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/*
 * Copyright (c) 2016-2022 chronicle.software
 *
 *     https://chronicle.software
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.openhft.chronicle.bytes.internal;

import org.jetbrains.annotations.NotNull;

public final class Chars {
    private Chars() { }
    public static final String[] charToString = createCharToString();

    /**
     * Creates a lookup table mapping byte values to their corresponding String representations.
     *
     * @return a lookup table for byte-to-String conversions.
     */
    @NotNull
    public static String[] createCharToString() {
        @NotNull String[] charToString = new String[256];
        charToString[0] = "\u0660";
        for (int i = 1; i < 21; i++)
            charToString[i] = Character.toString((char) (i + 0x2487));
        for (int i = ' '; i < 256; i++)
            charToString[i] = Character.toString((char) i);
        for (int i = 21; i < ' '; i++)
            charToString[i] = "\\u00" + Integer.toHexString(i).toUpperCase();
        for (int i = 0x80; i < 0xA0; i++)
            charToString[i] = "\\u00" + Integer.toHexString(i).toUpperCase();
        return charToString;
    }
}