To refer to several attributes, the gopher+_string consists of the
   attribute names separated by coded spaces. For example,
   "!+ABSTRACT%20+SMELL" refers to the +ABSTRACT and +SMELL attributes
   of an item.

3.4.8 URL syntax for Gopher+ alternate views

   Gopher+ allows for optional alternate data representations (alternate
   views) of items. To retrieve a Gopher+ alternate view, a Gopher+
   client sends the appropriate view and language identifier (found in
   the item's +VIEW attribute). To refer to a specific Gopher+ alternate
   view, the URL's Gopher+ string would be in the form:





 
RFC 1738            Uniform Resource Locators (URL)        December 1994


        +%20<language_name>

   For example, a Gopher+ string of "+application/postscript%20Es_ES"
   refers to the Spanish language postscript alternate view of a Gopher+
   item.

3.4.9 URL syntax for Gopher+ electronic forms

   The gopher+_string for a URL that refers to an item referenced by a
   Gopher+ electronic form (an ASK block) filled out with specific
   values is a coded version of what the client sends to the server.
   The gopher+_string is of the form:

+%091%0D%0A+-1%0D%0A<ask_item1_value>%0D%0A<ask_item2_value>%0D%0A.%0D%0A

   To retrieve this item, the Gopher client sends:

       <a_gopher_selector>+1
       +-1
       <ask_item1_value>
       <ask_item2_value>
       .

   to the Gopher server.

3.5. MAILTO

   The mailto URL scheme is used to designate the Internet mailing
   address of an individual or service. No additional information other
   than an Internet mailing address is present or implied.

   A mailto URL takes the form:

        mailto:<rfc822-addr-spec>

   where <rfc822-addr-spec> is (the encoding of an) addr-spec, as
   specified in RFC 822 [6]. Within mailto URLs, there are no reserved
   characters.

   Note that the percent sign ("%") is commonly used within RFC 822
   addresses and must be encoded.

   Unlike many URLs, the mailto scheme does not represent a data object
   to be accessed directly; there is no sense in which it designates an
   object. It has a different use than the message/external-body type in
   MIME.






 
RFC 1738            Uniform Resource Locators (URL)        December 1994


3.6. NEWS

   The news URL scheme is used to refer to either news groups or
   individual articles of USENET news, as specified in RFC 1036.

   A news URL takes one of two forms:

     news:<newsgroup-name>
     news:

   A <newsgroup-name> is a period-delimited hierarchical name, such as
   "comp.infosystems.www.misc". A  corresponds to the
   Message-ID of section 2.1.5 of RFC 1036, without the enclosing "<"
   and ">"; it takes the form @<full_domain_name>.  A message
   identifier may be distinguished from a news group name by the
   presence of the commercial at "@" character. No additional characters
   are reserved within the components of a news URL.

   If <newsgroup-name> is "*" (as in ), it is used to refer
   to "all available news groups".

   The news URLs are unusual in that by themselves, they do not contain