PdfEncodings.java
/*
* Copyright 2002 Paulo Soares
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or 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 Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* https://github.com/LibrePDF/OpenPDF
*/
package org.openpdf.text.pdf;
import org.openpdf.text.ExceptionConverter;
import java.io.UnsupportedEncodingException;
import java.util.Locale;
import java.util.concurrent.ConcurrentHashMap;
/**
* Supports fast encodings for winansi and PDFDocEncoding. Supports conversions from CJK encodings to CID. Supports
* custom encodings.
*
* @author Paulo Soares (psoares@consiste.pt)
*/
public class PdfEncodings {
static final char[] winansiByteToChar = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78,
79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122,
123, 124, 125, 126, 127, 8364, 65533, 8218, 402, 8222, 8230, 8224,
8225, 710, 8240, 352, 8249, 338, 65533, 381, 65533, 65533, 8216,
8217, 8220, 8221, 8226, 8211, 8212, 732, 8482, 353, 8250, 339,
65533, 382, 376, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169,
170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182,
183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195,
196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208,
209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221,
222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234,
235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247,
248, 249, 250, 251, 252, 253, 254, 255};
static final char[] pdfEncodingByteToChar = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77,
78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94,
95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108,
109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121,
122, 123, 124, 125, 126, 127, 0x2022, 0x2020, 0x2021, 0x2026,
0x2014, 0x2013, 0x0192, 0x2044, 0x2039, 0x203a, 0x2212, 0x2030,
0x201e, 0x201c, 0x201d, 0x2018, 0x2019, 0x201a, 0x2122, 0xfb01,
0xfb02, 0x0141, 0x0152, 0x0160, 0x0178, 0x017d, 0x0131, 0x0142,
0x0153, 0x0161, 0x017e, 65533, 0x20ac, 161, 162, 163, 164, 165,
166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178,
179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204,
205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217,
218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230,
231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243,
244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255};
static final IntHashtable winansi = new IntHashtable();
static final IntHashtable pdfEncoding = new IntHashtable();
static ConcurrentHashMap<String, ExtraEncoding> extraEncodings = new ConcurrentHashMap<>(
200, 0.85f, 64);
static {
for (int k = 128; k < 161; ++k) {
char c = winansiByteToChar[k];
if (c != 65533) {
winansi.put(c, k);
}
}
for (int k = 128; k < 161; ++k) {
char c = pdfEncodingByteToChar[k];
if (c != 65533) {
pdfEncoding.put(c, k);
}
}
addExtraEncoding("Wingdings", new WingdingsConversion());
addExtraEncoding("Symbol", new SymbolConversion(true));
addExtraEncoding("ZapfDingbats", new SymbolConversion(false));
addExtraEncoding("SymbolTT", new SymbolTTConversion());
addExtraEncoding("Cp437", new Cp437Conversion());
}
/**
* Converts a <CODE>String</CODE> to a <CODE>byte</CODE> array according to the font's encoding.
*
* @param encoding the encoding
* @param text the <CODE>String</CODE> to be converted
* @return an array of <CODE>byte</CODE> representing the conversion according to the font's encoding
*/
public static final byte[] convertToBytes(String text, String encoding) {
if (text == null) {
return new byte[0];
}
if (encoding == null || encoding.length() == 0) {
int len = text.length();
byte[] b = new byte[len];
for (int k = 0; k < len; ++k) {
b[k] = (byte) text.charAt(k);
}
return b;
}
ExtraEncoding extra = extraEncodings.get(encoding.toLowerCase(Locale.ROOT));
if (extra != null) {
byte[] b = extra.charToByte(text, encoding);
if (b != null) {
return b;
}
}
IntHashtable hash = null;
if (encoding.equals(BaseFont.WINANSI)) {
hash = winansi;
} else if (encoding.equals(PdfObject.TEXT_PDFDOCENCODING)) {
hash = pdfEncoding;
}
if (hash != null) {
char[] cc = text.toCharArray();
int len = cc.length;
int ptr = 0;
byte[] b = new byte[len];
int c = 0;
for (char char1 : cc) {
if (char1 < 128 || char1 > 160 && char1 <= 255) {
c = char1;
} else {
c = hash.get(char1);
}
if (c != 0) {
b[ptr++] = (byte) c;
}
}
if (ptr == len) {
return b;
}
byte[] b2 = new byte[ptr];
System.arraycopy(b, 0, b2, 0, ptr);
return b2;
}
if (encoding.equals(PdfObject.TEXT_UNICODE)) {
// workaround for jdk 1.2.2 bug
char[] cc = text.toCharArray();
byte[] b = new byte[cc.length * 2 + 2];
b[0] = -2;
b[1] = -1;
int bptr = 2;
for (char c : cc) {
b[bptr++] = (byte) (c >> 8);
b[bptr++] = (byte) (c & 0xff);
}
return b;
}
try {
return text.getBytes(encoding);
} catch (UnsupportedEncodingException e) {
throw new ExceptionConverter(e);
}
}
/**
* Converts a <CODE>String</CODE> to a <CODE>byte</CODE> array according to the font's encoding.
*
* @param encoding the encoding
* @param char1 the <CODE>char</CODE> to be converted
* @return an array of <CODE>byte</CODE> representing the conversion according to the font's encoding
*/
public static final byte[] convertToBytes(char char1, String encoding) {
if (encoding == null || encoding.length() == 0) {
return new byte[]{(byte) char1};
}
ExtraEncoding extra = extraEncodings.get(encoding.toLowerCase(Locale.ROOT));
if (extra != null) {
byte[] b = extra.charToByte(char1, encoding);
if (b != null) {
return b;
}
}
IntHashtable hash = null;
if (encoding.equals(BaseFont.WINANSI)) {
hash = winansi;
} else if (encoding.equals(PdfObject.TEXT_PDFDOCENCODING)) {
hash = pdfEncoding;
}
if (hash != null) {
int c = 0;
if (char1 < 128 || char1 > 160 && char1 <= 255) {
c = char1;
} else {
c = hash.get(char1);
}
if (c != 0) {
return new byte[]{(byte) c};
} else {
return new byte[0];
}
}
if (encoding.equals(PdfObject.TEXT_UNICODE)) {
// workaround for jdk 1.2.2 bug
byte[] b = new byte[4];
b[0] = -2;
b[1] = -1;
b[2] = (byte) (char1 >> 8);
b[3] = (byte) (char1 & 0xff);
return b;
}
try {
return String.valueOf(char1).getBytes(encoding);
} catch (UnsupportedEncodingException e) {
throw new ExceptionConverter(e);
}
}
/**
* Converts a <CODE>byte</CODE> array to a <CODE>String</CODE> according to the some encoding.
*
* @param bytes the bytes to convert
* @param encoding the encoding
* @return the converted <CODE>String</CODE>
*/
public static final String convertToString(byte[] bytes, String encoding) {
if (bytes == null) {
return PdfObject.NOTHING;
}
if (encoding == null || encoding.length() == 0) {
char[] c = new char[bytes.length];
for (int k = 0; k < bytes.length; ++k) {
c[k] = (char) (bytes[k] & 0xff);
}
return new String(c);
}
ExtraEncoding extra = extraEncodings.get(encoding.toLowerCase(Locale.ROOT));
if (extra != null) {
String text = extra.byteToChar(bytes, encoding);
if (text != null) {
return text;
}
}
char[] ch = null;
if (encoding.equals(BaseFont.WINANSI)) {
ch = winansiByteToChar;
} else if (encoding.equals(PdfObject.TEXT_PDFDOCENCODING)) {
ch = pdfEncodingByteToChar;
}
if (ch != null) {
int len = bytes.length;
char[] c = new char[len];
for (int k = 0; k < len; ++k) {
c[k] = ch[bytes[k] & 0xff];
}
return new String(c);
}
try {
return new String(bytes, encoding);
} catch (UnsupportedEncodingException e) {
throw new ExceptionConverter(e);
}
}
/**
* Checks is <CODE>text</CODE> only has PdfDocEncoding characters.
*
* @param text the <CODE>String</CODE> to test
* @return <CODE>true</CODE> if only PdfDocEncoding characters are present
*/
public static boolean isPdfDocEncoding(String text) {
if (text == null) {
return true;
}
int len = text.length();
for (int k = 0; k < len; ++k) {
char char1 = text.charAt(k);
if (char1 < 128 || char1 > 160 && char1 <= 255) {
continue;
}
if (!pdfEncoding.containsKey(char1)) {
return false;
}
}
return true;
}
/**
* Adds an extra encoding.
*
* @param name the name of the encoding. The encoding recognition is case insensitive
* @param enc the conversion class
*/
public static void addExtraEncoding(String name, ExtraEncoding enc) {
extraEncodings.putIfAbsent(name.toLowerCase(Locale.ROOT), enc);
}
private static class WingdingsConversion implements ExtraEncoding {
private final static byte[] table = {0, 35, 34, 0, 0, 0, 41, 62, 81,
42, 0, 0, 65, 63, 0, 0, 0, 0, 0, -4, 0, 0, 0, -5, 0, 0, 0, 0,
0, 0, 86, 0, 88, 89, 0, 0, 0, 0, 0, 0, 0, 0, -75, 0, 0, 0, 0,
0, -74, 0, 0, 0, -83, -81, -84, 0, 0, 0, 0, 0, 0, 0, 0, 124,
123, 0, 0, 0, 84, 0, 0, 0, 0, 0, 0, 0, 0, -90, 0, 0, 0, 113,
114, 0, 0, 0, 117, 0, 0, 0, 0, 0, 0, 125, 126, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -116,
-115, -114, -113, -112, -111, -110, -109, -108, -107, -127,
-126, -125, -124, -123, -122, -121, -120, -119, -118, -116,
-115, -114, -113, -112, -111, -110, -109, -108, -107, -24, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -24, -40, 0, 0, -60, -58, 0,
0, -16, 0, 0, 0, 0, 0, 0, 0, 0, 0, -36, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0};
@Override
public byte[] charToByte(char char1, String encoding) {
if (char1 == ' ') {
return new byte[]{(byte) char1};
} else if (char1 >= '\u2701' && char1 <= '\u27BE') {
byte v = table[char1 - 0x2700];
if (v != 0) {
return new byte[]{v};
}
}
return new byte[0];
}
@Override
public byte[] charToByte(String text, String encoding) {
char[] cc = text.toCharArray();
byte[] b = new byte[cc.length];
int ptr = 0;
int len = cc.length;
for (char c : cc) {
if (c == ' ') {
b[ptr++] = (byte) c;
} else if (c >= '\u2701' && c <= '\u27BE') {
byte v = table[c - 0x2700];
if (v != 0) {
b[ptr++] = v;
}
}
}
if (ptr == len) {
return b;
}
byte[] b2 = new byte[ptr];
System.arraycopy(b, 0, b2, 0, ptr);
return b2;
}
@Override
public String byteToChar(byte[] b, String encoding) {
return null;
}
}
private static class Cp437Conversion implements ExtraEncoding {
private final static char[] table = {'\u00C7', '\u00FC', '\u00E9',
'\u00E2', '\u00E4', '\u00E0', '\u00E5', '\u00E7', '\u00EA',
'\u00EB', '\u00E8', '\u00EF', '\u00EE', '\u00EC', '\u00C4',
'\u00C5', '\u00C9', '\u00E6', '\u00C6', '\u00F4', '\u00F6',
'\u00F2', '\u00FB', '\u00F9', '\u00FF', '\u00D6', '\u00DC',
'\u00A2', '\u00A3', '\u00A5', '\u20A7', '\u0192', '\u00E1',
'\u00ED', '\u00F3', '\u00FA', '\u00F1', '\u00D1', '\u00AA',
'\u00BA', '\u00BF', '\u2310', '\u00AC', '\u00BD', '\u00BC',
'\u00A1', '\u00AB', '\u00BB', '\u2591', '\u2592', '\u2593',
'\u2502', '\u2524', '\u2561', '\u2562', '\u2556', '\u2555',
'\u2563', '\u2551', '\u2557', '\u255D', '\u255C', '\u255B',
'\u2510', '\u2514', '\u2534', '\u252C', '\u251C', '\u2500',
'\u253C', '\u255E', '\u255F', '\u255A', '\u2554', '\u2569',
'\u2566', '\u2560', '\u2550', '\u256C', '\u2567', '\u2568',
'\u2564', '\u2565', '\u2559', '\u2558', '\u2552', '\u2553',
'\u256B', '\u256A', '\u2518', '\u250C', '\u2588', '\u2584',
'\u258C', '\u2590', '\u2580', '\u03B1', '\u00DF', '\u0393',
'\u03C0', '\u03A3', '\u03C3', '\u00B5', '\u03C4', '\u03A6',
'\u0398', '\u03A9', '\u03B4', '\u221E', '\u03C6', '\u03B5',
'\u2229', '\u2261', '\u00B1', '\u2265', '\u2264', '\u2320',
'\u2321', '\u00F7', '\u2248', '\u00B0', '\u2219', '\u00B7',
'\u221A', '\u207F', '\u00B2', '\u25A0', '\u00A0'};
private static IntHashtable c2b = new IntHashtable();
static {
for (int k = 0; k < table.length; ++k) {
c2b.put(table[k], k + 128);
}
}
@Override
public byte[] charToByte(String text, String encoding) {
char[] cc = text.toCharArray();
byte[] b = new byte[cc.length];
int ptr = 0;
int len = cc.length;
for (char c : cc) {
if (c < 128) {
b[ptr++] = (byte) c;
} else {
byte v = (byte) c2b.get(c);
if (v != 0) {
b[ptr++] = v;
}
}
}
if (ptr == len) {
return b;
}
byte[] b2 = new byte[ptr];
System.arraycopy(b, 0, b2, 0, ptr);
return b2;
}
@Override
public byte[] charToByte(char char1, String encoding) {
if (char1 < 128) {
return new byte[]{(byte) char1};
} else {
byte v = (byte) c2b.get(char1);
if (v != 0) {
return new byte[]{v};
} else {
return new byte[0];
}
}
}
@Override
public String byteToChar(byte[] b, String encoding) {
int len = b.length;
char[] cc = new char[len];
int ptr = 0;
for (byte b1 : b) {
int c = b1 & 0xff;
if (c < ' ') {
continue;
}
if (c < 128) {
cc[ptr++] = (char) c;
} else {
char v = table[c - 128];
cc[ptr++] = v;
}
}
return new String(cc, 0, ptr);
}
}
private static class SymbolConversion implements ExtraEncoding {
private static final IntHashtable t1 = new IntHashtable();
private static final IntHashtable t2 = new IntHashtable();
private final static char[] table1 = {' ', '!', '\u2200', '#',
'\u2203', '%', '&', '\u220b', '(', ')', '*', '+', ',', '-',
'.', '/', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
':', ';', '<', '=', '>', '?', '\u2245', '\u0391', '\u0392',
'\u03a7', '\u0394', '\u0395', '\u03a6', '\u0393', '\u0397',
'\u0399', '\u03d1', '\u039a', '\u039b', '\u039c', '\u039d',
'\u039f', '\u03a0', '\u0398', '\u03a1', '\u03a3', '\u03a4',
'\u03a5', '\u03c2', '\u03a9', '\u039e', '\u03a8', '\u0396',
'[', '\u2234', ']', '\u22a5', '_', '\u0305', '\u03b1',
'\u03b2', '\u03c7', '\u03b4', '\u03b5', '\u03d5', '\u03b3',
'\u03b7', '\u03b9', '\u03c6', '\u03ba', '\u03bb', '\u03bc',
'\u03bd', '\u03bf', '\u03c0', '\u03b8', '\u03c1', '\u03c3',
'\u03c4', '\u03c5', '\u03d6', '\u03c9', '\u03be', '\u03c8',
'\u03b6', '{', '|', '}', '~', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\u20ac',
'\u03d2', '\u2032', '\u2264', '\u2044', '\u221e', '\u0192',
'\u2663', '\u2666', '\u2665', '\u2660', '\u2194', '\u2190',
'\u2191', '\u2192', '\u2193', '\u00b0', '\u00b1', '\u2033',
'\u2265', '\u00d7', '\u221d', '\u2202', '\u2022', '\u00f7',
'\u2260', '\u2261', '\u2248', '\u2026', '\u2502', '\u2500',
'\u21b5', '\u2135', '\u2111', '\u211c', '\u2118', '\u2297',
'\u2295', '\u2205', '\u2229', '\u222a', '\u2283', '\u2287',
'\u2284', '\u2282', '\u2286', '\u2208', '\u2209', '\u2220',
'\u2207', '\u00ae', '\u00a9', '\u2122', '\u220f', '\u221a',
'\u2022', '\u00ac', '\u2227', '\u2228', '\u21d4', '\u21d0',
'\u21d1', '\u21d2', '\u21d3', '\u25ca', '\u2329', '\0', '\0',
'\0', '\u2211', '\u239b', '\u239c', '\u239d', '\u23a1',
'\u23a2', '\u23a3', '\u23a7', '\u23a8', '\u23a9', '\u23aa',
'\0', '\u232a', '\u222b', '\u2320', '\u23ae', '\u2321',
'\u239e', '\u239f', '\u23a0', '\u23a4', '\u23a5', '\u23a6',
'\u23ab', '\u23ac', '\u23ad', '\0'};
private final static char[] table2 = {'\u0020', '\u2701', '\u2702',
'\u2703', '\u2704', '\u260e', '\u2706', '\u2707', '\u2708',
'\u2709', '\u261b', '\u261e', '\u270C', '\u270D', '\u270E',
'\u270F', '\u2710', '\u2711', '\u2712', '\u2713', '\u2714',
'\u2715', '\u2716', '\u2717', '\u2718', '\u2719', '\u271A',
'\u271B', '\u271C', '\u271D', '\u271E', '\u271F', '\u2720',
'\u2721', '\u2722', '\u2723', '\u2724', '\u2725', '\u2726',
'\u2727', '\u2605', '\u2729', '\u272A', '\u272B', '\u272C',
'\u272D', '\u272E', '\u272F', '\u2730', '\u2731', '\u2732',
'\u2733', '\u2734', '\u2735', '\u2736', '\u2737', '\u2738',
'\u2739', '\u273A', '\u273B', '\u273C', '\u273D', '\u273E',
'\u273F', '\u2740', '\u2741', '\u2742', '\u2743', '\u2744',
'\u2745', '\u2746', '\u2747', '\u2748', '\u2749', '\u274A',
'\u274B', '\u25cf', '\u274D', '\u25a0', '\u274F', '\u2750',
'\u2751', '\u2752', '\u25b2', '\u25bc', '\u25c6', '\u2756',
'\u25d7', '\u2758', '\u2759', '\u275A', '\u275B', '\u275C',
'\u275D', '\u275E', '\u0000', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\u0000', '\u2761',
'\u2762', '\u2763', '\u2764', '\u2765', '\u2766', '\u2767',
'\u2663', '\u2666', '\u2665', '\u2660', '\u2460', '\u2461',
'\u2462', '\u2463', '\u2464', '\u2465', '\u2466', '\u2467',
'\u2468', '\u2469', '\u2776', '\u2777', '\u2778', '\u2779',
'\u277A', '\u277B', '\u277C', '\u277D', '\u277E', '\u277F',
'\u2780', '\u2781', '\u2782', '\u2783', '\u2784', '\u2785',
'\u2786', '\u2787', '\u2788', '\u2789', '\u278A', '\u278B',
'\u278C', '\u278D', '\u278E', '\u278F', '\u2790', '\u2791',
'\u2792', '\u2793', '\u2794', '\u2192', '\u2194', '\u2195',
'\u2798', '\u2799', '\u279A', '\u279B', '\u279C', '\u279D',
'\u279E', '\u279F', '\u27A0', '\u27A1', '\u27A2', '\u27A3',
'\u27A4', '\u27A5', '\u27A6', '\u27A7', '\u27A8', '\u27A9',
'\u27AA', '\u27AB', '\u27AC', '\u27AD', '\u27AE', '\u27AF',
'\u0000', '\u27B1', '\u27B2', '\u27B3', '\u27B4', '\u27B5',
'\u27B6', '\u27B7', '\u27B8', '\u27B9', '\u27BA', '\u27BB',
'\u27BC', '\u27BD', '\u27BE', '\u0000'};
static {
for (int k = 0; k < table1.length; ++k) {
int v = table1[k];
if (v != 0) {
t1.put(v, k + 32);
}
}
for (int k = 0; k < table2.length; ++k) {
int v = table2[k];
if (v != 0) {
t2.put(v, k + 32);
}
}
}
private IntHashtable translation;
private char[] revTranslation;
SymbolConversion(boolean symbol) {
if (symbol) {
translation = t1;
revTranslation = table1;
} else {
translation = t2;
revTranslation = table2;
}
}
@Override
public byte[] charToByte(String text, String encoding) {
char[] cc = text.toCharArray();
byte[] b = new byte[cc.length];
int ptr = 0;
int len = cc.length;
for (char c : cc) {
byte v = (byte) translation.get(c);
if (v != 0) {
b[ptr++] = v;
}
}
if (ptr == len) {
return b;
}
byte[] b2 = new byte[ptr];
System.arraycopy(b, 0, b2, 0, ptr);
return b2;
}
@Override
public byte[] charToByte(char char1, String encoding) {
byte v = (byte) translation.get(char1);
if (v != 0) {
return new byte[]{v};
} else {
return new byte[0];
}
}
@Override
public String byteToChar(byte[] b, String encoding) {
int len = b.length;
char[] chars = new char[len];
for (int i = 0; i < len; i++) {
int pos = b[i] & 0xff;
if (pos < 32) {
chars[i] = 0;
} else {
chars[i] = revTranslation[pos - 32];
}
}
return new String(chars);
}
}
private static class SymbolTTConversion implements ExtraEncoding {
@Override
public byte[] charToByte(char char1, String encoding) {
if ((char1 & 0xff00) == 0 || (char1 & 0xff00) == 0xf000) {
return new byte[]{(byte) char1};
} else {
return new byte[0];
}
}
@Override
public byte[] charToByte(String text, String encoding) {
char[] ch = text.toCharArray();
byte[] b = new byte[ch.length];
int ptr = 0;
int len = ch.length;
for (char c : ch) {
if ((c & 0xff00) == 0 || (c & 0xff00) == 0xf000) {
b[ptr++] = (byte) c;
}
}
if (ptr == len) {
return b;
}
byte[] b2 = new byte[ptr];
System.arraycopy(b, 0, b2, 0, ptr);
return b2;
}
@Override
public String byteToChar(byte[] b, String encoding) {
return null;
}
}
}