Add TableFileReader

/* -*- c++ -*- ----------------------------------------------------------

   LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator

   http://lammps.sandia.gov, Sandia National Laboratories

   Steve Plimpton, sjplimp@sandia.gov

   Copyright (2003) Sandia Corporation.  Under the terms of Contract

   DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains

   certain rights in this software.  This software is distributed under

   the GNU General Public License.

   See the README file in the top-level LAMMPS directory.

------------------------------------------------------------------------- */

/* ----------------------------------------------------------------------

   Contributing authors: Richard Berger (Temple U)

------------------------------------------------------------------------- */

#include "lammps.h"

#include "error.h"

#include "table_file_reader.h"

#include "utils.h"

#include "tokenizer.h"

#include "fmt/format.h"

#include <cstring>

using namespace LAMMPS_NS;

TableFileReader::TableFileReader(LAMMPS *lmp,

                                         const std::string &filename) : 

  PotentialFileReader(lmp, filename, "table")

{

}

TableFileReader::~TableFileReader() {

}

char * TableFileReader::find_section_start(const std::string & keyword) {

  char * line = nullptr;

  while (line = reader->next_line()) {

    ValueTokenizer values(line);

    std::string word = values.next_string();

    if (word == keyword) {

      // matching keyword

      return line;

    }

  }

  return nullptr;

}

/* -*- c++ -*- ----------------------------------------------------------

   LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator

   http://lammps.sandia.gov, Sandia National Laboratories

   Steve Plimpton, sjplimp@sandia.gov

   Copyright (2003) Sandia Corporation.  Under the terms of Contract

   DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains

   certain rights in this software.  This software is distributed under

   the GNU General Public License.

   See the README file in the top-level LAMMPS directory.

------------------------------------------------------------------------- */

/* ----------------------------------------------------------------------

   Contributing authors: Richard Berger (Temple U)

------------------------------------------------------------------------- */

#ifndef LMP_TABLE_FILE_READER_H

#define LMP_TABLE_FILE_READER_H

#include "potential_file_reader.h"

namespace LAMMPS_NS

{

  class TableFileReader : public PotentialFileReader {

  public:

    TableFileReader(class LAMMPS *lmp, const std::string &filename);

    virtual ~TableFileReader();

    char * find_section_start(const std::string & keyword);

  };

} // namespace LAMMPS_NS

#endif