Function: message-field-value
message-field-value is a byte-compiled function defined in
message.el.gz.
Signature
(message-field-value HEADER &optional FIRST)
Documentation
The same as message-fetch-field, only narrow to the headers first.
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/message.el.gz
(defun message-field-value (header &optional first)
"The same as `message-fetch-field', only narrow to the headers first."
(save-excursion
(save-restriction
(message-narrow-to-headers-or-head)
(message-fetch-field header first))))