SimpleAutomaton* SimpleAutomatonParser::parse() {
Token token;
expect(SimpleAutomatonToken::Automaton | SimpleAutomatonToken::Eof, token = m_tokenizer.nextToken());
if (token.type() == SimpleAutomatonToken::Eof)
return NULL;
SimpleAutomaton* automaton = new SimpleAutomaton();
try {
const SimpleAutomatonToken::Type allowed = SimpleAutomatonToken::States | SimpleAutomatonToken::Transition | SimpleAutomatonToken::InitialState |SimpleAutomatonToken::FinalStates | SimpleAutomatonToken::Eof;
expect(allowed, token = m_tokenizer.nextToken());
while (token.type() != SimpleAutomatonToken::Eof) {
if (token.type() == SimpleAutomatonToken::States)
parseStates(*automaton);
else if (token.type() == SimpleAutomatonToken::Transition)
parseTransition(*automaton);
else if (token.type() == SimpleAutomatonToken::InitialState)
parseInitialState(*automaton);
else if (token.type() == SimpleAutomatonToken::FinalStates)
parseFinalStates(*automaton);
expect(allowed, token = m_tokenizer.nextToken());
}
} catch (...) {
delete automaton;
throw;
}
return automaton;
}
bool XMLEngine::parse(const QString &data, StateList * states, TransitionList * transitions)
{
bool result = true;
if (validator->validate(data.toAscii()))
{
QXmlStreamReader reader(data);
if (reader.readNextStartElement())
{
if (compare(reader.name(), "activity_diagram"))
{
result &= parseStates(&reader, states, transitions);
result &= parseTransitions(&reader, states, transitions);
}
}
result &= !reader.hasError();
}
qDebug() << "Parse result" << result;
return result;
}
void SimpleAutomatonParser::parseFinalStates(SimpleAutomaton& automaton) {
FinalStateParserOp op(automaton);
parseStates(op);
}
