/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * This file is part of J102.                                      *
 * See the file "J102-LICENSE" for Copyright information and the   *
 * terms and conditions for copying, distribution and              *
 * modification of J102.                                           *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

package org.sablecc.java;


public class UnicodeLetter 
{
    public static void main(String[] arguments) 
    {
        int begin = 0;
        int end = 0;
        boolean letter = false;

        for(int c = 0; c <= 65535; c++)
        {
            if(letter)
            {
                if(!isLetter(c))
                {
                    letter = false;
                    print(begin, end);
                }
                else
                {
                    end = c;
                }
            }
            else
            {
                if(isLetter(c))
                {
                    letter = true;
                    begin = end = c;
                }
            }
        }

        if(letter)
        {
            print(begin, end);
        }

        System.out.println();
    }

    private static boolean isLetter(int i)
    {
        char c = (char) i;

        return Character.isLetter(c);
    }

    private static byte counter = 0;

    private static void print(int begin, int end)
    {
        if(counter == 0)
        {
            System.out.print("\t\t");
        }

        System.out.print("[0x" + hex(begin) + "..0x" + hex(end) + "] |");

        if(counter++ == 3)
        {
            System.out.println();
            counter = 0;
        }
        else
        {
            System.out.print(" ");
        }
    }

    private static String hex(int i)
    {
        String s = Integer.toHexString(i);
        for(int len = s.length(); len < 4; len++)
        {
            s = "0" + s;
        }

        return s;
    }
}