{ { 3 4 { 5 6 { 7 } } } } [
{ 1 2 { 3 4 { 5 } } } seq>cons [ atom? ] [ 2 + ] traverse cons>seq
+] unit-test
+
+{ { 1 2 3 4 5 6 } } [
+ { 1 2 3 } seq>list { 4 5 6 } seq>list lappend list>seq
] unit-test
\ No newline at end of file
-! Copyright (C) 2008 Chris Double & James Cash
+! Copyright (C) 2008 James Cash
! See http://factorcode.org/license.txt for BSD license.
USING: kernel sequences accessors math arrays vectors classes words locals ;
: lreverse ( list -- newlist )
nil [ swap cons ] foldl ;
+: lappend ( list1 list2 -- newlist )
+ [ lreverse ] dip [ swap cons ] foldl ;
+
: seq>list ( seq -- list )
<reversed> nil [ swap cons ] reduce ;