On 30 August 2012 15:34, Alexander Bernauer <alex-hask...@copton.net> wrote:
> Hi > > I agree that automatic code migration can solve this issue in large > parts. The Python folks have done this to mitigate the transition from > version 2 to version 3 [1]. > > On Thu, Aug 30, 2012 at 03:03:05PM +0200, Alexander Kjeldaas wrote: > > perl -ni -e 'print unless /import Prelude hiding \(catch\)/' $(git grep > > 'import Prelude hiding (catch)') > > I don't think regular expressions are powerful enough. This example > does not match on hiding multiple names, for instance. > > This was just an example, the CInt regexp handles multiple names, so regexps have no problems handling this. And it's a simple "git grep 'import.*Prelude.*catch'" to see if this actually is a problem or not. My point is that this works, fixes 99% of the cases, and is 1000x less work overall. Alexander > But writing proper 'HsModule -> HsModule' functions should be doable. > > And when each release comes with a bunch of such functions, packages > could be automatically migrated. > > Greetings > > Alex > > [1] http://docs.python.org/library/2to3.html > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (GNU/Linux) > > iEYEARECAAYFAlA/a/oACgkQevm6Dd/q44nJXQCffaxEJ/NZEftgoZ7viAWMuBO3 > +jkAnRTw+VCMQn1k9NibyKpkGMtwvrQw > =ds3M > -----END PGP SIGNATURE----- > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > >
_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe