj);
- result = input_obj;
- goto done;
- }
- /* Fix the size of the resulting string */
- if (inlen > 0)
- PyByteArray_Resize(result, output - output_start);
+PyDoc_STRVAR(translate__doc__,
+"S.translate(table [,deletechars]) -> string\n\
+\n\
+Return a copy of the string S, where all characters occurring\n\
+in the optional argument deletechars are removed, and the\n\
+remaining characters have been mapped through the given\n\
+translation table, which must be a string of length 256.");
-done:
- PyObject_ReleaseBuffer(tableobj, &vtable);
- if (delobj != NULL)
- PyObject_ReleaseBuffer(delobj, &vdel);
- return result;
+static PyObject *
+string_translate(PyBytesObject *self, PyObject *args)
+{
+ register char *input, *output;
+ const char *table;
+ register Py_ssize_t i, c, changed = 0;
+ PyObject *input_obj = (PyObject*)self;
+ const char *output_start, *del_table=NULL;
+ Py_ssize_t inlen, tablen, dellen = 0;
+ PyObject *result;
+ int trans_table[256];
+ PyObject *tableobj, *delobj = NULL;
+
+ if (!PyArg_UnpackTuple(args, "translate", 1, 2,
+ &tableobj, &delobj))
+ return NULL;
+
+ if (PyBytes_Check(tableobj)) {
+ table = PyBytes_AS_STRING(tableobj);
+ tablen = PyBytes_GET_SIZE(tableobj);
+ }
+ else if (tableobj == Py_None) {
+ table = NULL;
+ tablen = 256;
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(tableobj)) {
+ /* Unicode .translate() does not support the deletechars
+ parameter; instead a mapping to None will cause characters
+ to be deleted. */
+ if (delobj != NULL) {
+ PyErr_SetString(PyExc_TypeError,
+ "deletions are implemented differently for unicode");
+ return NULL;
+ }
+ return PyUnicode_Translate((PyObject *)self, tableobj, NULL);
+ }
+#endif
+ else if (PyObject_AsCharBuffer(tableobj, &table, &tablen))
+ return NULL;
+
+ if (tablen != 256) {
+ PyErr_SetString(PyExc_ValueError,
+ "translation table must be 256 characters long");
+ return NULL;
+ }
+
+ if (delobj != NULL) {
+ if (PyBytes_Check(delobj)) {
+ del_table = PyBytes_AS_STRING(delobj);
+ dellen = PyBytes_GET_SIZE(delobj);
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(delobj)) {
+ PyErr_SetString(PyExc_TypeError,
+ "deletions are implemented differently for unicode");
+ return NULL;
+ }
+#endif
+ else if (PyObject_AsCharBuffer(delobj, &del_table, &dellen))
+ return NULL;
+ }
+ else {
+ del_table = NULL;
+ dellen = 0;
+ }
+
+ inlen = PyBytes_GET_SIZE(input_obj);
+ result = PyBytes_FromStringAndSize((char *)NULL, inlen);
+ if (result == NULL)
+ return NULL;
+ output_start = output = PyBytes_AsString(result);
+ input = PyBytes_AS_STRING(input_obj);
+
+ if (dellen == 0 && table != NULL) {
+ /* If no deletions are required, use faster code */
+ for (i = inlen; --i >= 0; ) {
+ c = Py_CHARMASK(*input++);
+ if (Py_CHARMASK((*output++ = table[c])) != c)
+ changed = 1;
+ }
+ if (changed || !PyBytes_CheckExact(input_obj))
+ return result;
+ Py_DECREF(result);
+ Py_INCREF(input_obj);
+ return input_obj;
+ }
+
+ if (table == NULL) {
+ for (i = 0; i < 256; i++)
+ trans_table[i] = Py_CHARMASK(i);
+ } else {
+ for (i = 0; i < 256; i++)
+ trans_table[i] = Py_CHARMASK(table[i]);
+ }
+
+ for (i = 0; i < dellen; i++)
+ trans_table[(int) Py_CHARMASK(del_table[i])] = -1;
+
+ for (i = inlen; --i >= 0; ) {
+ c = Py_CHARMASK(*input++);
+ if (trans_table[c] != -1)
+ if (Py_CHARMASK(*output++ = (char)trans_table[c]) == c)
+ continue;
+ changed = 1;
+ }
+ if (!changed && PyBytes_CheckExact(input_obj)) {
+ Py_DECREF(result);
+ Py_INCREF(input_obj);
+ return input_obj;
+ }
+ /* Fix the size of the resulting string */
+ if (inlen > 0)
+ _PyBytes_Resize(&result, output - output_start);
+ return result;
}
@@ -1518,1862 +2541,2636 @@ done:
/* find and count characters and substrings */
-#define findchar(target, target_len, c) \
+#define findchar(target, target_len, c) \
((char *)memchr((const void *)(target), c, target_len))
-/* Don't call if length < 2 */
-#define Py_STRING_MATCH(target, offset, pattern, length) \
- (target[offset] == pattern[0] && \
- target[offset+length-1] == pattern[length-1] && \
- !memcmp(target+offset+1, pattern+1, length-2) )
-
-
-/* Bytes ops must return a string. */
-/* If the object is subclass of bytes, create a copy */
-Py_LOCAL(PyByteArrayObject *)
-return_self(PyByteArrayObject *self)
+/* String ops must return a string. */
+/* If the object is subclass of string, create a copy */
+Py_LOCAL(PyBytesObject *)
+return_self(PyBytesObject *self)
{
- if (PyByteArray_CheckExact(self)) {
- Py_INCREF(self);
- return (PyByteArrayObject *)self;
- }
- return (PyByteArrayObject *)PyByteArray_FromStringAndSize(
- PyByteArray_AS_STRING(self),
- PyByteArray_GET_SIZE(self));
+ if (PyBytes_CheckExact(self)) {
+ Py_INCREF(self);
+ return self;
+ }
+ return (PyBytesObject *)PyBytes_FromStringAndSize(
+ PyBytes_AS_STRING(self),
+ PyBytes_GET_SIZE(self));
}
Py_LOCAL_INLINE(Py_ssize_t)
-countchar(const char *target, Py_ssize_t target_len, char c, Py_ssize_t maxcount)
+countchar(const char *target, int target_len, char c, Py_ssize_t maxcount)
{
- Py_ssize_t count=0;
- const char *start=target;
- const char *end=target+target_len;
-
- while ( (start=findchar(start, end-start, c)) != NULL ) {
- count++;
- if (count >= maxcount)
- break;
- start += 1;
- }
- return count;
+ Py_ssize_t count=0;
+ const char *start=target;
+ const char *end=target+target_len;
+
+ while ( (start=findchar(start, end-start, c)) != NULL ) {
+ count++;
+ if (count >= maxcount)
+ break;
+ start += 1;
+ }
+ return count;
}
Py_LOCAL(Py_ssize_t)
findstring(const char *target, Py_ssize_t target_len,
- const char *pattern, Py_ssize_t pattern_len,
- Py_ssize_t start,
- Py_ssize_t end,
- int direction)
-{
- if (start < 0) {
- start += target_len;
- if (start < 0)
- start = 0;
- }
- if (end > target_len) {
- end = target_len;
- } else if (end < 0) {
- end += target_len;
- if (end < 0)
- end = 0;
- }
-
- /* zero-length substrings always match at the first attempt */
- if (pattern_len == 0)
- return (direction > 0) ? start : end;
-
- end -= pattern_len;
-
- if (direction < 0) {
- for (; end >= start; end--)
- if (Py_STRING_MATCH(target, end, pattern, pattern_len))
- return end;
- } else {
- for (; start <= end; start++)
- if (Py_STRING_MATCH(target, start, pattern, pattern_len))
- return start;
- }
- return -1;
+ const char *pattern, Py_ssize_t pattern_len,
+ Py_ssize_t start,
+ Py_ssize_t end,
+ int direction)
+{
+ if (start < 0) {
+ start += target_len;
+ if (start < 0)
+ start = 0;
+ }
+ if (end > target_len) {
+ end = target_len;
+ } else if (end < 0) {
+ end += target_len;
+ if (end < 0)
+ end = 0;
+ }
+
+ /* zero-length substrings always match at the first attempt */
+ if (pattern_len == 0)
+ return (direction > 0) ? start : end;
+
+ end -= pattern_len;
+
+ if (direction < 0) {
+ for (; end >= start; end--)
+ if (Py_STRING_MATCH(target, end, pattern, pattern_len))
+ return end;
+ } else {
+ for (; start <= end; start++)
+ if (Py_STRING_MATCH(target, start, pattern, pattern_len))
+ return start;
+ }
+ return -1;
}
Py_LOCAL_INLINE(Py_ssize_t)
countstring(const char *target, Py_ssize_t target_len,
- const char *pattern, Py_ssize_t pattern_len,
- Py_ssize_t start,
- Py_ssize_t end,
- int direction, Py_ssize_t maxcount)
+ const char *pattern, Py_ssize_t pattern_len,
+ Py_ssize_t start,
+ Py_ssize_t end,
+ int direction, Py_ssize_t maxcount)
{
- Py_ssize_t count=0;
-
- if (start < 0) {
- start += target_len;
- if (start < 0)
- start = 0;
- }
- if (end > target_len) {
- end = target_len;
- } else if (end < 0) {
- end += target_len;
- if (end < 0)
- end = 0;
- }
-
- /* zero-length substrings match everywhere */
- if (pattern_len == 0 || maxcount == 0) {
- if (target_len+1 < maxcount)
- return target_len+1;
- return maxcount;
- }
-
- end -= pattern_len;
- if (direction < 0) {
- for (; (end >= start); end--)
- if (Py_STRING_MATCH(target, end, pattern, pattern_len)) {
- count++;
- if (--maxcount <= 0) break;
- end -= pattern_len-1;
- }
- } else {
- for (; (start <= end); start++)
- if (Py_STRING_MATCH(target, start, pattern, pattern_len)) {
- count++;
- if (--maxcount <= 0)
- break;
- start += pattern_len-1;
- }
- }
- return count;
+ Py_ssize_t count=0;
+
+ if (start < 0) {
+ start += target_len;
+ if (start < 0)
+ start = 0;
+ }
+ if (end > target_len) {
+ end = target_len;
+ } else if (end < 0) {
+ end += target_len;
+ if (end < 0)
+ end = 0;
+ }
+
+ /* zero-length substrings match everywhere */
+ if (pattern_len == 0 || maxcount == 0) {
+ if (target_len+1 < maxcount)
+ return target_len+1;
+ return maxcount;
+ }
+
+ end -= pattern_len;
+ if (direction < 0) {
+ for (; (end >= start); end--)
+ if (Py_STRING_MATCH(target, end, pattern, pattern_len)) {
+ count++;
+ if (--maxcount <= 0) break;
+ end -= pattern_len-1;
+ }
+ } else {
+ for (; (start <= end); start++)
+ if (Py_STRING_MATCH(target, start, pattern, pattern_len)) {
+ count++;
+ if (--maxcount <= 0)
+ break;
+ start += pattern_len-1;
+ }
+ }
+ return count;
}
/* Algorithms for different cases of string replacement */
/* len(self)>=1, from="", len(to)>=1, maxcount>=1 */
-Py_LOCAL(PyByteArrayObject *)
-replace_interleave(PyByteArrayObject *self,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount)
-{
- char *self_s, *result_s;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count, i, product;
- PyByteArrayObject *result;
-
- self_len = PyByteArray_GET_SIZE(self);
-
- /* 1 at the end plus 1 after every character */
- count = self_len+1;
- if (maxcount < count)
- count = maxcount;
-
- /* Check for overflow */
- /* result_len = count * to_len + self_len; */
- product = count * to_len;
- if (product / to_len != count) {
- PyErr_SetString(PyExc_OverflowError,
- "replace string is too long");
- return NULL;
- }
- result_len = product + self_len;
- if (result_len < 0) {
- PyErr_SetString(PyExc_OverflowError,
- "replace string is too long");
- return NULL;
- }
-
- if (! (result = (PyByteArrayObject *)
- PyByteArray_FromStringAndSize(NULL, result_len)) )
- return NULL;
-
- self_s = PyByteArray_AS_STRING(self);
- result_s = PyByteArray_AS_STRING(result);
-
- /* TODO: special case single character, which doesn't need memcpy */
-
- /* Lay the first one down (guaranteed this will occur) */
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- count -= 1;
-
- for (i=0; i<count; i++) {
- *result_s++ = *self_s++;
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- }
-
- /* Copy the rest of the original string */
- Py_MEMCPY(result_s, self_s, self_len-i);
-
- return result;
+Py_LOCAL(PyBytesObject *)
+replace_interleave(PyBytesObject *self,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount)
+{
+ char *self_s, *result_s;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count, i, product;
+ PyBytesObject *result;
+
+ self_len = PyBytes_GET_SIZE(self);
+
+ /* 1 at the end plus 1 after every character */
+ count = self_len+1;
+ if (maxcount < count)
+ count = maxcount;
+
+ /* Check for overflow */
+ /* result_len = count * to_len + self_len; */
+ product = count * to_len;
+ if (product / to_len != count) {
+ PyErr_SetString(PyExc_OverflowError,
+ "replace string is too long");
+ return NULL;
+ }
+ result_len = product + self_len;
+ if (result_len < 0) {
+ PyErr_SetString(PyExc_OverflowError,
+ "replace string is too long");
+ return NULL;
+ }
+
+ if (! (result = (PyBytesObject *)
+ PyBytes_FromStringAndSize(NULL, result_len)) )
+ return NULL;
+
+ self_s = PyBytes_AS_STRING(self);
+ result_s = PyBytes_AS_STRING(result);
+
+ /* TODO: special case single character, which doesn't need memcpy */
+
+ /* Lay the first one down (guaranteed this will occur) */
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ count -= 1;
+
+ for (i=0; i<count; i++) {
+ *result_s++ = *self_s++;
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ }
+
+ /* Copy the rest of the original string */
+ Py_MEMCPY(result_s, self_s, self_len-i);
+
+ return result;
}
/* Special case for deleting a single character */
/* len(self)>=1, len(from)==1, to="", maxcount>=1 */
-Py_LOCAL(PyByteArrayObject *)
-replace_delete_single_character(PyByteArrayObject *self,
- char from_c, Py_ssize_t maxcount)
-{
- char *self_s, *result_s;
- char *start, *next, *end;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count;
- PyByteArrayObject *result;
-
- self_len = PyByteArray_GET_SIZE(self);
- self_s = PyByteArray_AS_STRING(self);
-
- count = countchar(self_s, self_len, from_c, maxcount);
- if (count == 0) {
- return return_self(self);
- }
-
- result_len = self_len - count; /* from_len == 1 */
- assert(result_len>=0);
-
- if ( (result = (PyByteArrayObject *)
- PyByteArray_FromStringAndSize(NULL, result_len)) == NULL)
- return NULL;
- result_s = PyByteArray_AS_STRING(result);
-
- start = self_s;
- end = self_s + self_len;
- while (count-- > 0) {
- next = findchar(start, end-start, from_c);
- if (next == NULL)
- break;
- Py_MEMCPY(result_s, start, next-start);
- result_s += (next-start);
- start = next+1;
- }
- Py_MEMCPY(result_s, start, end-start);
-
- return result;
+Py_LOCAL(PyBytesObject *)
+replace_delete_single_character(PyBytesObject *self,
+ char from_c, Py_ssize_t maxcount)
+{
+ char *self_s, *result_s;
+ char *start, *next, *end;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count;
+ PyBytesObject *result;
+
+ self_len = PyBytes_GET_SIZE(self);
+ self_s = PyBytes_AS_STRING(self);
+
+ count = countchar(self_s, self_len, from_c, maxcount);
+ if (count == 0) {
+ return return_self(self);
+ }
+
+ result_len = self_len - count; /* from_len == 1 */
+ assert(result_len>=0);
+
+ if ( (result = (PyBytesObject *)
+ PyBytes_FromStringAndSize(NULL, result_len)) == NULL)
+ return NULL;
+ result_s = PyBytes_AS_STRING(result);
+
+ start = self_s;
+ end = self_s + self_len;
+ while (count-- > 0) {
+ next = findchar(start, end-start, from_c);
+ if (next == NULL)
+ break;
+ Py_MEMCPY(result_s, start, next-start);
+ result_s += (next-start);
+ start = next+1;
+ }
+ Py_MEMCPY(result_s, start, end-start);
+
+ return result;
}
/* len(self)>=1, len(from)>=2, to="", maxcount>=1 */
-Py_LOCAL(PyByteArrayObject *)
-replace_delete_substring(PyByteArrayObject *self,
- const char *from_s, Py_ssize_t from_len,
- Py_ssize_t maxcount)
-{
- char *self_s, *result_s;
- char *start, *next, *end;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count, offset;
- PyByteArrayObject *result;
-
- self_len = PyByteArray_GET_SIZE(self);
- self_s = PyByteArray_AS_STRING(self);
-
- count = countstring(self_s, self_len,
- from_s, from_len,
- 0, self_len, 1,
- maxcount);
-
- if (count == 0) {
- /* no matches */
- return return_self(self);
- }
-
- result_len = self_len - (count * from_len);
- assert (result_len>=0);
-
- if ( (result = (PyByteArrayObject *)
- PyByteArray_FromStringAndSize(NULL, result_len)) == NULL )
- return NULL;
-
- result_s = PyByteArray_AS_STRING(result);
-
- start = self_s;
- end = self_s + self_len;
- while (count-- > 0) {
- offset = findstring(start, end-start,
- from_s, from_len,
- 0, end-start, FORWARD);
- if (offset == -1)
- break;
- next = start + offset;
-
- Py_MEMCPY(result_s, start, next-start);
-
- result_s += (next-start);
- start = next+from_len;
- }
- Py_MEMCPY(result_s, start, end-start);
- return result;
+Py_LOCAL(PyBytesObject *)
+replace_delete_substring(PyBytesObject *self,
+ const char *from_s, Py_ssize_t from_len,
+ Py_ssize_t maxcount) {
+ char *self_s, *result_s;
+ char *start, *next, *end;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count, offset;
+ PyBytesObject *result;
+
+ self_len = PyBytes_GET_SIZE(self);
+ self_s = PyBytes_AS_STRING(self);
+
+ count = countstring(self_s, self_len,
+ from_s, from_len,
+ 0, self_len, 1,
+ maxcount);
+
+ if (count == 0) {
+ /* no matches */
+ return return_self(self);
+ }
+
+ result_len = self_len - (count * from_len);
+ assert (result_len>=0);
+
+ if ( (result = (PyBytesObject *)
+ PyBytes_FromStringAndSize(NULL, result_len)) == NULL )
+ return NULL;
+
+ result_s = PyBytes_AS_STRING(result);
+
+ start = self_s;
+ end = self_s + self_len;
+ while (count-- > 0) {
+ offset = findstring(start, end-start,
+ from_s, from_len,
+ 0, end-start, FORWARD);
+ if (offset == -1)
+ break;
+ next = start + offset;
+
+ Py_MEMCPY(result_s, start, next-start);
+
+ result_s += (next-start);
+ start = next+from_len;
+ }
+ Py_MEMCPY(result_s, start, end-start);
+ return result;
}
/* len(self)>=1, len(from)==len(to)==1, maxcount>=1 */
-Py_LOCAL(PyByteArrayObject *)
-replace_single_character_in_place(PyByteArrayObject *self,
- char from_c, char to_c,
- Py_ssize_t maxcount)
+Py_LOCAL(PyBytesObject *)
+replace_single_character_in_place(PyBytesObject *self,
+ char from_c, char to_c,
+ Py_ssize_t maxcount)
{
- char *self_s, *result_s, *start, *end, *next;
- Py_ssize_t self_len;
- PyByteArrayObject *result;
-
- /* The result string will be the same size */
- self_s = PyByteArray_AS_STRING(self);
- self_len = PyByteArray_GET_SIZE(self);
-
- next = findchar(self_s, self_len, from_c);
-
- if (next == NULL) {
- /* No matches; return the original bytes */
- return return_self(self);
- }
-
- /* Need to make a new bytes */
- result = (PyByteArrayObject *) PyByteArray_FromStringAndSize(NULL, self_len);
- if (result == NULL)
- return NULL;
- result_s = PyByteArray_AS_STRING(result);
- Py_MEMCPY(result_s, self_s, self_len);
-
- /* change everything in-place, starting with this one */
- start = result_s + (next-self_s);
- *start = to_c;
- start++;
- end = result_s + self_len;
-
- while (--maxcount > 0) {
- next = findchar(start, end-start, from_c);
- if (next == NULL)
- break;
- *next = to_c;
- start = next+1;
- }
-
- return result;
+ char *self_s, *result_s, *start, *end, *next;
+ Py_ssize_t self_len;
+ PyBytesObject *result;
+
+ /* The result string will be the same size */
+ self_s = PyBytes_AS_STRING(self);
+ self_len = PyBytes_GET_SIZE(self);
+
+ next = findchar(self_s, self_len, from_c);
+
+ if (next == NULL) {
+ /* No matches; return the original string */
+ return return_self(self);
+ }
+
+ /* Need to make a new string */
+ result = (PyBytesObject *) PyBytes_FromStringAndSize(NULL, self_len);
+ if (result == NULL)
+ return NULL;
+ result_s = PyBytes_AS_STRING(result);
+ Py_MEMCPY(result_s, self_s, self_len);
+
+ /* change everything in-place, starting with this one */
+ start = result_s + (next-self_s);
+ *start = to_c;
+ start++;
+ end = result_s + self_len;
+
+ while (--maxcount > 0) {
+ next = findchar(start, end-start, from_c);
+ if (next == NULL)
+ break;
+ *next = to_c;
+ start = next+1;
+ }
+
+ return result;
}
/* len(self)>=1, len(from)==len(to)>=2, maxcount>=1 */
-Py_LOCAL(PyByteArrayObject *)
-replace_substring_in_place(PyByteArrayObject *self,
- const char *from_s, Py_ssize_t from_len,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount)
-{
- char *result_s, *start, *end;
- char *self_s;
- Py_ssize_t self_len, offset;
- PyByteArrayObject *result;
-
- /* The result bytes will be the same size */
-
- self_s = PyByteArray_AS_STRING(self);
- self_len = PyByteArray_GET_SIZE(self);
-
- offset = findstring(self_s, self_len,
- from_s, from_len,
- 0, self_len, FORWARD);
- if (offset == -1) {
- /* No matches; return the original bytes */
- return return_self(self);
- }
-
- /* Need to make a new bytes */
- result = (PyByteArrayObject *) PyByteArray_FromStringAndSize(NULL, self_len);
- if (result == NULL)
- return NULL;
- result_s = PyByteArray_AS_STRING(result);
- Py_MEMCPY(result_s, self_s, self_len);
-
- /* change everything in-place, starting with this one */
- start = result_s + offset;
- Py_MEMCPY(start, to_s, from_len);
- start += from_len;
- end = result_s + self_len;
-
- while ( --maxcount > 0) {
- offset = findstring(start, end-start,
- from_s, from_len,
- 0, end-start, FORWARD);
- if (offset==-1)
- break;
- Py_MEMCPY(start+offset, to_s, from_len);
- start += offset+from_len;
- }
-
- return result;
+Py_LOCAL(PyBytesObject *)
+replace_substring_in_place(PyBytesObject *self,
+ const char *from_s, Py_ssize_t from_len,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount)
+{
+ char *result_s, *start, *end;
+ char *self_s;
+ Py_ssize_t self_len, offset;
+ PyBytesObject *result;
+
+ /* The result string will be the same size */
+
+ self_s = PyBytes_AS_STRING(self);
+ self_len = PyBytes_GET_SIZE(self);
+
+ offset = findstring(self_s, self_len,
+ from_s, from_len,
+ 0, self_len, FORWARD);
+ if (offset == -1) {
+ /* No matches; return the original string */
+ return return_self(self);
+ }
+
+ /* Need to make a new string */
+ result = (PyBytesObject *) PyBytes_FromStringAndSize(NULL, self_len);
+ if (result == NULL)
+ return NULL;
+ result_s = PyBytes_AS_STRING(result);
+ Py_MEMCPY(result_s, self_s, self_len);
+
+ /* change everything in-place, starting with this one */
+ start = result_s + offset;
+ Py_MEMCPY(start, to_s, from_len);
+ start += from_len;
+ end = result_s + self_len;
+
+ while ( --maxcount > 0) {
+ offset = findstring(start, end-start,
+ from_s, from_len,
+ 0, end-start, FORWARD);
+ if (offset==-1)
+ break;
+ Py_MEMCPY(start+offset, to_s, from_len);
+ start += offset+from_len;
+ }
+
+ return result;
}
/* len(self)>=1, len(from)==1, len(to)>=2, maxcount>=1 */
-Py_LOCAL(PyByteArrayObject *)
-replace_single_character(PyByteArrayObject *self,
- char from_c,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount)
-{
- char *self_s, *result_s;
- char *start, *next, *end;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count, product;
- PyByteArrayObject *result;
-
- self_s = PyByteArray_AS_STRING(self);
- self_len = PyByteArray_GET_SIZE(self);
-
- count = countchar(self_s, self_len, from_c, maxcount);
- if (count == 0) {
- /* no matches, return unchanged */
- return return_self(self);
- }
+Py_LOCAL(PyBytesObject *)
+replace_single_character(PyBytesObject *self,
+ char from_c,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount)
+{
+ char *self_s, *result_s;
+ char *start, *next, *end;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count, product;
+ PyBytesObject *result;
+
+ self_s = PyBytes_AS_STRING(self);
+ self_len = PyBytes_GET_SIZE(self);
+
+ count = countchar(self_s, self_len, from_c, maxcount);
+ if (count == 0) {
+ /* no matches, return unchanged */
+ return return_self(self);
+ }
+
+ /* use the difference between current and new, hence the "-1" */
+ /* result_len = self_len + count * (to_len-1) */
+ product = count * (to_len-1);
+ if (product / (to_len-1) != count) {
+ PyErr_SetString(PyExc_OverflowError, "replace string is too long");
+ return NULL;
+ }
+ result_len = self_len + product;
+ if (result_len < 0) {
+ PyErr_SetString(PyExc_OverflowError, "replace string is too long");
+ return NULL;
+ }
+
+ if ( (result = (PyBytesObject *)
+ PyBytes_FromStringAndSize(NULL, result_len)) == NULL)
+ return NULL;
+ result_s = PyBytes_AS_STRING(result);
+
+ start = self_s;
+ end = self_s + self_len;
+ while (count-- > 0) {
+ next = findchar(start, end-start, from_c);
+ if (next == NULL)
+ break;
+
+ if (next == start) {
+ /* replace with the 'to' */
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ start += 1;
+ } else {
+ /* copy the unchanged old then the 'to' */
+ Py_MEMCPY(result_s, start, next-start);
+ result_s += (next-start);
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ start = next+1;
+ }
+ }
+ /* Copy the remainder of the remaining string */
+ Py_MEMCPY(result_s, start, end-start);
+
+ return result;
+}
- /* use the difference between current and new, hence the "-1" */
- /* result_len = self_len + count * (to_len-1) */
- product = count * (to_len-1);
- if (product / (to_len-1) != count) {
- PyErr_SetString(PyExc_OverflowError, "replace bytes is too long");
- return NULL;
- }
- result_len = self_len + product;
- if (result_len < 0) {
- PyErr_SetString(PyExc_OverflowError, "replace bytes is too long");
- return NULL;
- }
+/* len(self)>=1, len(from)>=2, len(to)>=2, maxcount>=1 */
+Py_LOCAL(PyBytesObject *)
+replace_substring(PyBytesObject *self,
+ const char *from_s, Py_ssize_t from_len,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount) {
+ char *self_s, *result_s;
+ char *start, *next, *end;
+ Py_ssize_t self_len, result_len;
+ Py_ssize_t count, offset, product;
+ PyBytesObject *result;
+
+ self_s = PyBytes_AS_STRING(self);
+ self_len = PyBytes_GET_SIZE(self);
+
+ count = countstring(self_s, self_len,
+ from_s, from_len,
+ 0, self_len, FORWARD, maxcount);
+ if (count == 0) {
+ /* no matches, return unchanged */
+ return return_self(self);
+ }
+
+ /* Check for overflow */
+ /* result_len = self_len + count * (to_len-from_len) */
+ product = count * (to_len-from_len);
+ if (product / (to_len-from_len) != count) {
+ PyErr_SetString(PyExc_OverflowError, "replace string is too long");
+ return NULL;
+ }
+ result_len = self_len + product;
+ if (result_len < 0) {
+ PyErr_SetString(PyExc_OverflowError, "replace string is too long");
+ return NULL;
+ }
+
+ if ( (result = (PyBytesObject *)
+ PyBytes_FromStringAndSize(NULL, result_len)) == NULL)
+ return NULL;
+ result_s = PyBytes_AS_STRING(result);
+
+ start = self_s;
+ end = self_s + self_len;
+ while (count-- > 0) {
+ offset = findstring(start, end-start,
+ from_s, from_len,
+ 0, end-start, FORWARD);
+ if (offset == -1)
+ break;
+ next = start+offset;
+ if (next == start) {
+ /* replace with the 'to' */
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ start += from_len;
+ } else {
+ /* copy the unchanged old then the 'to' */
+ Py_MEMCPY(result_s, start, next-start);
+ result_s += (next-start);
+ Py_MEMCPY(result_s, to_s, to_len);
+ result_s += to_len;
+ start = next+from_len;
+ }
+ }
+ /* Copy the remainder of the remaining string */
+ Py_MEMCPY(result_s, start, end-start);
+
+ return result;
+}
- if ( (result = (PyByteArrayObject *)
- PyByteArray_FromStringAndSize(NULL, result_len)) == NULL)
- return NULL;
- result_s = PyByteArray_AS_STRING(result);
-
- start = self_s;
- end = self_s + self_len;
- while (count-- > 0) {
- next = findchar(start, end-start, from_c);
- if (next == NULL)
- break;
-
- if (next == start) {
- /* replace with the 'to' */
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- start += 1;
- } else {
- /* copy the unchanged old then the 'to' */
- Py_MEMCPY(result_s, start, next-start);
- result_s += (next-start);
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- start = next+1;
- }
- }
- /* Copy the remainder of the remaining bytes */
- Py_MEMCPY(result_s, start, end-start);
- return result;
+Py_LOCAL(PyBytesObject *)
+replace(PyBytesObject *self,
+ const char *from_s, Py_ssize_t from_len,
+ const char *to_s, Py_ssize_t to_len,
+ Py_ssize_t maxcount)
+{
+ if (maxcount < 0) {
+ maxcount = PY_SSIZE_T_MAX;
+ } else if (maxcount == 0 || PyBytes_GET_SIZE(self) == 0) {
+ /* nothing to do; return the original string */
+ return return_self(self);
+ }
+
+ if (maxcount == 0 ||
+ (from_len == 0 && to_len == 0)) {
+ /* nothing to do; return the original string */
+ return return_self(self);
+ }
+
+ /* Handle zero-length special cases */
+
+ if (from_len == 0) {
+ /* insert the 'to' string everywhere. */
+ /* >>> "Python".replace("", ".") */
+ /* '.P.y.t.h.o.n.' */
+ return replace_interleave(self, to_s, to_len, maxcount);
+ }
+
+ /* Except for "".replace("", "A") == "A" there is no way beyond this */
+ /* point for an empty self string to generate a non-empty string */
+ /* Special case so the remaining code always gets a non-empty string */
+ if (PyBytes_GET_SIZE(self) == 0) {
+ return return_self(self);
+ }
+
+ if (to_len == 0) {
+ /* delete all occurances of 'from' string */
+ if (from_len == 1) {
+ return replace_delete_single_character(
+ self, from_s[0], maxcount);
+ } else {
+ return replace_delete_substring(self, from_s, from_len, maxcount);
+ }
+ }
+
+ /* Handle special case where both strings have the same length */
+
+ if (from_len == to_len) {
+ if (from_len == 1) {
+ return replace_single_character_in_place(
+ self,
+ from_s[0],
+ to_s[0],
+ maxcount);
+ } else {
+ return replace_substring_in_place(
+ self, from_s, from_len, to_s, to_len, maxcount);
+ }
+ }
+
+ /* Otherwise use the more generic algorithms */
+ if (from_len == 1) {
+ return replace_single_character(self, from_s[0],
+ to_s, to_len, maxcount);
+ } else {
+ /* len('from')>=2, len('to')>=1 */
+ return replace_substring(self, from_s, from_len, to_s, to_len, maxcount);
+ }
}
-/* len(self)>=1, len(from)>=2, len(to)>=2, maxcount>=1 */
-Py_LOCAL(PyByteArrayObject *)
-replace_substring(PyByteArrayObject *self,
- const char *from_s, Py_ssize_t from_len,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount)
-{
- char *self_s, *result_s;
- char *start, *next, *end;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count, offset, product;
- PyByteArrayObject *result;
-
- self_s = PyByteArray_AS_STRING(self);
- self_len = PyByteArray_GET_SIZE(self);
-
- count = countstring(self_s, self_len,
- from_s, from_len,
- 0, self_len, FORWARD, maxcount);
- if (count == 0) {
- /* no matches, return unchanged */
- return return_self(self);
- }
-
- /* Check for overflow */
- /* result_len = self_len + count * (to_len-from_len) */
- product = count * (to_len-from_len);
- if (product / (to_len-from_len) != count) {
- PyErr_SetString(PyExc_OverflowError, "replace bytes is too long");
- return NULL;
- }
- result_len = self_len + product;
- if (result_len < 0) {
- PyErr_SetString(PyExc_OverflowError, "replace bytes is too long");
- return NULL;
- }
+PyDoc_STRVAR(replace__doc__,
+"S.replace (old, new[, count]) -> string\n\
+\n\
+Return a copy of string S with all occurrences of substring\n\
+old replaced by new. If the optional argument count is\n\
+given, only the first count occurrences are replaced.");
- if ( (result = (PyByteArrayObject *)
- PyByteArray_FromStringAndSize(NULL, result_len)) == NULL)
- return NULL;
- result_s = PyByteArray_AS_STRING(result);
-
- start = self_s;
- end = self_s + self_len;
- while (count-- > 0) {
- offset = findstring(start, end-start,
- from_s, from_len,
- 0, end-start, FORWARD);
- if (offset == -1)
- break;
- next = start+offset;
- if (next == start) {
- /* replace with the 'to' */
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- start += from_len;
- } else {
- /* copy the unchanged old then the 'to' */
- Py_MEMCPY(result_s, start, next-start);
- result_s += (next-start);
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- start = next+from_len;
- }
- }
- /* Copy the remainder of the remaining bytes */
- Py_MEMCPY(result_s, start, end-start);
+static PyObject *
+string_replace(PyBytesObject *self, PyObject *args)
+{
+ Py_ssize_t count = -1;
+ PyObject *from, *to;
+ const char *from_s, *to_s;
+ Py_ssize_t from_len, to_len;
+
+ if (!PyArg_ParseTuple(args, "OO|n:replace", &from, &to, &count))
+ return NULL;
+
+ if (PyBytes_Check(from)) {
+ from_s = PyBytes_AS_STRING(from);
+ from_len = PyBytes_GET_SIZE(from);
+ }
+#ifdef Py_USING_UNICODE
+ if (PyUnicode_Check(from))
+ return PyUnicode_Replace((PyObject *)self,
+ from, to, count);
+#endif
+ else if (PyObject_AsCharBuffer(from, &from_s, &from_len))
+ return NULL;
+
+ if (PyBytes_Check(to)) {
+ to_s = PyBytes_AS_STRING(to);
+ to_len = PyBytes_GET_SIZE(to);
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(to))
+ return PyUnicode_Replace((PyObject *)self,
+ from, to, count);
+#endif
+ else if (PyObject_AsCharBuffer(to, &to_s, &to_len))
+ return NULL;
- return result;
+ return (PyObject *)replace((PyBytesObject *) self,
+ from_s, from_len,
+ to_s, to_len, count);
}
+/** End DALKE **/
-Py_LOCAL(PyByteArrayObject *)
-replace(PyByteArrayObject *self,
- const char *from_s, Py_ssize_t from_len,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount)
+/* Matches the end (direction >= 0) or start (direction < 0) of self
+ * against substr, using the start and end arguments. Returns
+ * -1 on error, 0 if not found and 1 if found.
+ */
+Py_LOCAL(int)
+_string_tailmatch(PyBytesObject *self, PyObject *substr, Py_ssize_t start,
+ Py_ssize_t end, int direction)
{
- if (maxcount < 0) {
- maxcount = PY_SSIZE_T_MAX;
- } else if (maxcount == 0 || PyByteArray_GET_SIZE(self) == 0) {
- /* nothing to do; return the original bytes */
- return return_self(self);
- }
-
- if (maxcount == 0 ||
- (from_len == 0 && to_len == 0)) {
- /* nothing to do; return the original bytes */
- return return_self(self);
- }
+ Py_ssize_t len = PyBytes_GET_SIZE(self);
+ Py_ssize_t slen;
+ const char* sub;
+ const char* str;
+
+ if (PyBytes_Check(substr)) {
+ sub = PyBytes_AS_STRING(substr);
+ slen = PyBytes_GET_SIZE(substr);
+ }
+#ifdef Py_USING_UNICODE
+ else if (PyUnicode_Check(substr))
+ return PyUnicode_Tailmatch((PyObject *)self,
+ substr, start, end, direction);
+#endif
+ else if (PyObject_AsCharBuffer(substr, &sub, &slen))
+ return -1;
+ str = PyBytes_AS_STRING(self);
+
+ string_adjust_indices(&start, &end, len);
+
+ if (direction < 0) {
+ /* startswith */
+ if (start+slen > len)
+ return 0;
+ } else {
+ /* endswith */
+ if (end-start < slen || start > len)
+ return 0;
+
+ if (end-slen > start)
+ start = end - slen;
+ }
+ if (end-start >= slen)
+ return ! memcmp(str+start, sub, slen);
+ return 0;
+}
- /* Handle zero-length special cases */
- if (from_len == 0) {
- /* insert the 'to' bytes everywhere. */
- /* >>> "Python".replace("", ".") */
- /* '.P.y.t.h.o.n.' */
- return replace_interleave(self, to_s, to_len, maxcount);
- }
+PyDoc_STRVAR(startswith__doc__,
+"S.startswith(prefix[, start[, end]]) -> bool\n\
+\n\
+Return True if S starts with the specified prefix, False otherwise.\n\
+With optional start, test S beginning at that position.\n\
+With optional end, stop comparing S at that position.\n\
+prefix can also be a tuple of strings to try.");
- /* Except for "".replace("", "A") == "A" there is no way beyond this */
- /* point for an empty self bytes to generate a non-empty bytes */
- /* Special case so the remaining code always gets a non-empty bytes */
- if (PyByteArray_GET_SIZE(self) == 0) {
- return return_self(self);
- }
+static PyObject *
+string_startswith(PyBytesObject *self, PyObject *args)
+{
+ Py_ssize_t start = 0;
+ Py_ssize_t end = PY_SSIZE_T_MAX;
+ PyObject *subobj;
+ int result;
+
+ if (!PyArg_ParseTuple(args, "O|O&O&:startswith", &subobj,
+ _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ return NULL;
+ if (PyTuple_Check(subobj)) {
+ Py_ssize_t i;
+ for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
+ result = _string_tailmatch(self,
+ PyTuple_GET_ITEM(subobj, i),
+ start, end, -1);
+ if (result == -1)
+ return NULL;
+ else if (result) {
+ Py_RETURN_TRUE;
+ }
+ }
+ Py_RETURN_FALSE;
+ }
+ result = _string_tailmatch(self, subobj, start, end, -1);
+ if (result == -1)
+ return NULL;
+ else
+ return PyBool_FromLong(result);
+}
- if (to_len == 0) {
- /* delete all occurances of 'from' bytes */
- if (from_len == 1) {
- return replace_delete_single_character(
- self, from_s[0], maxcount);
- } else {
- return replace_delete_substring(self, from_s, from_len, maxcount);
- }
- }
- /* Handle special case where both bytes have the same length */
-
- if (from_len == to_len) {
- if (from_len == 1) {
- return replace_single_character_in_place(
- self,
- from_s[0],
- to_s[0],
- maxcount);
- } else {
- return replace_substring_in_place(
- self, from_s, from_len, to_s, to_len, maxcount);
- }
- }
+PyDoc_STRVAR(endswith__doc__,
+"S.endswith(suffix[, start[, end]]) -> bool\n\
+\n\
+Return True if S ends with the specified suffix, False otherwise.\n\
+With optional start, test S beginning at that position.\n\
+With optional end, stop comparing S at that position.\n\
+suffix can also be a tuple of strings to try.");
- /* Otherwise use the more generic algorithms */
- if (from_len == 1) {
- return replace_single_character(self, from_s[0],
- to_s, to_len, maxcount);
- } else {
- /* len('from')>=2, len('to')>=1 */
- return replace_substring(self, from_s, from_len, to_s, to_len, maxcount);
- }
+static PyObject *
+string_endswith(PyBytesObject *self, PyObject *args)
+{
+ Py_ssize_t start = 0;
+ Py_ssize_t end = PY_SSIZE_T_MAX;
+ PyObject *subobj;
+ int result;
+
+ if (!PyArg_ParseTuple(args, "O|O&O&:endswith", &subobj,
+ _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
+ return NULL;
+ if (PyTuple_Check(subobj)) {
+ Py_ssize_t i;
+ for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
+ result = _string_tailmatch(self,
+ PyTuple_GET_ITEM(subobj, i),
+ start, end, +1);
+ if (result == -1)
+ return NULL;
+ else if (result) {
+ Py_RETURN_TRUE;
+ }
+ }
+ Py_RETURN_FALSE;
+ }
+ result = _string_tailmatch(self, subobj, start, end, +1);
+ if (result == -1)
+ return NULL;
+ else
+ return PyBool_FromLong(result);
}
-PyDoc_STRVAR(replace__doc__,
-"B.replace(old, new[, count]) -> bytes\n\
+PyDoc_STRVAR(encode__doc__,
+"S.encode([encoding[,errors]]) -> object\n\
\n\
-Return a copy of B with all occurrences of subsection\n\
-old replaced by new. If the optional argument count is\n\
-given, only the first count occurrences are replaced.");
+Encodes S using the codec registered for encoding. encoding defaults\n\
+to the default encoding. errors may be given to set a different error\n\
+handling scheme. Default is 'strict' meaning that encoding errors raise\n\
+a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and\n\
+'xmlcharrefreplace' as well as any other name registered with\n\
+codecs.register_error that is able to handle UnicodeEncodeErrors.");
static PyObject *
-bytes_replace(PyByteArrayObject *self, PyObject *args)
+string_encode(PyBytesObject *self, PyObject *args)
{
- Py_ssize_t count = -1;
- PyObject *from, *to, *res;
- Py_buffer vfrom, vto;
-
- if (!PyArg_ParseTuple(args, "OO|n:replace", &from, &to, &count))
- return NULL;
+ char *encoding = NULL;
+ char *errors = NULL;
+ PyObject *v;
- if (_getbuffer(from, &vfrom) < 0)
+ if (!PyArg_ParseTuple(args, "|ss:encode", &encoding, &errors))
return NULL;
- if (_getbuffer(to, &vto) < 0) {
- PyObject_ReleaseBuffer(from, &vfrom);
+ v = PyBytes_AsEncodedObject((PyObject *)self, encoding, errors);
+ if (v == NULL)
+ goto onError;
+ if (!PyBytes_Check(v) && !PyUnicode_Check(v)) {
+ PyErr_Format(PyExc_TypeError,
+ "encoder did not return a string/unicode object "
+ "(type=%.400s)",
+ Py_TYPE(v)->tp_name);
+ Py_DECREF(v);
return NULL;
}
+ return v;
- res = (PyObject *)replace((PyByteArrayObject *) self,
- vfrom.buf, vfrom.len,
- vto.buf, vto.len, count);
-
- PyObject_ReleaseBuffer(from, &vfrom);
- PyObject_ReleaseBuffer(to, &vto);
- return res;
+ onError:
+ return NULL;
}
-/* Overallocate the initial list to reduce the number of reallocs for small
- split sizes. Eg, "A A A A A A A A A A".split() (10 elements) has three
- resizes, to sizes 4, 8, then 16. Most observed string splits are for human
- text (roughly 11 words per line) and field delimited data (usually 1-10
- fields). For large strings the split algorithms are bandwidth limited
- so increasing the preallocation likely will not improve things.*/
+PyDoc_STRVAR(decode__doc__,
+"S.decode([encoding[,errors]]) -> object\n\
+\n\
+Decodes S using the codec registered for encoding. encoding defaults\n\
+to the default encoding. errors may be given to set a different error\n\
+handling scheme. Default is 'strict' meaning that encoding errors raise\n\
+a UnicodeDecodeError. Other possible values are 'ignore' and 'replace'\n\
+as well as any other name registerd with codecs.register_error that is\n\
+able to handle UnicodeDecodeErrors.");
-#define MAX_PREALLOC 12
+static PyObject *
+string_decode(PyBytesObject *self, PyObject *args)
+{
+ char *encoding = NULL;
+ char *errors = NULL;
+ PyObject *v;
-/* 5 splits gives 6 elements */
-#define PREALLOC_SIZE(maxsplit) \
- (maxsplit >= MAX_PREALLOC ? MAX_PREALLOC : maxsplit+1)
-
-#define SPLIT_APPEND(data, left, right) \
- str = PyByteArray_FromStringAndSize((data) + (left), \
- (right) - (left)); \
- if (str == NULL) \
- goto onError; \
- if (PyList_Append(list, str)) { \
- Py_DECREF(str); \
- goto onError; \
- } \
- else \
- Py_DECREF(str);
-
-#define SPLIT_ADD(data, left, right) { \
- str = PyByteArray_FromStringAndSize((data) + (left), \
- (right) - (left)); \
- if (str == NULL) \
- goto onError; \
- if (count < MAX_PREALLOC) { \
- PyList_SET_ITEM(list, count, str); \
- } else { \
- if (PyList_Append(list, str)) { \
- Py_DECREF(str); \
- goto onError; \
- } \
- else \
- Py_DECREF(str); \
- } \
- count++; }
+ if (!PyArg_ParseTuple(args, "|ss:decode", &encoding, &errors))
+ return NULL;
+ v = PyBytes_AsDecodedObject((PyObject *)self, encoding, errors);
+ if (v == NULL)
+ goto onError;
+ if (!PyBytes_Check(v) && !PyUnicode_Check(v)) {
+ PyErr_Format(PyExc_TypeError,
+ "decoder did not return a string/unicode object "
+ "(type=%.400s)",
+ Py_TYPE(v)->tp_name);
+ Py_DECREF(v);
+ return NULL;
+ }
+ return v;
-/* Always force the list to the expected size. */
-#define FIX_PREALLOC_SIZE(list) Py_SIZE(list) = count
+ onError:
+ return NULL;
+}
-Py_LOCAL_INLINE(PyObject *)
-split_char(const char *s, Py_ssize_t len, char ch, Py_ssize_t maxcount)
+PyDoc_STRVAR(expandtabs__doc__,
+"S.expandtabs([tabsize]) -> string\n\
+\n\
+Return a copy of S where all tab characters are expanded using spaces.\n\
+If tabsize is not given, a tab size of 8 characters is assumed.");
+
+static PyObject*
+string_expandtabs(PyBytesObject *self, PyObject *args)
{
- register Py_ssize_t i, j, count = 0;
- PyObject *str;
- PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+ const char *e, *p, *qe;
+ char *q;
+ Py_ssize_t i, j, incr;
+ PyObject *u;
+ int tabsize = 8;
+
+ if (!PyArg_ParseTuple(args, "|i:expandtabs", &tabsize))
+ return NULL;
+
+ /* First pass: determine size of output string */
+ i = 0; /* chars up to and including most recent \n or \r */
+ j = 0; /* chars since most recent \n or \r (use in tab calculations) */
+ e = PyBytes_AS_STRING(self) + PyBytes_GET_SIZE(self); /* end of input */
+ for (p = PyBytes_AS_STRING(self); p < e; p++)
+ if (*p == '\t') {
+ if (tabsize > 0) {
+ incr = tabsize - (j % tabsize);
+ if (j > PY_SSIZE_T_MAX - incr)
+ goto overflow1;
+ j += incr;
+ }
+ }
+ else {
+ if (j > PY_SSIZE_T_MAX - 1)
+ goto overflow1;
+ j++;
+ if (*p == '\n' || *p == '\r') {
+ if (i > PY_SSIZE_T_MAX - j)
+ goto overflow1;
+ i += j;
+ j = 0;
+ }
+ }
- if (list == NULL)
+ if (i > PY_SSIZE_T_MAX - j)
+ goto overflow1;
+
+ /* Second pass: create output string and fill it */
+ u = PyBytes_FromStringAndSize(NULL, i + j);
+ if (!u)
return NULL;
- i = j = 0;
- while ((j < len) && (maxcount-- > 0)) {
- for(; j < len; j++) {
- /* I found that using memchr makes no difference */
- if (s[j] == ch) {
- SPLIT_ADD(s, i, j);
- i = j = j + 1;
- break;
- }
+ j = 0; /* same as in first pass */
+ q = PyBytes_AS_STRING(u); /* next output char */
+ qe = PyBytes_AS_STRING(u) + PyBytes_GET_SIZE(u); /* end of output */
+
+ for (p = PyBytes_AS_STRING(self); p < e; p++)
+ if (*p == '\t') {
+ if (tabsize > 0) {
+ i = tabsize - (j % tabsize);
+ j += i;
+ while (i--) {
+ if (q >= qe)
+ goto overflow2;
+ *q++ = ' ';
+ }
+ }
+ }
+ else {
+ if (q >= qe)
+ goto overflow2;
+ *q++ = *p;
+ j++;
+ if (*p == '\n' || *p == '\r')
+ j = 0;
}
- }
- if (i <= len) {
- SPLIT_ADD(s, i, len);
- }
- FIX_PREALLOC_SIZE(list);
- return list;
- onError:
- Py_DECREF(list);
+ return u;
+
+ overflow2:
+ Py_DECREF(u);
+ overflow1:
+ PyErr_SetString(PyExc_OverflowError, "new string is too long");
return NULL;
}
-
Py_LOCAL_INLINE(PyObject *)
-split_whitespace(const char *s, Py_ssize_t len, Py_ssize_t maxcount)
+pad(PyBytesObject *self, Py_ssize_t left, Py_ssize_t right, char fill)
{
- register Py_ssize_t i, j, count = 0;
- PyObject *str;
- PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+ PyObject *u;
- if (list == NULL)
- return NULL;
+ if (left < 0)
+ left = 0;
+ if (right < 0)
+ right = 0;
- for (i = j = 0; i < len; ) {
- /* find a token */
- while (i < len && ISSPACE(s[i]))
- i++;
- j = i;
- while (i < len && !ISSPACE(s[i]))
- i++;
- if (j < i) {
- if (maxcount-- <= 0)
- break;
- SPLIT_ADD(s, j, i);
- while (i < len && ISSPACE(s[i]))
- i++;
- j = i;
- }
+ if (left == 0 && right == 0 && PyBytes_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyObject *)self;
}
- if (j < len) {
- SPLIT_ADD(s, j, len);
+
+ u = PyBytes_FromStringAndSize(NULL,
+ left + PyBytes_GET_SIZE(self) + right);
+ if (u) {
+ if (left)
+ memset(PyBytes_AS_STRING(u), fill, left);
+ Py_MEMCPY(PyBytes_AS_STRING(u) + left,
+ PyBytes_AS_STRING(self),
+ PyBytes_GET_SIZE(self));
+ if (right)
+ memset(PyBytes_AS_STRING(u) + left + PyBytes_GET_SIZE(self),
+ fill, right);
}
- FIX_PREALLOC_SIZE(list);
- return list;
- onError:
- Py_DECREF(list);
- return NULL;
+ return u;
}
-PyDoc_STRVAR(split__doc__,
-"B.split([sep[, maxsplit]]) -> list of bytearray\n\
-\n\
-Return a list of the sections in B, using sep as the delimiter.\n\
-If sep is not given, B is split on ASCII whitespace characters\n\
-(space, tab, return, newline, formfeed, vertical tab).\n\
-If maxsplit is given, at most maxsplit splits are done.");
+PyDoc_STRVAR(ljust__doc__,
+"S.ljust(width[, fillchar]) -> string\n"
+"\n"
+"Return S left justified in a string of length width. Padding is\n"
+"done using the specified fill character (default is a space).");
static PyObject *
-bytes_split(PyByteArrayObject *self, PyObject *args)
+string_ljust(PyBytesObject *self, PyObject *args)
{
- Py_ssize_t len = PyByteArray_GET_SIZE(self), n, i, j;
- Py_ssize_t maxsplit = -1, count = 0;
- const char *s = PyByteArray_AS_STRING(self), *sub;
- PyObject *list, *str, *subobj = Py_None;
- Py_buffer vsub;
-#ifdef USE_FAST
- Py_ssize_t pos;
-#endif
+ Py_ssize_t width;
+ char fillchar = ' ';
- if (!PyArg_ParseTuple(args, "|On:split", &subobj, &maxsplit))
+ if (!PyArg_ParseTuple(args, "n|c:ljust", &width, &fillchar))
return NULL;
- if (maxsplit < 0)
- maxsplit = PY_SSIZE_T_MAX;
-
- if (subobj == Py_None)
- return split_whitespace(s, len, maxsplit);
- if (_getbuffer(subobj, &vsub) < 0)
- return NULL;
- sub = vsub.buf;
- n = vsub.len;
-
- if (n == 0) {
- PyErr_SetString(PyExc_ValueError, "empty separator");
- PyObject_ReleaseBuffer(subobj, &vsub);
- return NULL;
- }
- if (n == 1)
- return split_char(s, len, sub[0], maxsplit);
-
- list = PyList_New(PREALLOC_SIZE(maxsplit));
- if (list == NULL) {
- PyObject_ReleaseBuffer(subobj, &vsub);
- return NULL;
- }
-
-#ifdef USE_FAST
- i = j = 0;
- while (maxsplit-- > 0) {
- pos = fastsearch(s+i, len-i, sub, n, FAST_SEARCH);
- if (pos < 0)
- break;
- j = i+pos;
- SPLIT_ADD(s, i, j);
- i = j + n;
- }
-#else
- i = j = 0;
- while ((j+n <= len) && (maxsplit-- > 0)) {
- for (; j+n <= len; j++) {
- if (Py_STRING_MATCH(s, j, sub, n)) {
- SPLIT_ADD(s, i, j);
- i = j = j + n;
- break;
- }
- }
+ if (PyBytes_GET_SIZE(self) >= width && PyBytes_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyObject*) self;
}
-#endif
- SPLIT_ADD(s, i, len);
- FIX_PREALLOC_SIZE(list);
- PyObject_ReleaseBuffer(subobj, &vsub);
- return list;
- onError:
- Py_DECREF(list);
- PyObject_ReleaseBuffer(subobj, &vsub);
- return NULL;
+ return pad(self, 0, width - PyBytes_GET_SIZE(self), fillchar);
}
-/* stringlib's partition shares nullbytes in some cases.
- undo this, we don't want the nullbytes to be shared. */
-static PyObject *
-make_nullbytes_unique(PyObject *result)
-{
- if (result != NULL) {
- int i;
- assert(PyTuple_Check(result));
- assert(PyTuple_GET_SIZE(result) == 3);
- for (i = 0; i < 3; i++) {
- if (PyTuple_GET_ITEM(result, i) == (PyObject *)nullbytes) {
- PyObject *new = PyByteArray_FromStringAndSize(NULL, 0);
- if (new == NULL) {
- Py_DECREF(result);
- result = NULL;
- break;
- }
- Py_DECREF(nullbytes);
- PyTuple_SET_ITEM(result, i, new);
- }
- }
- }
- return result;
-}
-PyDoc_STRVAR(partition__doc__,
-"B.partition(sep) -> (head, sep, tail)\n\
-\n\
-Searches for the separator sep in B, and returns the part before it,\n\
-the separator itself, and the part after it. If the separator is not\n\
-found, returns B and two empty bytearray objects.");
+PyDoc_STRVAR(rjust__doc__,
+"S.rjust(width[, fillchar]) -> string\n"
+"\n"
+"Return S right justified in a string of length width. Padding is\n"
+"done using the specified fill character (default is a space)");
static PyObject *
-bytes_partition(PyByteArrayObject *self, PyObject *sep_obj)
+string_rjust(PyBytesObject *self, PyObject *args)
{
- PyObject *bytesep, *result;
+ Py_ssize_t width;
+ char fillchar = ' ';
- bytesep = PyByteArray_FromObject(sep_obj);
- if (! bytesep)
+ if (!PyArg_ParseTuple(args, "n|c:rjust", &width, &fillchar))
return NULL;
- result = stringlib_partition(
- (PyObject*) self,
- PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self),
- bytesep,
- PyByteArray_AS_STRING(bytesep), PyByteArray_GET_SIZE(bytesep)
- );
+ if (PyBytes_GET_SIZE(self) >= width && PyBytes_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyObject*) self;
+ }
- Py_DECREF(bytesep);
- return make_nullbytes_unique(result);
+ return pad(self, width - PyBytes_GET_SIZE(self), 0, fillchar);
}
-PyDoc_STRVAR(rpartition__doc__,
-"B.rpartition(sep) -> (tail, sep, head)\n\
-\n\
-Searches for the separator sep in B, starting at the end of B,\n\
-and returns the part before it, the separator itself, and the\n\
-part after it. If the separator is not found, returns two empty\n\
-bytearray objects and B.");
+
+PyDoc_STRVAR(center__doc__,
+"S.center(width[, fillchar]) -> string\n"
+"\n"
+"Return S centered in a string of length width. Padding is\n"
+"done using the specified fill character (default is a space)");
static PyObject *
-bytes_rpartition(PyByteArrayObject *self, PyObject *sep_obj)
+string_center(PyBytesObject *self, PyObject *args)
{
- PyObject *bytesep, *result;
+ Py_ssize_t marg, left;
+ Py_ssize_t width;
+ char fillchar = ' ';
- bytesep = PyByteArray_FromObject(sep_obj);
- if (! bytesep)
+ if (!PyArg_ParseTuple(args, "n|c:center", &width, &fillchar))
return NULL;
- result = stringlib_rpartition(
- (PyObject*) self,
- PyByteArray_AS_STRING(self), PyByteArray_GET_SIZE(self),
- bytesep,
- PyByteArray_AS_STRING(bytesep), PyByteArray_GET_SIZE(bytesep)
- );
+ if (PyBytes_GET_SIZE(self) >= width && PyBytes_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyObject*) self;
+ }
+
+ marg = width - PyBytes_GET_SIZE(self);
+ left = marg / 2 + (marg & width & 1);
- Py_DECREF(bytesep);
- return make_nullbytes_unique(result);
+ return pad(self, left, marg - left, fillchar);
}
-Py_LOCAL_INLINE(PyObject *)
-rsplit_char(const char *s, Py_ssize_t len, char ch, Py_ssize_t maxcount)
+PyDoc_STRVAR(zfill__doc__,
+"S.zfill(width) -> string\n"
+"\n"
+"Pad a numeric string S with zeros on the left, to fill a field\n"
+"of the specified width. The string S is never truncated.");
+
+static PyObject *
+string_zfill(PyBytesObject *self, PyObject *args)
{
- register Py_ssize_t i, j, count=0;
- PyObject *str;
- PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+ Py_ssize_t fill;
+ PyObject *s;
+ char *p;
+ Py_ssize_t width;
- if (list == NULL)
+ if (!PyArg_ParseTuple(args, "n:zfill", &width))
return NULL;
- i = j = len - 1;
- while ((i >= 0) && (maxcount-- > 0)) {
- for (; i >= 0; i--) {
- if (s[i] == ch) {
- SPLIT_ADD(s, i + 1, j + 1);
- j = i = i - 1;
- break;
- }
+ if (PyBytes_GET_SIZE(self) >= width) {
+ if (PyBytes_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyObject*) self;
}
+ else
+ return PyBytes_FromStringAndSize(
+ PyBytes_AS_STRING(self),
+ PyBytes_GET_SIZE(self)
+ );
}
- if (j >= -1) {
- SPLIT_ADD(s, 0, j + 1);
- }
- FIX_PREALLOC_SIZE(list);
- if (PyList_Reverse(list) < 0)
- goto onError;
- return list;
-
- onError:
- Py_DECREF(list);
- return NULL;
-}
+ fill = width - PyBytes_GET_SIZE(self);
-Py_LOCAL_INLINE(PyObject *)
-rsplit_whitespace(const char *s, Py_ssize_t len, Py_ssize_t maxcount)
-{
- register Py_ssize_t i, j, count = 0;
- PyObject *str;
- PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
+ s = pad(self, fill, 0, '0');
- if (list == NULL)
+ if (s == NULL)
return NULL;
- for (i = j = len - 1; i >= 0; ) {
- /* find a token */
- while (i >= 0 && ISSPACE(s[i]))
- i--;
- j = i;
- while (i >= 0 && !ISSPACE(s[i]))
- i--;
- if (j > i) {
- if (maxcount-- <= 0)
- break;
- SPLIT_ADD(s, i + 1, j + 1);
- while (i >= 0 && ISSPACE(s[i]))
- i--;
- j = i;
- }
- }
- if (j >= 0) {
- SPLIT_ADD(s, 0, j + 1);
+ p = PyBytes_AS_STRING(s);
+ if (p[fill] == '+' || p[fill] == '-') {
+ /* move sign to beginning of string */
+ p[0] = p[fill];
+ p[fill] = '0';
}
- FIX_PREALLOC_SIZE(list);
- if (PyList_Reverse(list) < 0)
- goto onError;
- return list;
-
- onError:
- Py_DECREF(list);
- return NULL;
+ return (PyObject*) s;
}
-PyDoc_STRVAR(rsplit__doc__,
-"B.rsplit(sep[, maxsplit]) -> list of bytearray\n\
+PyDoc_STRVAR(isspace__doc__,
+"S.isspace() -> bool\n\
\n\
-Return a list of the sections in B, using sep as the delimiter,\n\
-starting at the end of B and working to the front.\n\
-If sep is not given, B is split on ASCII whitespace characters\n\
-(space, tab, return, newline, formfeed, vertical tab).\n\
-If maxsplit is given, at most maxsplit splits are done.");
+Return True if all characters in S are whitespace\n\
+and there is at least one character in S, False otherwise.");
-static PyObject *
-bytes_rsplit(PyByteArrayObject *self, PyObject *args)
+static PyObject*
+string_isspace(PyBytesObject *self)
{
- Py_ssize_t len = PyByteArray_GET_SIZE(self), n, i, j;
- Py_ssize_t maxsplit = -1, count = 0;
- const char *s = PyByteArray_AS_STRING(self), *sub;
- PyObject *list, *str, *subobj = Py_None;
- Py_buffer vsub;
-
- if (!PyArg_ParseTuple(args, "|On:rsplit", &subobj, &maxsplit))
- return NULL;
- if (maxsplit < 0)
- maxsplit = PY_SSIZE_T_MAX;
+ register const unsigned char *p
+ = (unsigned char *) PyBytes_AS_STRING(self);
+ register const unsigned char *e;
- if (subobj == Py_None)
- return rsplit_whitespace(s, len, maxsplit);
+ /* Shortcut for single character strings */
+ if (PyBytes_GET_SIZE(self) == 1 &&
+ isspace(*p))
+ return PyBool_FromLong(1);
- if (_getbuffer(subobj, &vsub) < 0)
- return NULL;
- sub = vsub.buf;
- n = vsub.len;
+ /* Special case for empty strings */
+ if (PyBytes_GET_SIZE(self) == 0)
+ return PyBool_FromLong(0);
- if (n == 0) {
- PyErr_SetString(PyExc_ValueError, "empty separator");
- PyObject_ReleaseBuffer(subobj, &vsub);
- return NULL;
+ e = p + PyBytes_GET_SIZE(self);
+ for (; p < e; p++) {
+ if (!isspace(*p))
+ return PyBool_FromLong(0);
}
- else if (n == 1)
- return rsplit_char(s, len, sub[0], maxsplit);
-
- list = PyList_New(PREALLOC_SIZE(maxsplit));
- if (list == NULL) {
- PyObject_ReleaseBuffer(subobj, &vsub);
- return NULL;
- }
-
- j = len;
- i = j - n;
-
- while ( (i >= 0) && (maxsplit-- > 0) ) {
- for (; i>=0; i--) {
- if (Py_STRING_MATCH(s, i, sub, n)) {
- SPLIT_ADD(s, i + n, j);
- j = i;
- i -= n;
- break;
- }
- }
- }
- SPLIT_ADD(s, 0, j);
- FIX_PREALLOC_SIZE(list);
- if (PyList_Reverse(list) < 0)
- goto onError;
- PyObject_ReleaseBuffer(subobj, &vsub);
- return list;
-
-onError:
- Py_DECREF(list);
- PyObject_ReleaseBuffer(subobj, &vsub);
- return NULL;
+ return PyBool_FromLong(1);
}
-PyDoc_STRVAR(reverse__doc__,
-"B.reverse() -> None\n\
-\n\
-Reverse the order of the values in B in place.");
-static PyObject *
-bytes_reverse(PyByteArrayObject *self, PyObject *unused)
-{
- char swap, *head, *tail;
- Py_ssize_t i, j, n = Py_SIZE(self);
-
- j = n / 2;
- head = self->ob_bytes;
- tail = head + n - 1;
- for (i = 0; i < j; i++) {
- swap = *head;
- *head++ = *tail;
- *tail-- = swap;
- }
- Py_RETURN_NONE;
-}
-
-PyDoc_STRVAR(insert__doc__,
-"B.insert(index, int) -> None\n\
+PyDoc_STRVAR(isalpha__doc__,
+"S.isalpha() -> bool\n\
\n\
-Insert a single item into the bytearray before the given index.");
-static PyObject *
-bytes_insert(PyByteArrayObject *self, PyObject *args)
+Return True if all characters in S are alphabetic\n\
+and there is at least one character in S, False otherwise.");
+
+static PyObject*
+string_isalpha(PyBytesObject *self)
{
- int value;
- Py_ssize_t where, n = Py_SIZE(self);
+ register const unsigned char *p
+ = (unsigned char *) PyBytes_AS_STRING(self);
+ register const unsigned char *e;
- if (!PyArg_ParseTuple(args, "ni:insert", &where, &value))
- return NULL;
+ /* Shortcut for single character strings */
+ if (PyBytes_GET_SIZE(self) == 1 &&
+ isalpha(*p))
+ return PyBool_FromLong(1);
- if (n == PY_SSIZE_T_MAX) {
- PyErr_SetString(PyExc_OverflowError,
- "cannot add more objects to bytes");
- return NULL;
- }
- if (value < 0 || value >= 256) {
- PyErr_SetString(PyExc_ValueError,
- "byte must be in range(0, 256)");
- return NULL;
- }
- if (PyByteArray_Resize((PyObject *)self, n + 1) < 0)
- return NULL;
+ /* Special case for empty strings */
+ if (PyBytes_GET_SIZE(self) == 0)
+ return PyBool_FromLong(0);
- if (where < 0) {
- where += n;
- if (where < 0)
- where = 0;
+ e = p + PyBytes_GET_SIZE(self);
+ for (; p < e; p++) {
+ if (!isalpha(*p))
+ return PyBool_FromLong(0);
}
- if (where > n)
- where = n;
- memmove(self->ob_bytes + where + 1, self->ob_bytes + where, n - where);
- self->ob_bytes[where] = value;
-
- Py_RETURN_NONE;
+ return PyBool_FromLong(1);
}
-PyDoc_STRVAR(append__doc__,
-"B.append(int) -> None\n\
+
+PyDoc_STRVAR(isalnum__doc__,
+"S.isalnum() -> bool\n\
\n\
-Append a single item to the end of B.");
-static PyObject *
-bytes_append(PyByteArrayObject *self, PyObject *arg)
+Return True if all characters in S are alphanumeric\n\
+and there is at least one character in S, False otherwise.");
+
+static PyObject*
+string_isalnum(PyBytesObject *self)
{
- int value;
- Py_ssize_t n = Py_SIZE(self);
+ register const unsigned char *p
+ = (unsigned char *) PyBytes_AS_STRING(self);
+ register const unsigned char *e;
- if (! _getbytevalue(arg, &value))
- return NULL;
- if (n == PY_SSIZE_T_MAX) {
- PyErr_SetString(PyExc_OverflowError,
- "cannot add more objects to bytes");
- return NULL;
- }
- if (PyByteArray_Resize((PyObject *)self, n + 1) < 0)
- return NULL;
+ /* Shortcut for single character strings */
+ if (PyBytes_GET_SIZE(self) == 1 &&
+ isalnum(*p))
+ return PyBool_FromLong(1);
- self->ob_bytes[n] = value;
+ /* Special case for empty strings */
+ if (PyBytes_GET_SIZE(self) == 0)
+ return PyBool_FromLong(0);
- Py_RETURN_NONE;
+ e = p + PyBytes_GET_SIZE(self);
+ for (; p < e; p++) {
+ if (!isalnum(*p))
+ return PyBool_FromLong(0);
+ }
+ return PyBool_FromLong(1);
}
-PyDoc_STRVAR(extend__doc__,
-"B.extend(iterable int) -> None\n\
-\n\
-Append all the elements from the iterator or sequence to the\n\
-end of B.");
-static PyObject *
-bytes_extend(PyByteArrayObject *self, PyObject *arg)
-{
- PyObject *it, *item, *bytes_obj;
- Py_ssize_t buf_size = 0, len = 0;
- int value;
- char *buf;
- /* bytes_setslice code only accepts something supporting PEP 3118. */
- if (PyObject_CheckBuffer(arg)) {
- if (bytes_setslice(self, Py_SIZE(self), Py_SIZE(self), arg) == -1)
- return NULL;
+PyDoc_STRVAR(isdigit__doc__,
+"S.isdigit() -> bool\n\
+\n\
+Return True if all characters in S are digits\n\
+and there is at least one character in S, False otherwise.");
- Py_RETURN_NONE;
- }
+static PyObject*
+string_isdigit(PyBytesObject *self)
+{
+ register const unsigned char *p
+ = (unsigned char *) PyBytes_AS_STRING(self);
+ register const unsigned char *e;
- it = PyObject_GetIter(arg);
- if (it == NULL)
- return NULL;
+ /* Shortcut for single character strings */
+ if (PyBytes_GET_SIZE(self) == 1 &&
+ isdigit(*p))
+ return PyBool_FromLong(1);
- /* Try to determine the length of the argument. 32 is abitrary. */
- buf_size = _PyObject_LengthHint(arg, 32);
+ /* Special case for empty strings */
+ if (PyBytes_GET_SIZE(self) == 0)
+ return PyBool_FromLong(0);
- bytes_obj = PyByteArray_FromStringAndSize(NULL, buf_size);
- if (bytes_obj == NULL)
- return NULL;
- buf = PyByteArray_AS_STRING(bytes_obj);
-
- while ((item = PyIter_Next(it)) != NULL) {
- if (! _getbytevalue(item, &value)) {
- Py_DECREF(item);
- Py_DECREF(it);
- Py_DECREF(bytes_obj);
- return NULL;
- }
- buf[len++] = value;
- Py_DECREF(item);
-
- if (len >= buf_size) {
- buf_size = len + (len >> 1) + 1;
- if (PyByteArray_Resize((PyObject *)bytes_obj, buf_size) < 0) {
- Py_DECREF(it);
- Py_DECREF(bytes_obj);
- return NULL;
- }
- /* Recompute the `buf' pointer, since the resizing operation may
- have invalidated it. */
- buf = PyByteArray_AS_STRING(bytes_obj);
- }
+ e = p + PyBytes_GET_SIZE(self);
+ for (; p < e; p++) {
+ if (!isdigit(*p))
+ return PyBool_FromLong(0);
}
- Py_DECREF(it);
+ return PyBool_FromLong(1);
+}
- /* Resize down to exact size. */
- if (PyByteArray_Resize((PyObject *)bytes_obj, len) < 0) {
- Py_DECREF(bytes_obj);
- return NULL;
- }
- if (bytes_setslice(self, Py_SIZE(self), Py_SIZE(self), bytes_obj) == -1)
- return NULL;
- Py_DECREF(bytes_obj);
+PyDoc_STRVAR(islower__doc__,
+"S.islower() -> bool\n\
+\n\
+Return True if all cased characters in S are lowercase and there is\n\
+at least one cased character in S, False otherwise.");
- Py_RETURN_NONE;
+static PyObject*
+string_islower(PyBytesObject *self)
+{
+ register const unsigned char *p
+ = (unsigned char *) PyBytes_AS_STRING(self);
+ register const unsigned char *e;
+ int cased;
+
+ /* Shortcut for single character strings */
+ if (PyBytes_GET_SIZE(self) == 1)
+ return PyBool_FromLong(islower(*p) != 0);
+
+ /* Special case for empty strings */
+ if (PyBytes_GET_SIZE(self) == 0)
+ return PyBool_FromLong(0);
+
+ e = p + PyBytes_GET_SIZE(self);
+ cased = 0;
+ for (; p < e; p++) {
+ if (isupper(*p))
+ return PyBool_FromLong(0);
+ else if (!cased && islower(*p))
+ cased = 1;
+ }
+ return PyBool_FromLong(cased);
}
-PyDoc_STRVAR(pop__doc__,
-"B.pop([index]) -> int\n\
+
+PyDoc_STRVAR(isupper__doc__,
+"S.isupper() -> bool\n\
\n\
-Remove and return a single item from B. If no index\n\
-argument is give, will pop the last value.");
-static PyObject *
-bytes_pop(PyByteArrayObject *self, PyObject *args)
+Return True if all cased characters in S are uppercase and there is\n\
+at least one cased character in S, False otherwise.");
+
+static PyObject*
+string_isupper(PyBytesObject *self)
{
- int value;
- Py_ssize_t where = -1, n = Py_SIZE(self);
+ register const unsigned char *p
+ = (unsigned char *) PyBytes_AS_STRING(self);
+ register const unsigned char *e;
+ int cased;
+
+ /* Shortcut for single character strings */
+ if (PyBytes_GET_SIZE(self) == 1)
+ return PyBool_FromLong(isupper(*p) != 0);
+
+ /* Special case for empty strings */
+ if (PyBytes_GET_SIZE(self) == 0)
+ return PyBool_FromLong(0);
+
+ e = p + PyBytes_GET_SIZE(self);
+ cased = 0;
+ for (; p < e; p++) {
+ if (islower(*p))
+ return PyBool_FromLong(0);
+ else if (!cased && isupper(*p))
+ cased = 1;
+ }
+ return PyBool_FromLong(cased);
+}
- if (!PyArg_ParseTuple(args, "|n:pop", &where))
- return NULL;
- if (n == 0) {
- PyErr_SetString(PyExc_OverflowError,
- "cannot pop an empty bytes");
- return NULL;
- }
- if (where < 0)
- where += Py_SIZE(self);
- if (where < 0 || where >= Py_SIZE(self)) {
- PyErr_SetString(PyExc_IndexError, "pop index out of range");
- return NULL;
- }
-
- value = self->ob_bytes[where];
- memmove(self->ob_bytes + where, self->ob_bytes + where + 1, n - where);
- if (PyByteArray_Resize((PyObject *)self, n - 1) < 0)
- return NULL;
+PyDoc_STRVAR(istitle__doc__,
+"S.istitle() -> bool\n\
+\n\
+Return True if S is a titlecased string and there is at least one\n\
+character in S, i.e. uppercase characters may only follow uncased\n\
+characters and lowercase characters only cased ones. Return False\n\
+otherwise.");
- return PyInt_FromLong(value);
+static PyObject*
+string_istitle(PyBytesObject *self, PyObject *uncased)
+{
+ register const unsigned char *p
+ = (unsigned char *) PyBytes_AS_STRING(self);
+ register const unsigned char *e;
+ int cased, previous_is_cased;
+
+ /* Shortcut for single character strings */
+ if (PyBytes_GET_SIZE(self) == 1)
+ return PyBool_FromLong(isupper(*p) != 0);
+
+ /* Special case for empty strings */
+ if (PyBytes_GET_SIZE(self) == 0)
+ return PyBool_FromLong(0);
+
+ e = p + PyBytes_GET_SIZE(self);
+ cased = 0;
+ previous_is_cased = 0;
+ for (; p < e; p++) {
+ register const unsigned char ch = *p;
+
+ if (isupper(ch)) {
+ if (previous_is_cased)
+ return PyBool_FromLong(0);
+ previous_is_cased = 1;
+ cased = 1;
+ }
+ else if (islower(ch)) {
+ if (!previous_is_cased)
+ return PyBool_FromLong(0);
+ previous_is_cased = 1;
+ cased = 1;
+ }
+ else
+ previous_is_cased = 0;
+ }
+ return PyBool_FromLong(cased);
}
-PyDoc_STRVAR(remove__doc__,
-"B.remove(int) -> None\n\
+
+PyDoc_STRVAR(splitlines__doc__,
+"S.splitlines([keepends]) -> list of strings\n\
\n\
-Remove the first occurance of a value in B.");
-static PyObject *
-bytes_remove(PyByteArrayObject *self, PyObject *arg)
+Return a list of the lines in S, breaking at line boundaries.\n\
+Line breaks are not included in the resulting list unless keepends\n\
+is given and true.");
+
+static PyObject*
+string_splitlines(PyBytesObject *self, PyObject *args)
{
- int value;
- Py_ssize_t where, n = Py_SIZE(self);
+ register Py_ssize_t i;
+ register Py_ssize_t j;
+ Py_ssize_t len;
+ int keepends = 0;
+ PyObject *list;
+ PyObject *str;
+ char *data;
- if (! _getbytevalue(arg, &value))
+ if (!PyArg_ParseTuple(args, "|i:splitlines", &keepends))
return NULL;
- for (where = 0; where < n; where++) {
- if (self->ob_bytes[where] == value)
- break;
+ data = PyBytes_AS_STRING(self);
+ len = PyBytes_GET_SIZE(self);
+
+ /* This does not use the preallocated list because splitlines is
+ usually run with hundreds of newlines. The overhead of
+ switching between PyList_SET_ITEM and append causes about a
+ 2-3% slowdown for that common case. A smarter implementation
+ could move the if check out, so the SET_ITEMs are done first
+ and the appends only done when the prealloc buffer is full.
+ That's too much work for little gain.*/
+
+ list = PyList_New(0);
+ if (!list)
+ goto onError;
+
+ for (i = j = 0; i < len; ) {
+ Py_ssize_t eol;
+
+ /* Find a line and append it */
+ while (i < len && data[i] != '\n' && data[i] != '\r')
+ i++;
+
+ /* Skip the line break reading CRLF as one line break */
+ eol = i;
+ if (i < len) {
+ if (data[i] == '\r' && i + 1 < len &&
+ data[i+1] == '\n')
+ i += 2;
+ else
+ i++;
+ if (keepends)
+ eol = i;
+ }
+ SPLIT_APPEND(data, j, eol);
+ j = i;
}
- if (where == n) {
- PyErr_SetString(PyExc_ValueError, "value not found in bytes");
- return NULL;
+ if (j < len) {
+ SPLIT_APPEND(data, j, len);
}
- memmove(self->ob_bytes + where, self->ob_bytes + where + 1, n - where);
- if (PyByteArray_Resize((PyObject *)self, n - 1) < 0)
- return NULL;
+ return list;
- Py_RETURN_NONE;
+ onError:
+ Py_XDECREF(list);
+ return NULL;
}
-/* XXX These two helpers could be optimized if argsize == 1 */
+#undef SPLIT_APPEND
+#undef SPLIT_ADD
+#undef MAX_PREALLOC
+#undef PREALLOC_SIZE
-static Py_ssize_t
-lstrip_helper(unsigned char *myptr, Py_ssize_t mysize,
- void *argptr, Py_ssize_t argsize)
+static PyObject *
+string_getnewargs(PyBytesObject *v)
{
- Py_ssize_t i = 0;
- while (i < mysize && memchr(argptr, myptr[i], argsize))
- i++;
- return i;
+ return Py_BuildValue("(s#)", v->ob_sval, Py_SIZE(v));
}
-static Py_ssize_t
-rstrip_helper(unsigned char *myptr, Py_ssize_t mysize,
- void *argptr, Py_ssize_t argsize)
-{
- Py_ssize_t i = mysize - 1;
- while (i >= 0 && memchr(argptr, myptr[i], argsize))
- i--;
- return i + 1;
-}
-PyDoc_STRVAR(strip__doc__,
-"B.strip([bytes]) -> bytearray\n\
+#include "stringlib/string_format.h"
+
+PyDoc_STRVAR(format__doc__,
+"S.format(*args, **kwargs) -> unicode\n\
\n\
-Strip leading and trailing bytes contained in the argument.\n\
-If the argument is omitted, strip ASCII whitespace.");
-static PyObject *
-bytes_strip(PyByteArrayObject *self, PyObject *args)
-{
- Py_ssize_t left, right, mysize, argsize;
- void *myptr, *argptr;
- PyObject *arg = Py_None;
- Py_buffer varg;
- if (!PyArg_ParseTuple(args, "|O:strip", &arg))
- return NULL;
- if (arg == Py_None) {
- argptr = "\t\n\r\f\v ";
- argsize = 6;
- }
- else {
- if (_getbuffer(arg, &varg) < 0)
- return NULL;
- argptr = varg.buf;
- argsize = varg.len;
- }
- myptr = self->ob_bytes;
- mysize = Py_SIZE(self);
- left = lstrip_helper(myptr, mysize, argptr, argsize);
- if (left == mysize)
- right = left;
- else
- right = rstrip_helper(myptr, mysize, argptr, argsize);
- if (arg != Py_None)
- PyObject_ReleaseBuffer(arg, &varg);
- return PyByteArray_FromStringAndSize(self->ob_bytes + left, right - left);
-}
+");
-PyDoc_STRVAR(lstrip__doc__,
-"B.lstrip([bytes]) -> bytearray\n\
+PyDoc_STRVAR(p_format__doc__,
+"S.__format__(format_spec) -> unicode\n\
\n\
-Strip leading bytes contained in the argument.\n\
-If the argument is omitted, strip leading ASCII whitespace.");
+");
+
+
+static PyMethodDef
+string_methods[] = {
+ /* Counterparts of the obsolete stropmodule functions; except
+ string.maketrans(). */
+ {"join", (PyCFunction)string_join, METH_O, join__doc__},
+ {"split", (PyCFunction)string_split, METH_VARARGS, split__doc__},
+ {"rsplit", (PyCFunction)string_rsplit, METH_VARARGS, rsplit__doc__},
+ {"lower", (PyCFunction)string_lower, METH_NOARGS, lower__doc__},
+ {"upper", (PyCFunction)string_upper, METH_NOARGS, upper__doc__},
+ {"islower", (PyCFunction)string_islower, METH_NOARGS, islower__doc__},
+ {"isupper", (PyCFunction)string_isupper, METH_NOARGS, isupper__doc__},
+ {"isspace", (PyCFunction)string_isspace, METH_NOARGS, isspace__doc__},
+ {"isdigit", (PyCFunction)string_isdigit, METH_NOARGS, isdigit__doc__},
+ {"istitle", (PyCFunction)string_istitle, METH_NOARGS, istitle__doc__},
+ {"isalpha", (PyCFunction)string_isalpha, METH_NOARGS, isalpha__doc__},
+ {"isalnum", (PyCFunction)string_isalnum, METH_NOARGS, isalnum__doc__},
+ {"capitalize", (PyCFunction)string_capitalize, METH_NOARGS,
+ capitalize__doc__},
+ {"count", (PyCFunction)string_count, METH_VARARGS, count__doc__},
+ {"endswith", (PyCFunction)string_endswith, METH_VARARGS,
+ endswith__doc__},
+ {"partition", (PyCFunction)string_partition, METH_O, partition__doc__},
+ {"find", (PyCFunction)string_find, METH_VARARGS, find__doc__},
+ {"index", (PyCFunction)string_index, METH_VARARGS, index__doc__},
+ {"lstrip", (PyCFunction)string_lstrip, METH_VARARGS, lstrip__doc__},
+ {"replace", (PyCFunction)string_replace, METH_VARARGS, replace__doc__},
+ {"rfind", (PyCFunction)string_rfind, METH_VARARGS, rfind__doc__},
+ {"rindex", (PyCFunction)string_rindex, METH_VARARGS, rindex__doc__},
+ {"rstrip", (PyCFunction)string_rstrip, METH_VARARGS, rstrip__doc__},
+ {"rpartition", (PyCFunction)string_rpartition, METH_O,
+ rpartition__doc__},
+ {"startswith", (PyCFunction)string_startswith, METH_VARARGS,
+ startswith__doc__},
+ {"strip", (PyCFunction)string_strip, METH_VARARGS, strip__doc__},
+ {"swapcase", (PyCFunction)string_swapcase, METH_NOARGS,
+ swapcase__doc__},
+ {"translate", (PyCFunction)string_translate, METH_VARARGS,
+ translate__doc__},
+ {"title", (PyCFunction)string_title, METH_NOARGS, title__doc__},
+ {"ljust", (PyCFunction)string_ljust, METH_VARARGS, ljust__doc__},
+ {"rjust", (PyCFunction)string_rjust, METH_VARARGS, rjust__doc__},
+ {"center", (PyCFunction)string_center, METH_VARARGS, center__doc__},
+ {"zfill", (PyCFunction)string_zfill, METH_VARARGS, zfill__doc__},
+ {"format", (PyCFunction) do_string_format, METH_VARARGS | METH_KEYWORDS, format__doc__},
+ {"__format__", (PyCFunction) string__format__, METH_VARARGS, p_format__doc__},
+ {"_formatter_field_name_split", (PyCFunction) formatter_field_name_split, METH_NOARGS},
+ {"_formatter_parser", (PyCFunction) formatter_parser, METH_NOARGS},
+ {"encode", (PyCFunction)string_encode, METH_VARARGS, encode__doc__},
+ {"decode", (PyCFunction)string_decode, METH_VARARGS, decode__doc__},
+ {"expandtabs", (PyCFunction)string_expandtabs, METH_VARARGS,
+ expandtabs__doc__},
+ {"splitlines", (PyCFunction)string_splitlines, METH_VARARGS,
+ splitlines__doc__},
+ {"__getnewargs__", (PyCFunction)string_getnewargs, METH_NOARGS},
+ {NULL, NULL} /* sentinel */
+};
+
static PyObject *
-bytes_lstrip(PyByteArrayObject *self, PyObject *args)
+str_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds);
+
+static PyObject *
+string_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
- Py_ssize_t left, right, mysize, argsize;
- void *myptr, *argptr;
- PyObject *arg = Py_None;
- Py_buffer varg;
- if (!PyArg_ParseTuple(args, "|O:lstrip", &arg))
- return NULL;
- if (arg == Py_None) {
- argptr = "\t\n\r\f\v ";
- argsize = 6;
- }
- else {
- if (_getbuffer(arg, &varg) < 0)
- return NULL;
- argptr = varg.buf;
- argsize = varg.len;
- }
- myptr = self->ob_bytes;
- mysize = Py_SIZE(self);
- left = lstrip_helper(myptr, mysize, argptr, argsize);
- right = mysize;
- if (arg != Py_None)
- PyObject_ReleaseBuffer(arg, &varg);
- return PyByteArray_FromStringAndSize(self->ob_bytes + left, right - left);
+ PyObject *x = NULL;
+ static char *kwlist[] = {"object", 0};
+
+ if (type != &PyBytes_Type)
+ return str_subtype_new(type, args, kwds);
+ if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O:str", kwlist, &x))
+ return NULL;
+ if (x == NULL)
+ return PyBytes_FromString("");
+ return PyObject_Str(x);
}
-PyDoc_STRVAR(rstrip__doc__,
-"B.rstrip([bytes]) -> bytearray\n\
-\n\
-Strip trailing bytes contained in the argument.\n\
-If the argument is omitted, strip trailing ASCII whitespace.");
static PyObject *
-bytes_rstrip(PyByteArrayObject *self, PyObject *args)
+str_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
- Py_ssize_t left, right, mysize, argsize;
- void *myptr, *argptr;
- PyObject *arg = Py_None;
- Py_buffer varg;
- if (!PyArg_ParseTuple(args, "|O:rstrip", &arg))
- return NULL;
- if (arg == Py_None) {
- argptr = "\t\n\r\f\v ";
- argsize = 6;
- }
- else {
- if (_getbuffer(arg, &varg) < 0)
- return NULL;
- argptr = varg.buf;
- argsize = varg.len;
- }
- myptr = self->ob_bytes;
- mysize = Py_SIZE(self);
- left = 0;
- right = rstrip_helper(myptr, mysize, argptr, argsize);
- if (arg != Py_None)
- PyObject_ReleaseBuffer(arg, &varg);
- return PyByteArray_FromStringAndSize(self->ob_bytes + left, right - left);
+ PyObject *tmp, *pnew;
+ Py_ssize_t n;
+
+ assert(PyType_IsSubtype(type, &PyBytes_Type));
+ tmp = string_new(&PyBytes_Type, args, kwds);
+ if (tmp == NULL)
+ return NULL;
+ assert(PyBytes_CheckExact(tmp));
+ n = PyBytes_GET_SIZE(tmp);
+ pnew = type->tp_alloc(type, n);
+ if (pnew != NULL) {
+ Py_MEMCPY(PyBytes_AS_STRING(pnew), PyBytes_AS_STRING(tmp), n+1);
+ ((PyBytesObject *)pnew)->ob_shash =
+ ((PyBytesObject *)tmp)->ob_shash;
+ ((PyBytesObject *)pnew)->ob_sstate = SSTATE_NOT_INTERNED;
+ }
+ Py_DECREF(tmp);
+ return pnew;
}
-PyDoc_STRVAR(decode_doc,
-"B.decode([encoding[, errors]]) -> unicode object.\n\
-\n\
-Decodes B using the codec registered for encoding. encoding defaults\n\
-to the default encoding. errors may be given to set a different error\n\
-handling scheme. Default is 'strict' meaning that encoding errors raise\n\
-a UnicodeDecodeError. Other possible values are 'ignore' and 'replace'\n\
-as well as any other name registered with codecs.register_error that is\n\
-able to handle UnicodeDecodeErrors.");
-
static PyObject *
-bytes_decode(PyObject *self, PyObject *args)
+basestring_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
- const char *encoding = NULL;
- const char *errors = NULL;
-
- if (!PyArg_ParseTuple(args, "|ss:decode", &encoding, &errors))
- return NULL;
- if (encoding == NULL)
- encoding = PyUnicode_GetDefaultEncoding();
- return PyCodec_Decode(self, encoding, errors);
+ PyErr_SetString(PyExc_TypeError,
+ "The basestring type cannot be instantiated");
+ return NULL;
}
-PyDoc_STRVAR(alloc_doc,
-"B.__alloc__() -> int\n\
-\n\
-Returns the number of bytes actually allocated.");
-
static PyObject *
-bytes_alloc(PyByteArrayObject *self)
+string_mod(PyObject *v, PyObject *w)
{
- return PyInt_FromSsize_t(self->ob_alloc);
+ if (!PyBytes_Check(v)) {
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+ return PyBytes_Format(v, w);
}
-PyDoc_STRVAR(join_doc,
-"B.join(iterable_of_bytes) -> bytes\n\
-\n\
-Concatenates any number of bytearray objects, with B in between each pair.");
+PyDoc_STRVAR(basestring_doc,
+"Type basestring cannot be instantiated; it is the base for str and unicode.");
-static PyObject *
-bytes_join(PyByteArrayObject *self, PyObject *it)
-{
- PyObject *seq;
- Py_ssize_t mysize = Py_SIZE(self);
- Py_ssize_t i;
- Py_ssize_t n;
- PyObject **items;
- Py_ssize_t totalsize = 0;
- PyObject *result;
- char *dest;
-
- seq = PySequence_Fast(it, "can only join an iterable");
- if (seq == NULL)
- return NULL;
- n = PySequence_Fast_GET_SIZE(seq);
- items = PySequence_Fast_ITEMS(seq);
-
- /* Compute the total size, and check that they are all bytes */
- /* XXX Shouldn't we use _getbuffer() on these items instead? */
- for (i = 0; i < n; i++) {
- PyObject *obj = items[i];
- if (!PyByteArray_Check(obj) && !PyBytes_Check(obj)) {
- PyErr_Format(PyExc_TypeError,
- "can only join an iterable of bytes "
- "(item %ld has type '%.100s')",
- /* XXX %ld isn't right on Win64 */
- (long)i, Py_TYPE(obj)->tp_name);
- goto error;
- }
- if (i > 0)
- totalsize += mysize;
- totalsize += Py_SIZE(obj);
- if (totalsize < 0) {
- PyErr_NoMemory();
- goto error;
- }
- }
-
- /* Allocate the result, and copy the bytes */
- result = PyByteArray_FromStringAndSize(NULL, totalsize);
- if (result == NULL)
- goto error;
- dest = PyByteArray_AS_STRING(result);
- for (i = 0; i < n; i++) {
- PyObject *obj = items[i];
- Py_ssize_t size = Py_SIZE(obj);
- char *buf;
- if (PyByteArray_Check(obj))
- buf = PyByteArray_AS_STRING(obj);
- else
- buf = PyBytes_AS_STRING(obj);
- if (i) {
- memcpy(dest, self->ob_bytes, mysize);
- dest += mysize;
- }
- memcpy(dest, buf, size);
- dest += size;
- }
+static PyNumberMethods string_as_number = {
+ 0, /*nb_add*/
+ 0, /*nb_subtract*/
+ 0, /*nb_multiply*/
+ 0, /*nb_divide*/
+ string_mod, /*nb_remainder*/
+};
- /* Done */
- Py_DECREF(seq);
- return result;
- /* Error handling */
- error:
- Py_DECREF(seq);
- return NULL;
-}
+PyTypeObject PyBaseString_Type = {
+ PyVarObject_HEAD_INIT(&PyType_Type, 0)
+ "basestring",
+ 0,
+ 0,
+ 0, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
+ basestring_doc, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ &PyBaseObject_Type, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ 0, /* tp_alloc */
+ basestring_new, /* tp_new */
+ 0, /* tp_free */
+};
-PyDoc_STRVAR(fromhex_doc,
-"bytearray.fromhex(string) -> bytearray\n\
+PyDoc_STRVAR(string_doc,
+"str(object) -> string\n\
\n\
-Create a bytearray object from a string of hexadecimal numbers.\n\
-Spaces between two numbers are accepted.\n\
-Example: bytearray.fromhex('B9 01EF') -> bytearray(b'\\xb9\\x01\\xef').");
+Return a nice string representation of the object.\n\
+If the argument is a string, the return value is the same object.");
+
+PyTypeObject PyBytes_Type = {
+ PyVarObject_HEAD_INIT(&PyType_Type, 0)
+ "str",
+ sizeof(PyBytesObject),
+ sizeof(char),
+ string_dealloc, /* tp_dealloc */
+ (printfunc)string_print, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ string_repr, /* tp_repr */
+ &string_as_number, /* tp_as_number */
+ &string_as_sequence, /* tp_as_sequence */
+ &string_as_mapping, /* tp_as_mapping */
+ (hashfunc)string_hash, /* tp_hash */
+ 0, /* tp_call */
+ string_str, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ &string_as_buffer, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES |
+ Py_TPFLAGS_BASETYPE | Py_TPFLAGS_STRING_SUBCLASS |
+ Py_TPFLAGS_HAVE_NEWBUFFER, /* tp_flags */
+ string_doc, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ (richcmpfunc)string_richcompare, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ string_methods, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ &PyBaseString_Type, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ 0, /* tp_alloc */
+ string_new, /* tp_new */
+ PyObject_Del, /* tp_free */
+};
-static int
-hex_digit_to_int(Py_UNICODE c)
-{
- if (c >= 128)
- return -1;
- if (ISDIGIT(c))
- return c - '0';
- else {
- if (ISUPPER(c))
- c = TOLOWER(c);
- if (c >= 'a' && c <= 'f')
- return c - 'a' + 10;
- }
- return -1;
+void
+PyBytes_Concat(register PyObject **pv, register PyObject *w)
+{
+ register PyObject *v;
+ if (*pv == NULL)
+ return;
+ if (w == NULL || !PyBytes_Check(*pv)) {
+ Py_DECREF(*pv);
+ *pv = NULL;
+ return;
+ }
+ v = string_concat((PyBytesObject *) *pv, w);
+ Py_DECREF(*pv);
+ *pv = v;
}
-static PyObject *
-bytes_fromhex(PyObject *cls, PyObject *args)
+void
+PyBytes_ConcatAndDel(register PyObject **pv, register PyObject *w)
{
- PyObject *newbytes, *hexobj;
- char *buf;
- Py_UNICODE *hex;
- Py_ssize_t hexlen, byteslen, i, j;
- int top, bot;
-
- if (!PyArg_ParseTuple(args, "U:fromhex", &hexobj))
- return NULL;
- assert(PyUnicode_Check(hexobj));
- hexlen = PyUnicode_GET_SIZE(hexobj);
- hex = PyUnicode_AS_UNICODE(hexobj);
- byteslen = hexlen/2; /* This overestimates if there are spaces */
- newbytes = PyByteArray_FromStringAndSize(NULL, byteslen);
- if (!newbytes)
- return NULL;
- buf = PyByteArray_AS_STRING(newbytes);
- for (i = j = 0; i < hexlen; i += 2) {
- /* skip over spaces in the input */
- while (hex[i] == ' ')
- i++;
- if (i >= hexlen)
- break;
- top = hex_digit_to_int(hex[i]);
- bot = hex_digit_to_int(hex[i+1]);
- if (top == -1 || bot == -1) {
- PyErr_Format(PyExc_ValueError,
- "non-hexadecimal number found in "
- "fromhex() arg at position %zd", i);
- goto error;
- }
- buf[j++] = (top << 4) + bot;
- }
- if (PyByteArray_Resize(newbytes, j) < 0)
- goto error;
- return newbytes;
-
- error:
- Py_DECREF(newbytes);
- return NULL;
+ PyBytes_Concat(pv, w);
+ Py_XDECREF(w);
}
-PyDoc_STRVAR(reduce_doc, "Return state information for pickling.");
-static PyObject *
-bytes_reduce(PyByteArrayObject *self)
-{
- PyObject *latin1, *dict;
- if (self->ob_bytes)
- latin1 = PyUnicode_DecodeLatin1(self->ob_bytes,
- Py_SIZE(self), NULL);
- else
- latin1 = PyUnicode_FromString("");
-
- dict = PyObject_GetAttrString((PyObject *)self, "__dict__");
- if (dict == NULL) {
- PyErr_Clear();
- dict = Py_None;
- Py_INCREF(dict);
- }
+/* The following function breaks the notion that strings are immutable:
+ it changes the size of a string. We get away with this only if there
+ is only one module referencing the object. You can also think of it
+ as creating a new string object and destroying the old one, only
+ more efficiently. In any case, don't use this if the string may
+ already be known to some other part of the code...
+ Note that if there's not enough memory to resize the string, the original
+ string object at *pv is deallocated, *pv is set to NULL, an "out of
+ memory" exception is set, and -1 is returned. Else (on success) 0 is
+ returned, and the value in *pv may or may not be the same as on input.
+ As always, an extra byte is allocated for a trailing \0 byte (newsize
+ does *not* include that), and a trailing \0 byte is stored.
+*/
- return Py_BuildValue("(O(Ns)N)", Py_TYPE(self), latin1, "latin-1", dict);
+int
+_PyBytes_Resize(PyObject **pv, Py_ssize_t newsize)
+{
+ register PyObject *v;
+ register PyBytesObject *sv;
+ v = *pv;
+ if (!PyBytes_Check(v) || Py_REFCNT(v) != 1 || newsize < 0 ||
+ PyBytes_CHECK_INTERNED(v)) {
+ *pv = 0;
+ Py_DECREF(v);
+ PyErr_BadInternalCall();
+ return -1;
+ }
+ /* XXX UNREF/NEWREF interface should be more symmetrical */
+ _Py_DEC_REFTOTAL;
+ _Py_ForgetReference(v);
+ *pv = (PyObject *)
+ PyObject_REALLOC((char *)v, sizeof(PyBytesObject) + newsize);
+ if (*pv == NULL) {
+ PyObject_Del(v);
+ PyErr_NoMemory();
+ return -1;
+ }
+ _Py_NewReference(*pv);
+ sv = (PyBytesObject *) *pv;
+ Py_SIZE(sv) = newsize;
+ sv->ob_sval[newsize] = '\0';
+ sv->ob_shash = -1; /* invalidate cached hash value */
+ return 0;
}
-static PySequenceMethods bytes_as_sequence = {
- (lenfunc)bytes_length, /* sq_length */
- (binaryfunc)PyByteArray_Concat, /* sq_concat */
- (ssizeargfunc)bytes_repeat, /* sq_repeat */
- (ssizeargfunc)bytes_getitem, /* sq_item */
- 0, /* sq_slice */
- (ssizeobjargproc)bytes_setitem, /* sq_ass_item */
- 0, /* sq_ass_slice */
- (objobjproc)bytes_contains, /* sq_contains */
- (binaryfunc)bytes_iconcat, /* sq_inplace_concat */
- (ssizeargfunc)bytes_irepeat, /* sq_inplace_repeat */
-};
+/* Helpers for formatstring */
-static PyMappingMethods bytes_as_mapping = {
- (lenfunc)bytes_length,
- (binaryfunc)bytes_subscript,
- (objobjargproc)bytes_ass_subscript,
-};
-
-static PyBufferProcs bytes_as_buffer = {
- (readbufferproc)bytes_buffer_getreadbuf,
- (writebufferproc)bytes_buffer_getwritebuf,
- (segcountproc)bytes_buffer_getsegcount,
- (charbufferproc)bytes_buffer_getcharbuf,
- (getbufferproc)bytes_getbuffer,
- (releasebufferproc)bytes_releasebuffer,
-};
-
-static PyMethodDef
-bytes_methods[] = {
- {"__alloc__", (PyCFunction)bytes_alloc, METH_NOARGS, alloc_doc},
- {"__reduce__", (PyCFunction)bytes_reduce, METH_NOARGS, reduce_doc},
- {"append", (PyCFunction)bytes_append, METH_O, append__doc__},
- {"capitalize", (PyCFunction)stringlib_capitalize, METH_NOARGS,
- _Py_capitalize__doc__},
- {"center", (PyCFunction)stringlib_center, METH_VARARGS, center__doc__},
- {"count", (PyCFunction)bytes_count, METH_VARARGS, count__doc__},
- {"decode", (PyCFunction)bytes_decode, METH_VARARGS, decode_doc},
- {"endswith", (PyCFunction)bytes_endswith, METH_VARARGS, endswith__doc__},
- {"expandtabs", (PyCFunction)stringlib_expandtabs, METH_VARARGS,
- expandtabs__doc__},
- {"extend", (PyCFunction)bytes_extend, METH_O, extend__doc__},
- {"find", (PyCFunction)bytes_find, METH_VARARGS, find__doc__},
- {"fromhex", (PyCFunction)bytes_fromhex, METH_VARARGS|METH_CLASS,
- fromhex_doc},
- {"index", (PyCFunction)bytes_index, METH_VARARGS, index__doc__},
- {"insert", (PyCFunction)bytes_insert, METH_VARARGS, insert__doc__},
- {"isalnum", (PyCFunction)stringlib_isalnum, METH_NOARGS,
- _Py_isalnum__doc__},
- {"isalpha", (PyCFunction)stringlib_isalpha, METH_NOARGS,
- _Py_isalpha__doc__},
- {"isdigit", (PyCFunction)stringlib_isdigit, METH_NOARGS,
- _Py_isdigit__doc__},
- {"islower", (PyCFunction)stringlib_islower, METH_NOARGS,
- _Py_islower__doc__},
- {"isspace", (PyCFunction)stringlib_isspace, METH_NOARGS,
- _Py_isspace__doc__},
- {"istitle", (PyCFunction)stringlib_istitle, METH_NOARGS,
- _Py_istitle__doc__},
- {"isupper", (PyCFunction)stringlib_isupper, METH_NOARGS,
- _Py_isupper__doc__},
- {"join", (PyCFunction)bytes_join, METH_O, join_doc},
- {"ljust", (PyCFunction)stringlib_ljust, METH_VARARGS, ljust__doc__},
- {"lower", (PyCFunction)stringlib_lower, METH_NOARGS, _Py_lower__doc__},
- {"lstrip", (PyCFunction)bytes_lstrip, METH_VARARGS, lstrip__doc__},
- {"partition", (PyCFunction)bytes_partition, METH_O, partition__doc__},
- {"pop", (PyCFunction)bytes_pop, METH_VARARGS, pop__doc__},
- {"remove", (PyCFunction)bytes_remove, METH_O, remove__doc__},
- {"replace", (PyCFunction)bytes_replace, METH_VARARGS, replace__doc__},
- {"reverse", (PyCFunction)bytes_reverse, METH_NOARGS, reverse__doc__},
- {"rfind", (PyCFunction)bytes_rfind, METH_VARARGS, rfind__doc__},
- {"rindex", (PyCFunction)bytes_rindex, METH_VARARGS, rindex__doc__},
- {"rjust", (PyCFunction)stringlib_rjust, METH_VARARGS, rjust__doc__},
- {"rpartition", (PyCFunction)bytes_rpartition, METH_O, rpartition__doc__},
- {"rsplit", (PyCFunction)bytes_rsplit, METH_VARARGS, rsplit__doc__},
- {"rstrip", (PyCFunction)bytes_rstrip, METH_VARARGS, rstrip__doc__},
- {"split", (PyCFunction)bytes_split, METH_VARARGS, split__doc__},
- {"splitlines", (PyCFunction)stringlib_splitlines, METH_VARARGS,
- splitlines__doc__},
- {"startswith", (PyCFunction)bytes_startswith, METH_VARARGS ,
- startswith__doc__},
- {"strip", (PyCFunction)bytes_strip, METH_VARARGS, strip__doc__},
- {"swapcase", (PyCFunction)stringlib_swapcase, METH_NOARGS,
- _Py_swapcase__doc__},
- {"title", (PyCFunction)stringlib_title, METH_NOARGS, _Py_title__doc__},
- {"translate", (PyCFunction)bytes_translate, METH_VARARGS,
- translate__doc__},
- {"upper", (PyCFunction)stringlib_upper, METH_NOARGS, _Py_upper__doc__},
- {"zfill", (PyCFunction)stringlib_zfill, METH_VARARGS, zfill__doc__},
- {NULL}
-};
-
-PyDoc_STRVAR(bytes_doc,
-"bytearray(iterable_of_ints) -> bytearray.\n\
-bytearray(string, encoding[, errors]) -> bytearray.\n\
-bytearray(bytes_or_bytearray) -> mutable copy of bytes_or_bytearray.\n\
-bytearray(memory_view) -> bytearray.\n\
-\n\
-Construct an mutable bytearray object from:\n\
- - an iterable yielding integers in range(256)\n\
- - a text string encoded using the specified encoding\n\
- - a bytes or a bytearray object\n\
- - any object implementing the buffer API.\n\
-\n\
-bytearray(int) -> bytearray.\n\
-\n\
-Construct a zero-initialized bytearray of the given length.");
-
-
-static PyObject *bytes_iter(PyObject *seq);
-
-PyTypeObject PyByteArray_Type = {
- PyVarObject_HEAD_INIT(&PyType_Type, 0)
- "bytearray",
- sizeof(PyByteArrayObject),
- 0,
- (destructor)bytes_dealloc, /* tp_dealloc */
- 0, /* tp_print */
- 0, /* tp_getattr */
- 0, /* tp_setattr */
- 0, /* tp_compare */
- (reprfunc)bytes_repr, /* tp_repr */
- 0, /* tp_as_number */
- &bytes_as_sequence, /* tp_as_sequence */
- &bytes_as_mapping, /* tp_as_mapping */
- 0, /* tp_hash */
- 0, /* tp_call */
- bytes_str, /* tp_str */
- PyObject_GenericGetAttr, /* tp_getattro */
- 0, /* tp_setattro */
- &bytes_as_buffer, /* tp_as_buffer */
- Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
- Py_TPFLAGS_HAVE_NEWBUFFER, /* tp_flags */
- bytes_doc, /* tp_doc */
- 0, /* tp_traverse */
- 0, /* tp_clear */
- (richcmpfunc)bytes_richcompare, /* tp_richcompare */
- 0, /* tp_weaklistoffset */
- bytes_iter, /* tp_iter */
- 0, /* tp_iternext */
- bytes_methods, /* tp_methods */
- 0, /* tp_members */
- 0, /* tp_getset */
- 0, /* tp_base */
- 0, /* tp_dict */
- 0, /* tp_descr_get */
- 0, /* tp_descr_set */
- 0, /* tp_dictoffset */
- (initproc)bytes_init, /* tp_init */
- PyType_GenericAlloc, /* tp_alloc */
- PyType_GenericNew, /* tp_new */
- PyObject_Del, /* tp_free */
-};
+Py_LOCAL_INLINE(PyObject *)
+getnextarg(PyObject *args, Py_ssize_t arglen, Py_ssize_t *p_argidx)
+{
+ Py_ssize_t argidx = *p_argidx;
+ if (argidx < arglen) {
+ (*p_argidx)++;
+ if (arglen < 0)
+ return args;
+ else
+ return PyTuple_GetItem(args, argidx);
+ }
+ PyErr_SetString(PyExc_TypeError,
+ "not enough arguments for format string");
+ return NULL;
+}
-/*********************** Bytes Iterator ****************************/
+/* Format codes
+ * F_LJUST '-'
+ * F_SIGN '+'
+ * F_BLANK ' '
+ * F_ALT '#'
+ * F_ZERO '0'
+ */
+#define F_LJUST (1<<0)
+#define F_SIGN (1<<1)
+#define F_BLANK (1<<2)
+#define F_ALT (1<<3)
+#define F_ZERO (1<<4)
+
+Py_LOCAL_INLINE(int)
+formatfloat(char *buf, size_t buflen, int flags,
+ int prec, int type, PyObject *v)
+{
+ /* fmt = '%#.' + `prec` + `type`
+ worst case length = 3 + 10 (len of INT_MAX) + 1 = 14 (use 20)*/
+ char fmt[20];
+ double x;
+ x = PyFloat_AsDouble(v);
+ if (x == -1.0 && PyErr_Occurred()) {
+ PyErr_Format(PyExc_TypeError, "float argument required, "
+ "not %.200s", Py_TYPE(v)->tp_name);
+ return -1;
+ }
+ if (prec < 0)
+ prec = 6;
+ if (type == 'f' && fabs(x)/1e25 >= 1e25)
+ type = 'g';
+ /* Worst case length calc to ensure no buffer overrun:
+
+ 'g' formats:
+ fmt = %#.<prec>g
+ buf = '-' + [0-9]*prec + '.' + 'e+' + (longest exp
+ for any double rep.)
+ len = 1 + prec + 1 + 2 + 5 = 9 + prec
+
+ 'f' formats:
+ buf = '-' + [0-9]*x + '.' + [0-9]*prec (with x < 50)
+ len = 1 + 50 + 1 + prec = 52 + prec
+
+ If prec=0 the effective precision is 1 (the leading digit is
+ always given), therefore increase the length by one.
+
+ */
+ if (((type == 'g' || type == 'G') &&
+ buflen <= (size_t)10 + (size_t)prec) ||
+ (type == 'f' && buflen <= (size_t)53 + (size_t)prec)) {
+ PyErr_SetString(PyExc_OverflowError,
+ "formatted float is too long (precision too large?)");
+ return -1;
+ }
+ PyOS_snprintf(fmt, sizeof(fmt), "%%%s.%d%c",
+ (flags&F_ALT) ? "#" : "",
+ prec, type);
+ PyOS_ascii_formatd(buf, buflen, fmt, x);
+ return (int)strlen(buf);
+}
-typedef struct {
- PyObject_HEAD
- Py_ssize_t it_index;
- PyByteArrayObject *it_seq; /* Set to NULL when iterator is exhausted */
-} bytesiterobject;
+/* _PyBytes_FormatLong emulates the format codes d, u, o, x and X, and
+ * the F_ALT flag, for Python's long (unbounded) ints. It's not used for
+ * Python's regular ints.
+ * Return value: a new PyString*, or NULL if error.
+ * . *pbuf is set to point into it,
+ * *plen set to the # of chars following that.
+ * Caller must decref it when done using pbuf.
+ * The string starting at *pbuf is of the form
+ * "-"? ("0x" | "0X")? digit+
+ * "0x"/"0X" are present only for x and X conversions, with F_ALT
+ * set in flags. The case of hex digits will be correct,
+ * There will be at least prec digits, zero-filled on the left if
+ * necessary to get that many.
+ * val object to be converted
+ * flags bitmask of format flags; only F_ALT is looked at
+ * prec minimum number of digits; 0-fill on left if needed
+ * type a character in [duoxX]; u acts the same as d
+ *
+ * CAUTION: o, x and X conversions on regular ints can never
+ * produce a '-' sign, but can for Python's unbounded ints.
+ */
+PyObject*
+_PyBytes_FormatLong(PyObject *val, int flags, int prec, int type,
+ char **pbuf, int *plen)
+{
+ PyObject *result = NULL;
+ char *buf;
+ Py_ssize_t i;
+ int sign; /* 1 if '-', else 0 */
+ int len; /* number of characters */
+ Py_ssize_t llen;
+ int numdigits; /* len == numnondigits + numdigits */
+ int numnondigits = 0;
+
+ switch (type) {
+ case 'd':
+ case 'u':
+ result = Py_TYPE(val)->tp_str(val);
+ break;
+ case 'o':
+ result = Py_TYPE(val)->tp_as_number->nb_oct(val);
+ break;
+ case 'x':
+ case 'X':
+ numnondigits = 2;
+ result = Py_TYPE(val)->tp_as_number->nb_hex(val);
+ break;
+ default:
+ assert(!"'type' not in [duoxX]");
+ }
+ if (!result)
+ return NULL;
+
+ buf = PyBytes_AsString(result);
+ if (!buf) {
+ Py_DECREF(result);
+ return NULL;
+ }
+
+ /* To modify the string in-place, there can only be one reference. */
+ if (Py_REFCNT(result) != 1) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+ llen = PyBytes_Size(result);
+ if (llen > INT_MAX) {
+ PyErr_SetString(PyExc_ValueError, "string too large in _PyBytes_FormatLong");
+ return NULL;
+ }
+ len = (int)llen;
+ if (buf[len-1] == 'L') {
+ --len;
+ buf[len] = '\0';
+ }
+ sign = buf[0] == '-';
+ numnondigits += sign;
+ numdigits = len - numnondigits;
+ assert(numdigits > 0);
+
+ /* Get rid of base marker unless F_ALT */
+ if ((flags & F_ALT) == 0) {
+ /* Need to skip 0x, 0X or 0. */
+ int skipped = 0;
+ switch (type) {
+ case 'o':
+ assert(buf[sign] == '0');
+ /* If 0 is only digit, leave it alone. */
+ if (numdigits > 1) {
+ skipped = 1;
+ --numdigits;
+ }
+ break;
+ case 'x':
+ case 'X':
+ assert(buf[sign] == '0');
+ assert(buf[sign + 1] == 'x');
+ skipped = 2;
+ numnondigits -= 2;
+ break;
+ }
+ if (skipped) {
+ buf += skipped;
+ len -= skipped;
+ if (sign)
+ buf[0] = '-';
+ }
+ assert(len == numnondigits + numdigits);
+ assert(numdigits > 0);
+ }
+
+ /* Fill with leading zeroes to meet minimum width. */
+ if (prec > numdigits) {
+ PyObject *r1 = PyBytes_FromStringAndSize(NULL,
+ numnondigits + prec);
+ char *b1;
+ if (!r1) {
+ Py_DECREF(result);
+ return NULL;
+ }
+ b1 = PyBytes_AS_STRING(r1);
+ for (i = 0; i < numnondigits; ++i)
+ *b1++ = *buf++;
+ for (i = 0; i < prec - numdigits; i++)
+ *b1++ = '0';
+ for (i = 0; i < numdigits; i++)
+ *b1++ = *buf++;
+ *b1 = '\0';
+ Py_DECREF(result);
+ result = r1;
+ buf = PyBytes_AS_STRING(result);
+ len = numnondigits + prec;
+ }
+
+ /* Fix up case for hex conversions. */
+ if (type == 'X') {
+ /* Need to convert all lower case letters to upper case.
+ and need to convert 0x to 0X (and -0x to -0X). */
+ for (i = 0; i < len; i++)
+ if (buf[i] >= 'a' && buf[i] <= 'x')
+ buf[i] -= 'a'-'A';
+ }
+ *pbuf = buf;
+ *plen = len;
+ return result;
+}
-static void
-bytesiter_dealloc(bytesiterobject *it)
+Py_LOCAL_INLINE(int)
+formatint(char *buf, size_t buflen, int flags,
+ int prec, int type, PyObject *v)
{
- _PyObject_GC_UNTRACK(it);
- Py_XDECREF(it->it_seq);
- PyObject_GC_Del(it);
+ /* fmt = '%#.' + `prec` + 'l' + `type`
+ worst case length = 3 + 19 (worst len of INT_MAX on 64-bit machine)
+ + 1 + 1 = 24 */
+ char fmt[64]; /* plenty big enough! */
+ char *sign;
+ long x;
+
+ x = PyInt_AsLong(v);
+ if (x == -1 && PyErr_Occurred()) {
+ PyErr_Format(PyExc_TypeError, "int argument required, not %.200s",
+ Py_TYPE(v)->tp_name);
+ return -1;
+ }
+ if (x < 0 && type == 'u') {
+ type = 'd';
+ }
+ if (x < 0 && (type == 'x' || type == 'X' || type == 'o'))
+ sign = "-";
+ else
+ sign = "";
+ if (prec < 0)
+ prec = 1;
+
+ if ((flags & F_ALT) &&
+ (type == 'x' || type == 'X')) {
+ /* When converting under %#x or %#X, there are a number
+ * of issues that cause pain:
+ * - when 0 is being converted, the C standard leaves off
+ * the '0x' or '0X', which is inconsistent with other
+ * %#x/%#X conversions and inconsistent with Python's
+ * hex() function
+ * - there are platforms that violate the standard and
+ * convert 0 with the '0x' or '0X'
+ * (Metrowerks, Compaq Tru64)
+ * - there are platforms that give '0x' when converting
+ * under %#X, but convert 0 in accordance with the
+ * standard (OS/2 EMX)
+ *
+ * We can achieve the desired consistency by inserting our
+ * own '0x' or '0X' prefix, and substituting %x/%X in place
+ * of %#x/%#X.
+ *
+ * Note that this is the same approach as used in
+ * formatint() in unicodeobject.c
+ */
+ PyOS_snprintf(fmt, sizeof(fmt), "%s0%c%%.%dl%c",
+ sign, type, prec, type);
+ }
+ else {
+ PyOS_snprintf(fmt, sizeof(fmt), "%s%%%s.%dl%c",
+ sign, (flags&F_ALT) ? "#" : "",
+ prec, type);
+ }
+
+ /* buf = '+'/'-'/'' + '0'/'0x'/'' + '[0-9]'*max(prec, len(x in octal))
+ * worst case buf = '-0x' + [0-9]*prec, where prec >= 11
+ */
+ if (buflen <= 14 || buflen <= (size_t)3 + (size_t)prec) {
+ PyErr_SetString(PyExc_OverflowError,
+ "formatted integer is too long (precision too large?)");
+ return -1;
+ }
+ if (sign[0])
+ PyOS_snprintf(buf, buflen, fmt, -x);
+ else
+ PyOS_snprintf(buf, buflen, fmt, x);
+ return (int)strlen(buf);
}
-static int
-bytesiter_traverse(bytesiterobject *it, visitproc visit, void *arg)
+Py_LOCAL_INLINE(int)
+formatchar(char *buf, size_t buflen, PyObject *v)
{
- Py_VISIT(it->it_seq);
- return 0;
+ /* presume that the buffer is at least 2 characters long */
+ if (PyBytes_Check(v)) {
+ if (!PyArg_Parse(v, "c;%c requires int or char", &buf[0]))
+ return -1;
+ }
+ else {
+ if (!PyArg_Parse(v, "b;%c requires int or char", &buf[0]))
+ return -1;
+ }
+ buf[1] = '\0';
+ return 1;
}
-static PyObject *
-bytesiter_next(bytesiterobject *it)
+/* fmt%(v1,v2,...) is roughly equivalent to sprintf(fmt, v1, v2, ...)
+
+ FORMATBUFLEN is the length of the buffer in which the floats, ints, &
+ chars are formatted. XXX This is a magic number. Each formatting
+ routine does bounds checking to ensure no overflow, but a better
+ solution may be to malloc a buffer of appropriate size for each
+ format. For now, the current solution is sufficient.
+*/
+#define FORMATBUFLEN (size_t)120
+
+PyObject *
+PyBytes_Format(PyObject *format, PyObject *args)
{
- PyByteArrayObject *seq;
- PyObject *item;
+ char *fmt, *res;
+ Py_ssize_t arglen, argidx;
+ Py_ssize_t reslen, rescnt, fmtcnt;
+ int args_owned = 0;
+ PyObject *result, *orig_args;
+#ifdef Py_USING_UNICODE
+ PyObject *v, *w;
+#endif
+ PyObject *dict = NULL;
+ if (format == NULL || !PyBytes_Check(format) || args == NULL) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+ orig_args = args;
+ fmt = PyBytes_AS_STRING(format);
+ fmtcnt = PyBytes_GET_SIZE(format);
+ reslen = rescnt = fmtcnt + 100;
+ result = PyBytes_FromStringAndSize((char *)NULL, reslen);
+ if (result == NULL)
+ return NULL;
+ res = PyBytes_AsString(result);
+ if (PyTuple_Check(args)) {
+ arglen = PyTuple_GET_SIZE(args);
+ argidx = 0;
+ }
+ else {
+ arglen = -1;
+ argidx = -2;
+ }
+ if (Py_TYPE(args)->tp_as_mapping && !PyTuple_Check(args) &&
+ !PyObject_TypeCheck(args, &PyBaseString_Type))
+ dict = args;
+ while (--fmtcnt >= 0) {
+ if (*fmt != '%') {
+ if (--rescnt < 0) {
+ rescnt = fmtcnt + 100;
+ reslen += rescnt;
+ if (_PyBytes_Resize(&result, reslen) < 0)
+ return NULL;
+ res = PyBytes_AS_STRING(result)
+ + reslen - rescnt;
+ --rescnt;
+ }
+ *res++ = *fmt++;
+ }
+ else {
+ /* Got a format specifier */
+ int flags = 0;
+ Py_ssize_t width = -1;
+ int prec = -1;
+ int c = '\0';
+ int fill;
+ int isnumok;
+ PyObject *v = NULL;
+ PyObject *temp = NULL;
+ char *pbuf;
+ int sign;
+ Py_ssize_t len;
+ char formatbuf[FORMATBUFLEN];
+ /* For format{float,int,char}() */
+#ifdef Py_USING_UNICODE
+ char *fmt_start = fmt;
+ Py_ssize_t argidx_start = argidx;
+#endif
- assert(it != NULL);
- seq = it->it_seq;
- if (seq == NULL)
- return NULL;
- assert(PyByteArray_Check(seq));
-
- if (it->it_index < PyByteArray_GET_SIZE(seq)) {
- item = PyInt_FromLong(
- (unsigned char)seq->ob_bytes[it->it_index]);
- if (item != NULL)
- ++it->it_index;
- return item;
- }
+ fmt++;
+ if (*fmt == '(') {
+ char *keystart;
+ Py_ssize_t keylen;
+ PyObject *key;
+ int pcount = 1;
+
+ if (dict == NULL) {
+ PyErr_SetString(PyExc_TypeError,
+ "format requires a mapping");
+ goto error;
+ }
+ ++fmt;
+ --fmtcnt;
+ keystart = fmt;
+ /* Skip over balanced parentheses */
+ while (pcount > 0 && --fmtcnt >= 0) {
+ if (*fmt == ')')
+ --pcount;
+ else if (*fmt == '(')
+ ++pcount;
+ fmt++;
+ }
+ keylen = fmt - keystart - 1;
+ if (fmtcnt < 0 || pcount > 0) {
+ PyErr_SetString(PyExc_ValueError,
+ "incomplete format key");
+ goto error;
+ }
+ key = PyBytes_FromStringAndSize(keystart,
+ keylen);
+ if (key == NULL)
+ goto error;
+ if (args_owned) {
+ Py_DECREF(args);
+ args_owned = 0;
+ }
+ args = PyObject_GetItem(dict, key);
+ Py_DECREF(key);
+ if (args == NULL) {
+ goto error;
+ }
+ args_owned = 1;
+ arglen = -1;
+ argidx = -2;
+ }
+ while (--fmtcnt >= 0) {
+ switch (c = *fmt++) {
+ case '-': flags |= F_LJUST; continue;
+ case '+': flags |= F_SIGN; continue;
+ case ' ': flags |= F_BLANK; continue;
+ case '#': flags |= F_ALT; continue;
+ case '0': flags |= F_ZERO; continue;
+ }
+ break;
+ }
+ if (c == '*') {
+ v = getnextarg(args, arglen, &argidx);
+ if (v == NULL)
+ goto error;
+ if (!PyInt_Check(v)) {
+ PyErr_SetString(PyExc_TypeError,
+ "* wants int");
+ goto error;
+ }
+ width = PyInt_AsLong(v);
+ if (width < 0) {
+ flags |= F_LJUST;
+ width = -width;
+ }
+ if (--fmtcnt >= 0)
+ c = *fmt++;
+ }
+ else if (c >= 0 && isdigit(c)) {
+ width = c - '0';
+ while (--fmtcnt >= 0) {
+ c = Py_CHARMASK(*fmt++);
+ if (!isdigit(c))
+ break;
+ if ((width*10) / 10 != width) {
+ PyErr_SetString(
+ PyExc_ValueError,
+ "width too big");
+ goto error;
+ }
+ width = width*10 + (c - '0');
+ }
+ }
+ if (c == '.') {
+ prec = 0;
+ if (--fmtcnt >= 0)
+ c = *fmt++;
+ if (c == '*') {
+ v = getnextarg(args, arglen, &argidx);
+ if (v == NULL)
+ goto error;
+ if (!PyInt_Check(v)) {
+ PyErr_SetString(
+ PyExc_TypeError,
+ "* wants int");
+ goto error;
+ }
+ prec = PyInt_AsLong(v);
+ if (prec < 0)
+ prec = 0;
+ if (--fmtcnt >= 0)
+ c = *fmt++;
+ }
+ else if (c >= 0 && isdigit(c)) {
+ prec = c - '0';
+ while (--fmtcnt >= 0) {
+ c = Py_CHARMASK(*fmt++);
+ if (!isdigit(c))
+ break;
+ if ((prec*10) / 10 != prec) {
+ PyErr_SetString(
+ PyExc_ValueError,
+ "prec too big");
+ goto error;
+ }
+ prec = prec*10 + (c - '0');
+ }
+ }
+ } /* prec */
+ if (fmtcnt >= 0) {
+ if (c == 'h' || c == 'l' || c == 'L') {
+ if (--fmtcnt >= 0)
+ c = *fmt++;
+ }
+ }
+ if (fmtcnt < 0) {
+ PyErr_SetString(PyExc_ValueError,
+ "incomplete format");
+ goto error;
+ }
+ if (c != '%') {
+ v = getnextarg(args, arglen, &argidx);
+ if (v == NULL)
+ goto error;
+ }
+ sign = 0;
+ fill = ' ';
+ switch (c) {
+ case '%':
+ pbuf = "%";
+ len = 1;
+ break;
+ case 's':
+#ifdef Py_USING_UNICODE
+ if (PyUnicode_Check(v)) {
+ fmt = fmt_start;
+ argidx = argidx_start;
+ goto unicode;
+ }
+#endif
+ temp = _PyObject_Str(v);
+#ifdef Py_USING_UNICODE
+ if (temp != NULL && PyUnicode_Check(temp)) {
+ Py_DECREF(temp);
+ fmt = fmt_start;
+ argidx = argidx_start;
+ goto unicode;
+ }
+#endif
+ /* Fall through */
+ case 'r':
+ if (c == 'r')
+ temp = PyObject_Repr(v);
+ if (temp == NULL)
+ goto error;
+ if (!PyBytes_Check(temp)) {
+ PyErr_SetString(PyExc_TypeError,
+ "%s argument has non-string str()");
+ Py_DECREF(temp);
+ goto error;
+ }
+ pbuf = PyBytes_AS_STRING(temp);
+ len = PyBytes_GET_SIZE(temp);
+ if (prec >= 0 && len > prec)
+ len = prec;
+ break;
+ case 'i':
+ case 'd':
+ case 'u':
+ case 'o':
+ case 'x':
+ case 'X':
+ if (c == 'i')
+ c = 'd';
+ isnumok = 0;
+ if (PyNumber_Check(v)) {
+ PyObject *iobj=NULL;
+
+ if (PyInt_Check(v) || (PyLong_Check(v))) {
+ iobj = v;
+ Py_INCREF(iobj);
+ }
+ else {
+ iobj = PyNumber_Int(v);
+ if (iobj==NULL) iobj = PyNumber_Long(v);
+ }
+ if (iobj!=NULL) {
+ if (PyInt_Check(iobj)) {
+ isnumok = 1;
+ pbuf = formatbuf;
+ len = formatint(pbuf,
+ sizeof(formatbuf),
+ flags, prec, c, iobj);
+ Py_DECREF(iobj);
+ if (len < 0)
+ goto error;
+ sign = 1;
+ }
+ else if (PyLong_Check(iobj)) {
+ int ilen;
+
+ isnumok = 1;
+ temp = _PyBytes_FormatLong(iobj, flags,
+ prec, c, &pbuf, &ilen);
+ Py_DECREF(iobj);
+ len = ilen;
+ if (!temp)
+ goto error;
+ sign = 1;
+ }
+ else {
+ Py_DECREF(iobj);
+ }
+ }
+ }
+ if (!isnumok) {
+ PyErr_Format(PyExc_TypeError,
+ "%%%c format: a number is required, "
+ "not %.200s", c, Py_TYPE(v)->tp_name);
+ goto error;
+ }
+ if (flags & F_ZERO)
+ fill = '0';
+ break;
+ case 'e':
+ case 'E':
+ case 'f':
+ case 'F':
+ case 'g':
+ case 'G':
+ if (c == 'F')
+ c = 'f';
+ pbuf = formatbuf;
+ len = formatfloat(pbuf, sizeof(formatbuf),
+ flags, prec, c, v);
+ if (len < 0)
+ goto error;
+ sign = 1;
+ if (flags & F_ZERO)
+ fill = '0';
+ break;
+ case 'c':
+#ifdef Py_USING_UNICODE
+ if (PyUnicode_Check(v)) {
+ fmt = fmt_start;
+ argidx = argidx_start;
+ goto unicode;
+ }
+#endif
+ pbuf = formatbuf;
+ len = formatchar(pbuf, sizeof(formatbuf), v);
+ if (len < 0)
+ goto error;
+ break;
+ default:
+ PyErr_Format(PyExc_ValueError,
+ "unsupported format character '%c' (0x%x) "
+ "at index %zd",
+ c, c,
+ (Py_ssize_t)(fmt - 1 -
+ PyBytes_AsString(format)));
+ goto error;
+ }
+ if (sign) {
+ if (*pbuf == '-' || *pbuf == '+') {
+ sign = *pbuf++;
+ len--;
+ }
+ else if (flags & F_SIGN)
+ sign = '+';
+ else if (flags & F_BLANK)
+ sign = ' ';
+ else
+ sign = 0;
+ }
+ if (width < len)
+ width = len;
+ if (rescnt - (sign != 0) < width) {
+ reslen -= rescnt;
+ rescnt = width + fmtcnt + 100;
+ reslen += rescnt;
+ if (reslen < 0) {
+ Py_DECREF(result);
+ Py_XDECREF(temp);
+ return PyErr_NoMemory();
+ }
+ if (_PyBytes_Resize(&result, reslen) < 0) {
+ Py_XDECREF(temp);
+ return NULL;
+ }
+ res = PyBytes_AS_STRING(result)
+ + reslen - rescnt;
+ }
+ if (sign) {
+ if (fill != ' ')
+ *res++ = sign;
+ rescnt--;
+ if (width > len)
+ width--;
+ }
+ if ((flags & F_ALT) && (c == 'x' || c == 'X')) {
+ assert(pbuf[0] == '0');
+ assert(pbuf[1] == c);
+ if (fill != ' ') {
+ *res++ = *pbuf++;
+ *res++ = *pbuf++;
+ }
+ rescnt -= 2;
+ width -= 2;
+ if (width < 0)
+ width = 0;
+ len -= 2;
+ }
+ if (width > len && !(flags & F_LJUST)) {
+ do {
+ --rescnt;
+ *res++ = fill;
+ } while (--width > len);
+ }
+ if (fill == ' ') {
+ if (sign)
+ *res++ = sign;
+ if ((flags & F_ALT) &&
+ (c == 'x' || c == 'X')) {
+ assert(pbuf[0] == '0');
+ assert(pbuf[1] == c);
+ *res++ = *pbuf++;
+ *res++ = *pbuf++;
+ }
+ }
+ Py_MEMCPY(res, pbuf, len);
+ res += len;
+ rescnt -= len;
+ while (--width >= len) {
+ --rescnt;
+ *res++ = ' ';
+ }
+ if (dict && (argidx < arglen) && c != '%') {
+ PyErr_SetString(PyExc_TypeError,
+ "not all arguments converted during string formatting");
+ Py_XDECREF(temp);
+ goto error;
+ }
+ Py_XDECREF(temp);
+ } /* '%' */
+ } /* until end */
+ if (argidx < arglen && !dict) {
+ PyErr_SetString(PyExc_TypeError,
+ "not all arguments converted during string formatting");
+ goto error;
+ }
+ if (args_owned) {
+ Py_DECREF(args);
+ }
+ _PyBytes_Resize(&result, reslen - rescnt);
+ return result;
+
+#ifdef Py_USING_UNICODE
+ unicode:
+ if (args_owned) {
+ Py_DECREF(args);
+ args_owned = 0;
+ }
+ /* Fiddle args right (remove the first argidx arguments) */
+ if (PyTuple_Check(orig_args) && argidx > 0) {
+ PyObject *v;
+ Py_ssize_t n = PyTuple_GET_SIZE(orig_args) - argidx;
+ v = PyTuple_New(n);
+ if (v == NULL)
+ goto error;
+ while (--n >= 0) {
+ PyObject *w = PyTuple_GET_ITEM(orig_args, n + argidx);
+ Py_INCREF(w);
+ PyTuple_SET_ITEM(v, n, w);
+ }
+ args = v;
+ } else {
+ Py_INCREF(orig_args);
+ args = orig_args;
+ }
+ args_owned = 1;
+ /* Take what we have of the result and let the Unicode formatting
+ function format the rest of the input. */
+ rescnt = res - PyBytes_AS_STRING(result);
+ if (_PyBytes_Resize(&result, rescnt))
+ goto error;
+ fmtcnt = PyBytes_GET_SIZE(format) - \
+ (fmt - PyBytes_AS_STRING(format));
+ format = PyUnicode_Decode(fmt, fmtcnt, NULL, NULL);
+ if (format == NULL)
+ goto error;
+ v = PyUnicode_Format(format, args);
+ Py_DECREF(format);
+ if (v == NULL)
+ goto error;
+ /* Paste what we have (result) to what the Unicode formatting
+ function returned (v) and return the result (or error) */
+ w = PyUnicode_Concat(result, v);
+ Py_DECREF(result);
+ Py_DECREF(v);
+ Py_DECREF(args);
+ return w;
+#endif /* Py_USING_UNICODE */
- Py_DECREF(seq);
- it->it_seq = NULL;
- return NULL;
+ error:
+ Py_DECREF(result);
+ if (args_owned) {
+ Py_DECREF(args);
+ }
+ return NULL;
}
-static PyObject *
-bytesiter_length_hint(bytesiterobject *it)
+void
+PyBytes_InternInPlace(PyObject **p)
{
- Py_ssize_t len = 0;
- if (it->it_seq)
- len = PyByteArray_GET_SIZE(it->it_seq) - it->it_index;
- return PyInt_FromSsize_t(len);
+ register PyBytesObject *s = (PyBytesObject *)(*p);
+ PyObject *t;
+ if (s == NULL || !PyBytes_Check(s))
+ Py_FatalError("PyBytes_InternInPlace: strings only please!");
+ /* If it's a string subclass, we don't really know what putting
+ it in the interned dict might do. */
+ if (!PyBytes_CheckExact(s))
+ return;
+ if (PyBytes_CHECK_INTERNED(s))
+ return;
+ if (interned == NULL) {
+ interned = PyDict_New();
+ if (interned == NULL) {
+ PyErr_Clear(); /* Don't leave an exception */
+ return;
+ }
+ }
+ t = PyDict_GetItem(interned, (PyObject *)s);
+ if (t) {
+ Py_INCREF(t);
+ Py_DECREF(*p);
+ *p = t;
+ return;
+ }
+
+ if (PyDict_SetItem(interned, (PyObject *)s, (PyObject *)s) < 0) {
+ PyErr_Clear();
+ return;
+ }
+ /* The two references in interned are not counted by refcnt.
+ The string deallocator will take care of this */
+ Py_REFCNT(s) -= 2;
+ PyBytes_CHECK_INTERNED(s) = SSTATE_INTERNED_MORTAL;
}
-PyDoc_STRVAR(length_hint_doc,
- "Private method returning an estimate of len(list(it)).");
+void
+PyBytes_InternImmortal(PyObject **p)
+{
+ PyBytes_InternInPlace(p);
+ if (PyBytes_CHECK_INTERNED(*p) != SSTATE_INTERNED_IMMORTAL) {
+ PyBytes_CHECK_INTERNED(*p) = SSTATE_INTERNED_IMMORTAL;
+ Py_INCREF(*p);
+ }
+}
-static PyMethodDef bytesiter_methods[] = {
- {"__length_hint__", (PyCFunction)bytesiter_length_hint, METH_NOARGS,
- length_hint_doc},
- {NULL, NULL} /* sentinel */
-};
-PyTypeObject PyByteArrayIter_Type = {
- PyVarObject_HEAD_INIT(&PyType_Type, 0)
- "bytearray_iterator", /* tp_name */
- sizeof(bytesiterobject), /* tp_basicsize */
- 0, /* tp_itemsize */
- /* methods */
- (destructor)bytesiter_dealloc, /* tp_dealloc */
- 0, /* tp_print */
- 0, /* tp_getattr */
- 0, /* tp_setattr */
- 0, /* tp_compare */
- 0, /* tp_repr */
- 0, /* tp_as_number */
- 0, /* tp_as_sequence */
- 0, /* tp_as_mapping */
- 0, /* tp_hash */
- 0, /* tp_call */
- 0, /* tp_str */
- PyObject_GenericGetAttr, /* tp_getattro */
- 0, /* tp_setattro */
- 0, /* tp_as_buffer */
- Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
- 0, /* tp_doc */
- (traverseproc)bytesiter_traverse, /* tp_traverse */
- 0, /* tp_clear */
- 0, /* tp_richcompare */
- 0, /* tp_weaklistoffset */
- PyObject_SelfIter, /* tp_iter */
- (iternextfunc)bytesiter_next, /* tp_iternext */
- bytesiter_methods, /* tp_methods */
- 0,
-};
+PyObject *
+PyBytes_InternFromString(const char *cp)
+{
+ PyObject *s = PyBytes_FromString(cp);
+ if (s == NULL)
+ return NULL;
+ PyBytes_InternInPlace(&s);
+ return s;
+}
-static PyObject *
-bytes_iter(PyObject *seq)
+void
+PyBytes_Fini(void)
{
- bytesiterobject *it;
+ int i;
+ for (i = 0; i < UCHAR_MAX + 1; i++) {
+ Py_XDECREF(characters[i]);
+ characters[i] = NULL;
+ }
+ Py_XDECREF(nullstring);
+ nullstring = NULL;
+}
- if (!PyByteArray_Check(seq)) {
- PyErr_BadInternalCall();
- return NULL;
- }
- it = PyObject_GC_New(bytesiterobject, &PyByteArrayIter_Type);
- if (it == NULL)
- return NULL;
- it->it_index = 0;
- Py_INCREF(seq);
- it->it_seq = (PyByteArrayObject *)seq;
- _PyObject_GC_TRACK(it);
- return (PyObject *)it;
+void _Py_ReleaseInternedStrings(void)
+{
+ PyObject *keys;
+ PyBytesObject *s;
+ Py_ssize_t i, n;
+ Py_ssize_t immortal_size = 0, mortal_size = 0;
+
+ if (interned == NULL || !PyDict_Check(interned))
+ return;
+ keys = PyDict_Keys(interned);
+ if (keys == NULL || !PyList_Check(keys)) {
+ PyErr_Clear();
+ return;
+ }
+
+ /* Since _Py_ReleaseInternedStrings() is intended to help a leak
+ detector, interned strings are not forcibly deallocated; rather, we
+ give them their stolen references back, and then clear and DECREF
+ the interned dict. */
+
+ n = PyList_GET_SIZE(keys);
+ fprintf(stderr, "releasing %" PY_FORMAT_SIZE_T "d interned strings\n",
+ n);
+ for (i = 0; i < n; i++) {
+ s = (PyBytesObject *) PyList_GET_ITEM(keys, i);
+ switch (s->ob_sstate) {
+ case SSTATE_NOT_INTERNED:
+ /* XXX Shouldn't happen */
+ break;
+ case SSTATE_INTERNED_IMMORTAL:
+ Py_REFCNT(s) += 1;
+ immortal_size += Py_SIZE(s);
+ break;
+ case SSTATE_INTERNED_MORTAL:
+ Py_REFCNT(s) += 2;
+ mortal_size += Py_SIZE(s);
+ break;
+ default:
+ Py_FatalError("Inconsistent interned string state.");
+ }
+ s->ob_sstate = SSTATE_NOT_INTERNED;
+ }
+ fprintf(stderr, "total size of all interned strings: "
+ "%" PY_FORMAT_SIZE_T "d/%" PY_FORMAT_SIZE_T "d "
+ "mortal/immortal\n", mortal_size, immortal_size);
+ Py_DECREF(keys);
+ PyDict_Clear(interned);
+ Py_DECREF(interned);
+ interned = NULL;
}
diff --git a/Objects/stringobject.c b/Objects/stringobject.c
deleted file mode 100644
index 0f4d4c3..0000000
--- a/Objects/stringobject.c
+++ /dev/null
@@ -1,5176 +0,0 @@
-/* String object implementation */
-
-#define PY_SSIZE_T_CLEAN
-
-#include "Python.h"
-
-#include "formatter_string.h"
-
-#include <ctype.h>
-
-#ifdef COUNT_ALLOCS
-int null_strings, one_strings;
-#endif
-
-static PyBytesObject *characters[UCHAR_MAX + 1];
-static PyBytesObject *nullstring;
-
-/* This dictionary holds all interned strings. Note that references to
- strings in this dictionary are *not* counted in the string's ob_refcnt.
- When the interned string reaches a refcnt of 0 the string deallocation
- function will delete the reference from this dictionary.
-
- Another way to look at this is that to say that the actual reference
- count of a string is: s->ob_refcnt + (s->ob_sstate?2:0)
-*/
-static PyObject *interned;
-
-/*
- For both PyBytes_FromString() and PyBytes_FromStringAndSize(), the
- parameter `size' denotes number of characters to allocate, not counting any
- null terminating character.
-
- For PyBytes_FromString(), the parameter `str' points to a null-terminated
- string containing exactly `size' bytes.
-
- For PyBytes_FromStringAndSize(), the parameter the parameter `str' is
- either NULL or else points to a string containing at least `size' bytes.
- For PyBytes_FromStringAndSize(), the string in the `str' parameter does
- not have to be null-terminated. (Therefore it is safe to construct a
- substring by calling `PyBytes_FromStringAndSize(origstring, substrlen)'.)
- If `str' is NULL then PyBytes_FromStringAndSize() will allocate `size+1'
- bytes (setting the last byte to the null terminating character) and you can
- fill in the data yourself. If `str' is non-NULL then the resulting
- PyString object must be treated as immutable and you must not fill in nor
- alter the data yourself, since the strings may be shared.
-
- The PyObject member `op->ob_size', which denotes the number of "extra
- items" in a variable-size object, will contain the number of bytes
- allocated for string data, not counting the null terminating character. It
- is therefore equal to the equal to the `size' parameter (for
- PyBytes_FromStringAndSize()) or the length of the string in the `str'
- parameter (for PyBytes_FromString()).
-*/
-PyObject *
-PyBytes_FromStringAndSize(const char *str, Py_ssize_t size)
-{
- register PyBytesObject *op;
- if (size < 0) {
- PyErr_SetString(PyExc_SystemError,
- "Negative size passed to PyBytes_FromStringAndSize");
- return NULL;
- }
- if (size == 0 && (op = nullstring) != NULL) {
-#ifdef COUNT_ALLOCS
- null_strings++;
-#endif
- Py_INCREF(op);
- return (PyObject *)op;
- }
- if (size == 1 && str != NULL &&
- (op = characters[*str & UCHAR_MAX]) != NULL)
- {
-#ifdef COUNT_ALLOCS
- one_strings++;
-#endif
- Py_INCREF(op);
- return (PyObject *)op;
- }
-
- /* Inline PyObject_NewVar */
- op = (PyBytesObject *)PyObject_MALLOC(sizeof(PyBytesObject) + size);
- if (op == NULL)
- return PyErr_NoMemory();
- PyObject_INIT_VAR(op, &PyBytes_Type, size);
- op->ob_shash = -1;
- op->ob_sstate = SSTATE_NOT_INTERNED;
- if (str != NULL)
- Py_MEMCPY(op->ob_sval, str, size);
- op->ob_sval[size] = '\0';
- /* share short strings */
- if (size == 0) {
- PyObject *t = (PyObject *)op;
- PyBytes_InternInPlace(&t);
- op = (PyBytesObject *)t;
- nullstring = op;
- Py_INCREF(op);
- } else if (size == 1 && str != NULL) {
- PyObject *t = (PyObject *)op;
- PyBytes_InternInPlace(&t);
- op = (PyBytesObject *)t;
- characters[*str & UCHAR_MAX] = op;
- Py_INCREF(op);
- }
- return (PyObject *) op;
-}
-
-PyObject *
-PyBytes_FromString(const char *str)
-{
- register size_t size;
- register PyBytesObject *op;
-
- assert(str != NULL);
- size = strlen(str);
- if (size > PY_SSIZE_T_MAX) {
- PyErr_SetString(PyExc_OverflowError,
- "string is too long for a Python string");
- return NULL;
- }
- if (size == 0 && (op = nullstring) != NULL) {
-#ifdef COUNT_ALLOCS
- null_strings++;
-#endif
- Py_INCREF(op);
- return (PyObject *)op;
- }
- if (size == 1 && (op = characters[*str & UCHAR_MAX]) != NULL) {
-#ifdef COUNT_ALLOCS
- one_strings++;
-#endif
- Py_INCREF(op);
- return (PyObject *)op;
- }
-
- /* Inline PyObject_NewVar */
- op = (PyBytesObject *)PyObject_MALLOC(sizeof(PyBytesObject) + size);
- if (op == NULL)
- return PyErr_NoMemory();
- PyObject_INIT_VAR(op, &PyBytes_Type, size);
- op->ob_shash = -1;
- op->ob_sstate = SSTATE_NOT_INTERNED;
- Py_MEMCPY(op->ob_sval, str, size+1);
- /* share short strings */
- if (size == 0) {
- PyObject *t = (PyObject *)op;
- PyBytes_InternInPlace(&t);
- op = (PyBytesObject *)t;
- nullstring = op;
- Py_INCREF(op);
- } else if (size == 1) {
- PyObject *t = (PyObject *)op;
- PyBytes_InternInPlace(&t);
- op = (PyBytesObject *)t;
- characters[*str & UCHAR_MAX] = op;
- Py_INCREF(op);
- }
- return (PyObject *) op;
-}
-
-PyObject *
-PyBytes_FromFormatV(const char *format, va_list vargs)
-{
- va_list count;
- Py_ssize_t n = 0;
- const char* f;
- char *s;
- PyObject* string;
-
-#ifdef VA_LIST_IS_ARRAY
- Py_MEMCPY(count, vargs, sizeof(va_list));
-#else
-#ifdef __va_copy
- __va_copy(count, vargs);
-#else
- count = vargs;
-#endif
-#endif
- /* step 1: figure out how large a buffer we need */
- for (f = format; *f; f++) {
- if (*f == '%') {
- const char* p = f;
- while (*++f && *f != '%' && !isalpha(Py_CHARMASK(*f)))
- ;
-
- /* skip the 'l' or 'z' in {%ld, %zd, %lu, %zu} since
- * they don't affect the amount of space we reserve.
- */
- if ((*f == 'l' || *f == 'z') &&
- (f[1] == 'd' || f[1] == 'u'))
- ++f;
-
- switch (*f) {
- case 'c':
- (void)va_arg(count, int);
- /* fall through... */
- case '%':
- n++;
- break;
- case 'd': case 'u': case 'i': case 'x':
- (void) va_arg(count, int);
- /* 20 bytes is enough to hold a 64-bit
- integer. Decimal takes the most space.
- This isn't enough for octal. */
- n += 20;
- break;
- case 's':
- s = va_arg(count, char*);
- n += strlen(s);
- break;
- case 'p':
- (void) va_arg(count, int);
- /* maximum 64-bit pointer representation:
- * 0xffffffffffffffff
- * so 19 characters is enough.
- * XXX I count 18 -- what's the extra for?
- */
- n += 19;
- break;
- default:
- /* if we stumble upon an unknown
- formatting code, copy the rest of
- the format string to the output
- string. (we cannot just skip the
- code, since there's no way to know
- what's in the argument list) */
- n += strlen(p);
- goto expand;
- }
- } else
- n++;
- }
- expand:
- /* step 2: fill the buffer */
- /* Since we've analyzed how much space we need for the worst case,
- use sprintf directly instead of the slower PyOS_snprintf. */
- string = PyBytes_FromStringAndSize(NULL, n);
- if (!string)
- return NULL;
-
- s = PyBytes_AsString(string);
-
- for (f = format; *f; f++) {
- if (*f == '%') {
- const char* p = f++;
- Py_ssize_t i;
- int longflag = 0;
- int size_tflag = 0;
- /* parse the width.precision part (we're only
- interested in the precision value, if any) */
- n = 0;
- while (isdigit(Py_CHARMASK(*f)))
- n = (n*10) + *f++ - '0';
- if (*f == '.') {
- f++;
- n = 0;
- while (isdigit(Py_CHARMASK(*f)))
- n = (n*10) + *f++ - '0';
- }
- while (*f && *f != '%' && !isalpha(Py_CHARMASK(*f)))
- f++;
- /* handle the long flag, but only for %ld and %lu.
- others can be added when necessary. */
- if (*f == 'l' && (f[1] == 'd' || f[1] == 'u')) {
- longflag = 1;
- ++f;
- }
- /* handle the size_t flag. */
- if (*f == 'z' && (f[1] == 'd' || f[1] == 'u')) {
- size_tflag = 1;
- ++f;
- }
-
- switch (*f) {
- case 'c':
- *s++ = va_arg(vargs, int);
- break;
- case 'd':
- if (longflag)
- sprintf(s, "%ld", va_arg(vargs, long));
- else if (size_tflag)
- sprintf(s, "%" PY_FORMAT_SIZE_T "d",
- va_arg(vargs, Py_ssize_t));
- else
- sprintf(s, "%d", va_arg(vargs, int));
- s += strlen(s);
- break;
- case 'u':
- if (longflag)
- sprintf(s, "%lu",
- va_arg(vargs, unsigned long));
- else if (size_tflag)
- sprintf(s, "%" PY_FORMAT_SIZE_T "u",
- va_arg(vargs, size_t));
- else
- sprintf(s, "%u",
- va_arg(vargs, unsigned int));
- s += strlen(s);
- break;
- case 'i':
- sprintf(s, "%i", va_arg(vargs, int));
- s += strlen(s);
- break;
- case 'x':
- sprintf(s, "%x", va_arg(vargs, int));
- s += strlen(s);
- break;
- case 's':
- p = va_arg(vargs, char*);
- i = strlen(p);
- if (n > 0 && i > n)
- i = n;
- Py_MEMCPY(s, p, i);
- s += i;
- break;
- case 'p':
- sprintf(s, "%p", va_arg(vargs, void*));
- /* %p is ill-defined: ensure leading 0x. */
- if (s[1] == 'X')
- s[1] = 'x';
- else if (s[1] != 'x') {
- memmove(s+2, s, strlen(s)+1);
- s[0] = '0';
- s[1] = 'x';
- }
- s += strlen(s);
- break;
- case '%':
- *s++ = '%';
- break;
- default:
- strcpy(s, p);
- s += strlen(s);
- goto end;
- }
- } else
- *s++ = *f;
- }
-
- end:
- _PyBytes_Resize(&string, s - PyBytes_AS_STRING(string));
- return string;
-}
-
-PyObject *
-PyBytes_FromFormat(const char *format, ...)
-{
- PyObject* ret;
- va_list vargs;
-
-#ifdef HAVE_STDARG_PROTOTYPES
- va_start(vargs, format);
-#else
- va_start(vargs);
-#endif
- ret = PyBytes_FromFormatV(format, vargs);
- va_end(vargs);
- return ret;
-}
-
-
-PyObject *PyBytes_Decode(const char *s,
- Py_ssize_t size,
- const char *encoding,
- const char *errors)
-{
- PyObject *v, *str;
-
- str = PyBytes_FromStringAndSize(s, size);
- if (str == NULL)
- return NULL;
- v = PyBytes_AsDecodedString(str, encoding, errors);
- Py_DECREF(str);
- return v;
-}
-
-PyObject *PyBytes_AsDecodedObject(PyObject *str,
- const char *encoding,
- const char *errors)
-{
- PyObject *v;
-
- if (!PyBytes_Check(str)) {
- PyErr_BadArgument();
- goto onError;
- }
-
- if (encoding == NULL) {
-#ifdef Py_USING_UNICODE
- encoding = PyUnicode_GetDefaultEncoding();
-#else
- PyErr_SetString(PyExc_ValueError, "no encoding specified");
- goto onError;
-#endif
- }
-
- /* Decode via the codec registry */
- v = PyCodec_Decode(str, encoding, errors);
- if (v == NULL)
- goto onError;
-
- return v;
-
- onError:
- return NULL;
-}
-
-PyObject *PyBytes_AsDecodedString(PyObject *str,
- const char *encoding,
- const char *errors)
-{
- PyObject *v;
-
- v = PyBytes_AsDecodedObject(str, encoding, errors);
- if (v == NULL)
- goto onError;
-
-#ifdef Py_USING_UNICODE
- /* Convert Unicode to a string using the default encoding */
- if (PyUnicode_Check(v)) {
- PyObject *temp = v;
- v = PyUnicode_AsEncodedString(v, NULL, NULL);
- Py_DECREF(temp);
- if (v == NULL)
- goto onError;
- }
-#endif
- if (!PyBytes_Check(v)) {
- PyErr_Format(PyExc_TypeError,
- "decoder did not return a string object (type=%.400s)",
- Py_TYPE(v)->tp_name);
- Py_DECREF(v);
- goto onError;
- }
-
- return v;
-
- onError:
- return NULL;
-}
-
-PyObject *PyBytes_Encode(const char *s,
- Py_ssize_t size,
- const char *encoding,
- const char *errors)
-{
- PyObject *v, *str;
-
- str = PyBytes_FromStringAndSize(s, size);
- if (str == NULL)
- return NULL;
- v = PyBytes_AsEncodedString(str, encoding, errors);
- Py_DECREF(str);
- return v;
-}
-
-PyObject *PyBytes_AsEncodedObject(PyObject *str,
- const char *encoding,
- const char *errors)
-{
- PyObject *v;
-
- if (!PyBytes_Check(str)) {
- PyErr_BadArgument();
- goto onError;
- }
-
- if (encoding == NULL) {
-#ifdef Py_USING_UNICODE
- encoding = PyUnicode_GetDefaultEncoding();
-#else
- PyErr_SetString(PyExc_ValueError, "no encoding specified");
- goto onError;
-#endif
- }
-
- /* Encode via the codec registry */
- v = PyCodec_Encode(str, encoding, errors);
- if (v == NULL)
- goto onError;
-
- return v;
-
- onError:
- return NULL;
-}
-
-PyObject *PyBytes_AsEncodedString(PyObject *str,
- const char *encoding,
- const char *errors)
-{
- PyObject *v;
-
- v = PyBytes_AsEncodedObject(str, encoding, errors);
- if (v == NULL)
- goto onError;
-
-#ifdef Py_USING_UNICODE
- /* Convert Unicode to a string using the default encoding */
- if (PyUnicode_Check(v)) {
- PyObject *temp = v;
- v = PyUnicode_AsEncodedString(v, NULL, NULL);
- Py_DECREF(temp);
- if (v == NULL)
- goto onError;
- }
-#endif
- if (!PyBytes_Check(v)) {
- PyErr_Format(PyExc_TypeError,
- "encoder did not return a string object (type=%.400s)",
- Py_TYPE(v)->tp_name);
- Py_DECREF(v);
- goto onError;
- }
-
- return v;
-
- onError:
- return NULL;
-}
-
-static void
-string_dealloc(PyObject *op)
-{
- switch (PyBytes_CHECK_INTERNED(op)) {
- case SSTATE_NOT_INTERNED:
- break;
-
- case SSTATE_INTERNED_MORTAL:
- /* revive dead object temporarily for DelItem */
- Py_REFCNT(op) = 3;
- if (PyDict_DelItem(interned, op) != 0)
- Py_FatalError(
- "deletion of interned string failed");
- break;
-
- case SSTATE_INTERNED_IMMORTAL:
- Py_FatalError("Immortal interned string died.");
-
- default:
- Py_FatalError("Inconsistent interned string state.");
- }
- Py_TYPE(op)->tp_free(op);
-}
-
-/* Unescape a backslash-escaped string. If unicode is non-zero,
- the string is a u-literal. If recode_encoding is non-zero,
- the string is UTF-8 encoded and should be re-encoded in the
- specified encoding. */
-
-PyObject *PyBytes_DecodeEscape(const char *s,
- Py_ssize_t len,
- const char *errors,
- Py_ssize_t unicode,
- const char *recode_encoding)
-{
- int c;
- char *p, *buf;
- const char *end;
- PyObject *v;
- Py_ssize_t newlen = recode_encoding ? 4*len:len;
- v = PyBytes_FromStringAndSize((char *)NULL, newlen);
- if (v == NULL)
- return NULL;
- p = buf = PyBytes_AsString(v);
- end = s + len;
- while (s < end) {
- if (*s != '\\') {
- non_esc:
-#ifdef Py_USING_UNICODE
- if (recode_encoding && (*s & 0x80)) {
- PyObject *u, *w;
- char *r;
- const char* t;
- Py_ssize_t rn;
- t = s;
- /* Decode non-ASCII bytes as UTF-8. */
- while (t < end && (*t & 0x80)) t++;
- u = PyUnicode_DecodeUTF8(s, t - s, errors);
- if(!u) goto failed;
-
- /* Recode them in target encoding. */
- w = PyUnicode_AsEncodedString(
- u, recode_encoding, errors);
- Py_DECREF(u);
- if (!w) goto failed;
-
- /* Append bytes to output buffer. */
- assert(PyBytes_Check(w));
- r = PyBytes_AS_STRING(w);
- rn = PyBytes_GET_SIZE(w);
- Py_MEMCPY(p, r, rn);
- p += rn;
- Py_DECREF(w);
- s = t;
- } else {
- *p++ = *s++;
- }
-#else
- *p++ = *s++;
-#endif
- continue;
- }
- s++;
- if (s==end) {
- PyErr_SetString(PyExc_ValueError,
- "Trailing \\ in string");
- goto failed;
- }
- switch (*s++) {
- /* XXX This assumes ASCII! */
- case '\n': break;
- case '\\': *p++ = '\\'; break;
- case '\'': *p++ = '\''; break;
- case '\"': *p++ = '\"'; break;
- case 'b': *p++ = '\b'; break;
- case 'f': *p++ = '\014'; break; /* FF */
- case 't': *p++ = '\t'; break;
- case 'n': *p++ = '\n'; break;
- case 'r': *p++ = '\r'; break;
- case 'v': *p++ = '\013'; break; /* VT */
- case 'a': *p++ = '\007'; break; /* BEL, not classic C */
- case '0': case '1': case '2': case '3':
- case '4': case '5': case '6': case '7':
- c = s[-1] - '0';
- if (s < end && '0' <= *s && *s <= '7') {
- c = (c<<3) + *s++ - '0';
- if (s < end && '0' <= *s && *s <= '7')
- c = (c<<3) + *s++ - '0';
- }
- *p++ = c;
- break;
- case 'x':
- if (s+1 < end &&
- isxdigit(Py_CHARMASK(s[0])) &&
- isxdigit(Py_CHARMASK(s[1])))
- {
- unsigned int x = 0;
- c = Py_CHARMASK(*s);
- s++;
- if (isdigit(c))
- x = c - '0';
- else if (islower(c))
- x = 10 + c - 'a';
- else
- x = 10 + c - 'A';
- x = x << 4;
- c = Py_CHARMASK(*s);
- s++;
- if (isdigit(c))
- x += c - '0';
- else if (islower(c))
- x += 10 + c - 'a';
- else
- x += 10 + c - 'A';
- *p++ = x;
- break;
- }
- if (!errors || strcmp(errors, "strict") == 0) {
- PyErr_SetString(PyExc_ValueError,
- "invalid \\x escape");
- goto failed;
- }
- if (strcmp(errors, "replace") == 0) {
- *p++ = '?';
- } else if (strcmp(errors, "ignore") == 0)
- /* do nothing */;
- else {
- PyErr_Format(PyExc_ValueError,
- "decoding error; "
- "unknown error handling code: %.400s",
- errors);
- goto failed;
- }
-#ifndef Py_USING_UNICODE
- case 'u':
- case 'U':
- case 'N':
- if (unicode) {
- PyErr_SetString(PyExc_ValueError,
- "Unicode escapes not legal "
- "when Unicode disabled");
- goto failed;
- }
-#endif
- default:
- *p++ = '\\';
- s--;
- goto non_esc; /* an arbitry number of unescaped
- UTF-8 bytes may follow. */
- }
- }
- if (p-buf < newlen)
- _PyBytes_Resize(&v, p - buf);
- return v;
- failed:
- Py_DECREF(v);
- return NULL;
-}
-
-/* -------------------------------------------------------------------- */
-/* object api */
-
-static Py_ssize_t
-string_getsize(register PyObject *op)
-{
- char *s;
- Py_ssize_t len;
- if (PyBytes_AsStringAndSize(op, &s, &len))
- return -1;
- return len;
-}
-
-static /*const*/ char *
-string_getbuffer(register PyObject *op)
-{
- char *s;
- Py_ssize_t len;
- if (PyBytes_AsStringAndSize(op, &s, &len))
- return NULL;
- return s;
-}
-
-Py_ssize_t
-PyBytes_Size(register PyObject *op)
-{
- if (!PyBytes_Check(op))
- return string_getsize(op);
- return Py_SIZE(op);
-}
-
-/*const*/ char *
-PyBytes_AsString(register PyObject *op)
-{
- if (!PyBytes_Check(op))
- return string_getbuffer(op);
- return ((PyBytesObject *)op) -> ob_sval;
-}
-
-int
-PyBytes_AsStringAndSize(register PyObject *obj,
- register char **s,
- register Py_ssize_t *len)
-{
- if (s == NULL) {
- PyErr_BadInternalCall();
- return -1;
- }
-
- if (!PyBytes_Check(obj)) {
-#ifdef Py_USING_UNICODE
- if (PyUnicode_Check(obj)) {
- obj = _PyUnicode_AsDefaultEncodedString(obj, NULL);
- if (obj == NULL)
- return -1;
- }
- else
-#endif
- {
- PyErr_Format(PyExc_TypeError,
- "expected string or Unicode object, "
- "%.200s found", Py_TYPE(obj)->tp_name);
- return -1;
- }
- }
-
- *s = PyBytes_AS_STRING(obj);
- if (len != NULL)
- *len = PyBytes_GET_SIZE(obj);
- else if (strlen(*s) != (size_t)PyBytes_GET_SIZE(obj)) {
- PyErr_SetString(PyExc_TypeError,
- "expected string without null bytes");
- return -1;
- }
- return 0;
-}
-
-/* -------------------------------------------------------------------- */
-/* Methods */
-
-#include "stringlib/stringdefs.h"
-#include "stringlib/fastsearch.h"
-
-#include "stringlib/count.h"
-#include "stringlib/find.h"
-#include "stringlib/partition.h"
-
-#define _Py_InsertThousandsGrouping _PyBytes_InsertThousandsGrouping
-#include "stringlib/localeutil.h"
-
-
-
-static int
-string_print(PyBytesObject *op, FILE *fp, int flags)
-{
- Py_ssize_t i, str_len;
- char c;
- int quote;
-
- /* XXX Ought to check for interrupts when writing long strings */
- if (! PyBytes_CheckExact(op)) {
- int ret;
- /* A str subclass may have its own __str__ method. */
- op = (PyBytesObject *) PyObject_Str((PyObject *)op);
- if (op == NULL)
- return -1;
- ret = string_print(op, fp, flags);
- Py_DECREF(op);
- return ret;
- }
- if (flags & Py_PRINT_RAW) {
- char *data = op->ob_sval;
- Py_ssize_t size = Py_SIZE(op);
- Py_BEGIN_ALLOW_THREADS
- while (size > INT_MAX) {
- /* Very long strings cannot be written atomically.
- * But don't write exactly INT_MAX bytes at a time
- * to avoid memory aligment issues.
- */
- const int chunk_size = INT_MAX & ~0x3FFF;
- fwrite(data, 1, chunk_size, fp);
- data += chunk_size;
- size -= chunk_size;
- }
-#ifdef __VMS
- if (size) fwrite(data, (int)size, 1, fp);
-#else
- fwrite(data, 1, (int)size, fp);
-#endif
- Py_END_ALLOW_THREADS
- return 0;
- }
-
- /* figure out which quote to use; single is preferred */
- quote = '\'';
- if (memchr(op->ob_sval, '\'', Py_SIZE(op)) &&
- !memchr(op->ob_sval, '"', Py_SIZE(op)))
- quote = '"';
-
- str_len = Py_SIZE(op);
- Py_BEGIN_ALLOW_THREADS
- fputc(quote, fp);
- for (i = 0; i < str_len; i++) {
- /* Since strings are immutable and the caller should have a
- reference, accessing the interal buffer should not be an issue
- with the GIL released. */
- c = op->ob_sval[i];
- if (c == quote || c == '\\')
- fprintf(fp, "\\%c", c);
- else if (c == '\t')
- fprintf(fp, "\\t");
- else if (c == '\n')
- fprintf(fp, "\\n");
- else if (c == '\r')
- fprintf(fp, "\\r");
- else if (c < ' ' || c >= 0x7f)
- fprintf(fp, "\\x%02x", c & 0xff);
- else
- fputc(c, fp);
- }
- fputc(quote, fp);
- Py_END_ALLOW_THREADS
- return 0;
-}
-
-PyObject *
-PyBytes_Repr(PyObject *obj, int smartquotes)
-{
- register PyBytesObject* op = (PyBytesObject*) obj;
- size_t newsize = 2 + 4 * Py_SIZE(op);
- PyObject *v;
- if (newsize > PY_SSIZE_T_MAX || newsize / 4 != Py_SIZE(op)) {
- PyErr_SetString(PyExc_OverflowError,
- "string is too large to make repr");
- return NULL;
- }
- v = PyBytes_FromStringAndSize((char *)NULL, newsize);
- if (v == NULL) {
- return NULL;
- }
- else {
- register Py_ssize_t i;
- register char c;
- register char *p;
- int quote;
-
- /* figure out which quote to use; single is preferred */
- quote = '\'';
- if (smartquotes &&
- memchr(op->ob_sval, '\'', Py_SIZE(op)) &&
- !memchr(op->ob_sval, '"', Py_SIZE(op)))
- quote = '"';
-
- p = PyBytes_AS_STRING(v);
- *p++ = quote;
- for (i = 0; i < Py_SIZE(op); i++) {
- /* There's at least enough room for a hex escape
- and a closing quote. */
- assert(newsize - (p - PyBytes_AS_STRING(v)) >= 5);
- c = op->ob_sval[i];
- if (c == quote || c == '\\')
- *p++ = '\\', *p++ = c;
- else if (c == '\t')
- *p++ = '\\', *p++ = 't';
- else if (c == '\n')
- *p++ = '\\', *p++ = 'n';
- else if (c == '\r')
- *p++ = '\\', *p++ = 'r';
- else if (c < ' ' || c >= 0x7f) {
- /* For performance, we don't want to call
- PyOS_snprintf here (extra layers of
- function call). */
- sprintf(p, "\\x%02x", c & 0xff);
- p += 4;
- }
- else
- *p++ = c;
- }
- assert(newsize - (p - PyBytes_AS_STRING(v)) >= 1);
- *p++ = quote;
- *p = '\0';
- _PyBytes_Resize(
- &v, (p - PyBytes_AS_STRING(v)));
- return v;
- }
-}
-
-static PyObject *
-string_repr(PyObject *op)
-{
- return PyBytes_Repr(op, 1);
-}
-
-static PyObject *
-string_str(PyObject *s)
-{
- assert(PyBytes_Check(s));
- if (PyBytes_CheckExact(s)) {
- Py_INCREF(s);
- return s;
- }
- else {
- /* Subtype -- return genuine string with the same value. */
- PyBytesObject *t = (PyBytesObject *) s;
- return PyBytes_FromStringAndSize(t->ob_sval, Py_SIZE(t));
- }
-}
-
-static Py_ssize_t
-string_length(PyBytesObject *a)
-{
- return Py_SIZE(a);
-}
-
-static PyObject *
-string_concat(register PyBytesObject *a, register PyObject *bb)
-{
- register Py_ssize_t size;
- register PyBytesObject *op;
- if (!PyBytes_Check(bb)) {
-#ifdef Py_USING_UNICODE
- if (PyUnicode_Check(bb))
- return PyUnicode_Concat((PyObject *)a, bb);
-#endif
- if (PyByteArray_Check(bb))
- return PyByteArray_Concat((PyObject *)a, bb);
- PyErr_Format(PyExc_TypeError,
- "cannot concatenate 'str' and '%.200s' objects",
- Py_TYPE(bb)->tp_name);
- return NULL;
- }
-#define b ((PyBytesObject *)bb)
- /* Optimize cases with empty left or right operand */
- if ((Py_SIZE(a) == 0 || Py_SIZE(b) == 0) &&
- PyBytes_CheckExact(a) && PyBytes_CheckExact(b)) {
- if (Py_SIZE(a) == 0) {
- Py_INCREF(bb);
- return bb;
- }
- Py_INCREF(a);
- return (PyObject *)a;
- }
- size = Py_SIZE(a) + Py_SIZE(b);
- if (size < 0) {
- PyErr_SetString(PyExc_OverflowError,
- "strings are too large to concat");
- return NULL;
- }
-
- /* Inline PyObject_NewVar */
- op = (PyBytesObject *)PyObject_MALLOC(sizeof(PyBytesObject) + size);
- if (op == NULL)
- return PyErr_NoMemory();
- PyObject_INIT_VAR(op, &PyBytes_Type, size);
- op->ob_shash = -1;
- op->ob_sstate = SSTATE_NOT_INTERNED;
- Py_MEMCPY(op->ob_sval, a->ob_sval, Py_SIZE(a));
- Py_MEMCPY(op->ob_sval + Py_SIZE(a), b->ob_sval, Py_SIZE(b));
- op->ob_sval[size] = '\0';
- return (PyObject *) op;
-#undef b
-}
-
-static PyObject *
-string_repeat(register PyBytesObject *a, register Py_ssize_t n)
-{
- register Py_ssize_t i;
- register Py_ssize_t j;
- register Py_ssize_t size;
- register PyBytesObject *op;
- size_t nbytes;
- if (n < 0)
- n = 0;
- /* watch out for overflows: the size can overflow int,
- * and the # of bytes needed can overflow size_t
- */
- size = Py_SIZE(a) * n;
- if (n && size / n != Py_SIZE(a)) {
- PyErr_SetString(PyExc_OverflowError,
- "repeated string is too long");
- return NULL;
- }
- if (size == Py_SIZE(a) && PyBytes_CheckExact(a)) {
- Py_INCREF(a);
- return (PyObject *)a;
- }
- nbytes = (size_t)size;
- if (nbytes + sizeof(PyBytesObject) <= nbytes) {
- PyErr_SetString(PyExc_OverflowError,
- "repeated string is too long");
- return NULL;
- }
- op = (PyBytesObject *)
- PyObject_MALLOC(sizeof(PyBytesObject) + nbytes);
- if (op == NULL)
- return PyErr_NoMemory();
- PyObject_INIT_VAR(op, &PyBytes_Type, size);
- op->ob_shash = -1;
- op->ob_sstate = SSTATE_NOT_INTERNED;
- op->ob_sval[size] = '\0';
- if (Py_SIZE(a) == 1 && n > 0) {
- memset(op->ob_sval, a->ob_sval[0] , n);
- return (PyObject *) op;
- }
- i = 0;
- if (i < size) {
- Py_MEMCPY(op->ob_sval, a->ob_sval, Py_SIZE(a));
- i = Py_SIZE(a);
- }
- while (i < size) {
- j = (i <= size-i) ? i : size-i;
- Py_MEMCPY(op->ob_sval+i, op->ob_sval, j);
- i += j;
- }
- return (PyObject *) op;
-}
-
-/* String slice a[i:j] consists of characters a[i] ... a[j-1] */
-
-static PyObject *
-string_slice(register PyBytesObject *a, register Py_ssize_t i,
- register Py_ssize_t j)
- /* j -- may be negative! */
-{
- if (i < 0)
- i = 0;
- if (j < 0)
- j = 0; /* Avoid signed/unsigned bug in next line */
- if (j > Py_SIZE(a))
- j = Py_SIZE(a);
- if (i == 0 && j == Py_SIZE(a) && PyBytes_CheckExact(a)) {
- /* It's the same as a */
- Py_INCREF(a);
- return (PyObject *)a;
- }
- if (j < i)
- j = i;
- return PyBytes_FromStringAndSize(a->ob_sval + i, j-i);
-}
-
-static int
-string_contains(PyObject *str_obj, PyObject *sub_obj)
-{
- if (!PyBytes_CheckExact(sub_obj)) {
-#ifdef Py_USING_UNICODE
- if (PyUnicode_Check(sub_obj))
- return PyUnicode_Contains(str_obj, sub_obj);
-#endif
- if (!PyBytes_Check(sub_obj)) {
- PyErr_Format(PyExc_TypeError,
- "'in <string>' requires string as left operand, "
- "not %.200s", Py_TYPE(sub_obj)->tp_name);
- return -1;
- }
- }
-
- return stringlib_contains_obj(str_obj, sub_obj);
-}
-
-static PyObject *
-string_item(PyBytesObject *a, register Py_ssize_t i)
-{
- char pchar;
- PyObject *v;
- if (i < 0 || i >= Py_SIZE(a)) {
- PyErr_SetString(PyExc_IndexError, "string index out of range");
- return NULL;
- }
- pchar = a->ob_sval[i];
- v = (PyObject *)characters[pchar & UCHAR_MAX];
- if (v == NULL)
- v = PyBytes_FromStringAndSize(&pchar, 1);
- else {
-#ifdef COUNT_ALLOCS
- one_strings++;
-#endif
- Py_INCREF(v);
- }
- return v;
-}
-
-static PyObject*
-string_richcompare(PyBytesObject *a, PyBytesObject *b, int op)
-{
- int c;
- Py_ssize_t len_a, len_b;
- Py_ssize_t min_len;
- PyObject *result;
-
- /* Make sure both arguments are strings. */
- if (!(PyBytes_Check(a) && PyBytes_Check(b))) {
- result = Py_NotImplemented;
- goto out;
- }
- if (a == b) {
- switch (op) {
- case Py_EQ:case Py_LE:case Py_GE:
- result = Py_True;
- goto out;
- case Py_NE:case Py_LT:case Py_GT:
- result = Py_False;
- goto out;
- }
- }
- if (op == Py_EQ) {
- /* Supporting Py_NE here as well does not save
- much time, since Py_NE is rarely used. */
- if (Py_SIZE(a) == Py_SIZE(b)
- && (a->ob_sval[0] == b->ob_sval[0]
- && memcmp(a->ob_sval, b->ob_sval, Py_SIZE(a)) == 0)) {
- result = Py_True;
- } else {
- result = Py_False;
- }
- goto out;
- }
- len_a = Py_SIZE(a); len_b = Py_SIZE(b);
- min_len = (len_a < len_b) ? len_a : len_b;
- if (min_len > 0) {
- c = Py_CHARMASK(*a->ob_sval) - Py_CHARMASK(*b->ob_sval);
- if (c==0)
- c = memcmp(a->ob_sval, b->ob_sval, min_len);
- } else
- c = 0;
- if (c == 0)
- c = (len_a < len_b) ? -1 : (len_a > len_b) ? 1 : 0;
- switch (op) {
- case Py_LT: c = c < 0; break;
- case Py_LE: c = c <= 0; break;
- case Py_EQ: assert(0); break; /* unreachable */
- case Py_NE: c = c != 0; break;
- case Py_GT: c = c > 0; break;
- case Py_GE: c = c >= 0; break;
- default:
- result = Py_NotImplemented;
- goto out;
- }
- result = c ? Py_True : Py_False;
- out:
- Py_INCREF(result);
- return result;
-}
-
-int
-_PyBytes_Eq(PyObject *o1, PyObject *o2)
-{
- PyBytesObject *a = (PyBytesObject*) o1;
- PyBytesObject *b = (PyBytesObject*) o2;
- return Py_SIZE(a) == Py_SIZE(b)
- && *a->ob_sval == *b->ob_sval
- && memcmp(a->ob_sval, b->ob_sval, Py_SIZE(a)) == 0;
-}
-
-static long
-string_hash(PyBytesObject *a)
-{
- register Py_ssize_t len;
- register unsigned char *p;
- register long x;
-
- if (a->ob_shash != -1)
- return a->ob_shash;
- len = Py_SIZE(a);
- p = (unsigned char *) a->ob_sval;
- x = *p << 7;
- while (--len >= 0)
- x = (1000003*x) ^ *p++;
- x ^= Py_SIZE(a);
- if (x == -1)
- x = -2;
- a->ob_shash = x;
- return x;
-}
-
-static PyObject*
-string_subscript(PyBytesObject* self, PyObject* item)
-{
- if (PyIndex_Check(item)) {
- Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
- if (i == -1 && PyErr_Occurred())
- return NULL;
- if (i < 0)
- i += PyBytes_GET_SIZE(self);
- return string_item(self, i);
- }
- else if (PySlice_Check(item)) {
- Py_ssize_t start, stop, step, slicelength, cur, i;
- char* source_buf;
- char* result_buf;
- PyObject* result;
-
- if (PySlice_GetIndicesEx((PySliceObject*)item,
- PyBytes_GET_SIZE(self),
- &start, &stop, &step, &slicelength) < 0) {
- return NULL;
- }
-
- if (slicelength <= 0) {
- return PyBytes_FromStringAndSize("", 0);
- }
- else if (start == 0 && step == 1 &&
- slicelength == PyBytes_GET_SIZE(self) &&
- PyBytes_CheckExact(self)) {
- Py_INCREF(self);
- return (PyObject *)self;
- }
- else if (step == 1) {
- return PyBytes_FromStringAndSize(
- PyBytes_AS_STRING(self) + start,
- slicelength);
- }
- else {
- source_buf = PyBytes_AsString((PyObject*)self);
- result_buf = (char *)PyMem_Malloc(slicelength);
- if (result_buf == NULL)
- return PyErr_NoMemory();
-
- for (cur = start, i = 0; i < slicelength;
- cur += step, i++) {
- result_buf[i] = source_buf[cur];
- }
-
- result = PyBytes_FromStringAndSize(result_buf,
- slicelength);
- PyMem_Free(result_buf);
- return result;
- }
- }
- else {
- PyErr_Format(PyExc_TypeError,
- "string indices must be integers, not %.200s",
- Py_TYPE(item)->tp_name);
- return NULL;
- }
-}
-
-static Py_ssize_t
-string_buffer_getreadbuf(PyBytesObject *self, Py_ssize_t index, const void **ptr)
-{
- if ( index != 0 ) {
- PyErr_SetString(PyExc_SystemError,
- "accessing non-existent string segment");
- return -1;
- }
- *ptr = (void *)self->ob_sval;
- return Py_SIZE(self);
-}
-
-static Py_ssize_t
-string_buffer_getwritebuf(PyBytesObject *self, Py_ssize_t index, const void **ptr)
-{
- PyErr_SetString(PyExc_TypeError,
- "Cannot use string as modifiable buffer");
- return -1;
-}
-
-static Py_ssize_t
-string_buffer_getsegcount(PyBytesObject *self, Py_ssize_t *lenp)
-{
- if ( lenp )
- *lenp = Py_SIZE(self);
- return 1;
-}
-
-static Py_ssize_t
-string_buffer_getcharbuf(PyBytesObject *self, Py_ssize_t index, const char **ptr)
-{
- if ( index != 0 ) {
- PyErr_SetString(PyExc_SystemError,
- "accessing non-existent string segment");
- return -1;
- }
- *ptr = self->ob_sval;
- return Py_SIZE(self);
-}
-
-static int
-string_buffer_getbuffer(PyBytesObject *self, Py_buffer *view, int flags)
-{
- return PyBuffer_FillInfo(view, (void *)self->ob_sval, Py_SIZE(self),
- 0, flags);
-}
-
-static PySequenceMethods string_as_sequence = {
- (lenfunc)string_length, /*sq_length*/
- (binaryfunc)string_concat, /*sq_concat*/
- (ssizeargfunc)string_repeat, /*sq_repeat*/
- (ssizeargfunc)string_item, /*sq_item*/
- (ssizessizeargfunc)string_slice, /*sq_slice*/
- 0, /*sq_ass_item*/
- 0, /*sq_ass_slice*/
- (objobjproc)string_contains /*sq_contains*/
-};
-
-static PyMappingMethods string_as_mapping = {
- (lenfunc)string_length,
- (binaryfunc)string_subscript,
- 0,
-};
-
-static PyBufferProcs string_as_buffer = {
- (readbufferproc)string_buffer_getreadbuf,
- (writebufferproc)string_buffer_getwritebuf,
- (segcountproc)string_buffer_getsegcount,
- (charbufferproc)string_buffer_getcharbuf,
- (getbufferproc)string_buffer_getbuffer,
- 0, /* XXX */
-};
-
-
-
-#define LEFTSTRIP 0
-#define RIGHTSTRIP 1
-#define BOTHSTRIP 2
-
-/* Arrays indexed by above */
-static const char *stripformat[] = {"|O:lstrip", "|O:rstrip", "|O:strip"};
-
-#define STRIPNAME(i) (stripformat[i]+3)
-
-
-/* Don't call if length < 2 */
-#define Py_STRING_MATCH(target, offset, pattern, length) \
- (target[offset] == pattern[0] && \
- target[offset+length-1] == pattern[length-1] && \
- !memcmp(target+offset+1, pattern+1, length-2) )
-
-
-/* Overallocate the initial list to reduce the number of reallocs for small
- split sizes. Eg, "A A A A A A A A A A".split() (10 elements) has three
- resizes, to sizes 4, 8, then 16. Most observed string splits are for human
- text (roughly 11 words per line) and field delimited data (usually 1-10
- fields). For large strings the split algorithms are bandwidth limited
- so increasing the preallocation likely will not improve things.*/
-
-#define MAX_PREALLOC 12
-
-/* 5 splits gives 6 elements */
-#define PREALLOC_SIZE(maxsplit) \
- (maxsplit >= MAX_PREALLOC ? MAX_PREALLOC : maxsplit+1)
-
-#define SPLIT_APPEND(data, left, right) \
- str = PyBytes_FromStringAndSize((data) + (left), \
- (right) - (left)); \
- if (str == NULL) \
- goto onError; \
- if (PyList_Append(list, str)) { \
- Py_DECREF(str); \
- goto onError; \
- } \
- else \
- Py_DECREF(str);
-
-#define SPLIT_ADD(data, left, right) { \
- str = PyBytes_FromStringAndSize((data) + (left), \
- (right) - (left)); \
- if (str == NULL) \
- goto onError; \
- if (count < MAX_PREALLOC) { \
- PyList_SET_ITEM(list, count, str); \
- } else { \
- if (PyList_Append(list, str)) { \
- Py_DECREF(str); \
- goto onError; \
- } \
- else \
- Py_DECREF(str); \
- } \
- count++; }
-
-/* Always force the list to the expected size. */
-#define FIX_PREALLOC_SIZE(list) Py_SIZE(list) = count
-
-#define SKIP_SPACE(s, i, len) { while (i<len && isspace(Py_CHARMASK(s[i]))) i++; }
-#define SKIP_NONSPACE(s, i, len) { while (i<len && !isspace(Py_CHARMASK(s[i]))) i++; }
-#define RSKIP_SPACE(s, i) { while (i>=0 && isspace(Py_CHARMASK(s[i]))) i--; }
-#define RSKIP_NONSPACE(s, i) { while (i>=0 && !isspace(Py_CHARMASK(s[i]))) i--; }
-
-Py_LOCAL_INLINE(PyObject *)
-split_whitespace(PyBytesObject *self, Py_ssize_t len, Py_ssize_t maxsplit)
-{
- const char *s = PyBytes_AS_STRING(self);
- Py_ssize_t i, j, count=0;
- PyObject *str;
- PyObject *list = PyList_New(PREALLOC_SIZE(maxsplit));
-
- if (list == NULL)
- return NULL;
-
- i = j = 0;
-
- while (maxsplit-- > 0) {
- SKIP_SPACE(s, i, len);
- if (i==len) break;
- j = i; i++;
- SKIP_NONSPACE(s, i, len);
- if (j == 0 && i == len && PyBytes_CheckExact(self)) {
- /* No whitespace in self, so just use it as list[0] */
- Py_INCREF(self);
- PyList_SET_ITEM(list, 0, (PyObject *)self);
- count++;
- break;
- }
- SPLIT_ADD(s, j, i);
- }
-
- if (i < len) {
- /* Only occurs when maxsplit was reached */
- /* Skip any remaining whitespace and copy to end of string */
- SKIP_SPACE(s, i, len);
- if (i != len)
- SPLIT_ADD(s, i, len);
- }
- FIX_PREALLOC_SIZE(list);
- return list;
- onError:
- Py_DECREF(list);
- return NULL;
-}
-
-Py_LOCAL_INLINE(PyObject *)
-split_char(PyBytesObject *self, Py_ssize_t len, char ch, Py_ssize_t maxcount)
-{
- const char *s = PyBytes_AS_STRING(self);
- register Py_ssize_t i, j, count=0;
- PyObject *str;
- PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
-
- if (list == NULL)
- return NULL;
-
- i = j = 0;
- while ((j < len) && (maxcount-- > 0)) {
- for(; j<len; j++) {
- /* I found that using memchr makes no difference */
- if (s[j] == ch) {
- SPLIT_ADD(s, i, j);
- i = j = j + 1;
- break;
- }
- }
- }
- if (i == 0 && count == 0 && PyBytes_CheckExact(self)) {
- /* ch not in self, so just use self as list[0] */
- Py_INCREF(self);
- PyList_SET_ITEM(list, 0, (PyObject *)self);
- count++;
- }
- else if (i <= len) {
- SPLIT_ADD(s, i, len);
- }
- FIX_PREALLOC_SIZE(list);
- return list;
-
- onError:
- Py_DECREF(list);
- return NULL;
-}
-
-PyDoc_STRVAR(split__doc__,
-"S.split([sep [,maxsplit]]) -> list of strings\n\
-\n\
-Return a list of the words in the string S, using sep as the\n\
-delimiter string. If maxsplit is given, at most maxsplit\n\
-splits are done. If sep is not specified or is None, any\n\
-whitespace string is a separator and empty strings are removed\n\
-from the result.");
-
-static PyObject *
-string_split(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t len = PyBytes_GET_SIZE(self), n, i, j;
- Py_ssize_t maxsplit = -1, count=0;
- const char *s = PyBytes_AS_STRING(self), *sub;
- PyObject *list, *str, *subobj = Py_None;
-#ifdef USE_FAST
- Py_ssize_t pos;
-#endif
-
- if (!PyArg_ParseTuple(args, "|On:split", &subobj, &maxsplit))
- return NULL;
- if (maxsplit < 0)
- maxsplit = PY_SSIZE_T_MAX;
- if (subobj == Py_None)
- return split_whitespace(self, len, maxsplit);
- if (PyBytes_Check(subobj)) {
- sub = PyBytes_AS_STRING(subobj);
- n = PyBytes_GET_SIZE(subobj);
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(subobj))
- return PyUnicode_Split((PyObject *)self, subobj, maxsplit);
-#endif
- else if (PyObject_AsCharBuffer(subobj, &sub, &n))
- return NULL;
-
- if (n == 0) {
- PyErr_SetString(PyExc_ValueError, "empty separator");
- return NULL;
- }
- else if (n == 1)
- return split_char(self, len, sub[0], maxsplit);
-
- list = PyList_New(PREALLOC_SIZE(maxsplit));
- if (list == NULL)
- return NULL;
-
-#ifdef USE_FAST
- i = j = 0;
- while (maxsplit-- > 0) {
- pos = fastsearch(s+i, len-i, sub, n, FAST_SEARCH);
- if (pos < 0)
- break;
- j = i+pos;
- SPLIT_ADD(s, i, j);
- i = j + n;
- }
-#else
- i = j = 0;
- while ((j+n <= len) && (maxsplit-- > 0)) {
- for (; j+n <= len; j++) {
- if (Py_STRING_MATCH(s, j, sub, n)) {
- SPLIT_ADD(s, i, j);
- i = j = j + n;
- break;
- }
- }
- }
-#endif
- SPLIT_ADD(s, i, len);
- FIX_PREALLOC_SIZE(list);
- return list;
-
- onError:
- Py_DECREF(list);
- return NULL;
-}
-
-PyDoc_STRVAR(partition__doc__,
-"S.partition(sep) -> (head, sep, tail)\n\
-\n\
-Searches for the separator sep in S, and returns the part before it,\n\
-the separator itself, and the part after it. If the separator is not\n\
-found, returns S and two empty strings.");
-
-static PyObject *
-string_partition(PyBytesObject *self, PyObject *sep_obj)
-{
- const char *sep;
- Py_ssize_t sep_len;
-
- if (PyBytes_Check(sep_obj)) {
- sep = PyBytes_AS_STRING(sep_obj);
- sep_len = PyBytes_GET_SIZE(sep_obj);
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(sep_obj))
- return PyUnicode_Partition((PyObject *) self, sep_obj);
-#endif
- else if (PyObject_AsCharBuffer(sep_obj, &sep, &sep_len))
- return NULL;
-
- return stringlib_partition(
- (PyObject*) self,
- PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
- sep_obj, sep, sep_len
- );
-}
-
-PyDoc_STRVAR(rpartition__doc__,
-"S.rpartition(sep) -> (tail, sep, head)\n\
-\n\
-Searches for the separator sep in S, starting at the end of S, and returns\n\
-the part before it, the separator itself, and the part after it. If the\n\
-separator is not found, returns two empty strings and S.");
-
-static PyObject *
-string_rpartition(PyBytesObject *self, PyObject *sep_obj)
-{
- const char *sep;
- Py_ssize_t sep_len;
-
- if (PyBytes_Check(sep_obj)) {
- sep = PyBytes_AS_STRING(sep_obj);
- sep_len = PyBytes_GET_SIZE(sep_obj);
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(sep_obj))
- return PyUnicode_Partition((PyObject *) self, sep_obj);
-#endif
- else if (PyObject_AsCharBuffer(sep_obj, &sep, &sep_len))
- return NULL;
-
- return stringlib_rpartition(
- (PyObject*) self,
- PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
- sep_obj, sep, sep_len
- );
-}
-
-Py_LOCAL_INLINE(PyObject *)
-rsplit_whitespace(PyBytesObject *self, Py_ssize_t len, Py_ssize_t maxsplit)
-{
- const char *s = PyBytes_AS_STRING(self);
- Py_ssize_t i, j, count=0;
- PyObject *str;
- PyObject *list = PyList_New(PREALLOC_SIZE(maxsplit));
-
- if (list == NULL)
- return NULL;
-
- i = j = len-1;
-
- while (maxsplit-- > 0) {
- RSKIP_SPACE(s, i);
- if (i<0) break;
- j = i; i--;
- RSKIP_NONSPACE(s, i);
- if (j == len-1 && i < 0 && PyBytes_CheckExact(self)) {
- /* No whitespace in self, so just use it as list[0] */
- Py_INCREF(self);
- PyList_SET_ITEM(list, 0, (PyObject *)self);
- count++;
- break;
- }
- SPLIT_ADD(s, i + 1, j + 1);
- }
- if (i >= 0) {
- /* Only occurs when maxsplit was reached */
- /* Skip any remaining whitespace and copy to beginning of string */
- RSKIP_SPACE(s, i);
- if (i >= 0)
- SPLIT_ADD(s, 0, i + 1);
-
- }
- FIX_PREALLOC_SIZE(list);
- if (PyList_Reverse(list) < 0)
- goto onError;
- return list;
- onError:
- Py_DECREF(list);
- return NULL;
-}
-
-Py_LOCAL_INLINE(PyObject *)
-rsplit_char(PyBytesObject *self, Py_ssize_t len, char ch, Py_ssize_t maxcount)
-{
- const char *s = PyBytes_AS_STRING(self);
- register Py_ssize_t i, j, count=0;
- PyObject *str;
- PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
-
- if (list == NULL)
- return NULL;
-
- i = j = len - 1;
- while ((i >= 0) && (maxcount-- > 0)) {
- for (; i >= 0; i--) {
- if (s[i] == ch) {
- SPLIT_ADD(s, i + 1, j + 1);
- j = i = i - 1;
- break;
- }
- }
- }
- if (i < 0 && count == 0 && PyBytes_CheckExact(self)) {
- /* ch not in self, so just use self as list[0] */
- Py_INCREF(self);
- PyList_SET_ITEM(list, 0, (PyObject *)self);
- count++;
- }
- else if (j >= -1) {
- SPLIT_ADD(s, 0, j + 1);
- }
- FIX_PREALLOC_SIZE(list);
- if (PyList_Reverse(list) < 0)
- goto onError;
- return list;
-
- onError:
- Py_DECREF(list);
- return NULL;
-}
-
-PyDoc_STRVAR(rsplit__doc__,
-"S.rsplit([sep [,maxsplit]]) -> list of strings\n\
-\n\
-Return a list of the words in the string S, using sep as the\n\
-delimiter string, starting at the end of the string and working\n\
-to the front. If maxsplit is given, at most maxsplit splits are\n\
-done. If sep is not specified or is None, any whitespace string\n\
-is a separator.");
-
-static PyObject *
-string_rsplit(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t len = PyBytes_GET_SIZE(self), n, i, j;
- Py_ssize_t maxsplit = -1, count=0;
- const char *s, *sub;
- PyObject *list, *str, *subobj = Py_None;
-
- if (!PyArg_ParseTuple(args, "|On:rsplit", &subobj, &maxsplit))
- return NULL;
- if (maxsplit < 0)
- maxsplit = PY_SSIZE_T_MAX;
- if (subobj == Py_None)
- return rsplit_whitespace(self, len, maxsplit);
- if (PyBytes_Check(subobj)) {
- sub = PyBytes_AS_STRING(subobj);
- n = PyBytes_GET_SIZE(subobj);
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(subobj))
- return PyUnicode_RSplit((PyObject *)self, subobj, maxsplit);
-#endif
- else if (PyObject_AsCharBuffer(subobj, &sub, &n))
- return NULL;
-
- if (n == 0) {
- PyErr_SetString(PyExc_ValueError, "empty separator");
- return NULL;
- }
- else if (n == 1)
- return rsplit_char(self, len, sub[0], maxsplit);
-
- list = PyList_New(PREALLOC_SIZE(maxsplit));
- if (list == NULL)
- return NULL;
-
- j = len;
- i = j - n;
-
- s = PyBytes_AS_STRING(self);
- while ( (i >= 0) && (maxsplit-- > 0) ) {
- for (; i>=0; i--) {
- if (Py_STRING_MATCH(s, i, sub, n)) {
- SPLIT_ADD(s, i + n, j);
- j = i;
- i -= n;
- break;
- }
- }
- }
- SPLIT_ADD(s, 0, j);
- FIX_PREALLOC_SIZE(list);
- if (PyList_Reverse(list) < 0)
- goto onError;
- return list;
-
-onError:
- Py_DECREF(list);
- return NULL;
-}
-
-
-PyDoc_STRVAR(join__doc__,
-"S.join(sequence) -> string\n\
-\n\
-Return a string which is the concatenation of the strings in the\n\
-sequence. The separator between elements is S.");
-
-static PyObject *
-string_join(PyBytesObject *self, PyObject *orig)
-{
- char *sep = PyBytes_AS_STRING(self);
- const Py_ssize_t seplen = PyBytes_GET_SIZE(self);
- PyObject *res = NULL;
- char *p;
- Py_ssize_t seqlen = 0;
- size_t sz = 0;
- Py_ssize_t i;
- PyObject *seq, *item;
-
- seq = PySequence_Fast(orig, "");
- if (seq == NULL) {
- return NULL;
- }
-
- seqlen = PySequence_Size(seq);
- if (seqlen == 0) {
- Py_DECREF(seq);
- return PyBytes_FromString("");
- }
- if (seqlen == 1) {
- item = PySequence_Fast_GET_ITEM(seq, 0);
- if (PyBytes_CheckExact(item) || PyUnicode_CheckExact(item)) {
- Py_INCREF(item);
- Py_DECREF(seq);
- return item;
- }
- }
-
- /* There are at least two things to join, or else we have a subclass
- * of the builtin types in the sequence.
- * Do a pre-pass to figure out the total amount of space we'll
- * need (sz), see whether any argument is absurd, and defer to
- * the Unicode join if appropriate.
- */
- for (i = 0; i < seqlen; i++) {
- const size_t old_sz = sz;
- item = PySequence_Fast_GET_ITEM(seq, i);
- if (!PyBytes_Check(item)){
-#ifdef Py_USING_UNICODE
- if (PyUnicode_Check(item)) {
- /* Defer to Unicode join.
- * CAUTION: There's no gurantee that the
- * original sequence can be iterated over
- * again, so we must pass seq here.
- */
- PyObject *result;
- result = PyUnicode_Join((PyObject *)self, seq);
- Py_DECREF(seq);
- return result;
- }
-#endif
- PyErr_Format(PyExc_TypeError,
- "sequence item %zd: expected string,"
- " %.80s found",
- i, Py_TYPE(item)->tp_name);
- Py_DECREF(seq);
- return NULL;
- }
- sz += PyBytes_GET_SIZE(item);
- if (i != 0)
- sz += seplen;
- if (sz < old_sz || sz > PY_SSIZE_T_MAX) {
- PyErr_SetString(PyExc_OverflowError,
- "join() result is too long for a Python string");
- Py_DECREF(seq);
- return NULL;
- }
- }
-
- /* Allocate result space. */
- res = PyBytes_FromStringAndSize((char*)NULL, sz);
- if (res == NULL) {
- Py_DECREF(seq);
- return NULL;
- }
-
- /* Catenate everything. */
- p = PyBytes_AS_STRING(res);
- for (i = 0; i < seqlen; ++i) {
- size_t n;
- item = PySequence_Fast_GET_ITEM(seq, i);
- n = PyBytes_GET_SIZE(item);
- Py_MEMCPY(p, PyBytes_AS_STRING(item), n);
- p += n;
- if (i < seqlen - 1) {
- Py_MEMCPY(p, sep, seplen);
- p += seplen;
- }
- }
-
- Py_DECREF(seq);
- return res;
-}
-
-PyObject *
-_PyBytes_Join(PyObject *sep, PyObject *x)
-{
- assert(sep != NULL && PyBytes_Check(sep));
- assert(x != NULL);
- return string_join((PyBytesObject *)sep, x);
-}
-
-Py_LOCAL_INLINE(void)
-string_adjust_indices(Py_ssize_t *start, Py_ssize_t *end, Py_ssize_t len)
-{
- if (*end > len)
- *end = len;
- else if (*end < 0)
- *end += len;
- if (*end < 0)
- *end = 0;
- if (*start < 0)
- *start += len;
- if (*start < 0)
- *start = 0;
-}
-
-Py_LOCAL_INLINE(Py_ssize_t)
-string_find_internal(PyBytesObject *self, PyObject *args, int dir)
-{
- PyObject *subobj;
- const char *sub;
- Py_ssize_t sub_len;
- Py_ssize_t start=0, end=PY_SSIZE_T_MAX;
- PyObject *obj_start=Py_None, *obj_end=Py_None;
-
- if (!PyArg_ParseTuple(args, "O|OO:find/rfind/index/rindex", &subobj,
- &obj_start, &obj_end))
- return -2;
- /* To support None in "start" and "end" arguments, meaning
- the same as if they were not passed.
- */
- if (obj_start != Py_None)
- if (!_PyEval_SliceIndex(obj_start, &start))
- return -2;
- if (obj_end != Py_None)
- if (!_PyEval_SliceIndex(obj_end, &end))
- return -2;
-
- if (PyBytes_Check(subobj)) {
- sub = PyBytes_AS_STRING(subobj);
- sub_len = PyBytes_GET_SIZE(subobj);
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(subobj))
- return PyUnicode_Find(
- (PyObject *)self, subobj, start, end, dir);
-#endif
- else if (PyObject_AsCharBuffer(subobj, &sub, &sub_len))
- /* XXX - the "expected a character buffer object" is pretty
- confusing for a non-expert. remap to something else ? */
- return -2;
-
- if (dir > 0)
- return stringlib_find_slice(
- PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
- sub, sub_len, start, end);
- else
- return stringlib_rfind_slice(
- PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
- sub, sub_len, start, end);
-}
-
-
-PyDoc_STRVAR(find__doc__,
-"S.find(sub [,start [,end]]) -> int\n\
-\n\
-Return the lowest index in S where substring sub is found,\n\
-such that sub is contained within s[start:end]. Optional\n\
-arguments start and end are interpreted as in slice notation.\n\
-\n\
-Return -1 on failure.");
-
-static PyObject *
-string_find(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t result = string_find_internal(self, args, +1);
- if (result == -2)
- return NULL;
- return PyInt_FromSsize_t(result);
-}
-
-
-PyDoc_STRVAR(index__doc__,
-"S.index(sub [,start [,end]]) -> int\n\
-\n\
-Like S.find() but raise ValueError when the substring is not found.");
-
-static PyObject *
-string_index(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t result = string_find_internal(self, args, +1);
- if (result == -2)
- return NULL;
- if (result == -1) {
- PyErr_SetString(PyExc_ValueError,
- "substring not found");
- return NULL;
- }
- return PyInt_FromSsize_t(result);
-}
-
-
-PyDoc_STRVAR(rfind__doc__,
-"S.rfind(sub [,start [,end]]) -> int\n\
-\n\
-Return the highest index in S where substring sub is found,\n\
-such that sub is contained within s[start:end]. Optional\n\
-arguments start and end are interpreted as in slice notation.\n\
-\n\
-Return -1 on failure.");
-
-static PyObject *
-string_rfind(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t result = string_find_internal(self, args, -1);
- if (result == -2)
- return NULL;
- return PyInt_FromSsize_t(result);
-}
-
-
-PyDoc_STRVAR(rindex__doc__,
-"S.rindex(sub [,start [,end]]) -> int\n\
-\n\
-Like S.rfind() but raise ValueError when the substring is not found.");
-
-static PyObject *
-string_rindex(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t result = string_find_internal(self, args, -1);
- if (result == -2)
- return NULL;
- if (result == -1) {
- PyErr_SetString(PyExc_ValueError,
- "substring not found");
- return NULL;
- }
- return PyInt_FromSsize_t(result);
-}
-
-
-Py_LOCAL_INLINE(PyObject *)
-do_xstrip(PyBytesObject *self, int striptype, PyObject *sepobj)
-{
- char *s = PyBytes_AS_STRING(self);
- Py_ssize_t len = PyBytes_GET_SIZE(self);
- char *sep = PyBytes_AS_STRING(sepobj);
- Py_ssize_t seplen = PyBytes_GET_SIZE(sepobj);
- Py_ssize_t i, j;
-
- i = 0;
- if (striptype != RIGHTSTRIP) {
- while (i < len && memchr(sep, Py_CHARMASK(s[i]), seplen)) {
- i++;
- }
- }
-
- j = len;
- if (striptype != LEFTSTRIP) {
- do {
- j--;
- } while (j >= i && memchr(sep, Py_CHARMASK(s[j]), seplen));
- j++;
- }
-
- if (i == 0 && j == len && PyBytes_CheckExact(self)) {
- Py_INCREF(self);
- return (PyObject*)self;
- }
- else
- return PyBytes_FromStringAndSize(s+i, j-i);
-}
-
-
-Py_LOCAL_INLINE(PyObject *)
-do_strip(PyBytesObject *self, int striptype)
-{
- char *s = PyBytes_AS_STRING(self);
- Py_ssize_t len = PyBytes_GET_SIZE(self), i, j;
-
- i = 0;
- if (striptype != RIGHTSTRIP) {
- while (i < len && isspace(Py_CHARMASK(s[i]))) {
- i++;
- }
- }
-
- j = len;
- if (striptype != LEFTSTRIP) {
- do {
- j--;
- } while (j >= i && isspace(Py_CHARMASK(s[j])));
- j++;
- }
-
- if (i == 0 && j == len && PyBytes_CheckExact(self)) {
- Py_INCREF(self);
- return (PyObject*)self;
- }
- else
- return PyBytes_FromStringAndSize(s+i, j-i);
-}
-
-
-Py_LOCAL_INLINE(PyObject *)
-do_argstrip(PyBytesObject *self, int striptype, PyObject *args)
-{
- PyObject *sep = NULL;
-
- if (!PyArg_ParseTuple(args, (char *)stripformat[striptype], &sep))
- return NULL;
-
- if (sep != NULL && sep != Py_None) {
- if (PyBytes_Check(sep))
- return do_xstrip(self, striptype, sep);
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(sep)) {
- PyObject *uniself = PyUnicode_FromObject((PyObject *)self);
- PyObject *res;
- if (uniself==NULL)
- return NULL;
- res = _PyUnicode_XStrip((PyUnicodeObject *)uniself,
- striptype, sep);
- Py_DECREF(uniself);
- return res;
- }
-#endif
- PyErr_Format(PyExc_TypeError,
-#ifdef Py_USING_UNICODE
- "%s arg must be None, str or unicode",
-#else
- "%s arg must be None or str",
-#endif
- STRIPNAME(striptype));
- return NULL;
- }
-
- return do_strip(self, striptype);
-}
-
-
-PyDoc_STRVAR(strip__doc__,
-"S.strip([chars]) -> string or unicode\n\
-\n\
-Return a copy of the string S with leading and trailing\n\
-whitespace removed.\n\
-If chars is given and not None, remove characters in chars instead.\n\
-If chars is unicode, S will be converted to unicode before stripping");
-
-static PyObject *
-string_strip(PyBytesObject *self, PyObject *args)
-{
- if (PyTuple_GET_SIZE(args) == 0)
- return do_strip(self, BOTHSTRIP); /* Common case */
- else
- return do_argstrip(self, BOTHSTRIP, args);
-}
-
-
-PyDoc_STRVAR(lstrip__doc__,
-"S.lstrip([chars]) -> string or unicode\n\
-\n\
-Return a copy of the string S with leading whitespace removed.\n\
-If chars is given and not None, remove characters in chars instead.\n\
-If chars is unicode, S will be converted to unicode before stripping");
-
-static PyObject *
-string_lstrip(PyBytesObject *self, PyObject *args)
-{
- if (PyTuple_GET_SIZE(args) == 0)
- return do_strip(self, LEFTSTRIP); /* Common case */
- else
- return do_argstrip(self, LEFTSTRIP, args);
-}
-
-
-PyDoc_STRVAR(rstrip__doc__,
-"S.rstrip([chars]) -> string or unicode\n\
-\n\
-Return a copy of the string S with trailing whitespace removed.\n\
-If chars is given and not None, remove characters in chars instead.\n\
-If chars is unicode, S will be converted to unicode before stripping");
-
-static PyObject *
-string_rstrip(PyBytesObject *self, PyObject *args)
-{
- if (PyTuple_GET_SIZE(args) == 0)
- return do_strip(self, RIGHTSTRIP); /* Common case */
- else
- return do_argstrip(self, RIGHTSTRIP, args);
-}
-
-
-PyDoc_STRVAR(lower__doc__,
-"S.lower() -> string\n\
-\n\
-Return a copy of the string S converted to lowercase.");
-
-/* _tolower and _toupper are defined by SUSv2, but they're not ISO C */
-#ifndef _tolower
-#define _tolower tolower
-#endif
-
-static PyObject *
-string_lower(PyBytesObject *self)
-{
- char *s;
- Py_ssize_t i, n = PyBytes_GET_SIZE(self);
- PyObject *newobj;
-
- newobj = PyBytes_FromStringAndSize(NULL, n);
- if (!newobj)
- return NULL;
-
- s = PyBytes_AS_STRING(newobj);
-
- Py_MEMCPY(s, PyBytes_AS_STRING(self), n);
-
- for (i = 0; i < n; i++) {
- int c = Py_CHARMASK(s[i]);
- if (isupper(c))
- s[i] = _tolower(c);
- }
-
- return newobj;
-}
-
-PyDoc_STRVAR(upper__doc__,
-"S.upper() -> string\n\
-\n\
-Return a copy of the string S converted to uppercase.");
-
-#ifndef _toupper
-#define _toupper toupper
-#endif
-
-static PyObject *
-string_upper(PyBytesObject *self)
-{
- char *s;
- Py_ssize_t i, n = PyBytes_GET_SIZE(self);
- PyObject *newobj;
-
- newobj = PyBytes_FromStringAndSize(NULL, n);
- if (!newobj)
- return NULL;
-
- s = PyBytes_AS_STRING(newobj);
-
- Py_MEMCPY(s, PyBytes_AS_STRING(self), n);
-
- for (i = 0; i < n; i++) {
- int c = Py_CHARMASK(s[i]);
- if (islower(c))
- s[i] = _toupper(c);
- }
-
- return newobj;
-}
-
-PyDoc_STRVAR(title__doc__,
-"S.title() -> string\n\
-\n\
-Return a titlecased version of S, i.e. words start with uppercase\n\
-characters, all remaining cased characters have lowercase.");
-
-static PyObject*
-string_title(PyBytesObject *self)
-{
- char *s = PyBytes_AS_STRING(self), *s_new;
- Py_ssize_t i, n = PyBytes_GET_SIZE(self);
- int previous_is_cased = 0;
- PyObject *newobj;
-
- newobj = PyBytes_FromStringAndSize(NULL, n);
- if (newobj == NULL)
- return NULL;
- s_new = PyBytes_AsString(newobj);
- for (i = 0; i < n; i++) {
- int c = Py_CHARMASK(*s++);
- if (islower(c)) {
- if (!previous_is_cased)
- c = toupper(c);
- previous_is_cased = 1;
- } else if (isupper(c)) {
- if (previous_is_cased)
- c = tolower(c);
- previous_is_cased = 1;
- } else
- previous_is_cased = 0;
- *s_new++ = c;
- }
- return newobj;
-}
-
-PyDoc_STRVAR(capitalize__doc__,
-"S.capitalize() -> string\n\
-\n\
-Return a copy of the string S with only its first character\n\
-capitalized.");
-
-static PyObject *
-string_capitalize(PyBytesObject *self)
-{
- char *s = PyBytes_AS_STRING(self), *s_new;
- Py_ssize_t i, n = PyBytes_GET_SIZE(self);
- PyObject *newobj;
-
- newobj = PyBytes_FromStringAndSize(NULL, n);
- if (newobj == NULL)
- return NULL;
- s_new = PyBytes_AsString(newobj);
- if (0 < n) {
- int c = Py_CHARMASK(*s++);
- if (islower(c))
- *s_new = toupper(c);
- else
- *s_new = c;
- s_new++;
- }
- for (i = 1; i < n; i++) {
- int c = Py_CHARMASK(*s++);
- if (isupper(c))
- *s_new = tolower(c);
- else
- *s_new = c;
- s_new++;
- }
- return newobj;
-}
-
-
-PyDoc_STRVAR(count__doc__,
-"S.count(sub[, start[, end]]) -> int\n\
-\n\
-Return the number of non-overlapping occurrences of substring sub in\n\
-string S[start:end]. Optional arguments start and end are interpreted\n\
-as in slice notation.");
-
-static PyObject *
-string_count(PyBytesObject *self, PyObject *args)
-{
- PyObject *sub_obj;
- const char *str = PyBytes_AS_STRING(self), *sub;
- Py_ssize_t sub_len;
- Py_ssize_t start = 0, end = PY_SSIZE_T_MAX;
-
- if (!PyArg_ParseTuple(args, "O|O&O&:count", &sub_obj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
- return NULL;
-
- if (PyBytes_Check(sub_obj)) {
- sub = PyBytes_AS_STRING(sub_obj);
- sub_len = PyBytes_GET_SIZE(sub_obj);
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(sub_obj)) {
- Py_ssize_t count;
- count = PyUnicode_Count((PyObject *)self, sub_obj, start, end);
- if (count == -1)
- return NULL;
- else
- return PyInt_FromSsize_t(count);
- }
-#endif
- else if (PyObject_AsCharBuffer(sub_obj, &sub, &sub_len))
- return NULL;
-
- string_adjust_indices(&start, &end, PyBytes_GET_SIZE(self));
-
- return PyInt_FromSsize_t(
- stringlib_count(str + start, end - start, sub, sub_len)
- );
-}
-
-PyDoc_STRVAR(swapcase__doc__,
-"S.swapcase() -> string\n\
-\n\
-Return a copy of the string S with uppercase characters\n\
-converted to lowercase and vice versa.");
-
-static PyObject *
-string_swapcase(PyBytesObject *self)
-{
- char *s = PyBytes_AS_STRING(self), *s_new;
- Py_ssize_t i, n = PyBytes_GET_SIZE(self);
- PyObject *newobj;
-
- newobj = PyBytes_FromStringAndSize(NULL, n);
- if (newobj == NULL)
- return NULL;
- s_new = PyBytes_AsString(newobj);
- for (i = 0; i < n; i++) {
- int c = Py_CHARMASK(*s++);
- if (islower(c)) {
- *s_new = toupper(c);
- }
- else if (isupper(c)) {
- *s_new = tolower(c);
- }
- else
- *s_new = c;
- s_new++;
- }
- return newobj;
-}
-
-
-PyDoc_STRVAR(translate__doc__,
-"S.translate(table [,deletechars]) -> string\n\
-\n\
-Return a copy of the string S, where all characters occurring\n\
-in the optional argument deletechars are removed, and the\n\
-remaining characters have been mapped through the given\n\
-translation table, which must be a string of length 256.");
-
-static PyObject *
-string_translate(PyBytesObject *self, PyObject *args)
-{
- register char *input, *output;
- const char *table;
- register Py_ssize_t i, c, changed = 0;
- PyObject *input_obj = (PyObject*)self;
- const char *output_start, *del_table=NULL;
- Py_ssize_t inlen, tablen, dellen = 0;
- PyObject *result;
- int trans_table[256];
- PyObject *tableobj, *delobj = NULL;
-
- if (!PyArg_UnpackTuple(args, "translate", 1, 2,
- &tableobj, &delobj))
- return NULL;
-
- if (PyBytes_Check(tableobj)) {
- table = PyBytes_AS_STRING(tableobj);
- tablen = PyBytes_GET_SIZE(tableobj);
- }
- else if (tableobj == Py_None) {
- table = NULL;
- tablen = 256;
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(tableobj)) {
- /* Unicode .translate() does not support the deletechars
- parameter; instead a mapping to None will cause characters
- to be deleted. */
- if (delobj != NULL) {
- PyErr_SetString(PyExc_TypeError,
- "deletions are implemented differently for unicode");
- return NULL;
- }
- return PyUnicode_Translate((PyObject *)self, tableobj, NULL);
- }
-#endif
- else if (PyObject_AsCharBuffer(tableobj, &table, &tablen))
- return NULL;
-
- if (tablen != 256) {
- PyErr_SetString(PyExc_ValueError,
- "translation table must be 256 characters long");
- return NULL;
- }
-
- if (delobj != NULL) {
- if (PyBytes_Check(delobj)) {
- del_table = PyBytes_AS_STRING(delobj);
- dellen = PyBytes_GET_SIZE(delobj);
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(delobj)) {
- PyErr_SetString(PyExc_TypeError,
- "deletions are implemented differently for unicode");
- return NULL;
- }
-#endif
- else if (PyObject_AsCharBuffer(delobj, &del_table, &dellen))
- return NULL;
- }
- else {
- del_table = NULL;
- dellen = 0;
- }
-
- inlen = PyBytes_GET_SIZE(input_obj);
- result = PyBytes_FromStringAndSize((char *)NULL, inlen);
- if (result == NULL)
- return NULL;
- output_start = output = PyBytes_AsString(result);
- input = PyBytes_AS_STRING(input_obj);
-
- if (dellen == 0 && table != NULL) {
- /* If no deletions are required, use faster code */
- for (i = inlen; --i >= 0; ) {
- c = Py_CHARMASK(*input++);
- if (Py_CHARMASK((*output++ = table[c])) != c)
- changed = 1;
- }
- if (changed || !PyBytes_CheckExact(input_obj))
- return result;
- Py_DECREF(result);
- Py_INCREF(input_obj);
- return input_obj;
- }
-
- if (table == NULL) {
- for (i = 0; i < 256; i++)
- trans_table[i] = Py_CHARMASK(i);
- } else {
- for (i = 0; i < 256; i++)
- trans_table[i] = Py_CHARMASK(table[i]);
- }
-
- for (i = 0; i < dellen; i++)
- trans_table[(int) Py_CHARMASK(del_table[i])] = -1;
-
- for (i = inlen; --i >= 0; ) {
- c = Py_CHARMASK(*input++);
- if (trans_table[c] != -1)
- if (Py_CHARMASK(*output++ = (char)trans_table[c]) == c)
- continue;
- changed = 1;
- }
- if (!changed && PyBytes_CheckExact(input_obj)) {
- Py_DECREF(result);
- Py_INCREF(input_obj);
- return input_obj;
- }
- /* Fix the size of the resulting string */
- if (inlen > 0)
- _PyBytes_Resize(&result, output - output_start);
- return result;
-}
-
-
-#define FORWARD 1
-#define REVERSE -1
-
-/* find and count characters and substrings */
-
-#define findchar(target, target_len, c) \
- ((char *)memchr((const void *)(target), c, target_len))
-
-/* String ops must return a string. */
-/* If the object is subclass of string, create a copy */
-Py_LOCAL(PyBytesObject *)
-return_self(PyBytesObject *self)
-{
- if (PyBytes_CheckExact(self)) {
- Py_INCREF(self);
- return self;
- }
- return (PyBytesObject *)PyBytes_FromStringAndSize(
- PyBytes_AS_STRING(self),
- PyBytes_GET_SIZE(self));
-}
-
-Py_LOCAL_INLINE(Py_ssize_t)
-countchar(const char *target, int target_len, char c, Py_ssize_t maxcount)
-{
- Py_ssize_t count=0;
- const char *start=target;
- const char *end=target+target_len;
-
- while ( (start=findchar(start, end-start, c)) != NULL ) {
- count++;
- if (count >= maxcount)
- break;
- start += 1;
- }
- return count;
-}
-
-Py_LOCAL(Py_ssize_t)
-findstring(const char *target, Py_ssize_t target_len,
- const char *pattern, Py_ssize_t pattern_len,
- Py_ssize_t start,
- Py_ssize_t end,
- int direction)
-{
- if (start < 0) {
- start += target_len;
- if (start < 0)
- start = 0;
- }
- if (end > target_len) {
- end = target_len;
- } else if (end < 0) {
- end += target_len;
- if (end < 0)
- end = 0;
- }
-
- /* zero-length substrings always match at the first attempt */
- if (pattern_len == 0)
- return (direction > 0) ? start : end;
-
- end -= pattern_len;
-
- if (direction < 0) {
- for (; end >= start; end--)
- if (Py_STRING_MATCH(target, end, pattern, pattern_len))
- return end;
- } else {
- for (; start <= end; start++)
- if (Py_STRING_MATCH(target, start, pattern, pattern_len))
- return start;
- }
- return -1;
-}
-
-Py_LOCAL_INLINE(Py_ssize_t)
-countstring(const char *target, Py_ssize_t target_len,
- const char *pattern, Py_ssize_t pattern_len,
- Py_ssize_t start,
- Py_ssize_t end,
- int direction, Py_ssize_t maxcount)
-{
- Py_ssize_t count=0;
-
- if (start < 0) {
- start += target_len;
- if (start < 0)
- start = 0;
- }
- if (end > target_len) {
- end = target_len;
- } else if (end < 0) {
- end += target_len;
- if (end < 0)
- end = 0;
- }
-
- /* zero-length substrings match everywhere */
- if (pattern_len == 0 || maxcount == 0) {
- if (target_len+1 < maxcount)
- return target_len+1;
- return maxcount;
- }
-
- end -= pattern_len;
- if (direction < 0) {
- for (; (end >= start); end--)
- if (Py_STRING_MATCH(target, end, pattern, pattern_len)) {
- count++;
- if (--maxcount <= 0) break;
- end -= pattern_len-1;
- }
- } else {
- for (; (start <= end); start++)
- if (Py_STRING_MATCH(target, start, pattern, pattern_len)) {
- count++;
- if (--maxcount <= 0)
- break;
- start += pattern_len-1;
- }
- }
- return count;
-}
-
-
-/* Algorithms for different cases of string replacement */
-
-/* len(self)>=1, from="", len(to)>=1, maxcount>=1 */
-Py_LOCAL(PyBytesObject *)
-replace_interleave(PyBytesObject *self,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount)
-{
- char *self_s, *result_s;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count, i, product;
- PyBytesObject *result;
-
- self_len = PyBytes_GET_SIZE(self);
-
- /* 1 at the end plus 1 after every character */
- count = self_len+1;
- if (maxcount < count)
- count = maxcount;
-
- /* Check for overflow */
- /* result_len = count * to_len + self_len; */
- product = count * to_len;
- if (product / to_len != count) {
- PyErr_SetString(PyExc_OverflowError,
- "replace string is too long");
- return NULL;
- }
- result_len = product + self_len;
- if (result_len < 0) {
- PyErr_SetString(PyExc_OverflowError,
- "replace string is too long");
- return NULL;
- }
-
- if (! (result = (PyBytesObject *)
- PyBytes_FromStringAndSize(NULL, result_len)) )
- return NULL;
-
- self_s = PyBytes_AS_STRING(self);
- result_s = PyBytes_AS_STRING(result);
-
- /* TODO: special case single character, which doesn't need memcpy */
-
- /* Lay the first one down (guaranteed this will occur) */
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- count -= 1;
-
- for (i=0; i<count; i++) {
- *result_s++ = *self_s++;
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- }
-
- /* Copy the rest of the original string */
- Py_MEMCPY(result_s, self_s, self_len-i);
-
- return result;
-}
-
-/* Special case for deleting a single character */
-/* len(self)>=1, len(from)==1, to="", maxcount>=1 */
-Py_LOCAL(PyBytesObject *)
-replace_delete_single_character(PyBytesObject *self,
- char from_c, Py_ssize_t maxcount)
-{
- char *self_s, *result_s;
- char *start, *next, *end;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count;
- PyBytesObject *result;
-
- self_len = PyBytes_GET_SIZE(self);
- self_s = PyBytes_AS_STRING(self);
-
- count = countchar(self_s, self_len, from_c, maxcount);
- if (count == 0) {
- return return_self(self);
- }
-
- result_len = self_len - count; /* from_len == 1 */
- assert(result_len>=0);
-
- if ( (result = (PyBytesObject *)
- PyBytes_FromStringAndSize(NULL, result_len)) == NULL)
- return NULL;
- result_s = PyBytes_AS_STRING(result);
-
- start = self_s;
- end = self_s + self_len;
- while (count-- > 0) {
- next = findchar(start, end-start, from_c);
- if (next == NULL)
- break;
- Py_MEMCPY(result_s, start, next-start);
- result_s += (next-start);
- start = next+1;
- }
- Py_MEMCPY(result_s, start, end-start);
-
- return result;
-}
-
-/* len(self)>=1, len(from)>=2, to="", maxcount>=1 */
-
-Py_LOCAL(PyBytesObject *)
-replace_delete_substring(PyBytesObject *self,
- const char *from_s, Py_ssize_t from_len,
- Py_ssize_t maxcount) {
- char *self_s, *result_s;
- char *start, *next, *end;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count, offset;
- PyBytesObject *result;
-
- self_len = PyBytes_GET_SIZE(self);
- self_s = PyBytes_AS_STRING(self);
-
- count = countstring(self_s, self_len,
- from_s, from_len,
- 0, self_len, 1,
- maxcount);
-
- if (count == 0) {
- /* no matches */
- return return_self(self);
- }
-
- result_len = self_len - (count * from_len);
- assert (result_len>=0);
-
- if ( (result = (PyBytesObject *)
- PyBytes_FromStringAndSize(NULL, result_len)) == NULL )
- return NULL;
-
- result_s = PyBytes_AS_STRING(result);
-
- start = self_s;
- end = self_s + self_len;
- while (count-- > 0) {
- offset = findstring(start, end-start,
- from_s, from_len,
- 0, end-start, FORWARD);
- if (offset == -1)
- break;
- next = start + offset;
-
- Py_MEMCPY(result_s, start, next-start);
-
- result_s += (next-start);
- start = next+from_len;
- }
- Py_MEMCPY(result_s, start, end-start);
- return result;
-}
-
-/* len(self)>=1, len(from)==len(to)==1, maxcount>=1 */
-Py_LOCAL(PyBytesObject *)
-replace_single_character_in_place(PyBytesObject *self,
- char from_c, char to_c,
- Py_ssize_t maxcount)
-{
- char *self_s, *result_s, *start, *end, *next;
- Py_ssize_t self_len;
- PyBytesObject *result;
-
- /* The result string will be the same size */
- self_s = PyBytes_AS_STRING(self);
- self_len = PyBytes_GET_SIZE(self);
-
- next = findchar(self_s, self_len, from_c);
-
- if (next == NULL) {
- /* No matches; return the original string */
- return return_self(self);
- }
-
- /* Need to make a new string */
- result = (PyBytesObject *) PyBytes_FromStringAndSize(NULL, self_len);
- if (result == NULL)
- return NULL;
- result_s = PyBytes_AS_STRING(result);
- Py_MEMCPY(result_s, self_s, self_len);
-
- /* change everything in-place, starting with this one */
- start = result_s + (next-self_s);
- *start = to_c;
- start++;
- end = result_s + self_len;
-
- while (--maxcount > 0) {
- next = findchar(start, end-start, from_c);
- if (next == NULL)
- break;
- *next = to_c;
- start = next+1;
- }
-
- return result;
-}
-
-/* len(self)>=1, len(from)==len(to)>=2, maxcount>=1 */
-Py_LOCAL(PyBytesObject *)
-replace_substring_in_place(PyBytesObject *self,
- const char *from_s, Py_ssize_t from_len,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount)
-{
- char *result_s, *start, *end;
- char *self_s;
- Py_ssize_t self_len, offset;
- PyBytesObject *result;
-
- /* The result string will be the same size */
-
- self_s = PyBytes_AS_STRING(self);
- self_len = PyBytes_GET_SIZE(self);
-
- offset = findstring(self_s, self_len,
- from_s, from_len,
- 0, self_len, FORWARD);
- if (offset == -1) {
- /* No matches; return the original string */
- return return_self(self);
- }
-
- /* Need to make a new string */
- result = (PyBytesObject *) PyBytes_FromStringAndSize(NULL, self_len);
- if (result == NULL)
- return NULL;
- result_s = PyBytes_AS_STRING(result);
- Py_MEMCPY(result_s, self_s, self_len);
-
- /* change everything in-place, starting with this one */
- start = result_s + offset;
- Py_MEMCPY(start, to_s, from_len);
- start += from_len;
- end = result_s + self_len;
-
- while ( --maxcount > 0) {
- offset = findstring(start, end-start,
- from_s, from_len,
- 0, end-start, FORWARD);
- if (offset==-1)
- break;
- Py_MEMCPY(start+offset, to_s, from_len);
- start += offset+from_len;
- }
-
- return result;
-}
-
-/* len(self)>=1, len(from)==1, len(to)>=2, maxcount>=1 */
-Py_LOCAL(PyBytesObject *)
-replace_single_character(PyBytesObject *self,
- char from_c,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount)
-{
- char *self_s, *result_s;
- char *start, *next, *end;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count, product;
- PyBytesObject *result;
-
- self_s = PyBytes_AS_STRING(self);
- self_len = PyBytes_GET_SIZE(self);
-
- count = countchar(self_s, self_len, from_c, maxcount);
- if (count == 0) {
- /* no matches, return unchanged */
- return return_self(self);
- }
-
- /* use the difference between current and new, hence the "-1" */
- /* result_len = self_len + count * (to_len-1) */
- product = count * (to_len-1);
- if (product / (to_len-1) != count) {
- PyErr_SetString(PyExc_OverflowError, "replace string is too long");
- return NULL;
- }
- result_len = self_len + product;
- if (result_len < 0) {
- PyErr_SetString(PyExc_OverflowError, "replace string is too long");
- return NULL;
- }
-
- if ( (result = (PyBytesObject *)
- PyBytes_FromStringAndSize(NULL, result_len)) == NULL)
- return NULL;
- result_s = PyBytes_AS_STRING(result);
-
- start = self_s;
- end = self_s + self_len;
- while (count-- > 0) {
- next = findchar(start, end-start, from_c);
- if (next == NULL)
- break;
-
- if (next == start) {
- /* replace with the 'to' */
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- start += 1;
- } else {
- /* copy the unchanged old then the 'to' */
- Py_MEMCPY(result_s, start, next-start);
- result_s += (next-start);
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- start = next+1;
- }
- }
- /* Copy the remainder of the remaining string */
- Py_MEMCPY(result_s, start, end-start);
-
- return result;
-}
-
-/* len(self)>=1, len(from)>=2, len(to)>=2, maxcount>=1 */
-Py_LOCAL(PyBytesObject *)
-replace_substring(PyBytesObject *self,
- const char *from_s, Py_ssize_t from_len,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount) {
- char *self_s, *result_s;
- char *start, *next, *end;
- Py_ssize_t self_len, result_len;
- Py_ssize_t count, offset, product;
- PyBytesObject *result;
-
- self_s = PyBytes_AS_STRING(self);
- self_len = PyBytes_GET_SIZE(self);
-
- count = countstring(self_s, self_len,
- from_s, from_len,
- 0, self_len, FORWARD, maxcount);
- if (count == 0) {
- /* no matches, return unchanged */
- return return_self(self);
- }
-
- /* Check for overflow */
- /* result_len = self_len + count * (to_len-from_len) */
- product = count * (to_len-from_len);
- if (product / (to_len-from_len) != count) {
- PyErr_SetString(PyExc_OverflowError, "replace string is too long");
- return NULL;
- }
- result_len = self_len + product;
- if (result_len < 0) {
- PyErr_SetString(PyExc_OverflowError, "replace string is too long");
- return NULL;
- }
-
- if ( (result = (PyBytesObject *)
- PyBytes_FromStringAndSize(NULL, result_len)) == NULL)
- return NULL;
- result_s = PyBytes_AS_STRING(result);
-
- start = self_s;
- end = self_s + self_len;
- while (count-- > 0) {
- offset = findstring(start, end-start,
- from_s, from_len,
- 0, end-start, FORWARD);
- if (offset == -1)
- break;
- next = start+offset;
- if (next == start) {
- /* replace with the 'to' */
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- start += from_len;
- } else {
- /* copy the unchanged old then the 'to' */
- Py_MEMCPY(result_s, start, next-start);
- result_s += (next-start);
- Py_MEMCPY(result_s, to_s, to_len);
- result_s += to_len;
- start = next+from_len;
- }
- }
- /* Copy the remainder of the remaining string */
- Py_MEMCPY(result_s, start, end-start);
-
- return result;
-}
-
-
-Py_LOCAL(PyBytesObject *)
-replace(PyBytesObject *self,
- const char *from_s, Py_ssize_t from_len,
- const char *to_s, Py_ssize_t to_len,
- Py_ssize_t maxcount)
-{
- if (maxcount < 0) {
- maxcount = PY_SSIZE_T_MAX;
- } else if (maxcount == 0 || PyBytes_GET_SIZE(self) == 0) {
- /* nothing to do; return the original string */
- return return_self(self);
- }
-
- if (maxcount == 0 ||
- (from_len == 0 && to_len == 0)) {
- /* nothing to do; return the original string */
- return return_self(self);
- }
-
- /* Handle zero-length special cases */
-
- if (from_len == 0) {
- /* insert the 'to' string everywhere. */
- /* >>> "Python".replace("", ".") */
- /* '.P.y.t.h.o.n.' */
- return replace_interleave(self, to_s, to_len, maxcount);
- }
-
- /* Except for "".replace("", "A") == "A" there is no way beyond this */
- /* point for an empty self string to generate a non-empty string */
- /* Special case so the remaining code always gets a non-empty string */
- if (PyBytes_GET_SIZE(self) == 0) {
- return return_self(self);
- }
-
- if (to_len == 0) {
- /* delete all occurances of 'from' string */
- if (from_len == 1) {
- return replace_delete_single_character(
- self, from_s[0], maxcount);
- } else {
- return replace_delete_substring(self, from_s, from_len, maxcount);
- }
- }
-
- /* Handle special case where both strings have the same length */
-
- if (from_len == to_len) {
- if (from_len == 1) {
- return replace_single_character_in_place(
- self,
- from_s[0],
- to_s[0],
- maxcount);
- } else {
- return replace_substring_in_place(
- self, from_s, from_len, to_s, to_len, maxcount);
- }
- }
-
- /* Otherwise use the more generic algorithms */
- if (from_len == 1) {
- return replace_single_character(self, from_s[0],
- to_s, to_len, maxcount);
- } else {
- /* len('from')>=2, len('to')>=1 */
- return replace_substring(self, from_s, from_len, to_s, to_len, maxcount);
- }
-}
-
-PyDoc_STRVAR(replace__doc__,
-"S.replace (old, new[, count]) -> string\n\
-\n\
-Return a copy of string S with all occurrences of substring\n\
-old replaced by new. If the optional argument count is\n\
-given, only the first count occurrences are replaced.");
-
-static PyObject *
-string_replace(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t count = -1;
- PyObject *from, *to;
- const char *from_s, *to_s;
- Py_ssize_t from_len, to_len;
-
- if (!PyArg_ParseTuple(args, "OO|n:replace", &from, &to, &count))
- return NULL;
-
- if (PyBytes_Check(from)) {
- from_s = PyBytes_AS_STRING(from);
- from_len = PyBytes_GET_SIZE(from);
- }
-#ifdef Py_USING_UNICODE
- if (PyUnicode_Check(from))
- return PyUnicode_Replace((PyObject *)self,
- from, to, count);
-#endif
- else if (PyObject_AsCharBuffer(from, &from_s, &from_len))
- return NULL;
-
- if (PyBytes_Check(to)) {
- to_s = PyBytes_AS_STRING(to);
- to_len = PyBytes_GET_SIZE(to);
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(to))
- return PyUnicode_Replace((PyObject *)self,
- from, to, count);
-#endif
- else if (PyObject_AsCharBuffer(to, &to_s, &to_len))
- return NULL;
-
- return (PyObject *)replace((PyBytesObject *) self,
- from_s, from_len,
- to_s, to_len, count);
-}
-
-/** End DALKE **/
-
-/* Matches the end (direction >= 0) or start (direction < 0) of self
- * against substr, using the start and end arguments. Returns
- * -1 on error, 0 if not found and 1 if found.
- */
-Py_LOCAL(int)
-_string_tailmatch(PyBytesObject *self, PyObject *substr, Py_ssize_t start,
- Py_ssize_t end, int direction)
-{
- Py_ssize_t len = PyBytes_GET_SIZE(self);
- Py_ssize_t slen;
- const char* sub;
- const char* str;
-
- if (PyBytes_Check(substr)) {
- sub = PyBytes_AS_STRING(substr);
- slen = PyBytes_GET_SIZE(substr);
- }
-#ifdef Py_USING_UNICODE
- else if (PyUnicode_Check(substr))
- return PyUnicode_Tailmatch((PyObject *)self,
- substr, start, end, direction);
-#endif
- else if (PyObject_AsCharBuffer(substr, &sub, &slen))
- return -1;
- str = PyBytes_AS_STRING(self);
-
- string_adjust_indices(&start, &end, len);
-
- if (direction < 0) {
- /* startswith */
- if (start+slen > len)
- return 0;
- } else {
- /* endswith */
- if (end-start < slen || start > len)
- return 0;
-
- if (end-slen > start)
- start = end - slen;
- }
- if (end-start >= slen)
- return ! memcmp(str+start, sub, slen);
- return 0;
-}
-
-
-PyDoc_STRVAR(startswith__doc__,
-"S.startswith(prefix[, start[, end]]) -> bool\n\
-\n\
-Return True if S starts with the specified prefix, False otherwise.\n\
-With optional start, test S beginning at that position.\n\
-With optional end, stop comparing S at that position.\n\
-prefix can also be a tuple of strings to try.");
-
-static PyObject *
-string_startswith(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t start = 0;
- Py_ssize_t end = PY_SSIZE_T_MAX;
- PyObject *subobj;
- int result;
-
- if (!PyArg_ParseTuple(args, "O|O&O&:startswith", &subobj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
- return NULL;
- if (PyTuple_Check(subobj)) {
- Py_ssize_t i;
- for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
- result = _string_tailmatch(self,
- PyTuple_GET_ITEM(subobj, i),
- start, end, -1);
- if (result == -1)
- return NULL;
- else if (result) {
- Py_RETURN_TRUE;
- }
- }
- Py_RETURN_FALSE;
- }
- result = _string_tailmatch(self, subobj, start, end, -1);
- if (result == -1)
- return NULL;
- else
- return PyBool_FromLong(result);
-}
-
-
-PyDoc_STRVAR(endswith__doc__,
-"S.endswith(suffix[, start[, end]]) -> bool\n\
-\n\
-Return True if S ends with the specified suffix, False otherwise.\n\
-With optional start, test S beginning at that position.\n\
-With optional end, stop comparing S at that position.\n\
-suffix can also be a tuple of strings to try.");
-
-static PyObject *
-string_endswith(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t start = 0;
- Py_ssize_t end = PY_SSIZE_T_MAX;
- PyObject *subobj;
- int result;
-
- if (!PyArg_ParseTuple(args, "O|O&O&:endswith", &subobj,
- _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
- return NULL;
- if (PyTuple_Check(subobj)) {
- Py_ssize_t i;
- for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) {
- result = _string_tailmatch(self,
- PyTuple_GET_ITEM(subobj, i),
- start, end, +1);
- if (result == -1)
- return NULL;
- else if (result) {
- Py_RETURN_TRUE;
- }
- }
- Py_RETURN_FALSE;
- }
- result = _string_tailmatch(self, subobj, start, end, +1);
- if (result == -1)
- return NULL;
- else
- return PyBool_FromLong(result);
-}
-
-
-PyDoc_STRVAR(encode__doc__,
-"S.encode([encoding[,errors]]) -> object\n\
-\n\
-Encodes S using the codec registered for encoding. encoding defaults\n\
-to the default encoding. errors may be given to set a different error\n\
-handling scheme. Default is 'strict' meaning that encoding errors raise\n\
-a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and\n\
-'xmlcharrefreplace' as well as any other name registered with\n\
-codecs.register_error that is able to handle UnicodeEncodeErrors.");
-
-static PyObject *
-string_encode(PyBytesObject *self, PyObject *args)
-{
- char *encoding = NULL;
- char *errors = NULL;
- PyObject *v;
-
- if (!PyArg_ParseTuple(args, "|ss:encode", &encoding, &errors))
- return NULL;
- v = PyBytes_AsEncodedObject((PyObject *)self, encoding, errors);
- if (v == NULL)
- goto onError;
- if (!PyBytes_Check(v) && !PyUnicode_Check(v)) {
- PyErr_Format(PyExc_TypeError,
- "encoder did not return a string/unicode object "
- "(type=%.400s)",
- Py_TYPE(v)->tp_name);
- Py_DECREF(v);
- return NULL;
- }
- return v;
-
- onError:
- return NULL;
-}
-
-
-PyDoc_STRVAR(decode__doc__,
-"S.decode([encoding[,errors]]) -> object\n\
-\n\
-Decodes S using the codec registered for encoding. encoding defaults\n\
-to the default encoding. errors may be given to set a different error\n\
-handling scheme. Default is 'strict' meaning that encoding errors raise\n\
-a UnicodeDecodeError. Other possible values are 'ignore' and 'replace'\n\
-as well as any other name registerd with codecs.register_error that is\n\
-able to handle UnicodeDecodeErrors.");
-
-static PyObject *
-string_decode(PyBytesObject *self, PyObject *args)
-{
- char *encoding = NULL;
- char *errors = NULL;
- PyObject *v;
-
- if (!PyArg_ParseTuple(args, "|ss:decode", &encoding, &errors))
- return NULL;
- v = PyBytes_AsDecodedObject((PyObject *)self, encoding, errors);
- if (v == NULL)
- goto onError;
- if (!PyBytes_Check(v) && !PyUnicode_Check(v)) {
- PyErr_Format(PyExc_TypeError,
- "decoder did not return a string/unicode object "
- "(type=%.400s)",
- Py_TYPE(v)->tp_name);
- Py_DECREF(v);
- return NULL;
- }
- return v;
-
- onError:
- return NULL;
-}
-
-
-PyDoc_STRVAR(expandtabs__doc__,
-"S.expandtabs([tabsize]) -> string\n\
-\n\
-Return a copy of S where all tab characters are expanded using spaces.\n\
-If tabsize is not given, a tab size of 8 characters is assumed.");
-
-static PyObject*
-string_expandtabs(PyBytesObject *self, PyObject *args)
-{
- const char *e, *p, *qe;
- char *q;
- Py_ssize_t i, j, incr;
- PyObject *u;
- int tabsize = 8;
-
- if (!PyArg_ParseTuple(args, "|i:expandtabs", &tabsize))
- return NULL;
-
- /* First pass: determine size of output string */
- i = 0; /* chars up to and including most recent \n or \r */
- j = 0; /* chars since most recent \n or \r (use in tab calculations) */
- e = PyBytes_AS_STRING(self) + PyBytes_GET_SIZE(self); /* end of input */
- for (p = PyBytes_AS_STRING(self); p < e; p++)
- if (*p == '\t') {
- if (tabsize > 0) {
- incr = tabsize - (j % tabsize);
- if (j > PY_SSIZE_T_MAX - incr)
- goto overflow1;
- j += incr;
- }
- }
- else {
- if (j > PY_SSIZE_T_MAX - 1)
- goto overflow1;
- j++;
- if (*p == '\n' || *p == '\r') {
- if (i > PY_SSIZE_T_MAX - j)
- goto overflow1;
- i += j;
- j = 0;
- }
- }
-
- if (i > PY_SSIZE_T_MAX - j)
- goto overflow1;
-
- /* Second pass: create output string and fill it */
- u = PyBytes_FromStringAndSize(NULL, i + j);
- if (!u)
- return NULL;
-
- j = 0; /* same as in first pass */
- q = PyBytes_AS_STRING(u); /* next output char */
- qe = PyBytes_AS_STRING(u) + PyBytes_GET_SIZE(u); /* end of output */
-
- for (p = PyBytes_AS_STRING(self); p < e; p++)
- if (*p == '\t') {
- if (tabsize > 0) {
- i = tabsize - (j % tabsize);
- j += i;
- while (i--) {
- if (q >= qe)
- goto overflow2;
- *q++ = ' ';
- }
- }
- }
- else {
- if (q >= qe)
- goto overflow2;
- *q++ = *p;
- j++;
- if (*p == '\n' || *p == '\r')
- j = 0;
- }
-
- return u;
-
- overflow2:
- Py_DECREF(u);
- overflow1:
- PyErr_SetString(PyExc_OverflowError, "new string is too long");
- return NULL;
-}
-
-Py_LOCAL_INLINE(PyObject *)
-pad(PyBytesObject *self, Py_ssize_t left, Py_ssize_t right, char fill)
-{
- PyObject *u;
-
- if (left < 0)
- left = 0;
- if (right < 0)
- right = 0;
-
- if (left == 0 && right == 0 && PyBytes_CheckExact(self)) {
- Py_INCREF(self);
- return (PyObject *)self;
- }
-
- u = PyBytes_FromStringAndSize(NULL,
- left + PyBytes_GET_SIZE(self) + right);
- if (u) {
- if (left)
- memset(PyBytes_AS_STRING(u), fill, left);
- Py_MEMCPY(PyBytes_AS_STRING(u) + left,
- PyBytes_AS_STRING(self),
- PyBytes_GET_SIZE(self));
- if (right)
- memset(PyBytes_AS_STRING(u) + left + PyBytes_GET_SIZE(self),
- fill, right);
- }
-
- return u;
-}
-
-PyDoc_STRVAR(ljust__doc__,
-"S.ljust(width[, fillchar]) -> string\n"
-"\n"
-"Return S left justified in a string of length width. Padding is\n"
-"done using the specified fill character (default is a space).");
-
-static PyObject *
-string_ljust(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t width;
- char fillchar = ' ';
-
- if (!PyArg_ParseTuple(args, "n|c:ljust", &width, &fillchar))
- return NULL;
-
- if (PyBytes_GET_SIZE(self) >= width && PyBytes_CheckExact(self)) {
- Py_INCREF(self);
- return (PyObject*) self;
- }
-
- return pad(self, 0, width - PyBytes_GET_SIZE(self), fillchar);
-}
-
-
-PyDoc_STRVAR(rjust__doc__,
-"S.rjust(width[, fillchar]) -> string\n"
-"\n"
-"Return S right justified in a string of length width. Padding is\n"
-"done using the specified fill character (default is a space)");
-
-static PyObject *
-string_rjust(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t width;
- char fillchar = ' ';
-
- if (!PyArg_ParseTuple(args, "n|c:rjust", &width, &fillchar))
- return NULL;
-
- if (PyBytes_GET_SIZE(self) >= width && PyBytes_CheckExact(self)) {
- Py_INCREF(self);
- return (PyObject*) self;
- }
-
- return pad(self, width - PyBytes_GET_SIZE(self), 0, fillchar);
-}
-
-
-PyDoc_STRVAR(center__doc__,
-"S.center(width[, fillchar]) -> string\n"
-"\n"
-"Return S centered in a string of length width. Padding is\n"
-"done using the specified fill character (default is a space)");
-
-static PyObject *
-string_center(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t marg, left;
- Py_ssize_t width;
- char fillchar = ' ';
-
- if (!PyArg_ParseTuple(args, "n|c:center", &width, &fillchar))
- return NULL;
-
- if (PyBytes_GET_SIZE(self) >= width && PyBytes_CheckExact(self)) {
- Py_INCREF(self);
- return (PyObject*) self;
- }
-
- marg = width - PyBytes_GET_SIZE(self);
- left = marg / 2 + (marg & width & 1);
-
- return pad(self, left, marg - left, fillchar);
-}
-
-PyDoc_STRVAR(zfill__doc__,
-"S.zfill(width) -> string\n"
-"\n"
-"Pad a numeric string S with zeros on the left, to fill a field\n"
-"of the specified width. The string S is never truncated.");
-
-static PyObject *
-string_zfill(PyBytesObject *self, PyObject *args)
-{
- Py_ssize_t fill;
- PyObject *s;
- char *p;
- Py_ssize_t width;
-
- if (!PyArg_ParseTuple(args, "n:zfill", &width))
- return NULL;
-
- if (PyBytes_GET_SIZE(self) >= width) {
- if (PyBytes_CheckExact(self)) {
- Py_INCREF(self);
- return (PyObject*) self;
- }
- else
- return PyBytes_FromStringAndSize(
- PyBytes_AS_STRING(self),
- PyBytes_GET_SIZE(self)
- );
- }
-
- fill = width - PyBytes_GET_SIZE(self);
-
- s = pad(self, fill, 0, '0');
-
- if (s == NULL)
- return NULL;
-
- p = PyBytes_AS_STRING(s);
- if (p[fill] == '+' || p[fill] == '-') {
- /* move sign to beginning of string */
- p[0] = p[fill];
- p[fill] = '0';
- }
-
- return (PyObject*) s;
-}
-
-PyDoc_STRVAR(isspace__doc__,
-"S.isspace() -> bool\n\
-\n\
-Return True if all characters in S are whitespace\n\
-and there is at least one character in S, False otherwise.");
-
-static PyObject*
-string_isspace(PyBytesObject *self)
-{
- register const unsigned char *p
- = (unsigned char *) PyBytes_AS_STRING(self);
- register const unsigned char *e;
-
- /* Shortcut for single character strings */
- if (PyBytes_GET_SIZE(self) == 1 &&
- isspace(*p))
- return PyBool_FromLong(1);
-
- /* Special case for empty strings */
- if (PyBytes_GET_SIZE(self) == 0)
- return PyBool_FromLong(0);
-
- e = p + PyBytes_GET_SIZE(self);
- for (; p < e; p++) {
- if (!isspace(*p))
- return PyBool_FromLong(0);
- }
- return PyBool_FromLong(1);
-}
-
-
-PyDoc_STRVAR(isalpha__doc__,
-"S.isalpha() -> bool\n\
-\n\
-Return True if all characters in S are alphabetic\n\
-and there is at least one character in S, False otherwise.");
-
-static PyObject*
-string_isalpha(PyBytesObject *self)
-{
- register const unsigned char *p
- = (unsigned char *) PyBytes_AS_STRING(self);
- register const unsigned char *e;
-
- /* Shortcut for single character strings */
- if (PyBytes_GET_SIZE(self) == 1 &&
- isalpha(*p))
- return PyBool_FromLong(1);
-
- /* Special case for empty strings */
- if (PyBytes_GET_SIZE(self) == 0)
- return PyBool_FromLong(0);
-
- e = p + PyBytes_GET_SIZE(self);
- for (; p < e; p++) {
- if (!isalpha(*p))
- return PyBool_FromLong(0);
- }
- return PyBool_FromLong(1);
-}
-
-
-PyDoc_STRVAR(isalnum__doc__,
-"S.isalnum() -> bool\n\
-\n\
-Return True if all characters in S are alphanumeric\n\
-and there is at least one character in S, False otherwise.");
-
-static PyObject*
-string_isalnum(PyBytesObject *self)
-{
- register const unsigned char *p
- = (unsigned char *) PyBytes_AS_STRING(self);
- register const unsigned char *e;
-
- /* Shortcut for single character strings */
- if (PyBytes_GET_SIZE(self) == 1 &&
- isalnum(*p))
- return PyBool_FromLong(1);
-
- /* Special case for empty strings */
- if (PyBytes_GET_SIZE(self) == 0)
- return PyBool_FromLong(0);
-
- e = p + PyBytes_GET_SIZE(self);
- for (; p < e; p++) {
- if (!isalnum(*p))
- return PyBool_FromLong(0);
- }
- return PyBool_FromLong(1);
-}
-
-
-PyDoc_STRVAR(isdigit__doc__,
-"S.isdigit() -> bool\n\
-\n\
-Return True if all characters in S are digits\n\
-and there is at least one character in S, False otherwise.");
-
-static PyObject*
-string_isdigit(PyBytesObject *self)
-{
- register const unsigned char *p
- = (unsigned char *) PyBytes_AS_STRING(self);
- register const unsigned char *e;
-
- /* Shortcut for single character strings */
- if (PyBytes_GET_SIZE(self) == 1 &&
- isdigit(*p))
- return PyBool_FromLong(1);
-
- /* Special case for empty strings */
- if (PyBytes_GET_SIZE(self) == 0)
- return PyBool_FromLong(0);
-
- e = p + PyBytes_GET_SIZE(self);
- for (; p < e; p++) {
- if (!isdigit(*p))
- return PyBool_FromLong(0);
- }
- return PyBool_FromLong(1);
-}
-
-
-PyDoc_STRVAR(islower__doc__,
-"S.islower() -> bool\n\
-\n\
-Return True if all cased characters in S are lowercase and there is\n\
-at least one cased character in S, False otherwise.");
-
-static PyObject*
-string_islower(PyBytesObject *self)
-{
- register const unsigned char *p
- = (unsigned char *) PyBytes_AS_STRING(self);
- register const unsigned char *e;
- int cased;
-
- /* Shortcut for single character strings */
- if (PyBytes_GET_SIZE(self) == 1)
- return PyBool_FromLong(islower(*p) != 0);
-
- /* Special case for empty strings */
- if (PyBytes_GET_SIZE(self) == 0)
- return PyBool_FromLong(0);
-
- e = p + PyBytes_GET_SIZE(self);
- cased = 0;
- for (; p < e; p++) {
- if (isupper(*p))
- return PyBool_FromLong(0);
- else if (!cased && islower(*p))
- cased = 1;
- }
- return PyBool_FromLong(cased);
-}
-
-
-PyDoc_STRVAR(isupper__doc__,
-"S.isupper() -> bool\n\
-\n\
-Return True if all cased characters in S are uppercase and there is\n\
-at least one cased character in S, False otherwise.");
-
-static PyObject*
-string_isupper(PyBytesObject *self)
-{
- register const unsigned char *p
- = (unsigned char *) PyBytes_AS_STRING(self);
- register const unsigned char *e;
- int cased;
-
- /* Shortcut for single character strings */
- if (PyBytes_GET_SIZE(self) == 1)
- return PyBool_FromLong(isupper(*p) != 0);
-
- /* Special case for empty strings */
- if (PyBytes_GET_SIZE(self) == 0)
- return PyBool_FromLong(0);
-
- e = p + PyBytes_GET_SIZE(self);
- cased = 0;
- for (; p < e; p++) {
- if (islower(*p))
- return PyBool_FromLong(0);
- else if (!cased && isupper(*p))
- cased = 1;
- }
- return PyBool_FromLong(cased);
-}
-
-
-PyDoc_STRVAR(istitle__doc__,
-"S.istitle() -> bool\n\
-\n\
-Return True if S is a titlecased string and there is at least one\n\
-character in S, i.e. uppercase characters may only follow uncased\n\
-characters and lowercase characters only cased ones. Return False\n\
-otherwise.");
-
-static PyObject*
-string_istitle(PyBytesObject *self, PyObject *uncased)
-{
- register const unsigned char *p
- = (unsigned char *) PyBytes_AS_STRING(self);
- register const unsigned char *e;
- int cased, previous_is_cased;
-
- /* Shortcut for single character strings */
- if (PyBytes_GET_SIZE(self) == 1)
- return PyBool_FromLong(isupper(*p) != 0);
-
- /* Special case for empty strings */
- if (PyBytes_GET_SIZE(self) == 0)
- return PyBool_FromLong(0);
-
- e = p + PyBytes_GET_SIZE(self);
- cased = 0;
- previous_is_cased = 0;
- for (; p < e; p++) {
- register const unsigned char ch = *p;
-
- if (isupper(ch)) {
- if (previous_is_cased)
- return PyBool_FromLong(0);
- previous_is_cased = 1;
- cased = 1;
- }
- else if (islower(ch)) {
- if (!previous_is_cased)
- return PyBool_FromLong(0);
- previous_is_cased = 1;
- cased = 1;
- }
- else
- previous_is_cased = 0;
- }
- return PyBool_FromLong(cased);
-}
-
-
-PyDoc_STRVAR(splitlines__doc__,
-"S.splitlines([keepends]) -> list of strings\n\
-\n\
-Return a list of the lines in S, breaking at line boundaries.\n\
-Line breaks are not included in the resulting list unless keepends\n\
-is given and true.");
-
-static PyObject*
-string_splitlines(PyBytesObject *self, PyObject *args)
-{
- register Py_ssize_t i;
- register Py_ssize_t j;
- Py_ssize_t len;
- int keepends = 0;
- PyObject *list;
- PyObject *str;
- char *data;
-
- if (!PyArg_ParseTuple(args, "|i:splitlines", &keepends))
- return NULL;
-
- data = PyBytes_AS_STRING(self);
- len = PyBytes_GET_SIZE(self);
-
- /* This does not use the preallocated list because splitlines is
- usually run with hundreds of newlines. The overhead of
- switching between PyList_SET_ITEM and append causes about a
- 2-3% slowdown for that common case. A smarter implementation
- could move the if check out, so the SET_ITEMs are done first
- and the appends only done when the prealloc buffer is full.
- That's too much work for little gain.*/
-
- list = PyList_New(0);
- if (!list)
- goto onError;
-
- for (i = j = 0; i < len; ) {
- Py_ssize_t eol;
-
- /* Find a line and append it */
- while (i < len && data[i] != '\n' && data[i] != '\r')
- i++;
-
- /* Skip the line break reading CRLF as one line break */
- eol = i;
- if (i < len) {
- if (data[i] == '\r' && i + 1 < len &&
- data[i+1] == '\n')
- i += 2;
- else
- i++;
- if (keepends)
- eol = i;
- }
- SPLIT_APPEND(data, j, eol);
- j = i;
- }
- if (j < len) {
- SPLIT_APPEND(data, j, len);
- }
-
- return list;
-
- onError:
- Py_XDECREF(list);
- return NULL;
-}
-
-#undef SPLIT_APPEND
-#undef SPLIT_ADD
-#undef MAX_PREALLOC
-#undef PREALLOC_SIZE
-
-static PyObject *
-string_getnewargs(PyBytesObject *v)
-{
- return Py_BuildValue("(s#)", v->ob_sval, Py_SIZE(v));
-}
-
-
-#include "stringlib/string_format.h"
-
-PyDoc_STRVAR(format__doc__,
-"S.format(*args, **kwargs) -> unicode\n\
-\n\
-");
-
-PyDoc_STRVAR(p_format__doc__,
-"S.__format__(format_spec) -> unicode\n\
-\n\
-");
-
-
-static PyMethodDef
-string_methods[] = {
- /* Counterparts of the obsolete stropmodule functions; except
- string.maketrans(). */
- {"join", (PyCFunction)string_join, METH_O, join__doc__},
- {"split", (PyCFunction)string_split, METH_VARARGS, split__doc__},
- {"rsplit", (PyCFunction)string_rsplit, METH_VARARGS, rsplit__doc__},
- {"lower", (PyCFunction)string_lower, METH_NOARGS, lower__doc__},
- {"upper", (PyCFunction)string_upper, METH_NOARGS, upper__doc__},
- {"islower", (PyCFunction)string_islower, METH_NOARGS, islower__doc__},
- {"isupper", (PyCFunction)string_isupper, METH_NOARGS, isupper__doc__},
- {"isspace", (PyCFunction)string_isspace, METH_NOARGS, isspace__doc__},
- {"isdigit", (PyCFunction)string_isdigit, METH_NOARGS, isdigit__doc__},
- {"istitle", (PyCFunction)string_istitle, METH_NOARGS, istitle__doc__},
- {"isalpha", (PyCFunction)string_isalpha, METH_NOARGS, isalpha__doc__},
- {"isalnum", (PyCFunction)string_isalnum, METH_NOARGS, isalnum__doc__},
- {"capitalize", (PyCFunction)string_capitalize, METH_NOARGS,
- capitalize__doc__},
- {"count", (PyCFunction)string_count, METH_VARARGS, count__doc__},
- {"endswith", (PyCFunction)string_endswith, METH_VARARGS,
- endswith__doc__},
- {"partition", (PyCFunction)string_partition, METH_O, partition__doc__},
- {"find", (PyCFunction)string_find, METH_VARARGS, find__doc__},
- {"index", (PyCFunction)string_index, METH_VARARGS, index__doc__},
- {"lstrip", (PyCFunction)string_lstrip, METH_VARARGS, lstrip__doc__},
- {"replace", (PyCFunction)string_replace, METH_VARARGS, replace__doc__},
- {"rfind", (PyCFunction)string_rfind, METH_VARARGS, rfind__doc__},
- {"rindex", (PyCFunction)string_rindex, METH_VARARGS, rindex__doc__},
- {"rstrip", (PyCFunction)string_rstrip, METH_VARARGS, rstrip__doc__},
- {"rpartition", (PyCFunction)string_rpartition, METH_O,
- rpartition__doc__},
- {"startswith", (PyCFunction)string_startswith, METH_VARARGS,
- startswith__doc__},
- {"strip", (PyCFunction)string_strip, METH_VARARGS, strip__doc__},
- {"swapcase", (PyCFunction)string_swapcase, METH_NOARGS,
- swapcase__doc__},
- {"translate", (PyCFunction)string_translate, METH_VARARGS,
- translate__doc__},
- {"title", (PyCFunction)string_title, METH_NOARGS, title__doc__},
- {"ljust", (PyCFunction)string_ljust, METH_VARARGS, ljust__doc__},
- {"rjust", (PyCFunction)string_rjust, METH_VARARGS, rjust__doc__},
- {"center", (PyCFunction)string_center, METH_VARARGS, center__doc__},
- {"zfill", (PyCFunction)string_zfill, METH_VARARGS, zfill__doc__},
- {"format", (PyCFunction) do_string_format, METH_VARARGS | METH_KEYWORDS, format__doc__},
- {"__format__", (PyCFunction) string__format__, METH_VARARGS, p_format__doc__},
- {"_formatter_field_name_split", (PyCFunction) formatter_field_name_split, METH_NOARGS},
- {"_formatter_parser", (PyCFunction) formatter_parser, METH_NOARGS},
- {"encode", (PyCFunction)string_encode, METH_VARARGS, encode__doc__},
- {"decode", (PyCFunction)string_decode, METH_VARARGS, decode__doc__},
- {"expandtabs", (PyCFunction)string_expandtabs, METH_VARARGS,
- expandtabs__doc__},
- {"splitlines", (PyCFunction)string_splitlines, METH_VARARGS,
- splitlines__doc__},
- {"__getnewargs__", (PyCFunction)string_getnewargs, METH_NOARGS},
- {NULL, NULL} /* sentinel */
-};
-
-static PyObject *
-str_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds);
-
-static PyObject *
-string_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
-{
- PyObject *x = NULL;
- static char *kwlist[] = {"object", 0};
-
- if (type != &PyBytes_Type)
- return str_subtype_new(type, args, kwds);
- if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O:str", kwlist, &x))
- return NULL;
- if (x == NULL)
- return PyBytes_FromString("");
- return PyObject_Str(x);
-}
-
-static PyObject *
-str_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
-{
- PyObject *tmp, *pnew;
- Py_ssize_t n;
-
- assert(PyType_IsSubtype(type, &PyBytes_Type));
- tmp = string_new(&PyBytes_Type, args, kwds);
- if (tmp == NULL)
- return NULL;
- assert(PyBytes_CheckExact(tmp));
- n = PyBytes_GET_SIZE(tmp);
- pnew = type->tp_alloc(type, n);
- if (pnew != NULL) {
- Py_MEMCPY(PyBytes_AS_STRING(pnew), PyBytes_AS_STRING(tmp), n+1);
- ((PyBytesObject *)pnew)->ob_shash =
- ((PyBytesObject *)tmp)->ob_shash;
- ((PyBytesObject *)pnew)->ob_sstate = SSTATE_NOT_INTERNED;
- }
- Py_DECREF(tmp);
- return pnew;
-}
-
-static PyObject *
-basestring_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
-{
- PyErr_SetString(PyExc_TypeError,
- "The basestring type cannot be instantiated");
- return NULL;
-}
-
-static PyObject *
-string_mod(PyObject *v, PyObject *w)
-{
- if (!PyBytes_Check(v)) {
- Py_INCREF(Py_NotImplemented);
- return Py_NotImplemented;
- }
- return PyBytes_Format(v, w);
-}
-
-PyDoc_STRVAR(basestring_doc,
-"Type basestring cannot be instantiated; it is the base for str and unicode.");
-
-static PyNumberMethods string_as_number = {
- 0, /*nb_add*/
- 0, /*nb_subtract*/
- 0, /*nb_multiply*/
- 0, /*nb_divide*/
- string_mod, /*nb_remainder*/
-};
-
-
-PyTypeObject PyBaseString_Type = {
- PyVarObject_HEAD_INIT(&PyType_Type, 0)
- "basestring",
- 0,
- 0,
- 0, /* tp_dealloc */
- 0, /* tp_print */
- 0, /* tp_getattr */
- 0, /* tp_setattr */
- 0, /* tp_compare */
- 0, /* tp_repr */
- 0, /* tp_as_number */
- 0, /* tp_as_sequence */
- 0, /* tp_as_mapping */
- 0, /* tp_hash */
- 0, /* tp_call */
- 0, /* tp_str */
- 0, /* tp_getattro */
- 0, /* tp_setattro */
- 0, /* tp_as_buffer */
- Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
- basestring_doc, /* tp_doc */
- 0, /* tp_traverse */
- 0, /* tp_clear */
- 0, /* tp_richcompare */
- 0, /* tp_weaklistoffset */
- 0, /* tp_iter */
- 0, /* tp_iternext */
- 0, /* tp_methods */
- 0, /* tp_members */
- 0, /* tp_getset */
- &PyBaseObject_Type, /* tp_base */
- 0, /* tp_dict */
- 0, /* tp_descr_get */
- 0, /* tp_descr_set */
- 0, /* tp_dictoffset */
- 0, /* tp_init */
- 0, /* tp_alloc */
- basestring_new, /* tp_new */
- 0, /* tp_free */
-};
-
-PyDoc_STRVAR(string_doc,
-"str(object) -> string\n\
-\n\
-Return a nice string representation of the object.\n\
-If the argument is a string, the return value is the same object.");
-
-PyTypeObject PyBytes_Type = {
- PyVarObject_HEAD_INIT(&PyType_Type, 0)
- "str",
- sizeof(PyBytesObject),
- sizeof(char),
- string_dealloc, /* tp_dealloc */
- (printfunc)string_print, /* tp_print */
- 0, /* tp_getattr */
- 0, /* tp_setattr */
- 0, /* tp_compare */
- string_repr, /* tp_repr */
- &string_as_number, /* tp_as_number */
- &string_as_sequence, /* tp_as_sequence */
- &string_as_mapping, /* tp_as_mapping */
- (hashfunc)string_hash, /* tp_hash */
- 0, /* tp_call */
- string_str, /* tp_str */
- PyObject_GenericGetAttr, /* tp_getattro */
- 0, /* tp_setattro */
- &string_as_buffer, /* tp_as_buffer */
- Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES |
- Py_TPFLAGS_BASETYPE | Py_TPFLAGS_STRING_SUBCLASS |
- Py_TPFLAGS_HAVE_NEWBUFFER, /* tp_flags */
- string_doc, /* tp_doc */
- 0, /* tp_traverse */
- 0, /* tp_clear */
- (richcmpfunc)string_richcompare, /* tp_richcompare */
- 0, /* tp_weaklistoffset */
- 0, /* tp_iter */
- 0, /* tp_iternext */
- string_methods, /* tp_methods */
- 0, /* tp_members */
- 0, /* tp_getset */
- &PyBaseString_Type, /* tp_base */
- 0, /* tp_dict */
- 0, /* tp_descr_get */
- 0, /* tp_descr_set */
- 0, /* tp_dictoffset */
- 0, /* tp_init */
- 0, /* tp_alloc */
- string_new, /* tp_new */
- PyObject_Del, /* tp_free */
-};
-
-void
-PyBytes_Concat(register PyObject **pv, register PyObject *w)
-{
- register PyObject *v;
- if (*pv == NULL)
- return;
- if (w == NULL || !PyBytes_Check(*pv)) {
- Py_DECREF(*pv);
- *pv = NULL;
- return;
- }
- v = string_concat((PyBytesObject *) *pv, w);
- Py_DECREF(*pv);
- *pv = v;
-}
-
-void
-PyBytes_ConcatAndDel(register PyObject **pv, register PyObject *w)
-{
- PyBytes_Concat(pv, w);
- Py_XDECREF(w);
-}
-
-
-/* The following function breaks the notion that strings are immutable:
- it changes the size of a string. We get away with this only if there
- is only one module referencing the object. You can also think of it
- as creating a new string object and destroying the old one, only
- more efficiently. In any case, don't use this if the string may
- already be known to some other part of the code...
- Note that if there's not enough memory to resize the string, the original
- string object at *pv is deallocated, *pv is set to NULL, an "out of
- memory" exception is set, and -1 is returned. Else (on success) 0 is
- returned, and the value in *pv may or may not be the same as on input.
- As always, an extra byte is allocated for a trailing \0 byte (newsize
- does *not* include that), and a trailing \0 byte is stored.
-*/
-
-int
-_PyBytes_Resize(PyObject **pv, Py_ssize_t newsize)
-{
- register PyObject *v;
- register PyBytesObject *sv;
- v = *pv;
- if (!PyBytes_Check(v) || Py_REFCNT(v) != 1 || newsize < 0 ||
- PyBytes_CHECK_INTERNED(v)) {
- *pv = 0;
- Py_DECREF(v);
- PyErr_BadInternalCall();
- return -1;
- }
- /* XXX UNREF/NEWREF interface should be more symmetrical */
- _Py_DEC_REFTOTAL;
- _Py_ForgetReference(v);
- *pv = (PyObject *)
- PyObject_REALLOC((char *)v, sizeof(PyBytesObject) + newsize);
- if (*pv == NULL) {
- PyObject_Del(v);
- PyErr_NoMemory();
- return -1;
- }
- _Py_NewReference(*pv);
- sv = (PyBytesObject *) *pv;
- Py_SIZE(sv) = newsize;
- sv->ob_sval[newsize] = '\0';
- sv->ob_shash = -1; /* invalidate cached hash value */
- return 0;
-}
-
-/* Helpers for formatstring */
-
-Py_LOCAL_INLINE(PyObject *)
-getnextarg(PyObject *args, Py_ssize_t arglen, Py_ssize_t *p_argidx)
-{
- Py_ssize_t argidx = *p_argidx;
- if (argidx < arglen) {
- (*p_argidx)++;
- if (arglen < 0)
- return args;
- else
- return PyTuple_GetItem(args, argidx);
- }
- PyErr_SetString(PyExc_TypeError,
- "not enough arguments for format string");
- return NULL;
-}
-
-/* Format codes
- * F_LJUST '-'
- * F_SIGN '+'
- * F_BLANK ' '
- * F_ALT '#'
- * F_ZERO '0'
- */
-#define F_LJUST (1<<0)
-#define F_SIGN (1<<1)
-#define F_BLANK (1<<2)
-#define F_ALT (1<<3)
-#define F_ZERO (1<<4)
-
-Py_LOCAL_INLINE(int)
-formatfloat(char *buf, size_t buflen, int flags,
- int prec, int type, PyObject *v)
-{
- /* fmt = '%#.' + `prec` + `type`
- worst case length = 3 + 10 (len of INT_MAX) + 1 = 14 (use 20)*/
- char fmt[20];
- double x;
- x = PyFloat_AsDouble(v);
- if (x == -1.0 && PyErr_Occurred()) {
- PyErr_Format(PyExc_TypeError, "float argument required, "
- "not %.200s", Py_TYPE(v)->tp_name);
- return -1;
- }
- if (prec < 0)
- prec = 6;
- if (type == 'f' && fabs(x)/1e25 >= 1e25)
- type = 'g';
- /* Worst case length calc to ensure no buffer overrun:
-
- 'g' formats:
- fmt = %#.<prec>g
- buf = '-' + [0-9]*prec + '.' + 'e+' + (longest exp
- for any double rep.)
- len = 1 + prec + 1 + 2 + 5 = 9 + prec
-
- 'f' formats:
- buf = '-' + [0-9]*x + '.' + [0-9]*prec (with x < 50)
- len = 1 + 50 + 1 + prec = 52 + prec
-
- If prec=0 the effective precision is 1 (the leading digit is
- always given), therefore increase the length by one.
-
- */
- if (((type == 'g' || type == 'G') &&
- buflen <= (size_t)10 + (size_t)prec) ||
- (type == 'f' && buflen <= (size_t)53 + (size_t)prec)) {
- PyErr_SetString(PyExc_OverflowError,
- "formatted float is too long (precision too large?)");
- return -1;
- }
- PyOS_snprintf(fmt, sizeof(fmt), "%%%s.%d%c",
- (flags&F_ALT) ? "#" : "",
- prec, type);
- PyOS_ascii_formatd(buf, buflen, fmt, x);
- return (int)strlen(buf);
-}
-
-/* _PyBytes_FormatLong emulates the format codes d, u, o, x and X, and
- * the F_ALT flag, for Python's long (unbounded) ints. It's not used for
- * Python's regular ints.
- * Return value: a new PyString*, or NULL if error.
- * . *pbuf is set to point into it,
- * *plen set to the # of chars following that.
- * Caller must decref it when done using pbuf.
- * The string starting at *pbuf is of the form
- * "-"? ("0x" | "0X")? digit+
- * "0x"/"0X" are present only for x and X conversions, with F_ALT
- * set in flags. The case of hex digits will be correct,
- * There will be at least prec digits, zero-filled on the left if
- * necessary to get that many.
- * val object to be converted
- * flags bitmask of format flags; only F_ALT is looked at
- * prec minimum number of digits; 0-fill on left if needed
- * type a character in [duoxX]; u acts the same as d
- *
- * CAUTION: o, x and X conversions on regular ints can never
- * produce a '-' sign, but can for Python's unbounded ints.
- */
-PyObject*
-_PyBytes_FormatLong(PyObject *val, int flags, int prec, int type,
- char **pbuf, int *plen)
-{
- PyObject *result = NULL;
- char *buf;
- Py_ssize_t i;
- int sign; /* 1 if '-', else 0 */
- int len; /* number of characters */
- Py_ssize_t llen;
- int numdigits; /* len == numnondigits + numdigits */
- int numnondigits = 0;
-
- switch (type) {
- case 'd':
- case 'u':
- result = Py_TYPE(val)->tp_str(val);
- break;
- case 'o':
- result = Py_TYPE(val)->tp_as_number->nb_oct(val);
- break;
- case 'x':
- case 'X':
- numnondigits = 2;
- result = Py_TYPE(val)->tp_as_number->nb_hex(val);
- break;
- default:
- assert(!"'type' not in [duoxX]");
- }
- if (!result)
- return NULL;
-
- buf = PyBytes_AsString(result);
- if (!buf) {
- Py_DECREF(result);
- return NULL;
- }
-
- /* To modify the string in-place, there can only be one reference. */
- if (Py_REFCNT(result) != 1) {
- PyErr_BadInternalCall();
- return NULL;
- }
- llen = PyBytes_Size(result);
- if (llen > INT_MAX) {
- PyErr_SetString(PyExc_ValueError, "string too large in _PyBytes_FormatLong");
- return NULL;
- }
- len = (int)llen;
- if (buf[len-1] == 'L') {
- --len;
- buf[len] = '\0';
- }
- sign = buf[0] == '-';
- numnondigits += sign;
- numdigits = len - numnondigits;
- assert(numdigits > 0);
-
- /* Get rid of base marker unless F_ALT */
- if ((flags & F_ALT) == 0) {
- /* Need to skip 0x, 0X or 0. */
- int skipped = 0;
- switch (type) {
- case 'o':
- assert(buf[sign] == '0');
- /* If 0 is only digit, leave it alone. */
- if (numdigits > 1) {
- skipped = 1;
- --numdigits;
- }
- break;
- case 'x':
- case 'X':
- assert(buf[sign] == '0');
- assert(buf[sign + 1] == 'x');
- skipped = 2;
- numnondigits -= 2;
- break;
- }
- if (skipped) {
- buf += skipped;
- len -= skipped;
- if (sign)
- buf[0] = '-';
- }
- assert(len == numnondigits + numdigits);
- assert(numdigits > 0);
- }
-
- /* Fill with leading zeroes to meet minimum width. */
- if (prec > numdigits) {
- PyObject *r1 = PyBytes_FromStringAndSize(NULL,
- numnondigits + prec);
- char *b1;
- if (!r1) {
- Py_DECREF(result);
- return NULL;
- }
- b1 = PyBytes_AS_STRING(r1);
- for (i = 0; i < numnondigits; ++i)
- *b1++ = *buf++;
- for (i = 0; i < prec - numdigits; i++)
- *b1++ = '0';
- for (i = 0; i < numdigits; i++)
- *b1++ = *buf++;
- *b1 = '\0';
- Py_DECREF(result);
- result = r1;
- buf = PyBytes_AS_STRING(result);
- len = numnondigits + prec;
- }
-
- /* Fix up case for hex conversions. */
- if (type == 'X') {
- /* Need to convert all lower case letters to upper case.
- and need to convert 0x to 0X (and -0x to -0X). */
- for (i = 0; i < len; i++)
- if (buf[i] >= 'a' && buf[i] <= 'x')
- buf[i] -= 'a'-'A';
- }
- *pbuf = buf;
- *plen = len;
- return result;
-}
-
-Py_LOCAL_INLINE(int)
-formatint(char *buf, size_t buflen, int flags,
- int prec, int type, PyObject *v)
-{
- /* fmt = '%#.' + `prec` + 'l' + `type`
- worst case length = 3 + 19 (worst len of INT_MAX on 64-bit machine)
- + 1 + 1 = 24 */
- char fmt[64]; /* plenty big enough! */
- char *sign;
- long x;
-
- x = PyInt_AsLong(v);
- if (x == -1 && PyErr_Occurred()) {
- PyErr_Format(PyExc_TypeError, "int argument required, not %.200s",
- Py_TYPE(v)->tp_name);
- return -1;
- }
- if (x < 0 && type == 'u') {
- type = 'd';
- }
- if (x < 0 && (type == 'x' || type == 'X' || type == 'o'))
- sign = "-";
- else
- sign = "";
- if (prec < 0)
- prec = 1;
-
- if ((flags & F_ALT) &&
- (type == 'x' || type == 'X')) {
- /* When converting under %#x or %#X, there are a number
- * of issues that cause pain:
- * - when 0 is being converted, the C standard leaves off
- * the '0x' or '0X', which is inconsistent with other
- * %#x/%#X conversions and inconsistent with Python's
- * hex() function
- * - there are platforms that violate the standard and
- * convert 0 with the '0x' or '0X'
- * (Metrowerks, Compaq Tru64)
- * - there are platforms that give '0x' when converting
- * under %#X, but convert 0 in accordance with the
- * standard (OS/2 EMX)
- *
- * We can achieve the desired consistency by inserting our
- * own '0x' or '0X' prefix, and substituting %x/%X in place
- * of %#x/%#X.
- *
- * Note that this is the same approach as used in
- * formatint() in unicodeobject.c
- */
- PyOS_snprintf(fmt, sizeof(fmt), "%s0%c%%.%dl%c",
- sign, type, prec, type);
- }
- else {
- PyOS_snprintf(fmt, sizeof(fmt), "%s%%%s.%dl%c",
- sign, (flags&F_ALT) ? "#" : "",
- prec, type);
- }
-
- /* buf = '+'/'-'/'' + '0'/'0x'/'' + '[0-9]'*max(prec, len(x in octal))
- * worst case buf = '-0x' + [0-9]*prec, where prec >= 11
- */
- if (buflen <= 14 || buflen <= (size_t)3 + (size_t)prec) {
- PyErr_SetString(PyExc_OverflowError,
- "formatted integer is too long (precision too large?)");
- return -1;
- }
- if (sign[0])
- PyOS_snprintf(buf, buflen, fmt, -x);
- else
- PyOS_snprintf(buf, buflen, fmt, x);
- return (int)strlen(buf);
-}
-
-Py_LOCAL_INLINE(int)
-formatchar(char *buf, size_t buflen, PyObject *v)
-{
- /* presume that the buffer is at least 2 characters long */
- if (PyBytes_Check(v)) {
- if (!PyArg_Parse(v, "c;%c requires int or char", &buf[0]))
- return -1;
- }
- else {
- if (!PyArg_Parse(v, "b;%c requires int or char", &buf[0]))
- return -1;
- }
- buf[1] = '\0';
- return 1;
-}
-
-/* fmt%(v1,v2,...) is roughly equivalent to sprintf(fmt, v1, v2, ...)
-
- FORMATBUFLEN is the length of the buffer in which the floats, ints, &
- chars are formatted. XXX This is a magic number. Each formatting
- routine does bounds checking to ensure no overflow, but a better
- solution may be to malloc a buffer of appropriate size for each
- format. For now, the current solution is sufficient.
-*/
-#define FORMATBUFLEN (size_t)120
-
-PyObject *
-PyBytes_Format(PyObject *format, PyObject *args)
-{
- char *fmt, *res;
- Py_ssize_t arglen, argidx;
- Py_ssize_t reslen, rescnt, fmtcnt;
- int args_owned = 0;
- PyObject *result, *orig_args;
-#ifdef Py_USING_UNICODE
- PyObject *v, *w;
-#endif
- PyObject *dict = NULL;
- if (format == NULL || !PyBytes_Check(format) || args == NULL) {
- PyErr_BadInternalCall();
- return NULL;
- }
- orig_args = args;
- fmt = PyBytes_AS_STRING(format);
- fmtcnt = PyBytes_GET_SIZE(format);
- reslen = rescnt = fmtcnt + 100;
- result = PyBytes_FromStringAndSize((char *)NULL, reslen);
- if (result == NULL)
- return NULL;
- res = PyBytes_AsString(result);
- if (PyTuple_Check(args)) {
- arglen = PyTuple_GET_SIZE(args);
- argidx = 0;
- }
- else {
- arglen = -1;
- argidx = -2;
- }
- if (Py_TYPE(args)->tp_as_mapping && !PyTuple_Check(args) &&
- !PyObject_TypeCheck(args, &PyBaseString_Type))
- dict = args;
- while (--fmtcnt >= 0) {
- if (*fmt != '%') {
- if (--rescnt < 0) {
- rescnt = fmtcnt + 100;
- reslen += rescnt;
- if (_PyBytes_Resize(&result, reslen) < 0)
- return NULL;
- res = PyBytes_AS_STRING(result)
- + reslen - rescnt;
- --rescnt;
- }
- *res++ = *fmt++;
- }
- else {
- /* Got a format specifier */
- int flags = 0;
- Py_ssize_t width = -1;
- int prec = -1;
- int c = '\0';
- int fill;
- int isnumok;
- PyObject *v = NULL;
- PyObject *temp = NULL;
- char *pbuf;
- int sign;
- Py_ssize_t len;
- char formatbuf[FORMATBUFLEN];
- /* For format{float,int,char}() */
-#ifdef Py_USING_UNICODE
- char *fmt_start = fmt;
- Py_ssize_t argidx_start = argidx;
-#endif
-
- fmt++;
- if (*fmt == '(') {
- char *keystart;
- Py_ssize_t keylen;
- PyObject *key;
- int pcount = 1;
-
- if (dict == NULL) {
- PyErr_SetString(PyExc_TypeError,
- "format requires a mapping");
- goto error;
- }
- ++fmt;
- --fmtcnt;
- keystart = fmt;
- /* Skip over balanced parentheses */
- while (pcount > 0 && --fmtcnt >= 0) {
- if (*fmt == ')')
- --pcount;
- else if (*fmt == '(')
- ++pcount;
- fmt++;
- }
- keylen = fmt - keystart - 1;
- if (fmtcnt < 0 || pcount > 0) {
- PyErr_SetString(PyExc_ValueError,
- "incomplete format key");
- goto error;
- }
- key = PyBytes_FromStringAndSize(keystart,
- keylen);
- if (key == NULL)
- goto error;
- if (args_owned) {
- Py_DECREF(args);
- args_owned = 0;
- }
- args = PyObject_GetItem(dict, key);
- Py_DECREF(key);
- if (args == NULL) {
- goto error;
- }
- args_owned = 1;
- arglen = -1;
- argidx = -2;
- }
- while (--fmtcnt >= 0) {
- switch (c = *fmt++) {
- case '-': flags |= F_LJUST; continue;
- case '+': flags |= F_SIGN; continue;
- case ' ': flags |= F_BLANK; continue;
- case '#': flags |= F_ALT; continue;
- case '0': flags |= F_ZERO; continue;
- }
- break;
- }
- if (c == '*') {
- v = getnextarg(args, arglen, &argidx);
- if (v == NULL)
- goto error;
- if (!PyInt_Check(v)) {
- PyErr_SetString(PyExc_TypeError,
- "* wants int");
- goto error;
- }
- width = PyInt_AsLong(v);
- if (width < 0) {
- flags |= F_LJUST;
- width = -width;
- }
- if (--fmtcnt >= 0)
- c = *fmt++;
- }
- else if (c >= 0 && isdigit(c)) {
- width = c - '0';
- while (--fmtcnt >= 0) {
- c = Py_CHARMASK(*fmt++);
- if (!isdigit(c))
- break;
- if ((width*10) / 10 != width) {
- PyErr_SetString(
- PyExc_ValueError,
- "width too big");
- goto error;
- }
- width = width*10 + (c - '0');
- }
- }
- if (c == '.') {
- prec = 0;
- if (--fmtcnt >= 0)
- c = *fmt++;
- if (c == '*') {
- v = getnextarg(args, arglen, &argidx);
- if (v == NULL)
- goto error;
- if (!PyInt_Check(v)) {
- PyErr_SetString(
- PyExc_TypeError,
- "* wants int");
- goto error;
- }
- prec = PyInt_AsLong(v);
- if (prec < 0)
- prec = 0;
- if (--fmtcnt >= 0)
- c = *fmt++;
- }
- else if (c >= 0 && isdigit(c)) {
- prec = c - '0';
- while (--fmtcnt >= 0) {
- c = Py_CHARMASK(*fmt++);
- if (!isdigit(c))
- break;
- if ((prec*10) / 10 != prec) {
- PyErr_SetString(
- PyExc_ValueError,
- "prec too big");
- goto error;
- }
- prec = prec*10 + (c - '0');
- }
- }
- } /* prec */
- if (fmtcnt >= 0) {
- if (c == 'h' || c == 'l' || c == 'L') {
- if (--fmtcnt >= 0)
- c = *fmt++;
- }
- }
- if (fmtcnt < 0) {
- PyErr_SetString(PyExc_ValueError,
- "incomplete format");
- goto error;
- }
- if (c != '%') {
- v = getnextarg(args, arglen, &argidx);
- if (v == NULL)
- goto error;
- }
- sign = 0;
- fill = ' ';
- switch (c) {
- case '%':
- pbuf = "%";
- len = 1;
- break;
- case 's':
-#ifdef Py_USING_UNICODE
- if (PyUnicode_Check(v)) {
- fmt = fmt_start;
- argidx = argidx_start;
- goto unicode;
- }
-#endif
- temp = _PyObject_Str(v);
-#ifdef Py_USING_UNICODE
- if (temp != NULL && PyUnicode_Check(temp)) {
- Py_DECREF(temp);
- fmt = fmt_start;
- argidx = argidx_start;
- goto unicode;
- }
-#endif
- /* Fall through */
- case 'r':
- if (c == 'r')
- temp = PyObject_Repr(v);
- if (temp == NULL)
- goto error;
- if (!PyBytes_Check(temp)) {
- PyErr_SetString(PyExc_TypeError,
- "%s argument has non-string str()");
- Py_DECREF(temp);
- goto error;
- }
- pbuf = PyBytes_AS_STRING(temp);
- len = PyBytes_GET_SIZE(temp);
- if (prec >= 0 && len > prec)
- len = prec;
- break;
- case 'i':
- case 'd':
- case 'u':
- case 'o':
- case 'x':
- case 'X':
- if (c == 'i')
- c = 'd';
- isnumok = 0;
- if (PyNumber_Check(v)) {
- PyObject *iobj=NULL;
-
- if (PyInt_Check(v) || (PyLong_Check(v))) {
- iobj = v;
- Py_INCREF(iobj);
- }
- else {
- iobj = PyNumber_Int(v);
- if (iobj==NULL) iobj = PyNumber_Long(v);
- }
- if (iobj!=NULL) {
- if (PyInt_Check(iobj)) {
- isnumok = 1;
- pbuf = formatbuf;
- len = formatint(pbuf,
- sizeof(formatbuf),
- flags, prec, c, iobj);
- Py_DECREF(iobj);
- if (len < 0)
- goto error;
- sign = 1;
- }
- else if (PyLong_Check(iobj)) {
- int ilen;
-
- isnumok = 1;
- temp = _PyBytes_FormatLong(iobj, flags,
- prec, c, &pbuf, &ilen);
- Py_DECREF(iobj);
- len = ilen;
- if (!temp)
- goto error;
- sign = 1;
- }
- else {
- Py_DECREF(iobj);
- }
- }
- }
- if (!isnumok) {
- PyErr_Format(PyExc_TypeError,
- "%%%c format: a number is required, "
- "not %.200s", c, Py_TYPE(v)->tp_name);
- goto error;
- }
- if (flags & F_ZERO)
- fill = '0';
- break;
- case 'e':
- case 'E':
- case 'f':
- case 'F':
- case 'g':
- case 'G':
- if (c == 'F')
- c = 'f';
- pbuf = formatbuf;
- len = formatfloat(pbuf, sizeof(formatbuf),
- flags, prec, c, v);
- if (len < 0)
- goto error;
- sign = 1;
- if (flags & F_ZERO)
- fill = '0';
- break;
- case 'c':
-#ifdef Py_USING_UNICODE
- if (PyUnicode_Check(v)) {
- fmt = fmt_start;
- argidx = argidx_start;
- goto unicode;
- }
-#endif
- pbuf = formatbuf;
- len = formatchar(pbuf, sizeof(formatbuf), v);
- if (len < 0)
- goto error;
- break;
- default:
- PyErr_Format(PyExc_ValueError,
- "unsupported format character '%c' (0x%x) "
- "at index %zd",
- c, c,
- (Py_ssize_t)(fmt - 1 -
- PyBytes_AsString(format)));
- goto error;
- }
- if (sign) {
- if (*pbuf == '-' || *pbuf == '+') {
- sign = *pbuf++;
- len--;
- }
- else if (flags & F_SIGN)
- sign = '+';
- else if (flags & F_BLANK)
- sign = ' ';
- else
- sign = 0;
- }
- if (width < len)
- width = len;
- if (rescnt - (sign != 0) < width) {
- reslen -= rescnt;
- rescnt = width + fmtcnt + 100;
- reslen += rescnt;
- if (reslen < 0) {
- Py_DECREF(result);
- Py_XDECREF(temp);
- return PyErr_NoMemory();
- }
- if (_PyBytes_Resize(&result, reslen) < 0) {
- Py_XDECREF(temp);
- return NULL;
- }
- res = PyBytes_AS_STRING(result)
- + reslen - rescnt;
- }
- if (sign) {
- if (fill != ' ')
- *res++ = sign;
- rescnt--;
- if (width > len)
- width--;
- }
- if ((flags & F_ALT) && (c == 'x' || c == 'X')) {
- assert(pbuf[0] == '0');
- assert(pbuf[1] == c);
- if (fill != ' ') {
- *res++ = *pbuf++;
- *res++ = *pbuf++;
- }
- rescnt -= 2;
- width -= 2;
- if (width < 0)
- width = 0;
- len -= 2;
- }
- if (width > len && !(flags & F_LJUST)) {
- do {
- --rescnt;
- *res++ = fill;
- } while (--width > len);
- }
- if (fill == ' ') {
- if (sign)
- *res++ = sign;
- if ((flags & F_ALT) &&
- (c == 'x' || c == 'X')) {
- assert(pbuf[0] == '0');
- assert(pbuf[1] == c);
- *res++ = *pbuf++;
- *res++ = *pbuf++;
- }
- }
- Py_MEMCPY(res, pbuf, len);
- res += len;
- rescnt -= len;
- while (--width >= len) {
- --rescnt;
- *res++ = ' ';
- }
- if (dict && (argidx < arglen) && c != '%') {
- PyErr_SetString(PyExc_TypeError,
- "not all arguments converted during string formatting");
- Py_XDECREF(temp);
- goto error;
- }
- Py_XDECREF(temp);
- } /* '%' */
- } /* until end */
- if (argidx < arglen && !dict) {
- PyErr_SetString(PyExc_TypeError,
- "not all arguments converted during string formatting");
- goto error;
- }
- if (args_owned) {
- Py_DECREF(args);
- }
- _PyBytes_Resize(&result, reslen - rescnt);
- return result;
-
-#ifdef Py_USING_UNICODE
- unicode:
- if (args_owned) {
- Py_DECREF(args);
- args_owned = 0;
- }
- /* Fiddle args right (remove the first argidx arguments) */
- if (PyTuple_Check(orig_args) && argidx > 0) {
- PyObject *v;
- Py_ssize_t n = PyTuple_GET_SIZE(orig_args) - argidx;
- v = PyTuple_New(n);
- if (v == NULL)
- goto error;
- while (--n >= 0) {
- PyObject *w = PyTuple_GET_ITEM(orig_args, n + argidx);
- Py_INCREF(w);
- PyTuple_SET_ITEM(v, n, w);
- }
- args = v;
- } else {
- Py_INCREF(orig_args);
- args = orig_args;
- }
- args_owned = 1;
- /* Take what we have of the result and let the Unicode formatting
- function format the rest of the input. */
- rescnt = res - PyBytes_AS_STRING(result);
- if (_PyBytes_Resize(&result, rescnt))
- goto error;
- fmtcnt = PyBytes_GET_SIZE(format) - \
- (fmt - PyBytes_AS_STRING(format));
- format = PyUnicode_Decode(fmt, fmtcnt, NULL, NULL);
- if (format == NULL)
- goto error;
- v = PyUnicode_Format(format, args);
- Py_DECREF(format);
- if (v == NULL)
- goto error;
- /* Paste what we have (result) to what the Unicode formatting
- function returned (v) and return the result (or error) */
- w = PyUnicode_Concat(result, v);
- Py_DECREF(result);
- Py_DECREF(v);
- Py_DECREF(args);
- return w;
-#endif /* Py_USING_UNICODE */
-
- error:
- Py_DECREF(result);
- if (args_owned) {
- Py_DECREF(args);
- }
- return NULL;
-}
-
-void
-PyBytes_InternInPlace(PyObject **p)
-{
- register PyBytesObject *s = (PyBytesObject *)(*p);
- PyObject *t;
- if (s == NULL || !PyBytes_Check(s))
- Py_FatalError("PyBytes_InternInPlace: strings only please!");
- /* If it's a string subclass, we don't really know what putting
- it in the interned dict might do. */
- if (!PyBytes_CheckExact(s))
- return;
- if (PyBytes_CHECK_INTERNED(s))
- return;
- if (interned == NULL) {
- interned = PyDict_New();
- if (interned == NULL) {
- PyErr_Clear(); /* Don't leave an exception */
- return;
- }
- }
- t = PyDict_GetItem(interned, (PyObject *)s);
- if (t) {
- Py_INCREF(t);
- Py_DECREF(*p);
- *p = t;
- return;
- }
-
- if (PyDict_SetItem(interned, (PyObject *)s, (PyObject *)s) < 0) {
- PyErr_Clear();
- return;
- }
- /* The two references in interned are not counted by refcnt.
- The string deallocator will take care of this */
- Py_REFCNT(s) -= 2;
- PyBytes_CHECK_INTERNED(s) = SSTATE_INTERNED_MORTAL;
-}
-
-void
-PyBytes_InternImmortal(PyObject **p)
-{
- PyBytes_InternInPlace(p);
- if (PyBytes_CHECK_INTERNED(*p) != SSTATE_INTERNED_IMMORTAL) {
- PyBytes_CHECK_INTERNED(*p) = SSTATE_INTERNED_IMMORTAL;
- Py_INCREF(*p);
- }
-}
-
-
-PyObject *
-PyBytes_InternFromString(const char *cp)
-{
- PyObject *s = PyBytes_FromString(cp);
- if (s == NULL)
- return NULL;
- PyBytes_InternInPlace(&s);
- return s;
-}
-
-void
-PyBytes_Fini(void)
-{
- int i;
- for (i = 0; i < UCHAR_MAX + 1; i++) {
- Py_XDECREF(characters[i]);
- characters[i] = NULL;
- }
- Py_XDECREF(nullstring);
- nullstring = NULL;
-}
-
-void _Py_ReleaseInternedStrings(void)
-{
- PyObject *keys;
- PyBytesObject *s;
- Py_ssize_t i, n;
- Py_ssize_t immortal_size = 0, mortal_size = 0;
-
- if (interned == NULL || !PyDict_Check(interned))
- return;
- keys = PyDict_Keys(interned);
- if (keys == NULL || !PyList_Check(keys)) {
- PyErr_Clear();
- return;
- }
-
- /* Since _Py_ReleaseInternedStrings() is intended to help a leak
- detector, interned strings are not forcibly deallocated; rather, we
- give them their stolen references back, and then clear and DECREF
- the interned dict. */
-
- n = PyList_GET_SIZE(keys);
- fprintf(stderr, "releasing %" PY_FORMAT_SIZE_T "d interned strings\n",
- n);
- for (i = 0; i < n; i++) {
- s = (PyBytesObject *) PyList_GET_ITEM(keys, i);
- switch (s->ob_sstate) {
- case SSTATE_NOT_INTERNED:
- /* XXX Shouldn't happen */
- break;
- case SSTATE_INTERNED_IMMORTAL:
- Py_REFCNT(s) += 1;
- immortal_size += Py_SIZE(s);
- break;
- case SSTATE_INTERNED_MORTAL:
- Py_REFCNT(s) += 2;
- mortal_size += Py_SIZE(s);
- break;
- default:
- Py_FatalError("Inconsistent interned string state.");
- }
- s->ob_sstate = SSTATE_NOT_INTERNED;
- }
- fprintf(stderr, "total size of all interned strings: "
- "%" PY_FORMAT_SIZE_T "d/%" PY_FORMAT_SIZE_T "d "
- "mortal/immortal\n", mortal_size, immortal_size);
- Py_DECREF(keys);
- PyDict_Clear(interned);
- Py_DECREF(interned);
- interned = NULL;
-}
generated by cgit v0.12 at 2024-11-28 16:49:06 (GMT)