main.cpp

/* Programming Assignment 3
 *
 * main.cpp
 *
 * CS280 - Spring 2024
 * parser and interpreter testing program
 */

#include <iostream>
#include <fstream>
#include "parser.cpp"

using namespace std;

int main(int argc, char *argv[])
{
    int lineNumber = 1;

    istream *in = NULL;
    ifstream file;

    for( int i=1; i<argc; i++ )
    {
        string arg = argv[i];

        if( in != NULL )
        {
            cerr << "ONLY ONE FILE NAME ALLOWED" << endl;
            return 0;
        }
        else
        {
            file.open(arg.c_str());
            if( file.is_open() == false )
            {
                cerr << "CANNOT OPEN " << arg << endl;
                return 0;
            }

            in = &file;
        }
    }
    if(argc == 1)
    {
        cerr << "Missing File Name." << endl;
        return 0;
    }

    bool status = Prog(*in, lineNumber);

    if( !status ){
        cout << "\nUnsuccessful Interpretation " << endl << "Number of Errors " << ErrCount()  << endl;
    }
    else{
        cout << "\nSuccessful Execution" << endl;
    }
}