CmdLineArgParser.h

 
#include <cstdlib>
#include <iostream>
#include <string>
#include <map>
#include <limits>
 
#ifndef CMD_LINE_ARG_PARSER_H
#define CMD_LINE_ARG_PARSER_H

class CmdLineArgParser {
 
 public:

  CmdLineArgParser() {
    // always activate -h
    this->set("-h", false, "Print help.");
    this->footer = "\n";
  }
 
  // Setters
  void set(const std::string& name, double defaultVal,
           const std::string& help);
  void set(const std::string& name, int defaultVal,
           const std::string& help);
  void set(const std::string& name, const std::string& defaultVal, 
           const std::string& help);
  void set(const std::string& name, bool defaultVal,
           const std::string& help);

  bool parse(int argc, char *argv[]);

  void setPurpose(const std::string& purpose) {
    this->purpose = purpose;
  }

  void print() const;

  void help() const;

  void addFootnote(const std::string& note) {
    this->footer = note + "\n" + this->footer;
  }
 
  // Accessors

  template <class T>
  T get(const std::string& name) const;
 
 private:

  std::map<std::string, double> doubleArg;
  std::map<std::string, int> intArg;
  std::map<std::string, std::string> stringArg;
  std::map<std::string, bool> boolArg;

  std::map<std::string, std::string> doubleArgHelp;
  std::map<std::string, std::string> intArgHelp;
  std::map<std::string, std::string> stringArgHelp;
  std::map<std::string, std::string> boolArgHelp;

  std::string execName;

  std::string purpose;

  std::string footer;
};
 
#endif // CMD_LINE_ARG_PARSER_H