import java.io.*;
import java.util.*;

public class Project1a
{
    private String filename = "";
    public Project1a(String fn)
    {
        filename = fn;
    }
    
    public static char[] strToCharArray(String temp)
    {
        char[] array = temp.toCharArray();
        return array;
    }
    
    public static void printCharArray(char[] temp)
    {
        for(int i = 0; i < temp.length; i++)
        {
            System.out.println("Char> " + temp[i]);
        }
    }
    
    
    public static Vector stripeWhiteSpace(char[] temp)
    {
        Vector v = new Vector();
        for(int i = 0; i < temp.length; i++)
        {
            String s = temp[i] + "";
            if(!(s.equalsIgnoreCase(" ")))
            {
                v.add(s);
            }
        }
        return v;
    }
    
    
    //x11 = 3 * 2 + x11 + 2;
    //x11:=3*2+x11+2;
    
    public static boolean isThere(String tempstr)
    {
        String[] operator =
        {"+","-","/","*",">","<",":","="};
        boolean there = false;
        for(int i = 0; i < operator.length; i++)
        {
            if(tempstr.equalsIgnoreCase(operator[i]))
            {
                there = true;
            }
        }
        return there;
    }
    
    public static void parseIt(Vector v)
    {
        //x11 = 3 * 2 + x11 + 2;
        //x11>=3*2+x11+2;
        boolean opFound     = false;
        boolean strFound    = false;
        RealOP rp = new RealOP("C:\\Johnny\\school\\compilers\\relop.txt");
        ID_NUM_Check idnum = new ID_NUM_Check();
        
        String tempstr  = "";
        String tempop   = "";
        
        for(int i = 0; i < v.size(); i++)
        {
            String currstr = (String)v.get(i);
            if(
            currstr.equalsIgnoreCase("+")||currstr.equalsIgnoreCase("-")||currstr.equalsIgnoreCase("*")||
            currstr.equalsIgnoreCase("=")||currstr.equalsIgnoreCase(":")||currstr.equalsIgnoreCase("/")||
            currstr.equalsIgnoreCase("<")||currstr.equalsIgnoreCase(">")
            )
            {
                //System.out.println("Operator: " + currstr);
                opFound     = true;
                strFound    = false;
                tempop      = tempop + currstr;
                
            }
            else
            {
                //System.out.println("String  : " + currstr);
                tempstr     = tempstr + currstr;
                opFound     = false;
                strFound    = true;
            }
            if((!tempstr.equalsIgnoreCase("")) && (opFound))
            {
                String strnum = idnum.whatIsIt(tempstr);
                System.out.println("String  >> " + tempstr + " is a " + strnum);
                tempstr = "";
            }
            if((!tempop.equalsIgnoreCase(""))&& (strFound))
            {
                System.out.print("Operator>> " + tempop + " ");
                rp.findRealOP(tempop);
                tempop = "";
            }
        }//for
        
        if(!(tempstr.equalsIgnoreCase("")))
        {
            System.out.println("Must be a semicolon");
        }
    }
    
    
    public static void main(String args[])
    {
        String fn   = "C:\\Johnny\\school\\compilers\\file.txt";
        Project1a p = new Project1a(fn);
        String line = "";
        int exceed  = 72;
        int i       = 0;
        
        try
        {
            BufferedReader br = new BufferedReader(new FileReader(p.filename));
            while((line = br.readLine()) != null)
            {
                if(line.length() <= 72)
                {
                    System.out.println(i + ") Line> " + line);
                    char[] array = strToCharArray(line);
                    //printCharArray(array);
                    
                    Vector v = stripeWhiteSpace(array);
                    System.out.println(v);
                    parseIt(v);
                }
                else
                {
                    System.out.println("Line Exceeded " + exceed + " characters");
                }
                System.out.println();
                i++;
            }
        }
        catch(IOException e)
        {
            System.out.println("Error: " + e);
        }
        
    }
}