1 /* 2 * Copyright (C) 2018 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 #include "lang_id/common/utf8.h" 18 19 namespace libtextclassifier3 { 20 namespace mobile { 21 namespace utils { 22 23 const char *GetSafeEndOfUtf8String(const char *data, size_t size) { 24 const char *const hard_end = data + size; 25 const char *curr = data; 26 while (curr < hard_end && *curr) { 27 int num_bytes = utils::OneCharLen(curr); 28 const char *new_curr = curr + num_bytes; 29 if (new_curr > hard_end) { 30 return curr; 31 } 32 curr = new_curr; 33 } 34 return curr; 35 } 36 37 } // namespace utils 38 } // namespace mobile 39 } // namespace nlp_saft 40
