/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.internal;
import java.io.UnsupportedEncodingException;
/**
* This class implements the conversions between unicode characters
* and the <em>platform supported</em> representation for characters.
* <p>
* Note that, unicode characters which can not be found in the platform
* encoding will be converted to an arbitrary platform specific character.
* </p>
*/
public final class Converter {
public static final byte [] NullByteArray = new byte [1];
public static final byte [] EmptyByteArray = new byte [0];
public static final char [] EmptyCharArray = new char [0];
/**
* Returns the default code page for the platform where the
* application is currently running.
*
* @return the default code page
*/
public static String defaultCodePage () {
return "UTF8";
}
public static char [] mbcsToWcs (String codePage, byte [] buffer) {
try {
return new String (buffer, defaultCodePage ()).toCharArray ();
} catch (UnsupportedEncodingException e) {
return EmptyCharArray;
}
}
public static byte [] wcsToMbcs (String codePage, String string, boolean terminate) {
try {
if (!terminate) return string.getBytes (defaultCodePage ());
byte [] buffer1 = string.getBytes (defaultCodePage ());
byte [] buffer2 = new byte [buffer1.length + 1];
System.arraycopy (buffer1, 0, buffer2, 0, buffer1.length);
return buffer2;
} catch (UnsupportedEncodingException e) {
return terminate ? NullByteArray : EmptyByteArray;
}
}
public static byte [] wcsToMbcs (String codePage, char [] buffer, boolean terminate) {
try {
if (!terminate) return new String (buffer).getBytes (defaultCodePage ());
byte [] buffer1 = new String (buffer).getBytes (defaultCodePage ());
byte [] buffer2 = new byte [buffer1.length + 1];
System.arraycopy (buffer1, 0, buffer2, 0, buffer1.length);
return buffer2;
} catch (UnsupportedEncodingException e) {
return terminate ? NullByteArray : EmptyByteArray;
}
}
}