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Java port of Oniguruma: http://www.geocities.jp/kosako3/oniguruma that uses byte arrays directly instead of java Strings and chars

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/*
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package io.airlift.jcodings.specific;

import io.airlift.jcodings.Config;

public final class Windows_31JEncoding extends BaseSJISEncoding {
    protected Windows_31JEncoding() {
        super("Windows-31J", SJISEncoding.SjisTrans);
    }

    @Override
    public String getCharsetName() {
        return "Windows-31J";
    }

    @Override
    public int length(byte[]bytes, int p, int end) {
        if (Config.VANILLA) {
            return length(bytes[p]);
        } else {
            return safeLengthForUptoTwo(bytes, p, end);
        }
    }

    public static final Windows_31JEncoding INSTANCE = new Windows_31JEncoding();
}