Added help system.

diff --git a/lurk.el b/lurk.el
index 68fff0d..42f4cdb 100644 (file)
--- a/lurk.el
+++ b/lurk.el
@@ -831,7 +831,8 @@ in which case they match anything.")
     ("QUIT" "Disconnect from current network." lurk-command-quit)
     ("NICK" "Change nick." lurk-command-nick)
     ("LIST" "Display details of one or more channels." lurk-command-list)
-    ("MSG" "Send private message to user." lurk-command-msg lurk-nick-completions))
+    ("MSG" "Send private message to user." lurk-command-msg lurk-nick-completions)
+    ("HELP" "Display help on client commands." lurk-command-help lurk-help-completions))
   "Table of commands explicitly supported by Lurk.")
 
 (defun lurk-boolean-completions ()
@@ -846,6 +847,22 @@ in which case they match anything.")
 (defun lurk-context-completions ()
   (lurk-get-context-list))
 
+(defun lurk-help-completions ()
+  (mapcar (lambda (row) (car row)) lurk-command-table))
+
+(defun lurk-command-help (params)
+  (if params
+      (let* ((cmd-str (upcase (car params)))
+             (row (assoc cmd-str lurk-command-table #'equal)))
+        (if row
+            (progn
+              (lurk-display-notice nil "Help for \x02" cmd-str "\x02:")
+              (lurk-display-notice nil "  " (elt row 1)))
+          (lurk-display-notice nil "No such (client-interpreted) command.")))
+    (lurk-display-notice nil "Client-interpreted commands:")
+    (dolist (row lurk-command-table)
+      (lurk-display-notice nil "  \x02" (elt row 0) "\x02: " (elt row 1)))
+    (lurk-display-notice nil "Use /HELP COMMAND to display information about a specific command.")))
 
 ;;; Command entering
 ;;