Ocamlnet_lite.NetencodingSourceEncoding/Decoding within URLs: * * The following two functions perform the '%'-substitution for * characters that may otherwise be interpreted as metacharacters. * * According to: RFC 1738, RFC 1630 * * Option plus: This option has been added because there are some * implementations that do not map ' ' to '+', for example Javascript's * escape function. The default is true because this is the RFC- * compliant definition.