genie::CmdLnArgParser Class Reference

Command line argument parser. More...

#include <CmdLnArgParser.h>

Public Member Functions
	CmdLnArgParser (int argc, char **argv)
	~CmdLnArgParser ()
bool	OptionExists (char opt)
	was option set? More...
char *	Arg (char opt)
	return argument following -`opt' More...
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)
bool	OptionExists (string opt)
	was option set? More...
char *	Arg (string opt)
	return argument following –`opt' More...
string	ArgAsString (string opt)
double	ArgAsDouble (string opt)
int	ArgAsInt (string opt)
long	ArgAsLong (string opt)

Private Attributes
int	fArgc
char **	fArgv

Detailed Description

Command line argument parser.

Author

Costas Andreopoulos <c.andreopoulos cern.ch> University of Liverpool

Created:

July 23, 2010

License:

Copyright (c) 2003-2024, The GENIE Collaboration For the full text of the license visit http://copyright.genie-mc.org

Definition at line 29 of file CmdLnArgParser.h.

Constructor & Destructor Documentation

CmdLnArgParser::CmdLnArgParser	(	int	argc,
		char **	argv
	)

Definition at line 22 of file CmdLnArgParser.cxx.

                                                    :
fArgc(argc),
fArgv(argv)
{

}

CmdLnArgParser::~CmdLnArgParser

(

)

Definition at line 29 of file CmdLnArgParser.cxx.

{

}

Member Function Documentation

char * CmdLnArgParser::Arg

(

char

opt

)

return argument following -`opt'

Definition at line 34 of file CmdLnArgParser.cxx.

References fArgc, fArgv, LOG, pDEBUG, and pINFO.

Referenced by ArgAsDouble(), ArgAsInt(), ArgAsLong(), ArgAsString(), and main().

{
  const int buf_size = 2048*128;

  bool set = false;
  char *  argument  = new char[buf_size];
  strcpy(argument, "");

  int     argc      = fArgc;
  char ** argv      = fArgv;

  while(argc>2)
  {
    LOG("CLAP", pDEBUG) << "Getting next argument in argument-list";
    LOG("CLAP", pDEBUG) << "Current argc = " << argc;

    if (argv[1][0] == '-') {
      LOG("CLAP", pDEBUG)
       << "Got char (argv[1][1]) following argv[1][0]='-' : " << argv[1][1];

      if (argv[1][1] == op) {
         LOG("CLAP", pDEBUG) << "Input option: " << op << " was matched";

         if (strlen(&argv[1][2]) ) {
            strcpy(argument,&argv[1][2]);
            LOG("CLAP", pINFO)
               << "Set opt = [" << op << "] to val = [" << argument << "]";

         } else if( (argc>2) &&
                    !(argv[2][0]=='-' && isalpha(argv[2][1])) ) {

            LOG("CLAP", pDEBUG)
              << "argc>2 and next arg not a '-' followed by an alpha char";

            argc--;
            argv++;
            strcpy(argument,&argv[1][0]);
            set = true;
            LOG("CLAP", pINFO)
               << "Set opt = [" << op << "] to val = [" << argument << "]";
         }
      }
    }
    argc--;
    argv++;
    if(argc>2) {
      LOG("CLAP", pDEBUG) << "Next argv[1][0] = " << argv[1][0];
    }
  }

  LOG("CLAP", pDEBUG) << "CmdLnArgParser::Arg op='" << op << "' set=" << set;
  return argument;
}

char * CmdLnArgParser::Arg

(

string

opt

)

return argument following –`opt'

Definition at line 186 of file CmdLnArgParser.cxx.

References fArgc, fArgv, LOG, pDEBUG, and pINFO.

{
  const int buf_size = 2048*128;
  char *  argument   = new char[buf_size];
  strcpy(argument, "");

  int     argc      = fArgc;
  char ** argv      = fArgv;

  while(argc>2)
  {
    LOG("CLAP", pDEBUG) << "Getting next argument in argument-list";
    LOG("CLAP", pDEBUG) << "Current argc = " << argc;

    if (argv[1][0] == '-' && argv[1][1] == '-') {
      //char * op_cur = strndup(argv[1]+2,strlen(argv[1]));
      char op_cur[buf_size];
      strcpy(op_cur,&argv[1][2]);
      LOG("CLAP", pDEBUG)
        << "Got string following '--' : " << op_cur;
      if (strcmp(op.c_str(),op_cur)==0) {
         LOG("CLAP", pDEBUG) << "Input option: " << op << " was matched";

         if (strlen(&argv[2][0]) ) {
            strcpy(argument,&argv[2][0]);
            LOG("CLAP", pINFO)
               << "Set opt = [" << op << "] to val = [" << argument << "]";

         } else if( (argc>2) &&
                    !(argv[2][0]=='-' &&argv[2][1]=='-' && isalpha(argv[2][2])) ) {
            LOG("CLAP", pDEBUG)
              << "argc>2 and next arg not a '--' followed by an alpha char";

            argc--;
            argv++;
            strcpy(argument,&argv[1][0]);
            LOG("CLAP", pINFO)
               << "Set opt = [" << op << "] to val = [" << argument << "]";
         }
      }
    }
    argc--;
    argv++;
    if(argc>2) {
      LOG("CLAP", pDEBUG) << "Next argv[1][0] = " << argv[1][0];
    }
  }

  return argument;
}

double CmdLnArgParser::ArgAsDouble

(

char

opt

)

Definition at line 123 of file CmdLnArgParser.cxx.

References Arg().

Referenced by GetCommandLineArgs(), and main().

{
  char * argument = this->Arg(op);
  double value = atof(argument);
  delete [] argument;

  return value;
}

double CmdLnArgParser::ArgAsDouble

(

string

opt

)

Definition at line 268 of file CmdLnArgParser.cxx.

References Arg().

{
  char * argument = this->Arg(op);
  double value = atof(argument);
  delete [] argument;

  return value;
}

vector< double > CmdLnArgParser::ArgAsDoubleTokens	(	char	opt,
		string	delimeter
	)

Definition at line 132 of file CmdLnArgParser.cxx.

References ArgAsStringTokens().

{
  vector<string> strtokens = this->ArgAsStringTokens(op, delimeter);
  vector<double> tokens;
  vector<string>::const_iterator iter = strtokens.begin();
  for( ; iter != strtokens.end(); ++iter) {
    string arg = *iter;
    tokens.push_back(atof(arg.c_str()));
  }
  return tokens;
}

int CmdLnArgParser::ArgAsInt

(

char

opt

)

Definition at line 144 of file CmdLnArgParser.cxx.

References Arg().

Referenced by DecodeCommandLine(), GetCommandLineArgs(), and genie::RunOpt::ReadFromCommandLine().

{
  char * argument = this->Arg(op);
  int value = atoi(argument);
  delete [] argument;

  return value;
}

int CmdLnArgParser::ArgAsInt

(

string

opt

)

Definition at line 277 of file CmdLnArgParser.cxx.

References Arg().

{
  char * argument = this->Arg(op);
  int value = atoi(argument);
  delete [] argument;

  return value;
}

vector< int > CmdLnArgParser::ArgAsIntTokens	(	char	opt,
		string	delimeter
	)

Definition at line 153 of file CmdLnArgParser.cxx.

References ArgAsStringTokens().

{
  vector<string> strtokens = this->ArgAsStringTokens(op, delimeter);
  vector<int> tokens;
  vector<string>::const_iterator iter = strtokens.begin();
  for( ; iter != strtokens.end(); ++iter) {
    string arg = *iter;
    tokens.push_back(atoi(arg.c_str()));
  }
  return tokens;
}

long CmdLnArgParser::ArgAsLong

(

char

opt

)

Definition at line 165 of file CmdLnArgParser.cxx.

References Arg().

Referenced by GetCommandLineArgs(), and main().

{
  char * argument = this->Arg(op);
  long value = atol(argument);
  delete [] argument;

  return value;
}

long CmdLnArgParser::ArgAsLong

(

string

opt

)

Definition at line 286 of file CmdLnArgParser.cxx.

References Arg().

{
  char * argument = this->Arg(op);
  long value = atol(argument);
  delete [] argument;

  return value;
}

vector< long > CmdLnArgParser::ArgAsLongTokens	(	char	opt,
		string	delimeter
	)

Definition at line 174 of file CmdLnArgParser.cxx.

References ArgAsStringTokens().

{
  vector<string> strtokens = this->ArgAsStringTokens(op, delimeter);
  vector<long> tokens;
  vector<string>::const_iterator iter = strtokens.begin();
  for( ; iter != strtokens.end(); ++iter) {
    string arg = *iter;
    tokens.push_back(atol(arg.c_str()));
  }
  return tokens;
}

string CmdLnArgParser::ArgAsString

(

char

opt

)

Definition at line 106 of file CmdLnArgParser.cxx.

References Arg().

Referenced by ArgAsStringTokens(), DecodeCommandLine(), GetCommandLineArgs(), main(), and genie::RunOpt::ReadFromCommandLine().

{
  char * argument = this->Arg(op);
  string value = string(argument);
  delete [] argument;

  return value;
}

string CmdLnArgParser::ArgAsString

(

string

opt

)

Definition at line 259 of file CmdLnArgParser.cxx.

References Arg().

{
  char * argument = this->Arg(op);
  string value = string(argument);
  delete [] argument;

  return value;
}

vector< string > CmdLnArgParser::ArgAsStringTokens	(	char	opt,
		string	delimeter
	)

Definition at line 115 of file CmdLnArgParser.cxx.

References ArgAsString(), and genie::utils::str::Split().

Referenced by ArgAsDoubleTokens(), ArgAsIntTokens(), ArgAsLongTokens(), and main().

{
  string argument = this->ArgAsString(op);

  vector<string> tokens = str::Split(argument, delimeter);
  return tokens;
}

bool CmdLnArgParser::OptionExists

(

char

opt

)

was option set?

Definition at line 88 of file CmdLnArgParser.cxx.

References fArgc, and fArgv.

Referenced by DecodeCommandLine(), GetCommandLineArgs(), main(), and genie::RunOpt::ReadFromCommandLine().

{
  bool set = false;

  int     argc = fArgc;
  char ** argv = fArgv;

  while(argc>1) {
    if(argv[1][0] == '-') {
      if (argv[1][1] == op) set = true;
    }
    argc--;
    argv++;
  }

  return set;
}

bool CmdLnArgParser::OptionExists

(

string

opt

)

was option set?

Definition at line 237 of file CmdLnArgParser.cxx.

References fArgc, and fArgv.

{
  const int buf_size = 2048*128;
  bool set = false;

  int     argc = fArgc;
  char ** argv = fArgv;

  while(argc>1) {
    if(argv[1][0] == '-' && argv[1][1] == '-') {
        //char * op_cur =  strndup(argv[1]+2,strlen(argv[1]));
        char op_cur[buf_size];
        strcpy(op_cur,&argv[1][2]);
        if (strcmp(op.c_str(),op_cur)==0) set = true;
    }
    argc--;
    argv++;
  }

  return set;
}

Member Data Documentation

int genie::CmdLnArgParser::fArgc

private

Definition at line 62 of file CmdLnArgParser.h.

Referenced by Arg(), and OptionExists().

char** genie::CmdLnArgParser::fArgv

private

Definition at line 63 of file CmdLnArgParser.h.

Referenced by Arg(), and OptionExists().

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The documentation for this class was generated from the following files:

• CmdLnArgParser.h
• CmdLnArgParser.cxx