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ZBD_IIIDL_S_Project/build20241115/DependFile/googlepinyin/utf16reader.h

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+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef PINYINIME_INCLUDE_UTF16READER_H__
+#define PINYINIME_INCLUDE_UTF16READER_H__
+
+#include <stdio.h>
+#include "./utf16char.h"
+
+namespace ime_pinyin {
+
+class Utf16Reader {
+ private:
+  FILE *fp_;
+  char16 *buffer_;
+  size_t buffer_total_len_;
+  size_t buffer_next_pos_;
+
+  // Always less than buffer_total_len_ - buffer_next_pos_
+  size_t buffer_valid_len_;
+
+ public:
+  Utf16Reader();
+  ~Utf16Reader();
+
+  // filename is the name of the file to open.
+  // buffer_len specifies how long buffer should be allocated to speed up the
+  // future reading
+  bool open(const char* filename, size_t buffer_len);
+  char16* readline(char16* read_buf, size_t max_len);
+  bool close();
+};
+}
+
+#endif  // PINYINIME_INCLUDE_UTF16READER_H__