Menu Transaction  (Type 1 item)

C: Opens Connection
S: Accepts Connection
C: Sends Selector String
S: Sends Menu Entity

   Connection is closed by either client or server (typically server).


Textfile Entity

TextFile  ::= {TextBlock} Lastline

Note:  Lines beginning with periods must be prepended with an extra
     period to ensure that the transmission is not terminated early.
     The client should strip extra periods at the beginning of the line.


TextFile Transaction (Type 0 item)

C: Opens Connection.
S: Accepts connection
C: Sends Selector String.
S: Sends TextFile Entity.





 
RFC 1436                         Gopher                       March 1993


   Connection is closed by either client or server (typically server).

Note:  The client should be prepared for the server closing the
       connection without sending the Lastline.  This allows the
       client to use fingerd servers.


Full-Text Search Transaction (Type 7 item)

Word      ::= {UNASCII - ' '}
BoolOp ::= 'and' | 'or' | 'not' | SPACE
SearchStr ::= Word {{SPACE BoolOp} SPACE Word}

C: Opens Connection.
C: Sends Selector String, Tab, Search String.
S: Sends Menu Entity.

Note:  In absence of 'and', 'or', or 'not' operators, a SPACE is
       regarded as an implied 'and' operator.  Expression is evaluated
       left to right.  Further, not all search engines or search
       gateways currently implemented have the boolean operators
       implemented.

Binary file Transaction (Type 9 or 5 item)

C: Opens Connection.
S: Accepts connection
C: Sends Selector String.
S: Sends a binary file and closes connection when done.


Syntactic Meaning for Directory Entities


The client should interpret the type field as follows:

0   The item is a TextFile Entity.
    Client should use a TextFile Transaction.

1   The item is a Menu Entity.
    Client should use a Menu Transaction.

2   The information applies to a CSO phone book entity.
    Client should talk CSO protocol.

3   Signals an error condition.

4   Item is a Macintosh file encoded in BINHEX format




 
RFC 1436                         Gopher                       March 1993


5   Item is PC-DOS binary file of some sort.  Client gets to decide.

6   Item is a uuencoded file.

7   The information applies to a Index Server.
    Client should use a FullText Search transaction.

8   The information applies to a Telnet session.
    Connect to given host at given port. The name to login as at this
    host is in the selector string.