FileParser.h

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/* Copyright 2016 Kristofer Björnson and Andreas Theiler
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef COM_DAFER45_TBTK_FILE_PARSER
#define COM_DAFER45_TBTK_FILE_PARSER

#include "TBTK/Model.h"
#include "TBTK/ParameterSet.h"

#include <string>
#include <fstream>
#include <sstream>
#include <iostream>

namespace TBTK{

class FileParser{
public:
    enum class AmplitudeMode{
        ALL,
        ALL_EXCEPT_HC,
        UNIT_CELL,
        UNIT_CELL_EXCEPT_HC
    };

    static void writeModel(
        Model *model,
        std::string fileName,
        AmplitudeMode amplitudeMode,
        std::string description
    );

    static Model* readModel(std::string fileName);

    static void writeParameterSet(
        const ParameterSet &parameterSet,
        std::string fileName
    );

    static ParameterSet readParameterSet(std::string fileName);
private:
    static void openOutput(std::string fileName);

    static void closeOutput();

    static void readInput(std::string fileName);

    static void writeLineBreaks(int numLineBreaks);

    static void writeTabs(int numTabs);

    static void write(std::complex<double> value);

    static void write(const Index &index);

    static void writeCoordinates(
//      const double *coordinates,
        const std::vector<double> &coordinates/*,
        int numCoordinates*/
    );

//  static void writeSpecifiers(const int *specifiers, int numSpecifiers);
    static void writeSpecifiers(const std::vector<int> &specifiers);

    static void writeDescription(std::string description);

    static void writeAmplitudes(Model *model, AmplitudeMode amplitudeMode);

    static void writeGeometry(Model *model);

    static void removeComments();

    static void removeInitialWhiteSpaces();

    static int readParameter(
        std::string parameterName,
        std::string parentStructure
    );

    static void readAmplitudes(Model *model);

    static void readGeometry(Model *model);

    static HoppingAmplitude* readHoppingAmplitude();

    static Index* readIndex();

    static void readCoordinates(
        std::vector<double> *coordinates,
        int dimensions
    );

    static void readSpecifiers(
        std::vector<int> *specifiers,
        int numSpecifiers
    );

    static bool readComplex(std::complex<double> *c);

    static bool readDouble(double *d, char endChar = ' ');

    static bool readInt(int *i, char endChar = ' ');

    static std::ofstream fout;

    static std::stringstream ssin;
};

};  //End of namespace TBTK

#endif