On Sun, Nov 7, 2010 at 10:43 AM, Joachim Breitner <m...@joachim-breitner.de> wrote: > Hi Jaap, > > your CSV library is used in the Hackage2 project. I found that backup > and restore does not work with a pristine state, and the reason seems to > be a problem with your library: It either adds unnecessary newlines or > interprets empty lines at the end of the program for no apparent reason: > > Prelude Text.CSV> (parseCSV "name" . printCSV) [] > Right [[""]] > Prelude Text.CSV> (parseCSV "name" . printCSV) [[]] > Right [[""],[""]] > Prelude Text.CSV> (parseCSV "name" . printCSV) [[],[]] > Right [[""],[""]] > Prelude Text.CSV> (parseCSV "name" . printCSV) [["hi"],["ho"]] > Right [["hi"],["ho"],[""]] > Prelude Text.CSV> (parseCSV "name" . printCSV) [["hi"]] > Right [["hi"],[""]] > Prelude Text.CSV> >
At some point I had a hack in place to drop the last row of a parsed CSV file if it was nothing but an empty string. It may have gotten lost, or it may not be universally applied in hackage-server 2. This worked pretty well for most things, but I don't think I ever ran into the issue of an empty line in the middle of a CSV file. Antoine _______________________________________________ cabal-devel mailing list cabal-devel@haskell.org http://www.haskell.org/mailman/listinfo/cabal-devel
