Method LoadFilterFile

Src/FileFilterMgr.cpp:170–296

* @brief Parse a filter file, and add it to array if valid. * * @param [in] szFilePath Path (w/ filename) to file to load. * @param [out] error Error-code if loading failed (returned `nullptr`). * @return Pointer to new filter, or `nullptr` if error (check error code too). */

 * @return Pointer to new filter, or `nullptr` if error (check error code too).
 */
FileFilter * FileFilterMgr::LoadFilterFile(const String& szFilepath, int & error)
{
	UniMemFile file;
	if (!file.OpenReadOnly(szFilepath))
	{
		error = FILTER_ERROR_FILEACCESS;
		return nullptr;
	}

	file.ReadBom(); // in case it is a Unicode file, let UniMemFile handle BOM
	if (!file.IsUnicode() && !ucr::CheckForInvalidUtf8(
		reinterpret_cast<const char*>(file.GetBase()), static_cast<size_t>(file.GetFileSize())))
		file.SetUnicoding(ucr::UTF8);

	String fileName;
	paths::SplitFilename(szFilepath, nullptr, &fileName, nullptr);
	FileFilter *pfilter = new FileFilter;
	pfilter->fullpath = szFilepath;
	pfilter->name = std::move(fileName); // Filename is the default name

	String sLine;
	bool lossy = false;
	bool bLinesLeft = true;
	int lineNumber = 0;
	do
	{
		// Returns false when last line is read
		String tmpLine;
		bLinesLeft = file.ReadString(tmpLine, &lossy);
		sLine = std::move(tmpLine);
		sLine = strutils::trim_ws(sLine);

		if (0 == sLine.compare(0, 5, _T("name:"), 5))
		{
			// specifies display name
			String str = sLine.substr(5);
			str = strutils::trim_ws_begin(str);
			if (!str.empty())
				pfilter->name = std::move(str);
		}
		else if (0 == sLine.compare(0, 5, _T("desc:"), 5))
		{
			// specifies display name
			String str = sLine.substr(5);
			str = strutils::trim_ws_begin(str);
			if (!str.empty())
				pfilter->description = std::move(str);
		}
		else if (0 == sLine.compare(0, 4, _T("def:"), 4))
		{
			// specifies default
			String str = sLine.substr(4);
			str = strutils::trim_ws_begin(str);
			if (str == _T("0") || str == _T("no") || str == _T("exclude"))
				pfilter->default_include = false;
			else if (str == _T("1") || str == _T("yes") || str == _T("include"))
				pfilter->default_include = true;
		}