SectionParserManager.hpp

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 * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
 * research, please cite the appropriate papers when you publish your
 * work.  Good starting points are:
 *
 * [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).
 * [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).
 * [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).
 * [4] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
 * [5] Kuang & Gezelter, Mol. Phys., 110, 691-701 (2012).
 * [6] Lamichhane, Gezelter & Newman, J. Chem. Phys. 141, 134109 (2014).
 * [7] Lamichhane, Newman & Gezelter, J. Chem. Phys. 141, 134110 (2014).
 * [8] Bhattarai, Newman & Gezelter, Phys. Rev. B 99, 094106 (2019).
 */
 
#ifndef IO_SECTIONPARSERMANAGER_HPP
#define IO_SECTIONPARSERMANAGER_HPP
 
#include <list>
 
#include "io/SectionParser.hpp"
 
namespace OpenMD {
 
  struct SectionParserContext {
    int priority;
    SectionParser* sectionParser;
    int lineNo;
    std::streampos offset;
    bool isActive;
  };
 
  class SameSectionParserFunctor {
  public:
    SameSectionParserFunctor(const std::string& section) : section_(section) {}
 
    bool operator()(SectionParserContext context) {
      return context.sectionParser->getSectionName() == section_;
    }
 
  private:
    std::string section_;
  };
  /**
   * @class SectionParserManager SectionParserManager.hpp
   * "io/SectionParserManager.hpp" SectionParserManager maintains a priority
   * list
   */
  class SectionParserManager {
  public:
    using SectionParserContextList = std::list<SectionParserContext>;
    using iterator                 = SectionParserContextList::iterator;
    using const_iterator           = SectionParserContextList::const_iterator;
 
    SectionParserManager() : beginPriority_(0), priorityDifference_(100) {}
    ~SectionParserManager();
 
    void parse(std::istream& input, ForceField& ff);
 
    void push_front(SectionParser* sp);
 
    void push_back(SectionParser* sp);
 
    void insert(SectionParser* sp, int priority);
 
    const_iterator begin() const { return sectionParsers_.begin(); }
 
    const_iterator end() const { return sectionParsers_.end(); }
 
  private:
    iterator findSectionParser(const std::string& sectionName);
    const int beginPriority_;
    int priorityDifference_;
 
    SectionParserContextList sectionParsers_;
  };
}  // namespace OpenMD
 
#endif  // IO_SECTIONPARSERMANAGER_HPP