mirror of https://github.com/procxx/kepka.git
				
				
				
			
		
			
				
	
	
		
			81 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			81 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C++
		
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#include <QtCore/QString>
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#include "codegen/common/clean_file.h"
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namespace codegen {
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namespace common {
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// Wrapper allows you to read forward the CleanFile without overflow checks.
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class CleanFileReader {
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public:
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	explicit CleanFileReader(const QString &filepath) : file_(filepath) {
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	}
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	explicit CleanFileReader(const QByteArray &content, const QString &filepath = QString()) : file_(content, filepath) {
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	}
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	bool read() {
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		if (!file_.read()) {
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			return false;
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		}
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		pos_ = file_.data();
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		end_ = file_.end();
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		return true;
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	}
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	bool atEnd() const {
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		return (pos_ == end_);
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	}
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	char currentChar() const {
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		return atEnd() ? 0 : *pos_;
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	}
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	bool skipChar() {
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		if (atEnd()) {
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			return false;
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		}
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		++pos_;
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		return true;
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	}
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	const char *currentPtr() const {
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		return pos_;
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	}
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	int charsLeft() const {
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		return (end_ - pos_);
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	}
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	// Log error to std::cerr with 'code' at line number 'line' in data().
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	LogStream logError(int code, int line) const {
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		return std::forward<LogStream>(file_.logError(code, line));
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	}
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private:
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	CleanFile file_;
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	const char *pos_ = nullptr;
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	const char *end_ = nullptr;
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};
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} // namespace common
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} // namespace codegen
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