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 errorCode = U_FAILURE(status) ? I18nErrorCode::FAILED : errorCode;
34 }
35
~I18nNormalizer()36 I18nNormalizer::~I18nNormalizer()
37 {
38 }
39
Normalize(const char * text,int32_t length,I18nErrorCode & errorCode)40 std::string I18nNormalizer::Normalize(const char *text, int32_t length, I18nErrorCode &errorCode)
41 {
42 UErrorCode status = U_ZERO_ERROR;
43 std::string result;
44 if (text == nullptr) {
45 return result;
46 }
47 icu::UnicodeString input(text, length);
48 if (normalizer == nullptr) {
49 return "";
50 }
51 icu::UnicodeString output = normalizer->normalize(input, status);
52 if (U_FAILURE(status)) {
53 errorCode = I18nErrorCode::FAILED;
54 return "";
55 }
56 output.toUTF8String(result);
57 return result;
58 }
59 } // namespace I18n
60 } // namespace Global
61 } // namespace OHOS