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#include <string>
#include <iostream>
#include <cstdlib>
#include <string.h>
#include <fstream>
#include <stdio.h>
using namespace std;
int main(int argc, char *argv[])
{
// If no extra file is provided then exit the program with error message
if (argc <= 1)
{
cout << "Correct Usage: " << argv[0] << " <Filename>" << endl;
exit (1);
}
// Array to hold the registers and initialize them all to zero
int registers [] = {0,0,0,0,0,0,0,0};
string memory [16000];
string Symtablelab[1000];
int Symtablepos[1000];
char line[100];
char label [9];
char opcode[9];
char arg1[256];
char arg2[256];
char* pch;
// Open the file that was input on the command line
ifstream myFile;
myFile.open(argv[1]);
if (!myFile.is_open())
{
cerr << "Cannot open the file." << endl;
}
int counter = 0;
int i = 0;
int j = 0;
while (myFile.good())
{
myFile.getline(line, 100, '\n');
// If the line begins with a #, then just get the next line
if (line[0] == '#')
{
continue;
}
// If there is a label, then this code will run
if ( line[0] != '\t' && line[0]!=' ')
{
if( pch = strtok(line," \t"))
{
strcpy(label,pch);
Symtablelab[i] = (string)label;
}
if (pch = strtok(NULL, " \t"))
{
strcpy(opcode,pch);
if (opcode != "WORDS" && opcode != "INT")
{
counter += 3;
}
else if (opcode == "INT")
counter ++;
}
if (pch = strtok(NULL, " \t,"))
{
strcpy(arg1,pch);
if (opcode == "WORDS")
{
int j = atoi(arg1);
counter += j;
}
}
if (pch = strtok(NULL, ","))
{
strcpy(arg2, pch);
}
Symtablepos[i] = counter;
}
if (line[0] == '\t' || line[0] == ' ')
{
if (pch = strtok(line, " \t"))
{
strcpy(opcode,pch);
if (opcode != "WORDS" && opcode != "INT")
{
counter += 3;
}
else if (opcode == "INT")
counter++;
}
if (pch = strtok(NULL, " \t,"))
{
strcpy(arg1,pch);
if (opcode == "WORDS")
{
j = atoi(arg1);
counter += j;
}
}
if (pch = strtok(NULL, ","))
{
strcpy(arg2,pch);
}
}
i++;
}
for (int x = 0; x <= i; x++)
{
cout << Symtablelab[i] << ' ' << Symtablepos[i] << endl;
}
return 0;
}
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