OneTapeDTM.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/TM/OneTapeDTM.h>
#include "../common/AutomatonFromXMLParser.h"
#include "../common/AutomatonToXMLComposer.h"
 
namespace core {
 
template < class SymbolType, class StateType >
struct xmlApi < automaton::OneTapeDTM < SymbolType, StateType > > {
    static std::string xmlTagName() {
        return "OneTapeDTM";
    }
 
    static bool first ( const ext::deque < sax::Token >::const_iterator & input ) {
        return sax::FromXMLParserHelper::isToken ( input, sax::Token::TokenType::START_ELEMENT, xmlTagName ( ) );
    }
 
    static automaton::OneTapeDTM < SymbolType, StateType > parse ( ext::deque < sax::Token >::iterator & input );
 
    static void parseTransition ( ext::deque < sax::Token >::iterator & input, automaton::OneTapeDTM < SymbolType, StateType > & automaton );
 
    static void compose ( ext::deque < sax::Token > & out, const automaton::OneTapeDTM < SymbolType, StateType > & automaton );
 
    static void composeTransitions ( ext::deque < sax::Token > & out, const automaton::OneTapeDTM < SymbolType, StateType > & automaton );
};
 
template < class SymbolType, class StateType >
automaton::OneTapeDTM < SymbolType, StateType > xmlApi < automaton::OneTapeDTM < SymbolType, 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<SymbolType> tapeSymbols = automaton::AutomatonFromXMLParser::parseTapeAlphabet<SymbolType>(input);
    ext::set<SymbolType> inputSymbols = automaton::AutomatonFromXMLParser::parseInputAlphabet<SymbolType>(input);
    SymbolType blank = automaton::AutomatonFromXMLParser::parseBlankSymbol<SymbolType>(input);
    StateType initialState = automaton::AutomatonFromXMLParser::parseInitialState<StateType>(input);
    ext::set<StateType> finalStates = automaton::AutomatonFromXMLParser::parseFinalStates<StateType>(input);
 
    automaton::OneTapeDTM < SymbolType, StateType > automaton(std::move(initialState), std::move(blank));
    automaton.setStates(std::move(states));
    automaton.setTapeAlphabet(std::move(tapeSymbols));
    automaton.setInputAlphabet(std::move(inputSymbols));
    automaton.setFinalStates(std::move(finalStates));
 
    automaton::AutomatonFromXMLParser::parseTransitions ( input, automaton );
 
    sax::FromXMLParserHelper::popToken ( input, sax::Token::TokenType::END_ELEMENT, xmlTagName ( ) );
    return automaton;
}
 
template<class SymbolType, class StateType >
void xmlApi < automaton::OneTapeDTM < SymbolType, StateType > >::parseTransition(ext::deque<sax::Token>::iterator& input, automaton::OneTapeDTM<SymbolType, StateType>& automaton) {
    sax::FromXMLParserHelper::popToken(input, sax::Token::TokenType::START_ELEMENT, "transition");
    StateType from = automaton::AutomatonFromXMLParser::parseTransitionFrom<StateType>(input);
    SymbolType inputSymbol = automaton::AutomatonFromXMLParser::parseTransitionInputSymbol<SymbolType>(input);
    StateType to = automaton::AutomatonFromXMLParser::parseTransitionTo<StateType>(input);
    SymbolType outputSymbol = automaton::AutomatonFromXMLParser::parseTransitionOutputSymbol<SymbolType>(input);
    automaton::Shift shift = automaton::AutomatonFromXMLParser::parseTransitionShift(input);
    sax::FromXMLParserHelper::popToken(input, sax::Token::TokenType::END_ELEMENT, "transition");
 
    automaton.addTransition(std::move(from), std::move(inputSymbol), std::move(to), std::move(outputSymbol), shift);
}
 
template<class SymbolType, class StateType >
void xmlApi < automaton::OneTapeDTM < SymbolType, StateType > >::compose(ext::deque<sax::Token>& out, const automaton::OneTapeDTM < SymbolType, StateType > & automaton ) {
    out.emplace_back ( xmlTagName(), sax::Token::TokenType::START_ELEMENT );
 
    automaton::AutomatonToXMLComposer::composeStates(out, automaton.getStates());
    automaton::AutomatonToXMLComposer::composeTapeAlphabet(out, automaton.getTapeAlphabet());
    automaton::AutomatonToXMLComposer::composeInputAlphabet(out, automaton.getInputAlphabet());
    automaton::AutomatonToXMLComposer::composeBlankSymbol(out, automaton.getBlankSymbol());
    automaton::AutomatonToXMLComposer::composeInitialState(out, automaton.getInitialState());
    automaton::AutomatonToXMLComposer::composeFinalStates(out, automaton.getFinalStates());
    composeTransitions(out, automaton);
 
    out.emplace_back ( xmlTagName ( ), sax::Token::TokenType::END_ELEMENT );
}
 
template<class SymbolType, class StateType >
void xmlApi < automaton::OneTapeDTM < SymbolType, StateType > >::composeTransitions(ext::deque<sax::Token>& out, const automaton::OneTapeDTM < SymbolType, 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, transition.first.first);
        automaton::AutomatonToXMLComposer::composeTransitionInputSymbol(out, transition.first.second);
        automaton::AutomatonToXMLComposer::composeTransitionTo(out, std::get<0>(transition.second));
        automaton::AutomatonToXMLComposer::composeTransitionOutputSymbol(out, std::get<1>(transition.second));
        automaton::AutomatonToXMLComposer::composeTransitionShift(out, std::get<2>(transition.second));
 
        out.emplace_back("transition", sax::Token::TokenType::END_ELEMENT);
    }
 
    out.emplace_back("transitions", sax::Token::TokenType::END_ELEMENT);
}
 
} /* namespace core */