CmdLnArgParser.h

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//____________________________________________________________________________
/*!
 
\class      genie::CmdLnArgParser
 
\brief      Command line argument parser
 
\author     Costas Andreopoulos <c.andreopoulos \at cern.ch>
            University of Liverpool
 
\created    July 23, 2010
 
\cpright    Copyright (c) 2003-2025, The GENIE Collaboration
            For the full text of the license visit http://copyright.genie-mc.org            
*/
//____________________________________________________________________________
 
#ifndef _CMD_LINE_ARG_PARSER_H_
#define _CMD_LINE_ARG_PARSER_H_
 
#include <string>
#include <vector>
 
using std::string;
using std::vector;
 
namespace genie {
 
class CmdLnArgParser {
 
public:
  CmdLnArgParser(int argc, char **argv);
 ~CmdLnArgParser();
 
  // Methods to check the existence of single character switches (eg -f, -s)
  // and retrieve the command-line argument following the switch
 
  bool    OptionExists (char opt);   ///< was option set?
  char *  Arg          (char opt);   ///< return argument following -`opt'
 
  string         ArgAsString       (char opt);
  vector<string> ArgAsStringTokens (char opt, string delimeter);
  double         ArgAsDouble       (char opt);
  vector<double> ArgAsDoubleTokens (char opt, string delimeter);
  int            ArgAsInt          (char opt);
  vector<int>    ArgAsIntTokens    (char opt, string delimeter);
  long           ArgAsLong         (char opt);
  vector<long>   ArgAsLongTokens   (char opt, string delimeter);
 
  // As above, but supporting multi-character switches (eg --with-x-file )
 
  bool    OptionExists (string opt); ///< was option set?
  char *  Arg          (string opt); ///< return argument following --`opt'
 
  string         ArgAsString       (string opt);
  double         ArgAsDouble       (string opt);
  int            ArgAsInt          (string opt);
  long           ArgAsLong         (string opt);
 
private:
 
  int    fArgc;
  char **fArgv;
 
};
 
}      // genie namespace
 
#endif // _CMD_LINE_ARG_PARSER_H_