Tiny_httpd_core.UtilEncode the string into a valid path following https://tools.ietf.org/html/rfc3986#section-2.1
Inverse operation of percent_encode. Can fail since some strings are not valid percent encodings.
val parse_query : string -> ((string * string) list, string) resultParse a query as a list of '&' or ';' separated key=value pairs. The order might not be preserved.
val show_sockaddr : Unix.sockaddr -> stringSimple printer for socket addresses.