+" 20 the swap file
+
+let myUndoDir = expand('~/tmp/vim/undo')
+if !isdirectory(myUndoDir)
+ " Create dirs
+ call mkdir(myUndoDir, 'p')
+endif
+
+" list of directories for the swap file; remove . (the current directory)
+if has("win32")
+ set directory=~/tmp/vim//,$TEMP//,c:/tmp//,c:/temp//
+else
+ set directory=~/tmp/vim//,~/tmp//,/var/tmp//,/tmp//
+endif
+" if a directory ends in two path separators "//"
+" or "\\", the swap file name will be built from the complete path to
+" the file with all path separators substituted to percent '%' signs.
+" This will ensure file name uniqueness in the preserve directory.
+