/*
* create_automatons_from_xml
*
* Once this functions is complete all the structure will be in place in the
* automaton_set to fill in the names of the automatons and transitions.
* It goes through the file twice. The first time counting the number of
* automatons and then allocating the memory required for that number.
* The second time it creates each of the automatons and puts them into the
* automaton set.
*
* They get entered into the array in the order that they appear in the file.
*
* Parameters: xml_file - A reference to the structure that contains the entire
* xml.
* automaton_set - The collection of automatons to be filled in.
* state_callback - Callback function to generate the states for
* each of the automatons.
* event_callback - Callback function to generate the events for
* each of the automatons.
*/
void create_automatons_from_xml(ezxml_t *xml_file,
AUTOMATON_SET *automaton_set,
int (*state_callback)(AUTOMATON_STATE ***,int),
int (*event_callback)(AUTOMATON_EVENT ***))
{
/*
* Local Variables.
*/
int ii;
int num_automatons;
ezxml_t xml_automaton;
/*
* Count the number of automaton objects in this file. We need to know this
* so that we allocate the memory for the automaton array.
*/
num_automatons = 0;
for (xml_automaton = ezxml_child(*xml_file, "automaton");
xml_automaton;
xml_automaton = xml_automaton->next)
{
num_automatons++;
}
automaton_set->num_automatons = num_automatons;
/*
* Attempt to allocate the memory for the automaton array.
*/
automaton_set->automaton_array =
(AUTOMATON **) DT_MALLOC(sizeof(AUTOMATON *) * num_automatons);
/*
* Create each of the automatons individually.
*/
ii = 0;
for (xml_automaton = ezxml_child(*xml_file, "automaton");
xml_automaton;
xml_automaton = xml_automaton->next)
{
/*
* This allocated the memory and sets up the state, event tables.
*/
automaton_set->automaton_array[ii] = create_automaton(state_callback,
event_callback);
ii++;
}
}
int main ()
{
Automaton *a = create_automaton();
int e0 = add_state(a);
int e1 = add_state(a);
int e2 = add_state(a);
set_initial(a, e1);
set_final(a, e2);
add_arc(a, e0, e1, 1);
add_arc(a, e1, e1, 2);
add_arc(a, e1, e2, 3);
print_automaton(a);
return 0;
}
