1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package libcore.icu; 18 19 import java.text.Normalizer.Form; 20 21 public final class NativeNormalizer { 22 public static boolean isNormalized(CharSequence src, Form form) { 23 return isNormalizedImpl(src.toString(), toUNormalizationMode(form)); 24 } 25 26 public static String normalize(CharSequence src, Form form) { 27 return normalizeImpl(src.toString(), toUNormalizationMode(form)); 28 } 29 30 private static int toUNormalizationMode(Form form) { 31 // Translates Java enum constants to ICU int constants. 32 // See UNormalizationMode in "unicode/unorm.h". Stable API since ICU 2.0. 33 switch (form) { 34 case NFC: return 4; 35 case NFD: return 2; 36 case NFKC: return 5; 37 case NFKD: return 3; 38 } 39 throw new AssertionError("unknown Normalizer.Form " + form); 40 } 41 42 private static native String normalizeImpl(String src, int form); 43 44 private static native boolean isNormalizedImpl(String src, int form); 45 46 private NativeNormalizer() {} 47 } 48
