blob: 2bba1984a8ce8085dc03be43baf77f1c6017d33e [file] [log] [blame]
/*
* Copyright (C) 2017 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 AAPT_TEXT_UTF8ITERATOR_H
#define AAPT_TEXT_UTF8ITERATOR_H
#include "android-base/macros.h"
#include "androidfw/StringPiece.h"
namespace aapt {
namespace text {
class Utf8Iterator {
public:
explicit Utf8Iterator(android::StringPiece str);
bool HasNext() const;
// Returns the current position of the iterator in bytes of the source UTF8 string.
// This position is the start of the codepoint returned by the next call to Next().
size_t Position() const;
void Skip(int amount);
char32_t Next();
private:
DISALLOW_COPY_AND_ASSIGN(Utf8Iterator);
void DoNext();
android::StringPiece str_;
size_t current_pos_;
size_t next_pos_;
char32_t current_codepoint_;
};
} // namespace text
} // namespace aapt
#endif // AAPT_TEXT_UTF8ITERATOR_H