int Validator_StartElement(PyObject *self, PyObject *name)
{
PyObject *element_type;
Context *context;
PyObject *dfa;
if (!Validator_Check(self)) {
PyErr_BadInternalCall();
return -1;
}
#ifdef DEBUG_VALIDATION
fprintf(stderr, "Validator_StartElement(name=");
PyObject_Print(name, stderr, 0);
fprintf(stderr, ")\n");
#endif
/* Switch to this element's content model. element_type will be NULL
* if not found, following code will just consider that as an ANY content
* model to allow for continued processing if error reporting doesn't
* raise an exception. */
element_type = PyDict_GetItem(Validator_Elements(self), name);
context = Validator_FreeContext(self);
if (context == NULL) {
/* create a new context */
context = Context_New(element_type);
if (context == NULL) {
return -1;
}
} else {
/* reuse an existing context */
Validator_FreeContext(self) = context->next;
context->element = element_type;
}
/* setup initial state */
if (element_type != NULL) {
dfa = ElementType_GET_MODEL(element_type);
/* dfa may be NULL for an ANY content model */
if (dfa != NULL) {
context->state = DFA_GetInitialState(dfa);
} else {
context->state = NULL;
}
}
/* make it the active context */
context->next = Validator_Context(self);
Validator_Context(self) = context;
return element_type != NULL;
}
ParserState_AddContext(ParserState *self, NodeObject *node)
{
Context *context = self->free_context;
if (context != NULL) {
/* reuse an existing context */
context->node = node;
/* Set the node children working set */
_Container_SetWorkingChildren(node,context->children,context->children_allocated);
self->free_context = context->next;
} else {
/* create a new context */
context = Context_New(node);
if (context == NULL) return NULL;
}
/* make it the active context */
context->next = self->context;
self->context = context;
return context;
}
