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Added code submitted by Andreas Pakulat to provide node equality,

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* python/libxml.c, python/libxml.py, python/tests/compareNodes.py,
  python/tests/Makefile.am:
  Added code submitted by Andreas Pakulat to provide node
  equality, inequality and hash functions, plus a single
  test program to check the functions (bugs 345779 + 345961).
This commit is contained in:
William M. Brack
2006-06-26 18:25:40 +00:00
parent 631ea8176a
commit 40cca61fc1
5 changed files with 113 additions and 1 deletions
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36
python/libxml.c
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@ -3677,6 +3677,40 @@ libxml_getObjDesc(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
return Py_BuildValue((char *)"s", str);
}
static PyObject *
libxml_compareNodesEqual(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
PyObject *py_node1, *py_node2;
xmlNodePtr node1, node2;
if (!PyArg_ParseTuple(args, (char *)"OO:compareNodesEqual",
&py_node1, &py_node2))
return NULL;
/* To compare two node objects, we compare their pointer addresses */
node1 = PyxmlNode_Get(py_node1);
node2 = PyxmlNode_Get(py_node2);
if ( node1 == node2 )
return Py_BuildValue((char *)"i", 1);
else
return Py_BuildValue((char *)"i", 0);
}
static PyObject *
libxml_nodeHash(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
PyObject *py_node1;
xmlNodePtr node1;
if (!PyArg_ParseTuple(args, (char *)"O:nodeHash", &py_node1))
return NULL;
/* For simplicity, we use the node pointer address as a hash value */
node1 = PyxmlNode_Get(py_node1);
return PyLong_FromVoidPtr(node1);
}
/************************************************************************
* *
* The registration stuff *
@ -3730,6 +3764,8 @@ static PyMethodDef libxmlMethods[] = {
#endif
#endif
{(char *) "getObjDesc", libxml_getObjDesc, METH_VARARGS, NULL},
{(char *) "compareNodesEqual", libxml_compareNodesEqual, METH_VARARGS, NULL},
{(char *) "nodeHash", libxml_nodeHash, METH_VARARGS, NULL},
{NULL, NULL, 0, NULL}
};