C++ NodeSet::push_back方法代码示例

  virtual void execute(const DOM::Node<string_type, string_adaptor>& node, 
                       ExecutionContext<string_type, string_adaptor>& context) const
  {
    ParamPasser<string_type, string_adaptor> passer(*this, node, context);

    if(!SortableT::has_sort() && select_ == 0)
    {
      if(node.hasChildNodes())
        context.stylesheet().applyTemplates(node.getChildNodes(), context, mode_);
      return;
    }

    Arabica::XPath::NodeSet<string_type, string_adaptor> nodes;
    if(select_ == 0)
      for(DOM::Node<string_type, string_adaptor> n = node.getFirstChild(); n != 0; n = n.getNextSibling())
        nodes.push_back(n);
    else
    {
      Arabica::XPath::XPathValue<string_type, string_adaptor> value = select_->evaluate(node, context.xpathContext());
      if(value.type() != Arabica::XPath::NODE_SET)
        throw std::runtime_error("apply-templates select expression is not a node-set");
      nodes = value.asNodeSet();
    }
    this->sort(node, nodes, context);
    context.stylesheet().applyTemplates(nodes, context, mode_);
  } // execute

  virtual Arabica::XPath::NodeSet<std::string> doEvaluate(const DOM::Node<std::string>& /* context */, 
							  const Arabica::XPath::ExecutionContext<std::string>& executionContext) const
  {
    Arabica::XPath::NodeSet<std::string> set;
    set.push_back(executionContext.currentNode());
    return set;
  } // doEvaluate

Arabica::XPath::NodeSet<std::string> InterpreterDraft6::filterPreempted(const Arabica::XPath::NodeSet<std::string>& enabledTransitions) {
	Arabica::XPath::NodeSet<std::string> filteredTransitions;
	for (unsigned int i = 0; i < enabledTransitions.size(); i++) {
		Node<std::string> t = enabledTransitions[i];
		if (!isTargetless(t)) {
			for (unsigned int j = 0; j < filteredTransitions.size(); j++) {
				if (j == i)
					continue;
				Node<std::string> t2 = filteredTransitions[j];
				if (isPreemptingTransition(t2, t)) {
#if 0
					std::cout << "#####" << std::endl << "Transition " << std::endl
					          << t2 << std::endl << " preempts " << std::endl << t << std::endl << "#####" << std::endl;
#endif
					goto LOOP;
				}
			}
		}
#if 0
		std::cout << "----" << "Enabling Transition " << std::endl << t << std::endl;
#endif

		filteredTransitions.push_back(t);
LOOP:
		;
	}
	return filteredTransitions;
}

  Arabica::XPath::NodeSet<std::string> nodeSetUnion(const std::string& keyClarkName, 
							     const Arabica::XPath::NodeSet<std::string> nodes,
							     const Arabica::XPath::ExecutionContext<std::string>& executionContext) const
  {
    Arabica::XPath::NodeSet<std::string> results;
    for(Arabica::XPath::NodeSet<std::string>::const_iterator n = nodes.begin(), ne = nodes.end(); n != ne; ++n)
    {
      std::string id = Arabica::XPath::impl::nodeStringValue<std::string, Arabica::default_string_adaptor<std::string> >(*n);
      results.push_back(keys_.lookup(keyClarkName, id, executionContext));
    } // for ...
    results.to_document_order();
    return results;
  } // nodeSetUnion

Arabica::XPath::NodeSet<std::string> InterpreterDraft6::selectTransitions(const std::string& event) {
	Arabica::XPath::NodeSet<std::string> enabledTransitions;

	NodeSet<std::string> states;
	for (unsigned int i = 0; i < _configuration.size(); i++) {
		if (isAtomic(_configuration[i]))
			states.push_back(_configuration[i]);
	}
	states.to_document_order();

#if 0
	std::cout << "Atomic states: " << std::endl;
	for (int i = 0; i < states.size(); i++) {
		std::cout << states[i] << std::endl << "----" << std::endl;
	}
	std::cout << std::endl;
#endif

	unsigned int index = 0;
	while(states.size() > index) {
		bool foundTransition = false;
		NodeSet<std::string> transitions = filterChildElements(_nsInfo.xmlNSPrefix + "transition", states[index]);
		for (unsigned int k = 0; k < transitions.size(); k++) {
			if (isEnabledTransition(transitions[k], event)) {
				enabledTransitions.push_back(transitions[k]);
				foundTransition = true;
				goto LOOP;
			}
		}
		if (!foundTransition) {
			Node<std::string> parent = states[index].getParentNode();
			if (parent) {
				states.push_back(parent);
			}
		}
LOOP:
		index++;
	}

	enabledTransitions = filterPreempted(enabledTransitions);

#if 0
	std::cout << "Enabled transitions: " << std::endl;
	for (int i = 0; i < enabledTransitions.size(); i++) {
		std::cout << DOMUtils::xPathForNode(enabledTransitions[i]) << std::endl;
	}
	std::cout << std::endl;
#endif

	return enabledTransitions;
}

Arabica::XPath::NodeSet<std::string> InterpreterDraft6::selectEventlessTransitions() {
	Arabica::XPath::NodeSet<std::string> enabledTransitions;

	NodeSet<std::string> states;
	for (unsigned int i = 0; i < _configuration.size(); i++) {
		if (isAtomic(_configuration[i]))
			states.push_back(_configuration[i]);
	}
	states.to_document_order();

#if 0
	std::cout << "Atomic States: ";
	for (int i = 0; i < atomicStates.size(); i++) {
		std::cout << ATTR(atomicStates[i], "id") << ", ";
	}
	std::cout << std::endl;
#endif

	unsigned int index = 0;
	while(states.size() > index) {
		bool foundTransition = false;
		NodeSet<std::string> transitions = filterChildElements(_nsInfo.xmlNSPrefix + "transition", states[index]);
		for (unsigned int k = 0; k < transitions.size(); k++) {
			if (!HAS_ATTR(transitions[k], "event") && hasConditionMatch(transitions[k])) {
				enabledTransitions.push_back(transitions[k]);
				foundTransition = true;
				goto LOOP;
			}
		}
		if (!foundTransition) {
			Node<std::string> parent = states[index].getParentNode();
			if (parent) {
				states.push_back(parent);
			}
		}
LOOP:
		index++;
	}

#if 0
	std::cout << "Enabled eventless transitions: " << std::endl;
	for (int i = 0; i < enabledTransitions.size(); i++) {
		std::cout << enabledTransitions[i] << std::endl << "----" << std::endl;
	}
	std::cout << std::endl;
#endif

	enabledTransitions = filterPreempted(enabledTransitions);
	return enabledTransitions;
}

  void load_document(const std::string& location,
                     Arabica::XPath::NodeSet<std::string>& nodes) const
  {
    SAX2DOM::Parser<std::string> domParser;
    SAX::CatchErrorHandler<std::string> eh;
    domParser.setErrorHandler(eh);

    Arabica::io::URI base(baseURI_);
    Arabica::io::URI absolute(base, location);

    SAX::InputSource<std::string> is(absolute.as_string());
    domParser.parse(is);

    if(!eh.errorsReported())
        nodes.push_back(domParser.getDocument());
    else
        std::cerr << eh.errors() << std::endl;
  } // load_document