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/* 
 * Copyright (C) 2002-2015 XimpleWare, [email protected]
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
/*VTD-XML is protected by US patent 7133857, 7260652, an 7761459*/
/*All licenses to any parties in litigation with XimpleWare have been expressly terminated. No new license, and no renewal of any revoked license, 
 * is granted to those parties as a result of re-downloading software from this or any other website*/
package com.ximpleware.transcode;

import java.io.IOException;
import java.io.OutputStream;

import com.ximpleware.TranscodeException;

public class ISO8859_1Coder {
    public static int getLen(int ch) throws TranscodeException{
        if (ch>255)
            throw new TranscodeException("Invalid UCS char for ASCII format");
        return 1;
    }
    
    public static long decode(byte[] input, int offset ){
        long l = input[offset] & 0xff;
        return (((long)(offset+1))<<32) | l ;
    }
    
    /**
     * 
     * @param output
     * @param offset
     * @param ch
     * @return
     *
     */
    public static int encode(byte[] output, int offset, int ch ){
        output[offset] = (byte) ch;
        return offset+1;
    }
    
    /**
     * Write the iso-8859-1 representation of ch into outputstrem
     * @param os
     * @param offset
     * @param ch
     * @throws IOException
     * @throws TranscodeException
     *
     */
    public static final void encodeAndWrite(OutputStream os, int ch)
    throws IOException, TranscodeException {
        if (ch>255)
            throw new TranscodeException("Invalid UCS char for ISO-8859-1 format");
        os.write(ch);
    }
}