Topic Path: Symbol Reference > Classes > TIdDICT Class
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TIdDICT Class

Implements a client for the Dictionary Server Protocol.

File
TIdDICT = class(TIdTCPClient);

TIdDICT is a TIdTCPClient descendant that implements a client for the Dictionary Server Protocol, as described in the Internet Standards document: 

RFC 2229 - A Dictionary Server Protocol  

The DICT protocol is designed to provide access to multiple databases. Word definitions can be requested, the word index can be searched (using an easily extended set of algorithms), information about the server can be provided (e.g., which index search strategies are supported, or which databases are available), and information about a database can be provided (e.g., copyright, citation, or distribution information). Further, the DICT protocol has hooks that can be used to restrict access to some or all of the databases available on a DICT server. 

TIdDICT provides properties and methods needed to implement the following DICT commands: 

 

AUTH 
CLIENT 
DEFINE 
HELP 
MATCH 
OPTION MIME 
QUIT 
SASLAUTH 
SHOW DB 
SHOW INFO 
SHOW SERVER 
SHOW STRAT 
STATUS 

 

Summary of Response Codes

 

Below is a summary of response codes used in the DICT protocol. (x) in the first column indicates the response has defined arguments that must be provided. 

 

Rsp 
Meaning 
110 
n databases present - text follows 
111 
n strategies available - text follows 
 
112 
database information follows 
 
113 
help text follows 
 
114 
server information follows 
 
130 
challenge follows 
150 
n definitions retrieved - definitions follow 
151 
word database name - text follows 
152 
n matches found - text follows 
 
210 
(optional timing and statistical information here) 
220 
text msg-id 
 
221 
Closing Connection 
 
230 
Authentication successful 
 
250 
ok (optional timing information here) 
 
330 
send response 
 
420 
Server temporarily unavailable 
 
421 
Server shutting down at operator request 
 
500 
Syntax error, command not recognized 
 
501 
Syntax error, illegal parameters 
 
502 
Command not implemented 
 
503 
Command parameter not implemented 
 
530 
Access denied 
 
531 
Access denied, use "SHOW INFO" for server information 
 
532 
Access denied, unknown mechanism 
 
550 
Invalid database, use "SHOW DB" for list of databases 
 
551 
Invalid strategy, use "SHOW STRAT" for a list of strategies 
 
552 
No match 
 
554 
No databases present 
 
555 
No strategies available 
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