| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, Lotus |
| * Development Corporation., http://www.lotus.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.xalan.serialize; |
| |
| import java.io.Writer; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.UnsupportedEncodingException; |
| |
| /** |
| * Provides information about encodings. Depends on the Java runtime |
| * to provides writers for the different encodings, but can be used |
| * to override encoding names and provide the last printable character |
| * for each encoding. |
| * |
| * @version $Revision$ $Date$ |
| * @author <a href="mailto:arkin@intalio.com">Assaf Arkin</a> |
| */ |
| public class Encodings extends Object |
| { |
| |
| /** |
| * The last printable character for unknown encodings. |
| */ |
| static final int m_defaultLastPrintable = 0x7F; |
| |
| /** |
| * Returns a writer for the specified encoding based on |
| * an output stream. |
| * |
| * @param output The output stream |
| * @param encoding The encoding |
| * @return A suitable writer |
| * @throws UnsupportedEncodingException There is no convertor |
| * to support this encoding |
| */ |
| public static Writer getWriter(OutputStream output, String encoding) |
| throws UnsupportedEncodingException |
| { |
| |
| for (int i = 0; i < _encodings.length; ++i) |
| { |
| if (_encodings[i].name.equalsIgnoreCase(encoding)) |
| { |
| try |
| { |
| return new OutputStreamWriter(output, _encodings[i].javaName); |
| } |
| catch( java.lang.IllegalArgumentException iae) // java 1.1.8 |
| { |
| // keep trying |
| } |
| catch (UnsupportedEncodingException usee) |
| { |
| |
| // keep trying |
| } |
| } |
| } |
| |
| try |
| { |
| return new OutputStreamWriter(output, encoding); |
| } |
| catch( java.lang.IllegalArgumentException iae) // java 1.1.8 |
| { |
| throw new UnsupportedEncodingException(encoding); |
| } |
| } |
| |
| /** |
| * Returns the last printable character for the specified |
| * encoding. |
| * |
| * @param encoding The encoding |
| * @return The last printable character |
| */ |
| public static int getLastPrintable(String encoding) |
| { |
| |
| for (int i = 0; i < _encodings.length; ++i) |
| { |
| if (_encodings[i].name.equalsIgnoreCase(encoding) |
| || _encodings[i].javaName.equalsIgnoreCase(encoding)) |
| return _encodings[i].lastPrintable; |
| } |
| |
| return m_defaultLastPrintable; |
| } |
| |
| /** |
| * Returns the last printable character for an unspecified |
| * encoding. |
| * |
| * @return the default size |
| */ |
| public static int getLastPrintable() |
| { |
| return m_defaultLastPrintable; |
| } |
| |
| /** The default encoding, ISO style, ISO style. */ |
| public static final String DEFAULT_MIME_ENCODING = "UTF-8"; |
| |
| /** |
| * Get the proper mime encoding. From the XSLT recommendation: "The encoding |
| * attribute specifies the preferred encoding to use for outputting the result |
| * tree. XSLT processors are required to respect values of UTF-8 and UTF-16. |
| * For other values, if the XSLT processor does not support the specified |
| * encoding it may signal an error; if it does not signal an error it should |
| * use UTF-8 or UTF-16 instead. The XSLT processor must not use an encoding |
| * whose name does not match the EncName production of the XML Recommendation |
| * [XML]. If no encoding attribute is specified, then the XSLT processor should |
| * use either UTF-8 or UTF-16." |
| * |
| * @param encoding Reference to java-style encoding string, which may be null, |
| * in which case a default will be found. |
| * |
| * @return The ISO-style encoding string, or null if failure. |
| */ |
| public static String getMimeEncoding(String encoding) |
| { |
| |
| if (null == encoding) |
| { |
| try |
| { |
| |
| // Get the default system character encoding. This may be |
| // incorrect if they passed in a writer, but right now there |
| // seems to be no way to get the encoding from a writer. |
| encoding = System.getProperty("file.encoding", "UTF8"); |
| |
| if (null != encoding) |
| { |
| |
| /* |
| * See if the mime type is equal to UTF8. If you don't |
| * do that, then convertJava2MimeEncoding will convert |
| * 8859_1 to "ISO-8859-1", which is not what we want, |
| * I think, and I don't think I want to alter the tables |
| * to convert everything to UTF-8. |
| */ |
| String jencoding = |
| (encoding.equalsIgnoreCase("Cp1252") || encoding.equalsIgnoreCase( |
| "ISO8859_1") || encoding.equalsIgnoreCase("8859_1") || encoding.equalsIgnoreCase("UTF8")) ? DEFAULT_MIME_ENCODING |
| : convertJava2MimeEncoding( |
| encoding); |
| |
| encoding = (null != jencoding) ? jencoding : DEFAULT_MIME_ENCODING; |
| } |
| else |
| { |
| encoding = DEFAULT_MIME_ENCODING; |
| } |
| } |
| catch (SecurityException se) |
| { |
| encoding = DEFAULT_MIME_ENCODING; |
| } |
| } |
| else |
| { |
| encoding = convertJava2MimeEncoding(encoding); |
| } |
| |
| return encoding; |
| } |
| |
| /** |
| * Try the best we can to convert a Java encoding to a XML-style encoding. |
| * |
| * @param encoding non-null reference to encoding string, java style. |
| * |
| * @return ISO-style encoding string. |
| */ |
| public static String convertJava2MimeEncoding(String encoding) |
| { |
| |
| for (int i = 0; i < _encodings.length; ++i) |
| { |
| if (_encodings[i].javaName.equalsIgnoreCase(encoding)) |
| { |
| return _encodings[i].name; |
| } |
| } |
| |
| return encoding; |
| } |
| |
| /** |
| * Try the best we can to convert a Java encoding to a XML-style encoding. |
| * |
| * @param encoding non-null reference to encoding string, java style. |
| * |
| * @return ISO-style encoding string. |
| */ |
| public static String convertMime2JavaEncoding(String encoding) |
| { |
| |
| for (int i = 0; i < _encodings.length; ++i) |
| { |
| if (_encodings[i].name.equalsIgnoreCase(encoding)) |
| { |
| return _encodings[i].javaName; |
| } |
| } |
| |
| return encoding; |
| } |
| |
| |
| /** |
| * Constructs a list of all the supported encodings. |
| */ |
| private static final EncodingInfo[] _encodings = new EncodingInfo[] |
| { |
| |
| // <preferred MIME name>, <Java encoding name> |
| // new EncodingInfo( "ISO 8859-1", "CP1252"); // Close enough, I guess |
| new EncodingInfo("WINDOWS-1250", "Cp1250", 0x00FF), // Peter Smolik |
| // Patch attributed to havardw@underdusken.no (Håvard Wigtil) |
| new EncodingInfo("WINDOWS-1252", "Cp1252", 0x00FF), |
| new EncodingInfo("UTF-8", "UTF8", 0xFFFF), |
| new EncodingInfo("US-ASCII", "ISO8859_1", 0x7F), |
| new EncodingInfo("ISO-8859-1", "ISO8859_1", 0x00FF), |
| // Patch attributed to havardw@underdusken.no (Håvard Wigtil) |
| new EncodingInfo("ISO-8859-1", "ISO8859-1", 0x00FF), |
| new EncodingInfo("ISO-8859-2", "ISO8859_2", 0x00FF), |
| // I'm going to apply "ISO8859-X" variant to all these, to be safe. |
| new EncodingInfo("ISO-8859-2", "ISO8859-2", 0x00FF), |
| new EncodingInfo("ISO-8859-3", "ISO8859_3", 0x00FF), |
| new EncodingInfo("ISO-8859-3", "ISO8859-3", 0x00FF), |
| new EncodingInfo("ISO-8859-4", "ISO8859_4", 0x00FF), |
| new EncodingInfo("ISO-8859-4", "ISO8859-4", 0x00FF), |
| new EncodingInfo("ISO-8859-5", "ISO8859_5", 0x00FF), |
| new EncodingInfo("ISO-8859-5", "ISO8859-5", 0x00FF), |
| new EncodingInfo("ISO-8859-6", "ISO8859_6", 0x00FF), |
| new EncodingInfo("ISO-8859-6", "ISO8859-6", 0x00FF), |
| new EncodingInfo("ISO-8859-7", "ISO8859_7", 0x00FF), |
| new EncodingInfo("ISO-8859-7", "ISO8859-7", 0x00FF), |
| new EncodingInfo("ISO-8859-8", "ISO8859_8", 0x00FF), |
| new EncodingInfo("ISO-8859-8", "ISO8859-8", 0x00FF), |
| new EncodingInfo("ISO-8859-9", "ISO8859_9", 0x00FF), |
| new EncodingInfo("ISO-8859-9", "ISO8859-9", 0x00FF), |
| new EncodingInfo("US-ASCII", "8859_1", 0x00FF), // ? |
| new EncodingInfo("ISO-8859-1", "8859_1", 0x00FF), |
| new EncodingInfo("ISO-8859-2", "8859_2", 0x00FF), |
| new EncodingInfo("ISO-8859-3", "8859_3", 0x00FF), |
| new EncodingInfo("ISO-8859-4", "8859_4", 0x00FF), |
| new EncodingInfo("ISO-8859-5", "8859_5", 0x00FF), |
| new EncodingInfo("ISO-8859-6", "8859_6", 0x00FF), |
| new EncodingInfo("ISO-8859-7", "8859_7", 0x00FF), |
| new EncodingInfo("ISO-8859-8", "8859_8", 0x00FF), |
| new EncodingInfo("ISO-8859-9", "8859_9", 0x00FF), |
| new EncodingInfo("ISO-8859-1", "8859-1", 0x00FF), |
| new EncodingInfo("ISO-8859-2", "8859-2", 0x00FF), |
| new EncodingInfo("ISO-8859-3", "8859-3", 0x00FF), |
| new EncodingInfo("ISO-8859-4", "8859-4", 0x00FF), |
| new EncodingInfo("ISO-8859-5", "8859-5", 0x00FF), |
| new EncodingInfo("ISO-8859-6", "8859-6", 0x00FF), |
| new EncodingInfo("ISO-8859-7", "8859-7", 0x00FF), |
| new EncodingInfo("ISO-8859-8", "8859-8", 0x00FF), |
| new EncodingInfo("ISO-8859-9", "8859-9", 0x00FF), |
| new EncodingInfo("ISO-2022-JP", "JIS", 0xFFFF), |
| new EncodingInfo("SHIFT_JIS", "SJIS", 0xFFFF), |
| new EncodingInfo("EUC-JP", "EUC_JP", 0xFFFF), |
| new EncodingInfo("EUC-KR", "EUC_KR", 0xFFFF), |
| new EncodingInfo("EUC-CN", "EUC_CN", 0xFFFF), |
| new EncodingInfo("EUC-TW", "EUC_TW", 0xFFFF), |
| new EncodingInfo("GB2312", "EUC_CN", 0xFFFF), |
| new EncodingInfo("EUC-JP", "EUC-JP", 0xFFFF), |
| new EncodingInfo("EUC-KR", "EUC-KR", 0xFFFF), |
| new EncodingInfo("EUC-CN", "EUC-CN", 0xFFFF), |
| new EncodingInfo("EUC-TW", "EUC-TW", 0xFFFF), |
| new EncodingInfo("GB2312", "EUC-CN", 0xFFFF), |
| new EncodingInfo("GB2312", "GB2312", 0xFFFF), |
| new EncodingInfo("BIG5", "Big5", 0xFFFF), |
| new EncodingInfo("EUC-JP", "EUCJIS", 0xFFFF), |
| new EncodingInfo("EUC-KR", "KSC5601", 0xFFFF), |
| new EncodingInfo("ISO-2022-KR", "ISO2022KR", 0xFFFF), |
| new EncodingInfo("KOI8-R", "KOI8_R", 0xFFFF), |
| new EncodingInfo("EBCDIC-CP-US", "Cp037", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-CA", "Cp037", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-NL", "Cp037", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-DK", "Cp277", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-NO", "Cp277", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-FI", "Cp278", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-SE", "Cp278", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-IT", "Cp280", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-ES", "Cp284", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-GB", "Cp285", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-FR", "Cp297", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-AR1", "Cp420", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-HE", "Cp424", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-CH", "Cp500", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-ROECE", "Cp870", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-YU", "Cp870", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-IS", "Cp871", 0x00FF), |
| new EncodingInfo("EBCDIC-CP-AR2", "Cp918", 0x00FF), |
| new EncodingInfo("MacRoman", "MacTEC", 0xFF), |
| new EncodingInfo("ASCII", "ASCII", 0x7F), |
| new EncodingInfo("ISO-Latin-1", "ASCII", 0xFF), |
| new EncodingInfo("UTF-8", "UTF8", 0xFFFF), |
| new EncodingInfo("UNICODE", "Unicode", 0xFFFF), |
| new EncodingInfo("UTF-16", "Unicode", 0xFFFF) |
| }; |
| } |
