[Haskell-cafe] Abstracted File Library?

Hello, I'm implementing a command which manipulates files both on Unix/Mac and Windows. I was very surprised because there is not "getStatusChangeTime" function. So, I wrote it with CPP. http://github.com/kazu-yamamoto/Mew/blob/master/bin/hs/Stat.hs Another problem is that since '\\' is used as the file separator of Windows, I cannot use regular expression naturally for file path. In many programming languages, '/' is only file separator for programmers. And my friend, who is an expert of Windows API, says to me that Windows API allows '/' as a file separator. Why don't we use '/' on Windows, too? Are there any abstracted file library to solve these problems? Or should I start to write such a library? --Kazu