Fan.Sys.Uri.Encoder.encode C# (CSharp) Method

            internal StringBuilder encode(string s, int section)
            {
                if (!encoding) return buf.Append(s);

                int len = s.Length;
                int c = 0, prev;
                for (int i=0; i<len; ++i)
                {
                  prev = c;
                  c = s[i];

                  // unreserved character
                  if (c < 128 && (charMap[c] & section) != 0 && prev != '\\')
                  {
                buf.Append((char)c);
                continue;
                  }

                  // the backslash esc itself doesn't get encoded
                  if (c == '\\' && prev != '\\') continue;

                  // we have a reserved, escaped, or non-ASCII

                  // encode
                  if (c == ' ' && section == QUERY)
                buf.Append('+');
                  else
                percentEncodeChar(buf, c);

                  // if we just encoded backslash, then it
                  // doesn't escape the next char
                  if (c == '\\') c = 0;
                }
                return buf;
            }