+ "*Number of overviews to fetch in one request.")
+
+;; c.f. rfc2683 3.2.1.5 Long Command Lines
+;;
+;; "A client should limit the length of the command lines it generates
+;; to approximately 1000 octets (including all quoted strings but not
+;; including literals). If the client is unable to group things into
+;; ranges so that the command line is within that length, it should
+;; split the request into multiple commands. The client should use
+;; literals instead of long quoted strings, in order to keep the command
+;; length down.
+;; For its part, a server should allow for a command line of at least
+;; 8000 octets. This provides plenty of leeway for accepting reasonable
+;; length commands from clients. The server should send a BAD response
+;; to a command that does not end within the server's maximum accepted
+;; command length. "
+
+;; To limit command line length, chop number set.
+(defvar elmo-imap4-number-set-chop-length 1000
+ "*Number of messages to specify as a number-set argument for one request.")