class TUrl: public TObject

 Parse url character string and split in its different subcomponents.
 Use IsValid() to check if URL is legal.

 url: [proto://][user[:passwd]@]host[:port]/file.ext[?options][#anchor]

 Known protocols: http, root, proof, ftp, news and any special protocols
 defined in the rootrc Url.Special key.
 The default protocol is "http", unless defaultIsFile is true in which
 case the url is assumed to be of type "file".
 If a passwd contains a @ it must be escaped by a \\, e.g.
 "pip@" becomes "pip\\@".

 Default ports: http=80, root=1094, proof=1093, ftp=20, news=119.
 Port #1093 has been assigned by IANA (www.iana.org) to proofd.
 Port #1094 has been assigned by IANA (www.iana.org) to rootd.

 Cleanup.

 Parse url character string and split in its different subcomponents.
 Use IsValid() to check if URL is legal.

 url: [proto://][user[:passwd]@]host[:port]/file.ext[?options][#anchor]

 Known protocols: http, root, proof, ftp, news and any special protocols
 defined in the rootrc Url.Special key.
 The default protocol is "http", unless defaultIsFile is true in which
 case the url is assumed to be of type "file".
 If a passwd contains a @ it must be escaped by a \\, e.g.
 "pip@" becomes "pip\\@".

 Default ports: http=80, root=1094, proof=1093, ftp=20, news=119.
 Port #1093 has been assigned by IANA (www.iana.org) to proofd.
 Port #1094 has been assigned by IANA (www.iana.org) to rootd.

 Find file and optionally anchor and options.

 TUrl copy ctor.

 TUrl assignment operator.

 Return full URL. If withDflt is kTRUE, explicitly add the port even
 if it matches the default value for the URL protocol.

 Return fully qualified domain name of url host. If host cannot be
 resolved or not valid return the host name as originally specified.

 Return the file and its options (the string specified behind the ?).
 Convenience function useful when the option is used to pass
 authetication/access information for the specified file.

 Set protocol and, optionally, change the port accordingly.

 Compare two urls as strings.

 Print URL on stdout.

 Read the list of special protocols from the rootrc files.
 These protocols will be parsed in a protocol and a file part,
 no host or other info will be determined. This is typically
 used for legacy file descriptions like: rfio:host:/path/file.root.

 Parse URL options into a key/value map.

 Return a value for a given key from the URL options.
 Returns 0 in case key is not found.

 Return a value for a given key from the URL options as an Int_t,
 a missing key returns -1.

 Returns true if the given key appears in the URL options list.

 Recompute the path removing all relative directory jumps via '..'.