Function: gnus-category-make-function-1

gnus-category-make-function-1 is a byte-compiled function defined in gnus-agent.el.gz.

Signature

(gnus-category-make-function-1 PREDICATE)

Documentation

Make a function from PREDICATE.

Source Code

;; Defined in /usr/src/emacs/lisp/gnus/gnus-agent.el.gz
(defun gnus-category-make-function-1 (predicate)
  "Make a function from PREDICATE."
  (cond
   ;; Functions are just returned as is.
   ((or (symbolp predicate)
	(functionp predicate))
    `(,(or (cdr (assq predicate gnus-category-predicate-alist))
	   predicate)))
   ;; More complex predicate.
   ((consp predicate)
    `(,(cond
	((memq (car predicate) '(& and))
	 'and)
	((memq (car predicate) '(| or))
	 'or)
	((memq (car predicate) gnus-category-not)
	 'not))
      ,@(mapcar #'gnus-category-make-function-1 (cdr predicate))))
   (t
    (error "Unknown predicate type: %s" predicate))))