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added count, extend, index, pop and remove to arraymodule
This commit is contained in:
Peter Schneider-Kamp
parent
4640e13259
commit
5a65c2d436
4 changed files with 233 additions and 74 deletions
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@ -673,6 +673,163 @@ ins(arrayobject *self, int where, PyObject *v)
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return Py_None;
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}
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static PyObject *
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array_count(arrayobject *self, PyObject *args)
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{
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int count = 0;
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int i;
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PyObject *v;
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if (!PyArg_ParseTuple(args, "O:count", &v))
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return NULL;
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for (i = 0; i < self->ob_size; i++) {
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PyObject *selfi = getarrayitem((PyObject *)self, i);
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if (PyObject_Compare(selfi, v) == 0)
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count++;
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Py_DECREF(selfi);
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if (PyErr_Occurred())
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return NULL;
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}
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return PyInt_FromLong((long)count);
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}
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static char count_doc [] =
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"count (x)\n\
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\n\
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Return number of occurences of x in the array.";
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static PyObject *
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array_index(arrayobject *self, PyObject *args)
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{
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int i;
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PyObject *v;
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if (!PyArg_ParseTuple(args, "O:index", &v))
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return NULL;
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for (i = 0; i < self->ob_size; i++) {
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PyObject *selfi = getarrayitem((PyObject *)self, i);
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if (PyObject_Compare(selfi, v) == 0) {
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Py_DECREF(selfi);
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return PyInt_FromLong((long)i);
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}
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Py_DECREF(selfi);
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if (PyErr_Occurred())
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return NULL;
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}
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PyErr_SetString(PyExc_ValueError, "array.index(x): x not in list");
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return NULL;
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}
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static char index_doc [] =
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"index (x)\n\
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\n\
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Return index of first occurence of x in the array.";
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static PyObject *
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array_remove(arrayobject *self, PyObject *args)
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{
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int i;
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PyObject *v;
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if (!PyArg_ParseTuple(args, "O:remove", &v))
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return NULL;
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for (i = 0; i < self->ob_size; i++) {
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PyObject *selfi = getarrayitem((PyObject *)self,i);
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if (PyObject_Compare(selfi, v) == 0) {
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Py_DECREF(selfi);
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if (array_ass_slice(self, i, i+1,
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(PyObject *)NULL) != 0)
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return NULL;
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Py_INCREF(Py_None);
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return Py_None;
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}
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Py_DECREF(selfi);
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if (PyErr_Occurred())
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return NULL;
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}
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PyErr_SetString(PyExc_ValueError, "array.remove(x): x not in list");
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return NULL;
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}
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static char remove_doc [] =
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"remove (x)\n\
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\n\
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Remove the first occurence of x in the array.";
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static PyObject *
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array_pop(arrayobject *self, PyObject *args)
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{
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int i = -1;
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PyObject *v;
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if (!PyArg_ParseTuple(args, "|i:pop", &i))
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return NULL;
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if (self->ob_size == 0) {
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/* Special-case most common failure cause */
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PyErr_SetString(PyExc_IndexError, "pop from empty array");
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return NULL;
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}
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if (i < 0)
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i += self->ob_size;
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if (i < 0 || i >= self->ob_size) {
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PyErr_SetString(PyExc_IndexError, "pop index out of range");
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return NULL;
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}
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v = getarrayitem((PyObject *)self,i);
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if (array_ass_slice(self, i, i+1, (PyObject *)NULL) != 0) {
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Py_DECREF(v);
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return NULL;
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}
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return v;
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}
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static char pop_doc [] =
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"pop ([i])\n\
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\n\
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Return the i-th element and delete it from the array. i defaults to -1.";
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static PyObject *
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array_extend(self, args)
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arrayobject *self;
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PyObject *args;
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{
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int size;
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PyObject *bb;
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arrayobject *np;
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if (!PyArg_ParseTuple(args, "O:extend", &bb))
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return NULL;
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if (!is_arrayobject(bb)) {
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PyErr_Format(PyExc_TypeError,
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"can only append array (not \"%.200s\") to array",
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bb->ob_type->tp_name);
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return NULL;
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}
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#define b ((arrayobject *)bb)
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if (self->ob_descr != b->ob_descr) {
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PyErr_SetString(PyExc_TypeError,
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"can only append arrays of same kind");
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return NULL;
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}
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size = self->ob_size + b->ob_size;
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PyMem_RESIZE(self->ob_item, char, size*self->ob_descr->itemsize);
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if (self->ob_item == NULL) {
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PyObject_Del(self);
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return PyErr_NoMemory();
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}
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memcpy(self->ob_item + self->ob_size*self->ob_descr->itemsize,
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b->ob_item, b->ob_size*b->ob_descr->itemsize);
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self->ob_size = size;
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Py_INCREF(Py_None);
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return Py_None;
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#undef b
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}
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static char extend_doc [] =
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"extend(array)\n\
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\n\
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Append array items to the end of the array.";
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static PyObject *
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array_insert(arrayobject *self, PyObject *args)
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{
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@ -816,74 +973,6 @@ static char reverse_doc [] =
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\n\
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Reverse the order of the items in the array.";
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/* The following routines were adapted from listobject.c but not converted.
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To make them work you will have to work! */
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#if 0
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static PyObject *
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array_index(arrayobject *self, PyObject *args)
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{
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int i;
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if (args == NULL) {
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PyErr_BadArgument();
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return NULL;
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}
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for (i = 0; i < self->ob_size; i++) {
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if (PyObject_Compare(self->ob_item[i], args) == 0)
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return PyInt_FromLong((long)i);
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/* XXX PyErr_Occurred */
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}
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PyErr_SetString(PyExc_ValueError, "array.index(x): x not in array");
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return NULL;
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}
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#endif
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#if 0
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static PyObject *
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array_count(arrayobject *self, PyObject *args)
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{
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int count = 0;
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int i;
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if (args == NULL) {
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PyErr_BadArgument();
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return NULL;
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}
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for (i = 0; i < self->ob_size; i++) {
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if (PyObject_Compare(self->ob_item[i], args) == 0)
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count++;
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/* XXX PyErr_Occurred */
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}
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return PyInt_FromLong((long)count);
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}
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#endif
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#if 0
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static PyObject *
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array_remove(arrayobject *self, PyObject *args)
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{
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int i;
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if (args == NULL) {
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PyErr_BadArgument();
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return NULL;
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}
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for (i = 0; i < self->ob_size; i++) {
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if (PyObject_Compare(self->ob_item[i], args) == 0) {
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if (array_ass_slice(self, i, i+1,
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(PyObject *)NULL) != 0)
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return NULL;
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Py_INCREF(Py_None);
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return Py_None;
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}
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/* XXX PyErr_Occurred */
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}
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PyErr_SetString(PyExc_ValueError, "array.remove(x): x not in array");
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return NULL;
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}
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#endif
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static PyObject *
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array_fromfile(arrayobject *self, PyObject *args)
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{
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@ -1095,16 +1184,18 @@ PyMethodDef array_methods[] = {
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{"buffer_info", (PyCFunction)array_buffer_info, 0, buffer_info_doc},
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{"byteswap", (PyCFunction)array_byteswap, METH_VARARGS,
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byteswap_doc},
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/* {"count", (method)array_count},*/
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{"count", (PyCFunction)array_count, 1, count_doc},
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{"extend", (PyCFunction)array_extend, 1, extend_doc},
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{"fromfile", (PyCFunction)array_fromfile, 0, fromfile_doc},
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{"fromlist", (PyCFunction)array_fromlist, 0, fromlist_doc},
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{"fromstring", (PyCFunction)array_fromstring, 0, fromstring_doc},
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/* {"index", (method)array_index},*/
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{"index", (PyCFunction)array_index, 1, index_doc},
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{"insert", (PyCFunction)array_insert, 0, insert_doc},
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{"pop", (PyCFunction)array_pop, 1, pop_doc},
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{"read", (PyCFunction)array_fromfile, 0, fromfile_doc},
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/* {"remove", (method)array_remove},*/
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{"remove", (PyCFunction)array_remove, 1, remove_doc},
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{"reverse", (PyCFunction)array_reverse, 0, reverse_doc},
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/* {"sort", (method)array_sort},*/
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/* {"sort", (PyCFunction)array_sort, 0, sort_doc},*/
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{"tofile", (PyCFunction)array_tofile, 0, tofile_doc},
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{"tolist", (PyCFunction)array_tolist, 0, tolist_doc},
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{"tostring", (PyCFunction)array_tostring, 0, tostring_doc},
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@ -1364,11 +1455,16 @@ Methods:\n\
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append() -- append a new item to the end of the array\n\
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buffer_info() -- return information giving the current memory info\n\
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byteswap() -- byteswap all the items of the array\n\
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count() -- return number of occurences of an object\n\
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extend() -- extend array by appending array elements\n\
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fromfile() -- read items from a file object\n\
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fromlist() -- append items from the list\n\
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fromstring() -- append items from the string\n\
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index() -- return index of first occurence of an object\n\
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insert() -- insert a new item into the array at a provided position\n\
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pop() -- remove and return item (default last)\n\
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read() -- DEPRECATED, use fromfile()\n\
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remove() -- remove first occurence of an object\n\
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reverse() -- reverse the order of the items in the array\n\
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tofile() -- write all items to a file object\n\
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tolist() -- return the array converted to an ordinary list\n\
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