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PDF renderer implementation supporting the subset of PDF 1.4 specification.
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/*
* $Id: HexDump.java,v 1.3 2009/01/16 16:26:12 tomoke Exp $
*
* Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.sun.pdfview;
import java.io.IOException;
import java.io.RandomAccessFile;
public class HexDump {
public static void printData(byte[] data) {
char[] parts = new char[17];
int partsloc = 0;
for (int i = 0; i < data.length; i++) {
int d = ((int) data[i]) & 0xff;
if (d == 0) {
parts[partsloc++] = '.';
} else if (d < 32 || d >= 127) {
parts[partsloc++] = '?';
} else {
parts[partsloc++] = (char) d;
}
if (i % 16 == 0) {
int start = Integer.toHexString(data.length).length();
int end = Integer.toHexString(i).length();
for (int j = start; j > end; j--) {
System.out.print("0");
}
System.out.print(Integer.toHexString(i) + ": ");
}
if (d < 16) {
System.out.print("0" + Integer.toHexString(d));
} else {
System.out.print(Integer.toHexString(d));
}
if ((i & 15) == 15 || i == data.length - 1) {
System.out.println(" " + new String(parts));
partsloc = 0;
} else if ((i & 7) == 7) {
System.out.print(" ");
parts[partsloc++] = ' ';
} else if ((i & 1) == 1) {
System.out.print(" ");
}
}
System.out.println();
}
public static void main(String args[]) {
if (args.length != 1) {
System.out.println("Usage: ");
System.out.println(" HexDump ");
System.exit(-1);
}
try {
RandomAccessFile raf = new RandomAccessFile(args[0], "r");
int size = (int) raf.length();
byte[] data = new byte[size];
raf.readFully(data);
printData(data);
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}