On 06/02/2012 20:32, Ian Lynagh wrote:
On Sun, Feb 05, 2012 at 07:17:32PM -0800, John Millikin wrote:
That was my understanding also, then QuickCheck found a
counter-example. It turns out that there are cases where a valid path
cannot be roundtripped in the GHC 7.2 encoding.
This is fixed in GHC 7.4.1.
I think we forgot to mention it in the release notes. Rountripping of
FilePath is now fully supported. The commit in question is this:
commit 7e59b6d50ec4a4400e8730bfd8cfc471c1873702
Author: Max Bolingbroke <batterseapo...@hotmail.com>
Date: Fri Nov 18 17:45:34 2011 +0000
Go back to using private-use characters in roundtripping
Which was the result of a long discussion on the glasgow-haskell-users
mailing list:
http://www.haskell.org/pipermail/glasgow-haskell-users/2011-November/021115.html
Separately the unix package added support for undecoded FilePaths
(RawFilePath), but unfortunately at the same time we started using a new
extension in GHC 7.4.1 (CApiFFI), which we decided not to document
because it was still experimental:
http://hackage.haskell.org/trac/ghc/ticket/2979
In retrospect we should have documented this. It's not like we don't
normally dump a load of experimental features on our users and then
change them later :-)
Cheers,
Simon
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