Haskellのエスケープ(\)の挙動

function \ string	"a"	"\a"	"\\a"	"\\\a"
repl	"a"	"\a"	"\\a"	"\\\a"
length	1	1	2	2
mapM_ print	'a'	'\a'	'\\' 'a'	'\\' '\a'
show	"\"a\""	"\"\\a\""	"\"\\\\a\""	"\"\\\\\\a\""

Haskell Escape