# UniUtil.java

    /*
     * Copyright 2015 The Apache Software Foundation.
     *
     * 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 org.apache.pdfbox.pdmodel.font;

    import java.util.Locale;

    /**
     * Utility class for Unicode fallback.
     *
     * @author Philip Helger
     */
    final class UniUtil
    {
        private UniUtil()
        {
        }

        // faster than String.format("uni%04X", codePoint)
        static String getUniNameOfCodePoint(int codePoint)
        {
            String hex = Integer.toString(codePoint, 16).toUpperCase(Locale.US);
            switch (hex.length())
            {
                case 1:
                    return "uni000" + hex;
                case 2:
                    return "uni00" + hex;
                case 3:
                    return "uni0" + hex;
                default:
                    return "uni" + hex;
            }
        }
    }