Command_Element.h

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#ifndef RSHELL_COMMAND_ELEMENT_H
#define RSHELL_COMMAND_ELEMENT_H

#include <vector>
#include <string>

#include "Parse.h"

#define EXIT 3 /* The exit code when Command("exit") is parsed and executed */

using namespace std;

class Parse;
class Command_Element {
public:
    virtual int execute() = 0; 
    virtual string str() = 0; 
};
class Command_List : public Command_Element{
protected:
    Command_Element* commands; 
    string input; 
public:
    Command_List(string s);
    int execute(); 
    string str();
};
class Command_Set : public Command_Element{
protected:
    Command_Element* c1; 
    Command_Element* c2; 
    enum connectors{ SEMICOLON, AND, OR } connector; 
public:
    Command_Set(Command_Element* p, Command_Element* q, string c);
    int execute();
    string str();
};
class Command : public Command_Element{
protected:
    vector<string> parameters; 
public:
    Command(string c);
    int execute();
    int file_check();
    int redirect_handler();
    char** to_char_array(vector<string> cmd);
    string str();
};

#endif //RSHELL_COMMAND_ELEMENT_H