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/*
* Copyright (C) 2013-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include <string>
class CUtf8Utils
{
public:
enum utf8CheckResult
{
plainAscii = -1, // only US-ASCII characters (valid for UTF-8 too)
hiAscii = 0, // non-UTF-8 sequence with high ASCII characters
// (possible single-byte national encoding like WINDOWS-1251, multi-byte encoding like UTF-32 or invalid UTF-8)
utf8string = 1 // valid UTF-8 sequences, but not US-ASCII only
};
/**
* Check given string for valid UTF-8 sequences
* @param str string to check
* @return result of check, "plainAscii" for empty string
*/
static utf8CheckResult checkStrForUtf8(const std::string& str);
static inline bool isValidUtf8(const std::string& str)
{
return checkStrForUtf8(str) != hiAscii;
}
static size_t FindValidUtf8Char(const std::string& str, const size_t startPos = 0);
static size_t RFindValidUtf8Char(const std::string& str, const size_t startPos);
static size_t SizeOfUtf8Char(const std::string& str, const size_t charStart = 0);
private:
static size_t SizeOfUtf8Char(const char* const str);
};
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