using System.Text; namespace Tesses.YouTubeDownloader.Tools.Common { public static class StringUtils { public static string GetSafeFileName(this string filename) { StringBuilder b=new StringBuilder(filename); foreach(var badChr in "\\\"\'/?*<>|:") { b.Replace(badChr.ToString(),""); } if(b.Length == 0) return "file"; return b.ToString(); } } }