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[h316.git] / pc-tools / ldc2 / src / argument_reader.hh

#ifndef ARGUMENT_READER_H
#define ARGUMENT_READER_H

#include <vector>
#include <string>

using namespace std;

/*!
 *\brief Hachti's wonderful commandline parser.
 *
 * This class is designed to do all the work with the parameters passed to 
 * the main() routine of a program.\n
 * Usage:\n
 *   - Create an instance.
 *   - Add Parameters/switches with add_param().
 *   - Add Arguments with add_argument().
 *   - Call read_args() with your main routine's arguments.\
 *     The vector returned by read_args() contains all error	\
 *     messages. When it's empty, everything is fine!
 *   - Call get_help() if you want nice formatted help output.	\
 *     (You want!!!)
 * Sould be easy to use..... Enjoy.
 */
class argument_reader{
  
public:
  argument_reader(string  n_name);

  void add_param (string shortname, 
		  string longname, 
		  string description, 
		  int * status, 
		  string * target=NULL, 
		  string  placeholder=string("<string>")
		  );
  
  vector<string> read_args(int argc, char ** args);
 
  void get_help(vector<string> & target);
  vector<string> get_help();

  void add_argument(string placeholder, string description, int * status, string * target);

private:
  class parameter{
  public:
    parameter (string shortname, string longname,string description, int * status, 
	       string * target=NULL, string placeholder=string("<string>"));
    string shortname;
    string longname;
    int * status;
    string * target;    
    string description;
    string placeholder;
  };

  class free_parameter{
  public:
    free_parameter (string placeholder,string description,
		    int * status, string * target);
    int * status;
    string * target;    
    string description;
    string placeholder;
  };

  vector<parameter>arguments;
  vector<free_parameter>free_arguments;

  string progname;
};


#endif