Function: gnus-widget-reversible-match
gnus-widget-reversible-match is a byte-compiled function defined in
gnus-sum.el.gz.
Signature
(gnus-widget-reversible-match WIDGET VALUE)
Documentation
Ignoring WIDGET, convert VALUE to internal form.
VALUE should have the form FOO or (not FOO), where FOO is an symbol.
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/gnus-sum.el.gz
(defun gnus-widget-reversible-match (_widget value)
"Ignoring WIDGET, convert VALUE to internal form.
VALUE should have the form `FOO' or `(not FOO)', where FOO is an symbol."
;; (debug value)
(or (symbolp value)
(and (listp value)
(eq (length value) 2)
(eq (nth 0 value) 'not)
(symbolp (nth 1 value)))))