UnityEditor.SearchUtility.ParseSearchString C# (CSharp) Method

        internal static bool ParseSearchString(string searchText, SearchFilter filter)
        {
            if (string.IsNullOrEmpty(searchText))
            {
                return false;
            }
            filter.ClearSearch();
            string searchString = string.Copy(searchText);
            RemoveUnwantedWhitespaces(ref searchString);
            bool flag2 = false;
            int startIndex = FindFirstPositionNotOf(searchString, " \t,*?");
            if (startIndex == -1)
            {
                startIndex = 0;
            }
            while (startIndex < searchString.Length)
            {
                int length = searchString.IndexOfAny(" \t,*?".ToCharArray(), startIndex);
                int index = searchString.IndexOf('"', startIndex);
                int num4 = -1;
                if (index != -1)
                {
                    num4 = searchString.IndexOf('"', index + 1);
                    if (num4 != -1)
                    {
                        length = searchString.IndexOfAny(" \t,*?".ToCharArray(), num4);
                    }
                    else
                    {
                        length = -1;
                    }
                }
                if (length == -1)
                {
                    length = searchString.Length;
                }
                if (length > startIndex)
                {
                    string str2 = searchString.Substring(startIndex, length - startIndex);
                    if (CheckForKeyWords(str2, filter, index, num4))
                    {
                        flag2 = true;
                    }
                    else
                    {
                        filter.nameFilter = filter.nameFilter + (!string.IsNullOrEmpty(filter.nameFilter) ? " " : "") + str2;
                    }
                }
                startIndex = length + 1;
            }
            return flag2;
        }

        internal static SearchFilter CreateSearchFilterFromString(string searchText)
        {
            SearchFilter filter = new SearchFilter();

            SearchUtility.ParseSearchString(searchText, filter);
            return(filter);
        }