File pairmaker.h

File List > code_source > templat > include > TempLat > parameters > pairmaker.h
#ifndef TEMPLAT_PARAMETERS_PAIRMAKER_H
#define TEMPLAT_PARAMETERS_PAIRMAKER_H

/* This file is part of TempLat, available at https://cosmolattice.github.io/templat .
   Copyright 2021-2026 The TempLat authors, see AUTHORS.md.
   Released under the MIT license, see LICENSE.md. */

// File info: Main contributor(s): Adrien Florio, Year: 2019

#include <ostream>

namespace TempLat
{
  class PairMaker
  {
  public:
    // Put public methods here. These should change very little over time.
    PairMaker(const char &sep = '=', const char &com = '#') : separator(sep), comment(com) {}

    std::string getKey() { return key; }
    std::string getValue() { return value; }

    void operator()(std::string line)
    {
      size_t pos = line.find_first_of(separator);
      size_t posCom = line.find_first_of(comment);
      line = line.substr(0, posCom);
      key = line.substr(0, pos);
      value = line.substr(pos + 1);
      cleanSpaces(key);
      cleanSpaces(value);
    }
    friend std::ostream &operator<<(std::ostream &os, const PairMaker &pm)
    {
      os << pm.key << pm.separator << pm.value << std::endl;
      return os;
    }

  private:
    /* Put all member variables and private methods here. These may change arbitrarily. */
    std::string key;
    std::string value;
    const char separator;
    const char comment;

    void cleanSpaces(std::string &str) // Remove space at begining and end of string.
    {
      while (str.size() > 0 && str[str.size() - 1] == ' ')
        str.pop_back();
      while (str.size() > 0 && str[0] == ' ')
        str.erase(0, 1);
    }
  };
} // namespace TempLat

#endif