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      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 #define LOG_TAG "NativeNormalizer"
     18 
     19 #include "JNIHelp.h"
     20 #include "JniConstants.h"
     21 #include "JniException.h"
     22 #include "ScopedJavaUnicodeString.h"
     23 #include "unicode/normlzr.h"
     24 
     25 static jstring NativeNormalizer_normalizeImpl(JNIEnv* env, jclass, jstring s, jint intMode) {
     26     ScopedJavaUnicodeString src(env, s);
     27     UNormalizationMode mode = static_cast<UNormalizationMode>(intMode);
     28     UErrorCode status = U_ZERO_ERROR;
     29     UnicodeString dst;
     30     Normalizer::normalize(src.unicodeString(), mode, 0, dst, status);
     31     maybeThrowIcuException(env, status);
     32     return dst.isBogus() ? NULL : env->NewString(dst.getBuffer(), dst.length());
     33 }
     34 
     35 static jboolean NativeNormalizer_isNormalizedImpl(JNIEnv* env, jclass, jstring s, jint intMode) {
     36     ScopedJavaUnicodeString src(env, s);
     37     UNormalizationMode mode = static_cast<UNormalizationMode>(intMode);
     38     UErrorCode status = U_ZERO_ERROR;
     39     UBool result = Normalizer::isNormalized(src.unicodeString(), mode, status);
     40     maybeThrowIcuException(env, status);
     41     return result;
     42 }
     43 
     44 static JNINativeMethod gMethods[] = {
     45     NATIVE_METHOD(NativeNormalizer, normalizeImpl, "(Ljava/lang/String;I)Ljava/lang/String;"),
     46     NATIVE_METHOD(NativeNormalizer, isNormalizedImpl, "(Ljava/lang/String;I)Z"),
     47 };
     48 int register_libcore_icu_NativeNormalizer(JNIEnv* env) {
     49     return jniRegisterNativeMethods(env, "libcore/icu/NativeNormalizer", gMethods, NELEM(gMethods));
     50 }
     51