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///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename:  ConvTableAsciiMap.java
//
// The source code contained herein is licensed under the IBM Public License
// Version 1.0, which has been approved by the Open Source Initiative.
// Copyright (C) 1997-2004 International Business Machines Corporation and
// others.  All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////

package com.ibm.as400.access;

/** This is the parent class for all ConvTableXXX classes that represent single-byte ASCII ccsids.
 * 
 */
public abstract class ConvTableAsciiMap extends ConvTable
{
    private static final String copyright = "Copyright (C) 1997-2004 International Business Machines Corporation and others.";

    public char[] toUnicode_ = null;
    public byte[] fromUnicode_ = null;

    // Constructor.
    ConvTableAsciiMap(int ccsid, char[] toUnicode, char[] fromUnicode)
    {
        super(ccsid);
        ccsid_ = ccsid;
        toUnicode_ = toUnicode;
        if (Trace.traceConversion_) Trace.log(Trace.CONVERSION, "Decompressing single-byte ASCII conversion table for ccsid: " + ccsid_, fromUnicode.length);
        fromUnicode_ = decompressSB(fromUnicode, (byte)0x1A);
        if (Trace.traceConversion_) Trace.log(Trace.CONVERSION, "Successfully loaded single-byte ASCII map for ccsid: " + ccsid_);
    }

    // Perform an OS/400 CCSID to Unicode conversion.
    final String byteArrayToString(byte[] buf, int offset, int length, BidiConversionProperties properties)
    {
        if (Trace.traceConversion_) Trace.log(Trace.CONVERSION, "Converting byte array to string for ccsid: " + ccsid_, buf, offset, length);
        char[] dest = new char[length];
        // The 0x00FF is so we don't get any negative indices.
        for (int i=0; i