2362N/A * Copyright (c) 1995, 1997, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * This class implements a BASE64 Character encoder as specified in RFC1521. 0N/A * This RFC is part of the MIME specification as published by the Internet 0N/A * Engineering Task Force (IETF). Unlike some other encoding schemes there 0N/A * is nothing in this encoding that indicates 0N/A * where a buffer starts or ends. 0N/A * This means that the encoded text will simply start with the first line 0N/A * of encoded text and end with the last line of encoded text. 0N/A * @author Chuck McManis 0N/A * @see CharacterEncoder 0N/A * @see BASE64Decoder 0N/A /** this class encodes three bytes per atom. */ 0N/A * this class encodes 57 bytes per line. This results in a maximum 0N/A * of 57/3 * 4 or 76 characters per output line. Not counting the 0N/A /** This array maps the characters to their 6 bit values */ 0N/A 'A',
'B',
'C',
'D',
'E',
'F',
'G',
'H',
// 0 0N/A 'I',
'J',
'K',
'L',
'M',
'N',
'O',
'P',
// 1 0N/A 'Q',
'R',
'S',
'T',
'U',
'V',
'W',
'X',
// 2 0N/A 'Y',
'Z',
'a',
'b',
'c',
'd',
'e',
'f',
// 3 0N/A 'g',
'h',
'i',
'j',
'k',
'l',
'm',
'n',
// 4 0N/A 'o',
'p',
'q',
'r',
's',
't',
'u',
'v',
// 5 0N/A 'w',
'x',
'y',
'z',
'0',
'1',
'2',
'3',
// 6 0N/A '4',
'5',
'6',
'7',
'8',
'9',
'+',
'/' // 7 0N/A * encodeAtom - Take three bytes of input and encode it as 4 0N/A * printable characters. Note that if the length in len is less 0N/A * than three is encodes either one or two '=' signs to indicate 0N/A * padding characters.