Variable: mail-citation-hook
mail-citation-hook is a customizable variable defined in
sendmail.el.gz.
Value
nil
Documentation
Hook for modifying a citation just inserted in the mail buffer.
Each hook function can find the citation between (point) and (mark t),
and should leave point and mark around the citation text as modified.
The hook functions can find the header of the cited message
in the variable mail-citation-header, whether or not this is included
in the cited portion of the message.
If this hook is entirely empty (nil), a default action is taken instead of no action.
Probably introduced at or before Emacs version 19.15.
Source Code
;; Defined in /usr/src/emacs/lisp/mail/sendmail.el.gz
;;;###autoload
(defcustom mail-citation-hook nil
"Hook for modifying a citation just inserted in the mail buffer.
Each hook function can find the citation between (point) and (mark t),
and should leave point and mark around the citation text as modified.
The hook functions can find the header of the cited message
in the variable `mail-citation-header', whether or not this is included
in the cited portion of the message.
If this hook is entirely empty (nil), a default action is taken
instead of no action."
:type 'hook)