/*
* 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:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.pdf;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.StringTokenizer;
import com.lowagie.text.error_messages.MessageLocalization;
import com.lowagie.text.ExceptionConverter;
/** 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 {
protected static final int CIDNONE = 0;
protected static final int CIDRANGE = 1;
protected static final int CIDCHAR = 2;
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 HashMap extraEncodings = new HashMap();
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.
* @return an array of <CODE>byte</CODE> representing the conversion according to the font's encoding
* @param encoding the encoding
* @param text the <CODE>String</CODE> to be converted
*/
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 = (ExtraEncoding)extraEncodings.get(encoding.toLowerCase());
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 (int k = 0; k < len; ++k) {
char char1 = cc[k];
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();
int len = cc.length;
byte b[] = new byte[cc.length * 2 + 2];
b[0] = -2;
b[1] = -1;
int bptr = 2;
for (int k = 0; k < len; ++k) {
char c = cc[k];
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.
* @return an array of <CODE>byte</CODE> representing the conversion according to the font's encoding
* @param encoding the encoding
* @param char1 the <CODE>char</CODE> to be converted
*/
public static final byte[] convertToBytes(char char1, String encoding) {
if (encoding == null || encoding.length() == 0)
return new byte[]{(byte)char1};
ExtraEncoding extra = (ExtraEncoding)extraEncodings.get(encoding.toLowerCase());
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 = (ExtraEncoding)extraEncodings.get(encoding.toLowerCase());
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;
}
static final HashMap cmaps = new HashMap();
/** Assumes that '\\n' and '\\r\\n' are the newline sequences. It may not work for
* all CJK encodings. To be used with loadCmap().
*/
public static final byte CRLF_CID_NEWLINE[][] = new byte[][]{{(byte)'\n'}, {(byte)'\r', (byte)'\n'}};
/** Clears the CJK cmaps from the cache. If <CODE>name</CODE> is the
* empty string then all the cache is cleared. Calling this method
* has no consequences other than the need to reload the cmap
* if needed.
* @param name the name of the cmap to clear or all the cmaps if the empty string
*/
public static void clearCmap(String name) {
synchronized (cmaps) {
if (name.length() == 0)
cmaps.clear();
else
cmaps.remove(name);
}
}
/** Loads a CJK cmap to the cache with the option of associating
* sequences to the newline.
* @param name the CJK cmap name
* @param newline the sequences to be replaced by a newline in the resulting CID. See <CODE>CRLF_CID_NEWLINE</CODE>
*/
public static void loadCmap(String name, byte newline[][]) {
try {
char planes[][] = null;
synchronized (cmaps) {
planes = (char[][])cmaps.get(name);
}
if (planes == null) {
planes = readCmap(name, newline);
synchronized (cmaps) {
cmaps.put(name, planes);
}
}
}
catch (IOException e) {
throw new ExceptionConverter(e);
}
}
/** Converts a <CODE>byte</CODE> array encoded as <CODE>name</CODE>
* to a CID string. This is needed to reach some CJK characters
* that don't exist in 16 bit Unicode.</p>
* The font to use this result must use the encoding "Identity-H"
* or "Identity-V".</p>
* See ftp://ftp.oreilly.com/pub/examples/nutshell/cjkv/adobe/.
* @param name the CJK encoding name
* @param seq the <CODE>byte</CODE> array to be decoded
* @return the CID string
*/
public static String convertCmap(String name, byte seq[]) {
return convertCmap(name, seq, 0, seq.length);
}
/** Converts a <CODE>byte</CODE> array encoded as <CODE>name</CODE>
* to a CID string. This is needed to reach some CJK characters
* that don't exist in 16 bit Unicode.</p>
* The font to use this result must use the encoding "Identity-H"
* or "Identity-V".</p>
* See ftp://ftp.oreilly.com/pub/examples/nutshell/cjkv/adobe/.
* @param name the CJK encoding name
* @param start the start offset in the data
* @param length the number of bytes to convert
* @param seq the <CODE>byte</CODE> array to be decoded
* @return the CID string
*/
public static String convertCmap(String name, byte seq[], int start, int length) {
try {
char planes[][] = null;
synchronized (cmaps) {
planes = (char[][])cmaps.get(name);
}
if (planes == null) {
planes = readCmap(name, (byte[][])null);
synchronized (cmaps) {
cmaps.put(name, planes);
}
}
return decodeSequence(seq, start, length, planes);
}
catch (IOException e) {
throw new ExceptionConverter(e);
}
}
static String decodeSequence(byte seq[], int start, int length, char planes[][]) {
StringBuffer buf = new StringBuffer();
int end = start + length;
int currentPlane = 0;
for (int k = start; k < end; ++k) {
int one = seq[k] & 0xff;
char plane[] = planes[currentPlane];
int cid = plane[one];
if ((cid & 0x8000) == 0) {
buf.append((char)cid);
currentPlane = 0;
}
else
currentPlane = cid & 0x7fff;
}
return buf.toString();
}
static char[][] readCmap(String name, byte newline[][]) throws IOException {
ArrayList planes = new ArrayList();
planes.add(new char[256]);
readCmap(name, planes);
if (newline != null) {
for (int k = 0; k < newline.length; ++k)
encodeSequence(newline[k].length, newline[k], BaseFont.CID_NEWLINE, planes);
}
char ret[][] = new char[planes.size()][];
return (char[][])planes.toArray(ret);
}
static void readCmap(String name, ArrayList planes) throws IOException {
String fullName = BaseFont.RESOURCE_PATH + "cmaps/" + name;
InputStream in = BaseFont.getResourceStream(fullName);
if (in == null)
throw new IOException(MessageLocalization.getComposedMessage("the.cmap.1.was.not.found", name));
encodeStream(in, planes);
in.close();
}
static void encodeStream(InputStream in, ArrayList planes) throws IOException {
BufferedReader rd = new BufferedReader(new InputStreamReader(in, "iso-8859-1"));
String line = null;
int state = CIDNONE;
byte seqs[] = new byte[7];
while ((line = rd.readLine()) != null) {
if (line.length() < 6)
continue;
switch (state) {
case CIDNONE: {
if (line.indexOf("begincidrange") >= 0)
state = CIDRANGE;
else if (line.indexOf("begincidchar") >= 0)
state = CIDCHAR;
else if (line.indexOf("usecmap") >= 0) {
StringTokenizer tk = new StringTokenizer(line);
String t = tk.nextToken();
readCmap(t.substring(1), planes);
}
break;
}
case CIDRANGE: {
if (line.indexOf("endcidrange") >= 0) {
state = CIDNONE;
break;
}
StringTokenizer tk = new StringTokenizer(line);
String t = tk.nextToken();
int size = t.length() / 2 - 1;
long start = Long.parseLong(t.substring(1, t.length() - 1), 16);
t = tk.nextToken();
long end = Long.parseLong(t.substring(1, t.length() - 1), 16);
t = tk.nextToken();
int cid = Integer.parseInt(t);
for (long k = start; k <= end; ++k) {
breakLong(k, size, seqs);
encodeSequence(size, seqs, (char)cid, planes);
++cid;
}
break;
}
case CIDCHAR: {
if (line.indexOf("endcidchar") >= 0) {
state = CIDNONE;
break;
}
StringTokenizer tk = new StringTokenizer(line);
String t = tk.nextToken();
int size = t.length() / 2 - 1;
long start = Long.parseLong(t.substring(1, t.length() - 1), 16);
t = tk.nextToken();
int cid = Integer.parseInt(t);
breakLong(start, size, seqs);
encodeSequence(size, seqs, (char)cid, planes);
break;
}
}
}
}
static void breakLong(long n, int size, byte seqs[]) {
for (int k = 0; k < size; ++k) {
seqs[k] = (byte)(n >> ((size - 1 - k) * 8));
}
}
static void encodeSequence(int size, byte seqs[], char cid, ArrayList planes) {
--size;
int nextPlane = 0;
for (int idx = 0; idx < size; ++idx) {
char plane[] = (char[])planes.get(nextPlane);
int one = seqs[idx] & 0xff;
char c = plane[one];
if (c != 0 && (c & 0x8000) == 0)
throw new RuntimeException(MessageLocalization.getComposedMessage("inconsistent.mapping"));
if (c == 0) {
planes.add(new char[256]);
c = (char)((planes.size() - 1) | 0x8000);
plane[one] = c;
}
nextPlane = c & 0x7fff;
}
char plane[] = (char[])planes.get(nextPlane);
int one = seqs[size] & 0xff;
char c = plane[one];
if ((c & 0x8000) != 0)
throw new RuntimeException(MessageLocalization.getComposedMessage("inconsistent.mapping"));
plane[one] = cid;
}
/** 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) {
synchronized (extraEncodings) { // This serializes concurrent updates
HashMap newEncodings = (HashMap)extraEncodings.clone();
newEncodings.put(name.toLowerCase(), enc);
extraEncodings = newEncodings; // This swap does not require synchronization with reader
}
}
private static class WingdingsConversion implements ExtraEncoding {
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];
}
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 (int k = 0; k < len; ++k) {
char c = cc[k];
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;
}
public String byteToChar(byte[] b, String encoding) {
return null;
}
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
};
}
private static class Cp437Conversion implements ExtraEncoding {
private static IntHashtable c2b = new IntHashtable();
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 (int k = 0; k < len; ++k) {
char c = cc[k];
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;
}
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];
}
}
public String byteToChar(byte[] b, String encoding) {
int len = b.length;
char cc[] = new char[len];
int ptr = 0;
for (int k = 0; k < len; ++k) {
int c = b[k] & 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 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'
};
static {
for (int k = 0; k < table.length; ++k)
c2b.put(table[k], k + 128);
}
}
private static class SymbolConversion implements ExtraEncoding {
private static final IntHashtable t1 = new IntHashtable();
private static final IntHashtable t2 = new IntHashtable();
private IntHashtable translation;
SymbolConversion(boolean symbol) {
if (symbol)
translation = t1;
else
translation = t2;
}
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 (int k = 0; k < len; ++k) {
char c = cc[k];
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;
}
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];
}
public String byteToChar(byte[] b, String encoding) {
return null;
}
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 static class SymbolTTConversion implements ExtraEncoding {
public byte[] charToByte(char char1, String encoding) {
if ((char1 & 0xff00) == 0 || (char1 & 0xff00) == 0xf000)
return new byte[]{(byte)char1};
else
return new byte[0];
}
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 (int k = 0; k < len; ++k) {
char c = ch[k];
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;
}
public String byteToChar(byte[] b, String encoding) {
return null;
}
}
}