Method RemoveRelativePath

Engine/source/EtCore/FileSystem/FileUtil.cpp:306–357

--------------------------------- FileUtil::GetAbsolutePath Gets the absolute path relative to the executable - returns false if none where found

// Gets the absolute path relative to the executable - returns false if none where found
//
bool FileUtil::RemoveRelativePath(std::string& path)
{
	// get the first '/.' sequence
	size_t closestIdx = std::numeric_limits<size_t>::max();
	for (char const token : pathDelimiters)
	{
		size_t index = path.find(std::string(1, token) + std::string("."));
		if (index != std::string::npos && index < closestIdx)
		{
			closestIdx = index;
		}
	}

	// if none is found our work is done
	if (closestIdx > path.size())
	{
		return false;
	}

	// otherwise we check if we are referring to this directory or the parent directory
	size_t preCut = closestIdx;
	size_t postCut = closestIdx + 1;
	if (closestIdx + 2 < path.size() && path[closestIdx + 2] == '.')
	{
		// we have a parentDir
		postCut++;

		// find the index of the previous ("parent") delim
		size_t lastDelim = 0u;
		for (char const token : pathDelimiters)
		{
			size_t index = path.rfind(token, preCut - 1);
			if (index != std::string::npos && index > lastDelim)
			{
				lastDelim = index;
			}
		}

		// Check we found a parent directory
		if (lastDelim == 0u || lastDelim >= preCut - 1)
		{
			LOG("FileUtil::RemoveRelativePath > expected to find a parent directory to cut", LogLevel::Error);
			return false;
		}

		preCut = lastDelim;
	}

	path = path.substr(0, preCut) + path.substr(postCut + 1);

	return true;
}

//---------------------------------
// FileUtil::SplitFirstDirectory