[Haskell-cafe] Ideas on a fast and tidy CSV library

Justin Paston-Cooper paston.cooper at gmail.com
Thu Jul 25 11:02:34 CEST 2013

I hadn't yet tried profiling the programme. I actually deleted it a few
days ago. I'm going to try to get something new running, and I will report
back. On a slightly less related track: Is there any way to use cassava so
that I can have pure state and also yield CSV lines while my computation is
running instead of everything at the end as would be with the State monad?

On 23 July 2013 22:13, Johan Tibell <johan.tibell at gmail.com> wrote:

> On Tue, Jul 23, 2013 at 5:45 PM, Ben Gamari <bgamari.foss at gmail.com>
> wrote:
> > Justin Paston-Cooper <paston.cooper at gmail.com> writes:
> >
> >> Dear All,
> >>
> >> Recently I have been doing a lot of CSV processing. I initially tried to
> >> use the Data.Csv (cassava) library provided on Hackage, but I found
> this to
> >> still be too slow for my needs. In the meantime I have reverted to
> hacking
> >> something together in C, but I have been left wondering whether a tidy
> >> solution might be possible to implement in Haskell.
> >>
> > Have you tried profiling your cassava implementation? In my experience
> > I've found it's quite quick. If you have an example of a slow path I'm
> > sure Johan (cc'd) would like to know about it.
> I'm always interested in examples of code that is not running fast
> enough. Send me a reproducible example (preferably as a bug on the
> GitHub bug tracker) and I'll take a look.
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