Various doc fixes in dictionary.el

* lisp/net/dictionary.el (dictionary-set-server-var)
(dictionary-server, dictionary-port)
(dictionary-default-dictionary)
(dictionary-default-popup-strategy, dictionary-proxy-server)
(dictionary-proxy-port, dictionary-description-open-delimiter)
(dictionary-description-close-delimiter)
(dictionary-window-configuration, dictionary-selected-window)
(dictionary-position-stack, dictionary-data-stack)
(dictionary-positions, dictionary-current-data)
(dictionary-connection, dictionary-instances)
(dictionary-color-support, dictionary-word-history)
(dictionary-mode, dictionary, dictionary-check-connection)
(dictionary-mode-p, dictionary-send-command)
(dictionary-read-reply-and-split, dictionary-check-reply)
(dictionary-check-initial-reply, dictionary-store-state)
(dictionary-store-positions, dictionary-new-search)
(dictionary-new-search-internal, dictionary-do-search)
(dictionary-display-search-result)
(dictionary-display-word-definition)
(dictionary-special-dictionary, dictionary-set-strategy)
(dictionary-tooltip-dictionary, dictionary-switch-tooltip-mode)
(dictionary-tooltip-mode, global-dictionary-tooltip-mode): Doc fixes
to adhere to our conventions.

lisp/net/dictionary.el

@@ -73,8 +73,7 @@ You can specify here:
 - Automatic: First try localhost, then dict.org after confirmation
 - localhost: Only use localhost
 - dict.org: Only use dict.org
-- User-defined: You can specify your own server here
+- User-defined: You can specify your own server here"
-"
   :group 'dictionary
   :set 'dictionary-set-server-var
   :type '(choice (const :tag "Automatic" nil)
@@ -86,7 +85,7 @@ You can specify here:
 (defcustom dictionary-port
   2628
   "The port of the dictionary server.
- This port is propably always 2628 so there should be no need to modify it."
+This port is propably always 2628 so there should be no need to modify it."
   :group 'dictionary
   :set 'dictionary-set-server-var
   :type 'number
@@ -102,8 +101,8 @@ You can specify here:
 (defcustom dictionary-default-dictionary
   "*"
   "The dictionary which is used for searching definitions and matching.
- * and ! have a special meaning, * search all dictionaries, ! search until
+* and ! have a special meaning, * search all dictionaries, ! search until
- one dictionary yields matches."
+one dictionary yields matches."
   :group 'dictionary
   :type 'string
   :version "28.1")
@@ -144,8 +143,7 @@ by the choice value:
 - User choice
 
   Here you can enter any matching algorithm supported by your
-  dictionary server.
+  dictionary server."
-"
   :group 'dictionary
   :type '(choice (const :tag "Exact match" "exact")
 		 (const :tag "Similiar sounding" "soundex")
@@ -177,7 +175,7 @@ by the choice value:
 
 (defcustom dictionary-proxy-server
   "proxy"
-  "The name of the HTTP proxy to use when dictionary-use-http-proxy is set."
+  "The name of the HTTP proxy to use when `dictionary-use-http-proxy' is set."
   :group 'dictionary-proxy
   :set 'dictionary-set-server-var
   :type 'string
@@ -185,7 +183,7 @@ by the choice value:
 
 (defcustom dictionary-proxy-port
   3128
-  "The port of the proxy server, used only when dictionary-use-http-proxy is set."
+  "The port of the proxy server, used only when `dictionary-use-http-proxy' is set."
   :group 'dictionary-proxy
   :set 'dictionary-set-server-var
   :type 'number
@@ -200,14 +198,14 @@ by the choice value:
 
 (defcustom dictionary-description-open-delimiter
   ""
-  "The delimiter to display in front of the dictionaries description"
+  "The delimiter to display in front of the dictionaries description."
   :group 'dictionary
   :type 'string
   :version "28.1")
 
 (defcustom dictionary-description-close-delimiter
   ""
-  "The delimiter to display after of the dictionaries description"
+  "The delimiter to display after of the dictionaries description."
   :group 'dictionary
   :type 'string
   :version "28.1")
@@ -283,27 +281,27 @@ is utf-8"
 
 (defvar dictionary-window-configuration
   nil
-  "The window configuration to be restored upon closing the buffer")
+  "The window configuration to be restored upon closing the buffer.")
 
 (defvar dictionary-selected-window
   nil
-  "The currently selected window")
+  "The currently selected window.")
 
 (defvar dictionary-position-stack
   nil
-  "The history buffer for point and window position")
+  "The history buffer for point and window position.")
 
 (defvar dictionary-data-stack
   nil
-  "The history buffer for functions and arguments")
+  "The history buffer for functions and arguments.")
 
 (defvar dictionary-positions
   nil
-  "The current positions")
+  "The current positions.")
 
 (defvar dictionary-current-data
   nil
-  "The item that will be placed on stack next time")
+  "The item that will be placed on stack next time.")
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; Global variables
@@ -330,11 +328,11 @@ is utf-8"
 
 (defvar dictionary-connection
   nil
-  "The current network connection")
+  "The current network connection.")
 
 (defvar dictionary-instances
   0
-  "The number of open dictionary buffers")
+  "The number of open dictionary buffers.")
 
 (defvar dictionary-marker
   nil
@@ -344,11 +342,11 @@ is utf-8"
   (condition-case nil
       (x-display-color-p)
     (error nil))
-  "Determines if the Emacs has support to display color")
+  "Determines if the Emacs has support to display color.")
 
 (defvar dictionary-word-history
   '()
-  "History list of searched word")
+  "History list of searched word.")
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; Basic function providing startup actions
@@ -356,25 +354,25 @@ is utf-8"
 
 ;;;###autoload
 (defun dictionary-mode ()
+  ;; FIXME: Use define-derived-mode.
   "Mode for searching a dictionary.
 This is a mode for searching a dictionary server implementing the
 protocol defined in RFC 2229.
 
 This is a quick reference to this mode describing the default key bindings:
+\\<dictionary-mode-map>
+* \\[dictionary-close] close the dictionary buffer
+* \\[dictionary-help] display this help information
+* \\[dictionary-search] ask for a new word to search
+* \\[dictionary-lookup-definition] search the word at point
+* \\[forward-button] or TAB place point to the next link
+* \\[backward-button] or S-TAB place point to the prev link
 
-* q close the dictionary buffer
+* \\[dictionary-match-words] ask for a pattern and list all matching words.
-* h display this help information
+* \\[dictionary-select-dictionary] select the default dictionary
-* s ask for a new word to search
+* \\[dictionary-select-strategy] select the default search strategy
-* d search the word at point
-* n or Tab place point to the next link
-* p or S-Tab place point to the prev link
 
-* m ask for a pattern and list all matching words.
+* RET or <mouse-2> visit that link"
-* D select the default dictionary
-* M select the default search strategy
-
-* Return or Button2 visit that link
-"
 
   (unless (eq major-mode 'dictionary-mode)
     (cl-incf dictionary-instances))
@@ -399,7 +397,7 @@ This is a quick reference to this mode describing the default key bindings:
 
 ;;;###autoload
 (defun dictionary ()
-  "Create a new dictonary buffer and install dictionary-mode."
+  "Create a new dictonary buffer and install `dictionary-mode'."
   (interactive)
   (let ((buffer (or (and dictionary-use-single-buffer
                          (get-buffer "*Dictionary*"))
@@ -498,13 +496,13 @@ The connection takes the proxy setting in customization group
               (dictionary-open-server server)
             (error
              (if (y-or-n-p
-                  (format "Failed to open server %s, continue with dict.org?"
+                  (format "Failed to open server %s, continue with dict.org? "
                           server))
                  (dictionary-open-server "dict.org")
                (error "Failed automatic server selection, please customize dictionary-server"))))))))
 
 (defun dictionary-mode-p ()
-  "Return non-nil if current buffer has dictionary-mode."
+  "Return non-nil if current buffer has `dictionary-mode'."
   (eq major-mode 'dictionary-mode))
 
 (defun dictionary-ensure-buffer ()
@@ -535,7 +533,7 @@ The connection takes the proxy setting in customization group
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 (defun dictionary-send-command (string)
-  "Send the command `string' to the network connection."
+  "Send the command STRING to the network connection."
   (dictionary-check-connection)
   ;;;; #####
   (dictionary-connection-send-crlf dictionary-connection string))
@@ -566,7 +564,7 @@ This function knows about the special meaning of quotes (\")"
     (nreverse list)))
 
 (defun dictionary-read-reply-and-split ()
-  "Reads the reply, splits it into words and returns it."
+  "Read the reply, split it into words and return it."
   (let ((answer (make-symbol "reply-data"))
 	(reply (dictionary-read-reply)))
     (let ((reply-list (dictionary-split-string reply)))
@@ -589,7 +587,7 @@ The answer is delimited by a decimal point (.) on a line by itself."
     answer))
 
 (defun dictionary-check-reply (reply code)
-  "Extract the reply code from REPLY and checks against CODE."
+  "Extract the reply code from REPLY and check against CODE."
   (let ((number (dictionary-reply-code reply)))
     (and (numberp number)
 	 (= number code))))
@@ -623,7 +621,7 @@ The answer is delimited by a decimal point (.) on a line by itself."
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 (defun dictionary-check-initial-reply ()
-  "Reads the first reply from server and checks it."
+  "Read the first reply from server and check it."
   (let ((reply (dictionary-read-reply-and-split)))
     (unless (dictionary-check-reply reply 220)
       (dictionary-connection-close dictionary-connection)
@@ -631,9 +629,9 @@ The answer is delimited by a decimal point (.) on a line by itself."
 
 ;; Store the current state
 (defun dictionary-store-state (function data)
-  "Stores the current state of operation for later restore.
+  "Store the current state of operation for later restore.
-The current state consist of a tuple of FUNCTION and DATA. This
+The current state consist of a tuple of FUNCTION and DATA.
-is basically an implementation of a history to return to a
+This is basically an implementation of a history to return to a
 previous state."
   (if dictionary-current-data
       (progn
@@ -645,7 +643,7 @@ previous state."
 	(cons function data)))
 
 (defun dictionary-store-positions ()
-  "Stores the current positions for later restore."
+  "Store the current positions for later restore."
 
   (setq dictionary-positions (cons (point) (window-start))))
 
@@ -664,7 +662,7 @@ previous state."
 ;; The normal search
 
 (defun dictionary-new-search (args &optional all)
-  "Saves the current state and starts a new search based on ARGS.
+  "Save the current state and start a new search based on ARGS.
 The parameter ARGS is a cons cell where car is the word to search
 and cdr is the dictionary where to search the word in."
   (interactive)
@@ -680,15 +678,14 @@ and cdr is the dictionary where to search the word in."
 			    (list word dictionary 'dictionary-display-search-result))))
 
 (defun dictionary-new-search-internal (word dictionary function)
-  "Starts a new search for WORD in DICTIONARY after preparing the buffer.
+  "Start a new search for WORD in DICTIONARY after preparing the buffer.
-FUNCTION is the callback which is called for each search result.
+FUNCTION is the callback which is called for each search result."
-"
   (dictionary-pre-buffer)
   (dictionary-do-search word dictionary function))
 
 (defun dictionary-do-search (word dictionary function &optional nomatching)
-  "Searches WORD in DICTIONARY and calls FUNCTION for each result.
+  "Search for WORD in DICTIONARY and call FUNCTION for each result.
-The parameter NOMATCHING controls whether to suppress the display
+Optional argument NOMATCHING controls whether to suppress the display
 of matching words."
 
   (message "Searching for %s in %s" word dictionary)
@@ -712,7 +709,7 @@ of matching words."
 				    'dictionary-display-only-match-result)
 	    (dictionary-post-buffer)))
       (if (dictionary-check-reply reply 550)
-	  (error "Dictionary \"%s\" is unknown, please select an existing one."
+          (error "Dictionary \"%s\" is unknown, please select an existing one"
 		 dictionary)
 	(unless (dictionary-check-reply reply 150)
 	  (error "Unknown server answer: %s" (dictionary-reply reply)))
@@ -776,7 +773,7 @@ of matching words."
   (setq buffer-read-only t))
 
 (defun dictionary-display-search-result (reply)
-  "This function starts displaying the result in REPLY."
+  "Start displaying the result in REPLY."
 
   (let ((number (nth 1 (dictionary-reply-list reply))))
     (insert number (if (equal number "1")
@@ -810,8 +807,7 @@ The DICTIONARY is only used for decoding the bytes to display the DESCRIPTION."
 (defun dictionary-display-word-definition (reply word dictionary)
   "Insert the definition in REPLY for the current WORD from DICTIONARY.
 It will replace links which are found in the REPLY and replace
-them with buttons to perform a a new search.
+them with buttons to perform a a new search."
-"
   (let ((start (point)))
     (insert (dictionary-decode-charset reply dictionary))
     (insert "\n\n")
@@ -931,7 +927,7 @@ If PATTERN is omitted, it defaults to \"[ \\f\\t\\n\\r\\v]+\"."
       (message "Dictionary %s has been selected" dictionary))))
 
 (defun dictionary-special-dictionary (name)
-  "Checks whether the special * or ! dictionary are seen in NAME."
+  "Check whether the special * or ! dictionary are seen in NAME."
   (or (equal name "*")
       (equal name "!")))
 
@@ -1011,7 +1007,7 @@ If PATTERN is omitted, it defaults to \"[ \\f\\t\\n\\r\\v]+\"."
 	  (insert "\n")))))
 
 (defun dictionary-set-strategy (strategy &rest ignored)
-  "Select this STRATEGY as new default"
+  "Select this STRATEGY as new default."
   (setq dictionary-default-strategy strategy)
   (dictionary-restore-state)
   (message "Strategy %s has been selected" strategy))
@@ -1234,7 +1230,7 @@ allows editing it."
 
 (defcustom dictionary-tooltip-dictionary
   nil
-  "This dictionary to lookup words for tooltips"
+  "This dictionary to lookup words for tooltips."
   :group 'dictionary
   :type '(choice (const :tag "None" nil) string)
   :version "28.1")
@@ -1296,8 +1292,7 @@ It is normally internally called with 1 to enable support for the
 tooltip mode. The hook function will check the value of the
 variable dictionary-tooltip-mode to decide if some action must be
 taken. When disabling the tooltip mode the value of this variable
-will be set to nil.
+will be set to nil."
-"
   (interactive)
   (tooltip-mode on)
   (if on
@@ -1310,9 +1305,7 @@ will be set to nil.
 
 This function can be used to enable or disable the tooltip mode
 for the current buffer (based on ARG).  If global-tooltip-mode is
-active it will overwrite that mode for the current buffer.
+active it will overwrite that mode for the current buffer."
-"
-
   (interactive "P")
   (require 'tooltip)
   (let ((on (if arg
@@ -1335,8 +1328,7 @@ Internally it provides a default for the dictionary-tooltip-mode.
 It can be overwritten for each buffer using dictionary-tooltip-mode.
 
 Note: (global-dictionary-tooltip-mode 0) will not disable the mode
-any buffer where (dictionary-tooltip-mode 1) has been called.
+any buffer where (dictionary-tooltip-mode 1) has been called."
-"
   (interactive "P")
   (require 'tooltip)
   (let ((on (if arg (> (prefix-numeric-value arg) 0)