NPDA.h

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/*
 * This file is part of Algorithms library toolkit.
 * Copyright (C) 2017 Jan Travnicek (jan.travnicek@fit.cvut.cz)
 
 * Algorithms library toolkit is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 
 * Algorithms library toolkit is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 
 * You should have received a copy of the GNU General Public License
 * along with Algorithms library toolkit.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <core/xmlApi.hpp>
#include <automaton/PDA/NPDA.h>
#include "../common/AutomatonFromXMLParser.h"
#include "../common/AutomatonToXMLComposer.h"
 
namespace core {
 
template < class InputSymbolType, class PushdownStoreSymbolType, class StateType >
struct xmlApi < automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > > {
    static std::string xmlTagName ( ) {
        return "NPDA";
    }
 
    static bool first ( const ext::deque < sax::Token >::const_iterator & input ) {
        return sax::FromXMLParserHelper::isToken ( input, sax::Token::TokenType::START_ELEMENT, xmlTagName ( ) );
    }
 
    static automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > parse ( ext::deque < sax::Token >::iterator & input );
 
    static void parseTransition ( ext::deque < sax::Token >::iterator & input, automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > & automaton );
 
    static void compose ( ext::deque < sax::Token > & out, const automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > & automaton );
 
    static void composeTransitions ( ext::deque < sax::Token > & out, const automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > & automaton );
};
 
template < class InputSymbolType, class PushdownStoreSymbolType, class StateType >
automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > xmlApi < automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > >::parse(ext::deque<sax::Token>::iterator& input) {
    sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::START_ELEMENT, xmlTagName ( ) );
 
    ext::set<StateType> states = automaton::AutomatonFromXMLParser::parseStates<StateType>(input);
    ext::set < InputSymbolType > inputSymbols = automaton::AutomatonFromXMLParser::parseInputAlphabet < InputSymbolType > ( input );
    ext::set<PushdownStoreSymbolType> pushdownStoreSymbols = automaton::AutomatonFromXMLParser::parsePushdownStoreAlphabet<PushdownStoreSymbolType>(input);
    StateType initialState = automaton::AutomatonFromXMLParser::parseInitialState<StateType>(input);
    PushdownStoreSymbolType initialPushdownStoreSymbol = automaton::AutomatonFromXMLParser::parseInitialPushdownStoreSymbol<PushdownStoreSymbolType>(input);
    ext::set<StateType> finalStates = automaton::AutomatonFromXMLParser::parseFinalStates<StateType>(input);
 
    automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > automaton(std::move(initialState), std::move(initialPushdownStoreSymbol));
    automaton.setStates(std::move(states));
    automaton.setInputAlphabet(std::move(inputSymbols));
    automaton.setPushdownStoreAlphabet(std::move(pushdownStoreSymbols));
    automaton.setFinalStates(std::move(finalStates));
 
    automaton::AutomatonFromXMLParser::parseTransitions ( input, automaton );
 
    sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::END_ELEMENT, xmlTagName ( ) );
    return automaton;
}
 
template < class InputSymbolType, class PushdownStoreSymbolType, class StateType >
void xmlApi < automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > >::parseTransition(ext::deque<sax::Token>::iterator& input, automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > & automaton) {
    sax::FromXMLParserHelper::popToken(input, sax::Token::TokenType::START_ELEMENT, "transition");
    StateType from = automaton::AutomatonFromXMLParser::parseTransitionFrom<StateType>(input);
    common::symbol_or_epsilon < InputSymbolType > inputSymbol = automaton::AutomatonFromXMLParser::parseTransitionInputSymbol < common::symbol_or_epsilon < InputSymbolType > > ( input );
    ext::vector<PushdownStoreSymbolType> pop = automaton::AutomatonFromXMLParser::parseTransitionPop<PushdownStoreSymbolType>(input);
    StateType to = automaton::AutomatonFromXMLParser::parseTransitionTo<StateType>(input);
    ext::vector<PushdownStoreSymbolType> push = automaton::AutomatonFromXMLParser::parseTransitionPush<PushdownStoreSymbolType>(input);
    sax::FromXMLParserHelper::popToken(input, sax::Token::TokenType::END_ELEMENT, "transition");
 
    automaton.addTransition(std::move(from), std::move(inputSymbol), std::move(pop), std::move(to), std::move(push));
}
 
template < class InputSymbolType, class PushdownStoreSymbolType, class StateType >
void xmlApi < automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > >::compose ( ext::deque < sax::Token > & out, const automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > & automaton ) {
    out.emplace_back ( xmlTagName ( ), sax::Token::TokenType::START_ELEMENT );
 
    automaton::AutomatonToXMLComposer::composeStates(out, automaton.getStates());
    automaton::AutomatonToXMLComposer::composeInputAlphabet(out, automaton.getInputAlphabet());
    automaton::AutomatonToXMLComposer::composePushdownStoreAlphabet(out, automaton.getPushdownStoreAlphabet());
    automaton::AutomatonToXMLComposer::composeInitialState(out, automaton.getInitialState());
    automaton::AutomatonToXMLComposer::composeInitialPushdownStoreSymbol(out, automaton.getInitialSymbol());
    automaton::AutomatonToXMLComposer::composeFinalStates(out, automaton.getFinalStates());
    composeTransitions ( out, automaton );
 
    out.emplace_back ( xmlTagName ( ), sax::Token::TokenType::END_ELEMENT );
}
 
template < class InputSymbolType, class PushdownStoreSymbolType, class StateType >
void xmlApi < automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > >::composeTransitions ( ext::deque < sax::Token > & out, const automaton::NPDA < InputSymbolType, PushdownStoreSymbolType, StateType > & automaton ) {
    out.emplace_back("transitions", sax::Token::TokenType::START_ELEMENT);
    for(const auto& transition : automaton.getTransitions()) {
        out.emplace_back("transition", sax::Token::TokenType::START_ELEMENT);
 
        automaton::AutomatonToXMLComposer::composeTransitionFrom(out, std::get<0>(transition.first));
        automaton::AutomatonToXMLComposer::composeTransitionInputSymbol(out, std::get<1>(transition.first));
        automaton::AutomatonToXMLComposer::composeTransitionPop(out, std::get<2>(transition.first));
        automaton::AutomatonToXMLComposer::composeTransitionTo(out, transition.second.first);
        automaton::AutomatonToXMLComposer::composeTransitionPush(out, transition.second.second);
 
        out.emplace_back("transition", sax::Token::TokenType::END_ELEMENT);
    }
 
    out.emplace_back("transitions", sax::Token::TokenType::END_ELEMENT);
}
 
} /* namespace core */