Hi, I was wondering why Text.Regex.Posix does not expose the Ptr interface to the regular expression library? Is there a deeper reason for that? I am also worried about the fact that the module uses finalizers to free-up unused expressions -- rather than providing a bracket-style withRegex :: String -> Int -> (Regex -> IO a) -> IO a function. Last but not least I see that the regex flags are represented as an 'Int'. I don't feel strongly about this, but IMHO a data RegexFlag = IgnoreCase | Newline | ... data type with an appropriate declaration for Enum would be nicer for this purpose. Unless there is violent opposition, I'd volunteer to make those changes, because as it happens I need them anyway. ;-) Peter