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path: root/luni/src/main/native/libcore_icu_NativeNormalizer.cpp
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/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * 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.
 */

#define LOG_TAG "NativeNormalizer"

#include "IcuUtilities.h"
#include "JNIHelp.h"
#include "JniConstants.h"
#include "JniException.h"
#include "ScopedJavaUnicodeString.h"
#include "unicode/normlzr.h"

static jstring NativeNormalizer_normalizeImpl(JNIEnv* env, jclass, jstring s, jint intMode) {
  ScopedJavaUnicodeString src(env, s);
  if (!src.valid()) {
    return NULL;
  }
  UNormalizationMode mode = static_cast<UNormalizationMode>(intMode);
  UErrorCode status = U_ZERO_ERROR;
  UnicodeString dst;
  Normalizer::normalize(src.unicodeString(), mode, 0, dst, status);
  maybeThrowIcuException(env, "Normalizer::normalize", status);
  return dst.isBogus() ? NULL : env->NewString(dst.getBuffer(), dst.length());
}

static jboolean NativeNormalizer_isNormalizedImpl(JNIEnv* env, jclass, jstring s, jint intMode) {
  ScopedJavaUnicodeString src(env, s);
  if (!src.valid()) {
    return JNI_FALSE;
  }
  UNormalizationMode mode = static_cast<UNormalizationMode>(intMode);
  UErrorCode status = U_ZERO_ERROR;
  UBool result = Normalizer::isNormalized(src.unicodeString(), mode, status);
  maybeThrowIcuException(env, "Normalizer::isNormalized", status);
  return result;
}

static JNINativeMethod gMethods[] = {
  NATIVE_METHOD(NativeNormalizer, normalizeImpl, "(Ljava/lang/String;I)Ljava/lang/String;"),
  NATIVE_METHOD(NativeNormalizer, isNormalizedImpl, "(Ljava/lang/String;I)Z"),
};
void register_libcore_icu_NativeNormalizer(JNIEnv* env) {
  jniRegisterNativeMethods(env, "libcore/icu/NativeNormalizer", gMethods, NELEM(gMethods));
}