/* 
 * TabStop
 *     Reads a tab-stop line, then aligns subsequent input lines
 *     with the tab stops.
 *     
 * Parke Godfrey  2009-11-12
 */
import java.io.PrintStream;
import java.util.Scanner;

public class TabStop
{
    public static void main(String[] args)
    {
        PrintStream output = System.out;
        Scanner input = new Scanner(System.in);
        
        output.println("Enter tab mark line:");
        String tabMarks = input.nextLine();
        
        String rows = ""; // To accumulate the tab-aligned output rows.
        output.println("Enter row:");
        while (input.hasNext())
        {   
            int start = 0; // Position of the first tab stop ('x').
            int end;       // Position of the next tab (or final) stop.
            while (start < tabMarks.length() - 1) 
            {
                end = tabMarks.indexOf("x", start + 1);
                // (end -start) is the space from this tab stop to the next.
                rows += String.format("%-" + (end - start)
                                        + "." + (end - start) + "s",
                                      input.next());
                start = end;
            }
            rows += "\n";
            
            output.println("Enter row:");
        }
        
        output.println(tabMarks);
        output.print(rows);
    }
}