- '(("^no\\." iso-8859-1)
- (message-this-is-mail nil)
- (".*" iso-8859-1)
- (message-this-is-news iso-8859-1))
- "Alist of regexps (to match group names) and default charsets to be unencoded when posting."
- :type '(repeat (list (regexp :tag "Group")
- (symbol :tag "Charset")))
+ '(("^\\(no\\|fr\\|dk\\)\\.[^,]*\\(,[ \t\n]*\\(no\\|fr\\|dk\\)\\.[^,]*\\)*$" iso-8859-1 (iso-8859-1))
+ ("^\\(fido7\\|relcom\\)\\.[^,]*\\(,[ \t\n]*\\(fido7\\|relcom\\)\\.[^,]*\\)*$" koi8-r (koi8-r))
+ (message-this-is-mail nil nil)
+ (message-this-is-news nil t))
+ "Alist of regexps and permitted unencoded charsets for posting.
+Each element of the alist has the form (TEST HEADER BODY-LIST), where
+TEST is either a regular expression matching the newsgroup header or a
+variable to query,
+HEADER is the charset which may be left unencoded in the header (nil
+means encode all charsets),
+BODY-LIST is a list of charsets which may be encoded using 8bit
+content-transfer encoding in the body, or one of the special values
+nil (always encode using quoted-printable) or t (always use 8bit).
+
+Note that any value other than nil for HEADER infringes some RFCs, so
+use this option with care."
+ :type '(repeat (list :tag "Permitted unencoded charsets"
+ (choice :tag "Where"
+ (regexp :tag "Group")
+ (const :tag "Mail message" :value message-this-is-mail)
+ (const :tag "News article" :value message-this-is-news))
+ (choice :tag "Header"
+ (const :tag "None" nil)
+ (symbol :tag "Charset"))
+ (choice :tag "Body"
+ (const :tag "Any" :value t)
+ (const :tag "None" :value nil)
+ (repeat :tag "Charsets"
+ (symbol :tag "Charset")))))