Pre-proposal discussion: add a version of dropWhileEnd with different laziness properties to Data.List

Greg Weber greg at gregweber.info
Mon Sep 29 21:31:56 UTC 2014


>
>
> > Do you mean system-filepath [1]?
>
> No.  The api is ok, but performance is terrible because everything is a
> String.  Traversing large directories in Haskell is orders of magnitude
> slower than it should be (unless you use posix-paths, which obviously isn't
> portable).  I mean something that internally uses a RawFilePath on posix
> systems and some windows-specific thing on Windows.
>
>
I don't know how to reconcile this statement with how find-conduit was
benchmarked to operate about as fast as GNU grep since it uses
system-filepath. I am probably missing something important.
http://hackage.haskell.org/package/find-conduit-0.4.1/docs/Data-Conduit-Find.html#t:FileEntry



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