au BufNewFile,BufRead *.scheme set filetype=scheme
au BufNewFile,BufRead *.cls set filetype=tex
au BufNewFile,BufRead *.sig set filetype=sml
+au BufNewFile,BufRead *.txt set filetype=txt
au BufNewFile,BufRead *.cabal set filetype=cabal
au BufNewFile,BufRead *.h set filetype=c
au BufNewFile,BufRead *.gob set filetype=gob