108 lines
3.3 KiB
Java
108 lines
3.3 KiB
Java
package de.vanitasvitae.enigmandroid.enigma.util;
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/**
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* Used to create wiring arrays from strings
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* Use strings like "E K M F L G D Q V Z N T O W Y H X U S P A I B R C J" as input
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* Copyright (C) 2015 Paul Schaub
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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* @author vanitasvitae
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*/
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public class RotorMaker
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{
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public static final int l = 26;
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public static void main(String[] args)
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{
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if(args.length == l) makeRotor(args);
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else if(args.length == 1) makeRotor(prepare(args[0]));
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else System.out.println("wrong input format!");
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}
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public static void makeRotor(String input)
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{
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makeRotor(prepare(input));
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}
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/**
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* Prepare the string (add spaces)
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* @param in input string
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* @return prepared string
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*/
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public static String[] prepare(String in)
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{
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String[] out = new String[l];
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int pos = 0;
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for(char x : in.toCharArray())
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{
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if(x != ' ')
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{
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try
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{
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out[pos] = ""+x;
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}
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catch (ArrayIndexOutOfBoundsException e)
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{
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System.out.println("String too long!");
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return null;
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}
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pos++;
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}
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}
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if(pos!=l)
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{
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System.out.println("String too short!");
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return null;
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}
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return out;
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}
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/**
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* Generate Array initializer for the given rotor configuration
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* @param input String describing the rotor
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*/
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public static void makeRotor(String[] input)
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{
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if(input.length != l) System.out.println("Wrong length! Input must have length "+l+"!");
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else
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{
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Integer[] out1 = new Integer[l];
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for(int i=0; i<l; i++)
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{
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String x = input[i].toUpperCase();
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char xc = x.charAt(0);
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int xint = (int) xc;
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xint = xint - 65;
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out1[i] = xint;
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}
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Integer[] out2 = new Integer[l];
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for(int i=0; i<l; i++)
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{
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out2[out1[i]] = i;
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}
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String output1 = "{";
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String output2 = "{";
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for(int i=0; i<l; i++)
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{
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output1 = output1 + out1[i]+",";
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output2 = output2 + out2[i]+",";
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}
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output1 = output1.substring(0,output1.length()-1) + "}";
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output2 = output2.substring(0,output2.length()-1) + "}";
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System.out.println("connections :" + output1);
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System.out.println("revConnects :" + output2);
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}
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}
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}
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