Crisis.Ionic.Zip.ZipEntry.NormalizeFileName C# (CSharp) Method

        private string NormalizeFileName()
        {
            // here, we need to flip the backslashes to forward-slashes,
            // also, we need to trim the \\server\share syntax from any UNC path.
            // and finally, we need to remove any leading .\

            string SlashFixed = FileName.Replace("\\", "/");
            string s1 = null;
            if ((_TrimVolumeFromFullyQualifiedPaths) && (FileName.Length >= 3)
                && (FileName[1] == ':') && (SlashFixed[2] == '/'))
            {
                // trim off volume letter, colon, and slash
                s1 = SlashFixed.Substring(3);
            }
            else if ((FileName.Length >= 4)
                     && ((SlashFixed[0] == '/') && (SlashFixed[1] == '/')))
            {
                int n = SlashFixed.IndexOf('/', 2);
                if (n == -1)
                    throw new ArgumentException("The path for that entry appears to be badly formatted");
                s1 = SlashFixed.Substring(n + 1);
            }
            else if ((FileName.Length >= 3)
                     && ((SlashFixed[0] == '.') && (SlashFixed[1] == '/')))
            {
                // trim off dot and slash
                s1 = SlashFixed.Substring(2);
            }
            else
            {
                s1 = SlashFixed;
            }
            return s1;
        }