author | ohair |
Wed, 06 Apr 2011 22:06:11 -0700 | |
changeset 9035 | 1255eb81cc2f |
parent 8560 | f2abd715d39b |
child 13041 | 8477cb6992be |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1996, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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*/ |
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/* |
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Currently javac and load() method in java.util.Properties |
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supports only Latin1 encoding input. |
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But in Asian platforms programmer or message translator |
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uses the editor which support othere than latin1 encoding |
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to specify their native language string. |
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So if programmer or message translator wants to use other than |
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Latin1 character in his/her program source or properties file |
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they must convert the file to ASCII plus \udddd notation. |
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(javac/load() modification is not appropriate due to |
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time constraints for JDK1.1) |
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This utility is for the purpose of that conversion. |
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NAME |
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native2ascii - convert native encoding file to ascii file |
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include \udddd Unicode notation |
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SYNOPSIS |
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native2ascii [options] [inputfile [outputfile]] |
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DESCRIPTION |
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If outputfile is not described standard output is used as |
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output file, and if inputfile is not also described |
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stardard input is used as input file. |
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Options |
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-reverse |
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convert ascii with \udddd notation to native encoding |
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-encoding encoding_name |
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Specify the encoding name which is used by conversion. |
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8859_[1 - 9], JIS, EUCJIS, SJIS is currently supported. |
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Default encoding is taken from System property "file.encoding". |
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*/ |
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package sun.tools.native2ascii; |
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import java.io.*; |
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import java.util.*; |
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import java.text.MessageFormat; |
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import java.nio.charset.CharsetEncoder; |
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import java.nio.charset.Charset; |
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import java.nio.charset.IllegalCharsetNameException; |
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import java.io.UnsupportedEncodingException; |
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import java.nio.charset.UnsupportedCharsetException; |
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import sun.tools.native2ascii.A2NFilter; |
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import sun.tools.native2ascii.N2AFilter; |
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/** |
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* Main program of the native2ascii |
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*/ |
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public class Main { |
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String inputFileName = null; |
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String outputFileName = null; |
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File tempFile = null; |
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boolean reverse = false; |
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static String encodingString = null; |
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static String defaultEncoding = null; |
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static CharsetEncoder encoder = null; |
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/** |
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* Run the converter |
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*/ |
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public synchronized boolean convert(String argv[]){ |
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List<String> v = new ArrayList<>(2); |
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File outputFile = null; |
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boolean createOutputFile = false; |
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// Parse arguments |
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for (int i = 0; i < argv.length; i++) { |
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if (argv[i].equals("-encoding")) { |
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if ((i + 1) < argv.length){ |
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encodingString = argv[++i]; |
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} else { |
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error(getMsg("err.bad.arg")); |
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usage(); |
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return false; |
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} |
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} else if (argv[i].equals("-reverse")){ |
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reverse = true; |
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} else { |
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if (v.size() > 1) { |
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usage(); |
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return false; |
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} |
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v.add(argv[i]); |
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} |
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} |
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if (encodingString == null) |
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defaultEncoding = Charset.defaultCharset().name(); |
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char[] lineBreak = System.getProperty("line.separator").toCharArray(); |
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try { |
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initializeConverter(); |
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if (v.size() == 1) |
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inputFileName = v.get(0); |
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if (v.size() == 2) { |
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inputFileName = v.get(0); |
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outputFileName = v.get(1); |
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createOutputFile = true; |
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} |
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if (createOutputFile) { |
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outputFile = new File(outputFileName); |
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if (outputFile.exists() && !outputFile.canWrite()) { |
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throw new Exception(formatMsg("err.cannot.write", outputFileName)); |
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} |
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} |
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if (reverse){ |
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BufferedReader reader = getA2NInput(inputFileName); |
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Writer osw = getA2NOutput(outputFileName); |
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String line; |
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while ((line = reader.readLine()) != null) { |
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osw.write(line.toCharArray()); |
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osw.write(lineBreak); |
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if (outputFileName == null) { // flush stdout |
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osw.flush(); |
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} |
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} |
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reader.close(); // Close the stream. |
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osw.close(); |
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} else { |
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//N2A |
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String inLine; |
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BufferedReader in = getN2AInput(inputFileName); |
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BufferedWriter out = getN2AOutput(outputFileName); |
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while ((inLine = in.readLine()) != null) { |
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out.write(inLine.toCharArray()); |
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out.write(lineBreak); |
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if (outputFileName == null) { // flush stdout |
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out.flush(); |
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} |
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} |
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out.close(); |
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} |
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// Since we are done rename temporary file to desired output file |
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if (createOutputFile) { |
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if (outputFile.exists()) { |
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// Some win32 platforms can't handle atomic |
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// rename if source and target file paths are |
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// identical. To make things simple we just unconditionally |
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// delete the target file before calling renameTo() |
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outputFile.delete(); |
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} |
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tempFile.renameTo(outputFile); |
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} |
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} catch(Exception e){ |
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error(e.toString()); |
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return false; |
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} |
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return true; |
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} |
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private void error(String msg){ |
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System.out.println(msg); |
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} |
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private void usage(){ |
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System.out.println(getMsg("usage")); |
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} |
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private BufferedReader getN2AInput(String inFile) throws Exception { |
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InputStream forwardIn; |
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if (inFile == null) |
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forwardIn = System.in; |
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else { |
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File f = new File(inFile); |
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if (!f.canRead()){ |
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throw new Exception(formatMsg("err.cannot.read", f.getName())); |
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} |
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try { |
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forwardIn = new FileInputStream(inFile); |
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} catch (IOException e) { |
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throw new Exception(formatMsg("err.cannot.read", f.getName())); |
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} |
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} |
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BufferedReader r = (encodingString != null) ? |
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new BufferedReader(new InputStreamReader(forwardIn, |
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encodingString)) : |
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new BufferedReader(new InputStreamReader(forwardIn)); |
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return r; |
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} |
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private BufferedWriter getN2AOutput(String outFile) throws Exception { |
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Writer output; |
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BufferedWriter n2aOut; |
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if (outFile == null) |
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output = new OutputStreamWriter(System.out,"US-ASCII"); |
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else { |
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File f = new File(outFile); |
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File tempDir = f.getParentFile(); |
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if (tempDir == null) |
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tempDir = new File(System.getProperty("user.dir")); |
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tempFile = File.createTempFile("_N2A", |
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".TMP", |
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tempDir); |
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tempFile.deleteOnExit(); |
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try { |
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output = new FileWriter(tempFile); |
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} catch (IOException e){ |
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throw new Exception(formatMsg("err.cannot.write", tempFile.getName())); |
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} |
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} |
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n2aOut = new BufferedWriter(new N2AFilter(output)); |
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return n2aOut; |
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} |
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private BufferedReader getA2NInput(String inFile) throws Exception { |
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Reader in; |
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BufferedReader reader; |
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if (inFile == null) |
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in = new InputStreamReader(System.in, "US-ASCII"); |
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else { |
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File f = new File(inFile); |
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if (!f.canRead()){ |
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throw new Exception(formatMsg("err.cannot.read", f.getName())); |
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} |
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try { |
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in = new FileReader(inFile); |
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} catch (Exception e) { |
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throw new Exception(formatMsg("err.cannot.read", f.getName())); |
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} |
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} |
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reader = new BufferedReader(new A2NFilter(in)); |
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return reader; |
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} |
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private Writer getA2NOutput(String outFile) throws Exception { |
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OutputStreamWriter w = null; |
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OutputStream output = null; |
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if (outFile == null) |
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output = System.out; |
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else { |
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File f = new File(outFile); |
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File tempDir = f.getParentFile(); |
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if (tempDir == null) |
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tempDir = new File(System.getProperty("user.dir")); |
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tempFile = File.createTempFile("_N2A", |
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".TMP", |
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tempDir); |
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tempFile.deleteOnExit(); |
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try { |
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output = new FileOutputStream(tempFile); |
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} catch (IOException e){ |
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throw new Exception(formatMsg("err.cannot.write", tempFile.getName())); |
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} |
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} |
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w = (encodingString != null) ? |
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new OutputStreamWriter(output, encodingString) : |
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new OutputStreamWriter(output); |
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return (w); |
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} |
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private static Charset lookupCharset(String csName) { |
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if (Charset.isSupported(csName)) { |
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try { |
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return Charset.forName(csName); |
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} catch (UnsupportedCharsetException x) { |
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throw new Error(x); |
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} |
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} |
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return null; |
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} |
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public static boolean canConvert(char ch) { |
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return (encoder != null && encoder.canEncode(ch)); |
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} |
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private static void initializeConverter() throws UnsupportedEncodingException { |
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Charset cs = null; |
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try { |
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cs = (encodingString == null) ? |
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lookupCharset(defaultEncoding): |
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lookupCharset(encodingString); |
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||
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encoder = (cs != null) ? |
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cs.newEncoder() : |
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null; |
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} catch (IllegalCharsetNameException e) { |
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throw new Error(e); |
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} |
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} |
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||
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private static ResourceBundle rsrc; |
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static { |
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try { |
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rsrc = ResourceBundle.getBundle( |
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"sun.tools.native2ascii.resources.MsgNative2ascii"); |
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} catch (MissingResourceException e) { |
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throw new Error("Missing message file."); |
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} |
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} |
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private String getMsg(String key) { |
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try { |
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return (rsrc.getString(key)); |
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} catch (MissingResourceException e) { |
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throw new Error("Error in message file format."); |
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} |
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} |
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||
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private String formatMsg(String key, String arg) { |
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String msg = getMsg(key); |
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8560
f2abd715d39b
7021987: native2ascii "file cannot be read" error message is broken
alanb
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diff
changeset
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return MessageFormat.format(msg, arg); |
2 | 367 |
} |
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/** |
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371 |
* Main program |
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372 |
*/ |
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373 |
public static void main(String argv[]){ |
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Main converter = new Main(); |
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375 |
System.exit(converter.convert(argv) ? 0 : 1); |
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} |
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} |