/*

 * Copyright (c) 2000, 2005, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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package sun.text;

import sun.text.normalizer.NormalizerBase;

public class CollatorUtilities {

    public static int toLegacyMode(NormalizerBase.Mode mode) {

        // find the index of the legacy mode in the table;

        // if it's not there, default to Collator.NO_DECOMPOSITION (0)

        int legacyMode = legacyModeMap.length;

        while (legacyMode > 0) {

            --legacyMode;

            if (legacyModeMap[legacyMode] == mode) {

                break;

            }

        }

        return legacyMode;

    }

    public static NormalizerBase.Mode toNormalizerMode(int mode) {

        NormalizerBase.Mode normalizerMode;

        try {

            normalizerMode = legacyModeMap[mode];

        }

        catch(ArrayIndexOutOfBoundsException e) {

            normalizerMode = NormalizerBase.NONE;

        }

        return normalizerMode;

    }

    static NormalizerBase.Mode[] legacyModeMap = {

        NormalizerBase.NONE,   // Collator.NO_DECOMPOSITION

        NormalizerBase.NFD,    // Collator.CANONICAL_DECOMPOSITION

        NormalizerBase.NFKD,   // Collator.FULL_DECOMPOSITION

    };

}