From: vitaly <v.mayatskih@gmail.com>
Date: Sun, 8 Feb 2009 13:26:30 +0000 (+0100)
Subject: New helper function: elmo-union
X-Git-Url: https://repo.or.cz/w/more-wl.git/commitdiff_plain/7601c9e4614b1de5875f0def1033e9dda1fc2180

New helper function: elmo-union

Makes a union of two possibly unsorted lists.
---

diff --git a/elmo/elmo-util.el b/elmo/elmo-util.el
index f5191fb..b796432 100644
--- a/elmo/elmo-util.el
+++ b/elmo/elmo-util.el
@@ -485,6 +485,10 @@ Return value is a cons cell of (STRUCTURE . REST)"
       (setq list (cdr list))))
   list)
 
+(defun elmo-union (l1 l2)
+  "Make a union of two lists"
+  (elmo-uniq-sorted-list (sort (append l1 l2) #'<)))
+
 (defun elmo-list-insert (list element after)
   (let* ((match (memq after list))
 	 (rest (and match (cdr (memq after list)))))