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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.util;
/**
* This interface defines constants used by the ASCII85 filters.
*
* @author <a href="mailto:jeremias@apache.org">Jeremias Maerki</a>
* @version $Id$
*/
public interface ASCII85Constants {
/** Special character "z" stands for four NULL bytes (short-cut for !!!!!) */
public static final int ZERO = 0x7A; //"z"
/** ZERO as a byte array */
public static final byte[] ZERO_ARRAY = {(byte)ZERO};
/** The start index for ASCII85 characters (!) */
public static final int START = 0x21; //"!"
/** The end index for ASCII85 characters (u) */
public static final int END = 0x75; //"u"
/** The EOL indicator (LF) */
public static final int EOL = 0x0A; //"\n"
/** The EOD (end of data) indicator */
public static final byte[] EOD = {0x7E, 0x3E}; //"~>"
/** Array of powers of 85 (4, 3, 2, 1, 0) */
public static final long POW85[] = new long[] {85 * 85 * 85 * 85,
85 * 85 * 85,
85 * 85,
85,
1};
/*
public static final long BASE85_4 = 85;
public static final long BASE85_3 = BASE85_4 * BASE85_4;
public static final long BASE85_2 = BASE85_3 * BASE85_4;
public static final long BASE85_1 = BASE85_2 * BASE85_4;
*/
}
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