1 /* 2 * Copyright (C) 2009 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 #ifndef PINYINIME_INCLUDE_UTF16READER_H__ 18 #define PINYINIME_INCLUDE_UTF16READER_H__ 19 20 #include <stdio.h> 21 #include "./utf16char.h" 22 23 namespace ime_pinyin { 24 25 class Utf16Reader { 26 private: 27 FILE *fp_; 28 char16 *buffer_; 29 size_t buffer_total_len_; 30 size_t buffer_next_pos_; 31 32 // Always less than buffer_total_len_ - buffer_next_pos_ 33 size_t buffer_valid_len_; 34 35 public: 36 Utf16Reader(); 37 ~Utf16Reader(); 38 39 // filename is the name of the file to open. 40 // buffer_len specifies how long buffer should be allocated to speed up the 41 // future reading 42 bool open(const char* filename, size_t buffer_len); 43 char16* readline(char16* read_buf, size_t max_len); 44 bool close(); 45 }; 46 } 47 48 #endif // PINYINIME_INCLUDE_UTF16READER_H__ 49