1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 #include "i18n_normalizer.h"
16
17 namespace OHOS {
18 namespace Global {
19 namespace I18n {
I18nNormalizer(I18nNormalizerMode mode,I18nErrorCode & errorCode)20 I18nNormalizer::I18nNormalizer(I18nNormalizerMode mode, I18nErrorCode &errorCode)
21 {
22 UErrorCode status = U_ZERO_ERROR;
23 if (mode == I18nNormalizerMode::NFC) {
24 normalizer = icu::Normalizer2::getNFCInstance(status);
25 } else if (mode == I18nNormalizerMode::NFD) {
26 normalizer = icu::Normalizer2::getNFDInstance(status);
27 } else if (mode == I18nNormalizerMode::NFKC) {
28 normalizer = icu::Normalizer2::getNFKCInstance(status);
29 } else {
30 // mode == I18nNormalizerMode::NFKD
31 normalizer = icu::Normalizer2::getNFKDInstance(status);
32 }
33 if (U_FAILURE(status)) {
34 errorCode = I18nErrorCode::FAILED;
35 }
36 }
37
~I18nNormalizer()38 I18nNormalizer::~I18nNormalizer()
39 {
40 }
41
Normalize(const char * text,int32_t length,I18nErrorCode & errorCode)42 std::string I18nNormalizer::Normalize(const char *text, int32_t length, I18nErrorCode &errorCode)
43 {
44 UErrorCode status = U_ZERO_ERROR;
45 std::string result;
46 if (text == nullptr) {
47 return result;
48 }
49 icu::UnicodeString input(text, length);
50 icu::UnicodeString output = normalizer->normalize(input, status);
51 if (U_FAILURE(status)) {
52 errorCode = I18nErrorCode::FAILED;
53 return "";
54 }
55 output.toUTF8String(result);
56 return result;
57 }
58 } // namespace I18n
59 } // namespace Global
60 } // namespace OHOS