Add second year
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\documentclass[a4paper]{article}
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\input{head}
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\begin{document}
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%-------------------------------
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% TITLE SECTION
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%-------------------------------
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\fancyhead[C]{}
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\hrule \medskip % Upper rule
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\begin{minipage}{0.295\textwidth}
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\raggedright
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\footnotesize
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Andrew Hayes \hfill\\
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21321503 \hfill\\
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a.hayes18@nuigalway.ie
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\end{minipage}
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\begin{minipage}{0.4\textwidth}
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\centering
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\large
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CT255 Assignment 3\\
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\normalsize
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Steganography\\
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\end{minipage}
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\begin{minipage}{0.295\textwidth}
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\today\hfill\\
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\medskip\hrule
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\bigskip
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%-------------------------------
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% CONTENTS
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%-------------------------------
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\section{Problem 1}
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\subsection{Code}
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\begin{lstlisting}[language=Java]
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.regex.Pattern;
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public class Stegano1
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{
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public static void main(String[] args) {
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// Strings to hold the arguments. mode is either A or E for "Add" or "Extract".
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String mode, inputfile, outputfile, bitstring;
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||||
Boolean err = false; // Boolean to tell if the arguments were passed correctly or not
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if (args.length > 1) { // checking that at least one argument was passed to main
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// assigning the mode & inputfile arguments
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mode = args[0];
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inputfile = args[1];
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if (inputfile.equals("")) { // checking that an inputfile was provided (String was not empty)
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err = true;
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}
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else if ((mode.equals("A")) && (args.length > 3)){ // checking if the mode is "Add" & that the number of arguments provided was greater than 3
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// assigning the outputfile & bitstring arguments
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outputfile = args[2];
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bitstring = args[3];
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if (outputfile.equals("") || bitstring.equals("")) { // checking that neither the outputfile nor bitstring were empty strings
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err = true;
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}
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else {
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// hiding the bitstring
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hide(inputfile, outputfile, bitstring);
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}
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}
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else if (mode.equals("E")){ // checking if the mode is "Extract"
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// retrieving (extracting) the bitstring from text
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retrieve(inputfile);
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}
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else {
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err = true;
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}
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}
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else {
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err = true;
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}
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if (err) {
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System.out.println();
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System.out.println("Use: Stegano1 <A:E><Input File><OutputFile><Bitstring>");
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System.out.println("Example to add a bitvector to a file: Stegano1 A inp.txt out.txt 0010101");
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System.out.println("Example to extract a bitvector from a file: Stegano1 E inp.txt");
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}
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}
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// method to hide a bitstring in a copy the input file provided
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static void hide(String inpFile, String outFile, String bitString) {
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BufferedReader reader; // declaring a BufferedReader for the input file
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BufferedWriter writer; // declaring a BufferedWriter for the output file
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try {
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// initialising the reader & writer to FileReaders of their respective files (inpFile & outFile)
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reader = new BufferedReader(new FileReader(inpFile));
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writer = new BufferedWriter(new FileWriter(outFile));
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String line = reader.readLine(); // reading in the first line from the input file
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// will loop until there are no more lines to be read in from the input file (inpFile)
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while (line != null) {
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// if the bitString is not (yet) an empty String
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if (!bitString.equals("")) {
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// if the first bit (char) of the bitString is 0
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if (bitString.charAt(0) == '0') { // note: must use '' instead of "" for char literals
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line = line.concat(" "); // concatenating a space to the end of the line (one space represents a 0)
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}
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// if the first bit of the bitString is 1
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if (bitString.charAt(0) == '1') {
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line = line.concat(" "); // concatenating two spaces to the end of the line (two spaces represents a 1)
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}
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// removing the first bit from the bitString now that it has been used
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bitString = bitString.substring(1, bitString.length()); // replacing bitString with it's substring that goes from the second character to the last character
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}
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// writing the amended line to the output file
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writer.write(line);
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writer.newLine();
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// reading the next line
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line = reader.readLine();
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}
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// closing the reader & the writer
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||||
reader.close();
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||||
writer.close();
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||||
}
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||||
|
||||
// catching any IOExceptions
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||||
catch (IOException e) {
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||||
e.printStackTrace();
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||||
}
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||||
}
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||||
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||||
// method to retrieve a hidden string from the input file provided
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static void retrieve(String inpFile) {
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BufferedReader reader; // declaring a BufferedReader for the input file (inpFile)
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String message = "";
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try {
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reader = new BufferedReader(new FileReader(inpFile)); // initialising the reader to a FileReader of the input file (inpFile)
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||||
String line = reader.readLine(); // reading in the first line from the input file
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||||
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// will loop until there are no more lines to be read in from the input file
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while (line != null) {
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||||
// checking if the line ends in a space using a regular expression
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if (Pattern.matches(".* $", line)) { // (checking if the String line contains any amount of any characters, followed by a space followed by the end of a line)
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||||
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// checking if the line ends in two spaces using a regular expression
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if (Pattern.matches(".* $", line)) { // (checking if the String line contains any amount of any characters, followed by two spaces followed by the end of a line)
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message = message.concat("1"); // concatenating a "1" onto the message String (two spaces represent a "1")
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}
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else { // essentially, this "else" means "if the line ends with one space but not two"
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message = message.concat("0"); // concatenating a "0" onto the message String (one space represents a "0")
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}
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}
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else { // if the String does not end in a space, then there is no (more) message to read
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break;
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}
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// reading the next line
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line = reader.readLine();
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}
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// closing in the reader
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reader.close();
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||||
|
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// checking if the message String is empty so that an error message can be printed if no hidden message was found
|
||||
if (message.equals("")) {
|
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message = "Error: No hidden message found!";
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}
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// printing out the message
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||||
System.out.println(message);
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||||
}
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||||
// catching any IOExceptions
|
||||
catch (IOException e) {
|
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e.printStackTrace();
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}
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}
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}
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\end{lstlisting}
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\subsection{Screenshot of Compilation \& Output}
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\includegraphics[width = 15cm]{output1.png}
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\bigskip
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%------------------------------------------------
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\section{Problem 2}
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\subsection{Code}
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\begin{lstlisting}[language=java]
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
|
||||
import java.io.FileReader;
|
||||
import java.io.FileWriter;
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import java.io.IOException;
|
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import java.util.regex.Pattern;
|
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|
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public class Stegano1
|
||||
{
|
||||
public static void main(String[] args) {
|
||||
// Strings to hold the arguments. mode is either A or E for "Add" or "Extract".
|
||||
String mode, inputfile, outputfile, bitstring;
|
||||
Boolean err = false; // Boolean to tell if the arguments were passed correctly or not
|
||||
|
||||
if (args.length > 1) { // checking that at least one argument was passed to main
|
||||
// assigning the mode & inputfile arguments
|
||||
mode = args[0];
|
||||
inputfile = args[1];
|
||||
|
||||
if (inputfile.equals("")) { // checking that an inputfile was provided (String was not empty)
|
||||
err = true;
|
||||
}
|
||||
else if ((mode.equals("A")) && (args.length > 3)){ // checking if the mode is "Add" & that the number of arguments provided was greater than 3
|
||||
// assigning the outputfile & bitstring arguments
|
||||
outputfile = args[2];
|
||||
bitstring = args[3];
|
||||
|
||||
if (outputfile.equals("") || bitstring.equals("")) { // checking that neither the outputfile nor bitstring were empty strings
|
||||
err = true;
|
||||
}
|
||||
else {
|
||||
// hiding the bitstring
|
||||
hide(inputfile, outputfile, bitstring);
|
||||
}
|
||||
}
|
||||
else if (mode.equals("E")){ // checking if the mode is "Extract"
|
||||
// retrieving (extracting) the bitstring from text
|
||||
retrieve(inputfile);
|
||||
}
|
||||
else {
|
||||
err = true;
|
||||
}
|
||||
}
|
||||
else {
|
||||
err = true;
|
||||
}
|
||||
|
||||
if (err) {
|
||||
System.out.println();
|
||||
System.out.println("Use: Stegano1 <A:E><Input File><OutputFile><Bitstring>");
|
||||
System.out.println("Example to add a bitvector to a file: Stegano1 A inp.txt out.txt 0010101");
|
||||
System.out.println("Example to extract a bitvector from a file: Stegano1 E inp.txt");
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
// method to hide a bitstring in a copy the input file provided
|
||||
static void hide(String inpFile, String outFile, String bitString) {
|
||||
// to encode 2 bits with just one symbol, i'm going to represent the binary digits as an analog represenation of the number it represents plus one
|
||||
// e.g., 00 will be represented as " " (1 space), 01 as " " (2 spaces), 10 as " " (3 spaces), and 11 as " " (4 spaces)
|
||||
// the two bits are treated as a binary number, and then i add one to said binary number to get the number of spaces that will represent that number
|
||||
|
||||
BufferedReader reader; // declaring a BufferedReader for the input file
|
||||
BufferedWriter writer; // declaring a BufferedWriter for the output file
|
||||
|
||||
try {
|
||||
// initialising the reader & writer to FileReaders of their respective files (inpFile & outFile)
|
||||
reader = new BufferedReader(new FileReader(inpFile));
|
||||
writer = new BufferedWriter(new FileWriter(outFile));
|
||||
|
||||
String line = reader.readLine(); // reading in the first line from the input file
|
||||
|
||||
// checking if the number of bits in the bitstring is uneven, and if so, adding a '0' onto the end
|
||||
if (bitString.length() % 2 != 0) { bitString = bitString.concat("0"); }
|
||||
|
||||
// will loop until there are no more lines to be read in from the input file (inpFile)
|
||||
while (line != null) {
|
||||
|
||||
// if the bitString is not (yet) an empty String
|
||||
if (!bitString.equals("")) {
|
||||
|
||||
// if the first 2-bit substring is 00, adding one space to the end of the line
|
||||
if (bitString.substring(0,2).equals("00")) {
|
||||
line = line.concat(" ");
|
||||
}
|
||||
// if the first 2-bit substring is 01, adding two spaces to the end of the line
|
||||
else if (bitString.substring(0,2).equals("01")) {
|
||||
line = line.concat(" ");
|
||||
}
|
||||
// if the first 2-bit substring is 10, adding three spaces to the end of the line
|
||||
else if (bitString.substring(0,2).equals("10")) {
|
||||
line = line.concat(" ");
|
||||
}
|
||||
// if the first 2-bit substring is 11, adding four spaces to the end of the line
|
||||
else if (bitString.substring(0,2).equals("11")) {
|
||||
line = line.concat(" ");
|
||||
}
|
||||
// removing the first two bits from the bitString now that they have been used
|
||||
bitString = bitString.substring(2, bitString.length()); // replacing bitString with it's substring that goes from the third character to the last character
|
||||
}
|
||||
|
||||
// writing the amended line to the output file
|
||||
writer.write(line);
|
||||
writer.newLine();
|
||||
|
||||
// reading the next line
|
||||
line = reader.readLine();
|
||||
}
|
||||
|
||||
// closing the reader & the writer
|
||||
reader.close();
|
||||
writer.close();
|
||||
}
|
||||
|
||||
// catching any IOExceptions
|
||||
catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
// method to retrieve a hidden string from the input file provided
|
||||
static void retrieve(String inpFile) {
|
||||
BufferedReader reader; // declaring a BufferedReader for the input file (inpFile)
|
||||
String message = "";
|
||||
|
||||
try {
|
||||
reader = new BufferedReader(new FileReader(inpFile)); // initialising the reader to a FileReader of the input file (inpFile)
|
||||
|
||||
String line = reader.readLine(); // reading in the first line from the input file
|
||||
|
||||
// will loop until there are no more lines to be read in from the input file
|
||||
while (line != null) {
|
||||
// checking if the line ends in a space using a regular expression
|
||||
if (Pattern.matches(".* $", line)) { // (checking if the String line contains any amount of any characters, followed by a space followed by the end of a line)
|
||||
|
||||
if (Pattern.matches(".* $", line)) { // checking if the line ends in four spaces using a regular expression
|
||||
message = message.concat("11"); // concatenating "11" onto the end of the message String (four spaces represents "11")
|
||||
}
|
||||
else if (Pattern.matches(".* $", line)) { // checking if the line ends in three spaces using a regular expression
|
||||
message = message.concat("10"); // concatenating "10" onto the end of the message String (three spaces represents "10")
|
||||
}
|
||||
else if (Pattern.matches(".* $", line)) { // (checking if the String line contains any amount of any characters, followed by two spaces followed by the end of a line)
|
||||
message = message.concat("01"); // concatenating a "1" onto the message String (two spaces represent a "1")
|
||||
}
|
||||
else { // essentially, this "else" means "if the line ends with one space but not two"
|
||||
message = message.concat("00"); // concatenating a "0" onto the message String (one space represents a "0")
|
||||
}
|
||||
}
|
||||
else { // if the String does not end in a space, then there is no (more) message to read
|
||||
break;
|
||||
}
|
||||
|
||||
// reading the next line
|
||||
line = reader.readLine();
|
||||
}
|
||||
|
||||
// closing in the reader
|
||||
reader.close();
|
||||
|
||||
// checking if the message String is empty so that an error message can be printed if no hidden message was found
|
||||
if (message.equals("")) {
|
||||
message = "Error: No hidden message found!";
|
||||
}
|
||||
|
||||
// printing out the message
|
||||
System.out.println(message);
|
||||
}
|
||||
// catching any IOExceptions
|
||||
catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
}
|
||||
\end{lstlisting}
|
||||
\subsection{Output}
|
||||
\includegraphics[width = 15cm]{output2.png}
|
||||
|
||||
\end{document}
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 25 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 25 KiB |
@ -0,0 +1,165 @@
|
||||
% avm.sty -- for attribute-value matrices -- mar 29, 1992; rev. dec 6, 1993
|
||||
% (c) 1992 christopher manning (manning@csli.stanford.edu) -- see avm.doc.tex
|
||||
|
||||
\newif\ifavmactive\newif\ifavmsorted\newif\ifavmlabeled
|
||||
\newif\ifavmcenter\newif\ifavmbottom
|
||||
\newif\ifavmbottomright\newif\ifavmtopleft\newif\ifavmtopright
|
||||
|
||||
\newdimen\avmdimen
|
||||
\newbox\avmboxone\newbox\avmboxthree
|
||||
|
||||
\def\avmoptions#1{\avmactivefalse\avmsortedfalse\avmlabeledfalse
|
||||
\avmcenterfalse\avmbottomfalse
|
||||
\avmbottomrightfalse\avmtopleftfalse\avmtoprightfalse
|
||||
\def\more{#1}\ifx\more\empty\else\avmjoptions#1,\@nil\fi}
|
||||
\def\avmjoptions#1,#2\@nil{\def\more{#2}\csname avm#1true\endcsname
|
||||
\ifx\more\empty\else\avmjoptions#2\@nil\fi}
|
||||
|
||||
|
||||
\def\avmfont#1{\def\avmjfont{#1}}
|
||||
\def\avmjfont{}
|
||||
|
||||
\def\avmvalfont#1{\def\avmjvalfont{#1}}
|
||||
\def\avmjvalfont{}
|
||||
|
||||
\def\avmsortfont#1{\def\avmjsortfont{#1}}
|
||||
\def\avmjsortfont{}
|
||||
|
||||
\def\avmhskip#1{\def\avmjhskip{#1}}
|
||||
\def\avmjhskip{1em}
|
||||
|
||||
\def\avmbskip#1{\def\avmjbskip{#1}}
|
||||
\def\avmjbskip{0em}
|
||||
|
||||
\def\avmvskip#1{\def\avmjvskip{#1}}
|
||||
\def\avmjvskip{0.385ex}%was .3875
|
||||
|
||||
|
||||
\def\avmjprolog#1{$\mskip-\thinmuskip
|
||||
\left#1\hskip\avmjbskip\vcenter\bgroup\vskip\avmjvskip
|
||||
\ialign\bgroup\avmjfont
|
||||
\strut ##\unskip\hfil
|
||||
&&\hskip\avmjhskip\avmjvalfont ##\unskip\hfil\cr}
|
||||
\def\avmjpostlog#1{\crcr\egroup\vskip\avmjvskip\egroup
|
||||
\hskip\avmjbskip\right#1\mskip-\thinmuskip$\ignorespaces}
|
||||
|
||||
|
||||
\def\avmjcatcode{\let\lparen=(\let\rparen=)\catcode`\[=13\catcode`\]=13
|
||||
\catcode`\<=13\catcode`\@=13\catcode`\(=13\catcode`\)=13
|
||||
\catcode`\>=13\catcode`\|=13}
|
||||
|
||||
{\avmjcatcode % new group: redefine above catcodes as active
|
||||
|
||||
\gdef\specialavm{\avmjcatcode
|
||||
\def({\avmjprolog\lparen}%
|
||||
\def){\avmjpostlog\rparen}%
|
||||
\def<{\avmjprolog\langle}%
|
||||
\def>{\avmjpostlog\rangle}%
|
||||
\ifavmsorted
|
||||
\def[##1{\setbox\avmboxthree=\hbox{\avmjsortfont##1\/}\setbox2=\hbox
|
||||
\bgroup\avmjprolog\lbrack}%
|
||||
\def]{\avmjpostlog\rbrack\egroup\avmjsort}%
|
||||
\else\ifavmlabeled
|
||||
\def[##1{\def\more{##1}\setbox2=\hbox\bgroup\avmjprolog[}%
|
||||
\def]{\avmjpostlog]\egroup\node{\more}{\box2}}%
|
||||
\else
|
||||
\def[{\avmjprolog\lbrack}%
|
||||
\def]{\avmjpostlog\rbrack}%
|
||||
\fi\fi
|
||||
%
|
||||
\def\<{$\langle$}\def\>{$\rangle$}%
|
||||
\def\({\lparen}\def\){\rparen}%
|
||||
\def\[{\lbrack}\def\]{\rbrack}%
|
||||
\def|{$\,\vert\,$}%
|
||||
\def@##1{\avmbox{##1}}%
|
||||
} % end defn of \specialavm
|
||||
} % restore active catcodes
|
||||
|
||||
|
||||
\long\def\avm{\begingroup
|
||||
\ifavmactive\specialavm
|
||||
\else
|
||||
\def\({\avmjprolog(}%
|
||||
\def\){\avmjpostlog)}%
|
||||
\def\<{\avmjprolog\langle}%
|
||||
\def\>{\avmjpostlog\rangle}%
|
||||
%
|
||||
\ifavmsorted
|
||||
\def\[##1{\setbox\avmboxthree=\hbox{\avmjsortfont##1\/}\setbox
|
||||
2=\hbox\bgroup\avmjprolog[}%
|
||||
\def\]{\avmjpostlog]\egroup\avmjsort}%
|
||||
\else\ifavmlabeled
|
||||
\def\[##1{\def\more{##1}\setbox2=\hbox\bgroup\avmjprolog[}%
|
||||
\def\]{\avmjpostlog]\egroup\node{\more}{\box2}}%
|
||||
\else
|
||||
\def\[{\avmjprolog[}%
|
||||
\def\]{\avmjpostlog]}%
|
||||
\fi\fi
|
||||
%
|
||||
\def\|{$\,\vert\,$}%
|
||||
\def\@##1{\avmbox{##1}}%
|
||||
\fi % end not active
|
||||
%
|
||||
\ifx\LaTeX\undefined\def\\{\cr}% running under TeX
|
||||
\else \def\\{\@tabularcr}% Leverage off LaTeX's \\*[dimen] options
|
||||
\fi
|
||||
\def\!{\node}%
|
||||
\long\def\avmjsort{\dimen2=\ht2\advance\dimen2 by -.25\baselineskip
|
||||
\global\dimen\avmdimen=\wd\avmboxthree
|
||||
\ifavmtopleft \raise\dimen2\llap{\box\avmboxthree}\box2%
|
||||
\else\ifavmtopright \box2\raise\dimen2\box\avmboxthree%
|
||||
\else\ifavmbottomright \box2\lower\dimen2\box\avmboxthree%
|
||||
\else \lower\dimen2\llap{\box\avmboxthree}\box2%
|
||||
\fi\fi\fi}%
|
||||
\long\def\sort##1##2{\setbox2=\hbox{##2}\setbox
|
||||
\avmboxthree=\hbox{\avmjsortfont##1\/}\dimen2=\ht2
|
||||
\advance\dimen2 by -.25\baselineskip
|
||||
\ifavmtopleft \raise\dimen2\box\avmboxthree\box2%
|
||||
\else\ifavmtopright \box2\raise\dimen2\box\avmboxthree%
|
||||
\else\ifavmbottomright \box2\lower\dimen2\box\avmboxthree%
|
||||
\else \lower\dimen2\box\avmboxthree\box2%
|
||||
\fi\fi\fi}%
|
||||
\long\def\osort##1##2{\setbox2=\hbox{##2}\setbox
|
||||
\avmboxthree=\hbox{\avmjsortfont ##1\/}\avmjsort}%
|
||||
\def\avml{\avmjprolog.}%
|
||||
\def\avmr{\avmjpostlog.}%
|
||||
\def\avmb##1{\node{##1}{\lbrack\;\rbrack}}%
|
||||
\def\avmd##1{\node{##1}{---}}%
|
||||
\def\q##1{\ifx ##1\{$\lbrace$\else
|
||||
\ifx ##1\}$\rbrace$\else
|
||||
\ifx ##1<$\langle$\else
|
||||
\ifx ##1>$\rangle$\fi \fi \fi \fi}%
|
||||
\def\{{\avmjprolog\lbrace}%
|
||||
\def\}{\avmjpostlog\rbrace}%
|
||||
\def\;{\hskip\avmjhskip}%
|
||||
\def\avmspan##1{\multispan2\strut ##1\expandafter\hfil}%
|
||||
\avmjfont
|
||||
\openup\avmjvskip
|
||||
\setbox\avmboxone=\hbox\bgroup\ignorespaces
|
||||
} % end defn of \avm
|
||||
|
||||
|
||||
\def\endavm{\egroup\ifvmode\leavevmode\fi % this if is useful!
|
||||
\ifavmsorted\null\hskip\dimen\avmdimen\fi
|
||||
\ifavmcenter
|
||||
\box\avmboxone
|
||||
\else \ifavmbottom
|
||||
\lower.575\baselineskip\hbox{\vbox{\box\avmboxone\null}}%
|
||||
\else
|
||||
% the next bit is ripped off from Emma's \evnup in lingmacros.sty
|
||||
\dimen2=\ht\avmboxone\advance\dimen2 by -.725\baselineskip
|
||||
\lower\dimen2\box\avmboxone
|
||||
\fi \fi \endgroup}
|
||||
|
||||
|
||||
% based on TeXbook exercise 21.3
|
||||
\def\avmbox#1{\setbox2=\hbox{$\scriptstyle #1$}\lower.2ex\vbox{\hrule
|
||||
\hbox{\vrule\kern1.25pt
|
||||
\vbox{\kern1.25pt\box2\kern1.25pt}\kern1.25pt\vrule}\hrule}}
|
||||
|
||||
% ============ COSTOM CONFIGURATION =============
|
||||
\avmfont{\sc}
|
||||
\avmoptions{sorted,active}
|
||||
\avmvalfont{\rm}
|
||||
\avmsortfont{\scriptsize\it}
|
||||
% ===============================================
|
||||
@ -0,0 +1,131 @@
|
||||
%% Last Modified: Thu Oct 18 18:26:25 2007.
|
||||
|
||||
\NeedsTeXFormat{LaTeX2e}
|
||||
\ProvidesPackage{style/btree}
|
||||
\typeout{Document Style `weiw_BTree - Support drawing B+-Tree (ver 0.999)}
|
||||
|
||||
\RequirePackage{tikz}
|
||||
\RequirePackage{ifthen}
|
||||
|
||||
% use libraries
|
||||
\usetikzlibrary{arrows,shapes,decorations,matrix}
|
||||
|
||||
|
||||
%% global declaration
|
||||
\tikzstyle{btreeptr} = [draw, semithick, minimum height=2em]
|
||||
\tikzstyle{btreeval} = [draw, semithick, minimum size=2em]
|
||||
\tikzstyle{btreevale} = [draw,semithick, minimum size=2em]
|
||||
\tikzstyle{btlink} = [draw, semithick, ->, >=triangle 45]
|
||||
|
||||
%% macro
|
||||
%% helper macros
|
||||
\newcommand{\suppressemptystr}[1]{% leave blank for entries in leaf nodes
|
||||
\ifthenelse{\equal{#1}{}}%
|
||||
{%
|
||||
\relax%
|
||||
}%
|
||||
% Else
|
||||
{%
|
||||
#1\textsuperscript{*}%
|
||||
}%
|
||||
}%
|
||||
|
||||
\newcommand{\xyshift}[3]{% help to place the nodes
|
||||
\begin{scope}[xshift=#1, yshift=#2]
|
||||
#3
|
||||
\end{scope}%
|
||||
}
|
||||
|
||||
%% Common btree macros
|
||||
\newcommand{\btreelink}[2]{% #1: src node; #2: dest node;
|
||||
\draw[btlink] ([yshift=3pt] #1.south) -- (#2-b.north);
|
||||
}
|
||||
|
||||
\newcommand{\btreelinknorth}[2]{% #1: src node; #2: dest node;
|
||||
\draw[btlink] ([yshift=3pt] #1.south) -- (#2.north);
|
||||
}
|
||||
|
||||
\newcommand{\btreetriangle}[2]{% #1: node name; #2 text inside
|
||||
\node[anchor=north, regular polygon, regular polygon sides=3, draw] (#1) {#2};
|
||||
}
|
||||
|
||||
%%======================================================================
|
||||
%% btree with capacity = 4
|
||||
\newcommand{\btreeinodefour}[5]{%
|
||||
\matrix [ampersand replacement=\&] (#1)
|
||||
{
|
||||
\node[btreeptr] (#1-1) {\vphantom{1}}; \& \node[btreeval] (#1-a) {#2}; \&
|
||||
\node[btreeptr] (#1-2) {\vphantom{1}}; \& \node[btreeval] (#1-b) {#3}; \&
|
||||
\node[btreeptr] (#1-3) {\vphantom{1}}; \& \node[btreeval] (#1-c) {#4}; \&
|
||||
\node[btreeptr] (#1-4) {\vphantom{1}}; \& \node[btreeval] (#1-d) {#5}; \&
|
||||
\node[btreeptr] (#1-5) {\vphantom{1}}; \\
|
||||
};
|
||||
}
|
||||
\newcommand{\btreelnodefour}[5]{%
|
||||
\matrix [ampersand replacement=\&, outer sep=0pt, matrix anchor=north] (#1)
|
||||
{
|
||||
\node[btreevale] (#1-a) {\suppressemptystr{#2}}; \&
|
||||
\node[btreevale] (#1-b) {\suppressemptystr{#3}}; \&
|
||||
\node[btreevale] (#1-c) {\suppressemptystr{#4}}; \&
|
||||
\node[btreevale] (#1-d) {\suppressemptystr{#5}}; \\
|
||||
};
|
||||
}
|
||||
|
||||
%%======================================================================
|
||||
%% btree with capacity = 3
|
||||
\newcommand{\btreeinodethree}[4]{%
|
||||
\matrix [ampersand replacement=\&] (#1)
|
||||
{
|
||||
\node[btreeptr] (#1-1) {\vphantom{1}}; \& \node[btreeval] (#1-a) {#2}; \&
|
||||
\node[btreeptr] (#1-2) {\vphantom{1}}; \& \node[btreeval] (#1-b) {#3}; \&
|
||||
\node[btreeptr] (#1-3) {\vphantom{1}}; \& \node[btreeval] (#1-c) {#4}; \&
|
||||
\node[btreeptr] (#1-4) {\vphantom{1}}; \\
|
||||
};
|
||||
}
|
||||
\newcommand{\btreelnodethree}[4]{%
|
||||
\matrix [ampersand replacement=\&, outer sep=0pt, matrix anchor=north] (#1)
|
||||
{
|
||||
\node[btreevale] (#1-a) {\suppressemptystr{#2}}; \&
|
||||
\node[btreevale] (#1-b) {\suppressemptystr{#3}}; \&
|
||||
\node[btreevale] (#1-c) {\suppressemptystr{#4}}; \\
|
||||
};
|
||||
}
|
||||
|
||||
%%======================================================================
|
||||
%% btree with capacity = 2
|
||||
\newcommand{\btreeinodetwo}[4]{%
|
||||
\matrix [ampersand replacement=\&] (#1)
|
||||
{
|
||||
\node[btreeptr] (#1-1) {\vphantom{1}}; \& \node[btreeval] (#1-a) {#2}; \&
|
||||
\node[btreeptr] (#1-2) {\vphantom{1}}; \& \node[btreeval] (#1-b) {#3}; \&
|
||||
\node[btreeptr] (#1-3) {\vphantom{1}}; \\
|
||||
};
|
||||
}
|
||||
\newcommand{\btreelnodetwo}[3]{%
|
||||
\matrix [ampersand replacement=\&, outer sep=0pt, matrix anchor=north] (#1)
|
||||
{
|
||||
\node[btreevale] (#1-a) {\suppressemptystr{#2}}; \&
|
||||
\node[btreevale] (#1-b) {\suppressemptystr{#3}}; \\
|
||||
};
|
||||
}
|
||||
%%======================================================================
|
||||
|
||||
|
||||
|
||||
|
||||
%% simple example
|
||||
% \begin{center}
|
||||
% \scalebox{0.7}{
|
||||
% \begin{tikzpicture}
|
||||
% %
|
||||
% \btreeinodefour{root}{13}{17}{24}{30};
|
||||
% \xyshift{-40mm}{-20mm}{\btreelnodefour{n1}{2}{3}{5}{7}}
|
||||
% \xyshift{-0mm}{-20mm}{\btreelnodefour{n2}{14}{16}{}{}}
|
||||
% \xyshift{40mm}{-20mm}{\btreelnodefour{n3}{19}{20}{22}{}}
|
||||
% \xyshift{80mm}{-20mm}{\btreelnodefour{n4}{24}{27}{29}{}}
|
||||
% \xyshift{120mm}{-20mm}{\btreelnodefour{n5}{33}{34}{38}{39}}
|
||||
% %
|
||||
% \foreach \x in {1,2,...,5} { \btreelink{root-\x}{n\x} }
|
||||
% \end{tikzpicture}
|
||||
% }
|
||||
% \end{center}
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 66 KiB |
@ -0,0 +1,38 @@
|
||||
% Source: ss17_wissschreib (Eva)
|
||||
|
||||
\lstset{
|
||||
basicstyle=\ttfamily\scriptsize\mdseries,
|
||||
keywordstyle=\bfseries\color[rgb]{0.171875, 0.242188, 0.3125},
|
||||
identifierstyle=,
|
||||
commentstyle=\color[rgb]{0.257813, 0.15625, 0},
|
||||
stringstyle=\itshape\color[rgb]{0.0195313, 0.195313, 0.0117188},
|
||||
numbers=left,
|
||||
numberstyle=\tiny,
|
||||
stepnumber=1,
|
||||
breaklines=true,
|
||||
frame=none,
|
||||
showstringspaces=false,
|
||||
tabsize=4,
|
||||
backgroundcolor=\color[rgb]{0.98,0.98,0.98},
|
||||
captionpos=b,
|
||||
float=htbp,
|
||||
language=Python,
|
||||
xleftmargin=15pt,
|
||||
xrightmargin=15pt
|
||||
}
|
||||
|
||||
%(deutsche) Sonderzeichen
|
||||
\lstset{literate=%
|
||||
{Ä}{{\"A}}1
|
||||
{Ö}{{\"O}}1
|
||||
{Ü}{{\"U}}1
|
||||
{ä}{{\"a}}1
|
||||
{ö}{{\"o}}1
|
||||
{ü}{{\"u}}1
|
||||
{ß}{{\ss}}1
|
||||
}
|
||||
|
||||
%Verwendung im Text:
|
||||
%-> \begin{lstlisting}[language=Python,firstnumber=27] ... \end{lstlisting}
|
||||
%-> \begin{lstlisting}[language=Python,numbers=none] ... \end{lstlisting}
|
||||
%-> \lstinline[language=JAVA]{...}
|
||||
Reference in New Issue
Block a user