if (command=="dothis"){
     dothis(parameter[0],parameter[1])
}

#include <iostream>
#include <sstream>
#include <math.h>
using namespace std;
const string cmd_create="create";
const string cmd_exit="exit";

int main(){
    bool run=1;
    string input;
    int numparameters;
    
    //in-game command line loop
    do{
    string * parameter;
    string * command;
    command = new string;
    //get input from user
    getline(cin,input);
    //display what the user entered;
    cout << input << endl;
    //turn the input into a stream
    stringstream inputstream(input);
    //take the first part of input and turn it into the command variable
    inputstream >> *command;
    // set the number of parameters based on the command
    if (*command==cmd_create){numparameters=1;}
    else {numparameters=1;}
    
    //take the rest of input and turn it into parameters
    parameter = new string[numparameters];
    for(int count=0;count<numparameters;count++){
         inputstream >> parameter[count];}

    //display the command the parameters to be used
    cout << "Command: " << *command << endl;
    for(int count=0;count<numparameters;count++){
         cout << "Parameter[" << count << "]: " << parameter[count] << endl;}
         
    //execute commands using parameters
    if (*command==cmd_create){
         cout << "Creating " << parameter[0] << "..." << endl;
         cout << parameter[0] << " created!" << endl;}
    if (*command==cmd_exit){
         cout << "Exiting program..." << endl;run=0;}
    delete command;
    delete []parameter;
    }while(run==1);
    return 0;
}

#include <iostream>
#include <iomanip>
#include <string>
#include <vector>
#include <map>

using namespace std;

typedef vector<string> argv;  // command/parameters
typedef void (*fn)(argv&);    // a function
typedef map<string,fn> table; // a lookup table

// all the functions take the same args
void fnCreate ( argv &args ) {
  cout << "Hello from fnCreate " << args[0] << endl;
}
void fnEdit ( argv &args ) {
  cout << "Hello from fnEdit " << args[0] << endl;
}

int main() {
  table commands;

  // the lookup table of command names
  // and handler functions
  commands["create"] = fnCreate;
  commands["edit"] = fnEdit;

  // create a command
  argv  args1;
  args1.push_back("create");
  args1.push_back("file");

  // the big magic lookup :)
  // actually, test the command exists before trying to call it
  commands[args1[0]]( args1 );

  return 0;
}

if (input==args1[0])  commands[args1[0]]( args1 );

table commands;
commands["command"]=fnCommand;
commands["exit"]=fnExit;
argv args1;
args1.push_back("exit");
args1.push_back("command");
string input;
argv arg2;
bool run=1;
do{
getline(cin,input);
//convert input into args2 like i explained above
for(int count=0;count<args1.size();count++){
   if(args2[0]==args1[count]){commands[args2[0]](args2);}
   if(args2[0]==args1[0]){run=0;}}
}while(run);

#include <iostream>
#include <iomanip>
#include <string>
#include <sstream>
#include <vector>
#include <map>

using namespace std;

typedef vector<string> argv;  // command/parameters
typedef void (*fn)(argv&);    // a function
typedef map<string,fn> table; // a lookup table


// all the functions take the same args
//declare functions here
void fnCreate ( argv &args );
void fnMove ( argv &args );
void fnExit ( argv &args );

int main() {
  bool run=1;
  string input;
  table commands;
  commands["create"] = fnCreate;  // the lookup table of command names
  commands["move"] = fnMove;  // and handler functions
  commands["exit"] = fnExit;
  argv  args1;//arguments vector
  do{//command line loop
  getline(cin,input);
  stringstream inputstream(input);
  do{//convert input string into argument strings
     args1.push_back("");
     inputstream >> args1.back();
   }while(inputstream);
  if (commands[args1.front()]){
  commands[args1.front()]( args1 ); //run command
  if (args1.front()=="exit"){run=0;}}
  else {cout << "No such command: " << args1.front() << endl;}
  args1.clear();
  }while(run);

  return 0;
}