I'm still reading your article, and I will give more comments later
today, but I just wanted to mention that there used to be a
bidirectional pipes tutorial back in the 3.* cycle:
https://hackage.haskell.org/package/pipes-3.3.0/docs/Control-Proxy-Tutorial.html#g:2
I deleted in the transition to 4.0.0, mainly because people were
complaining about the high complexity of `pipes` and one of the goals of
the 4.0.0 release was to show that you could program entirely in a
unidirectional subset of `pipes`. However, I plan to add a
bidirectional tutorial back again soon.
You might also find this Stack Overflow answer I wrote helpful:
http://stackoverflow.com/questions/23185690/event-handler-stack/23187159#23187159
On 5/21/14, 4:38 AM, Chris Mahon wrote:
Hi all,
I'm working on an article titled pipes deconstructed
<http://cmahon.github.io/posts/pipes-deconstructed/> and would really
appreciate feedback before I put the final touches on it. My aim is to
explain the underlying co-routine mechanics via a reduction of a
simple example to Proxy form. While I found it useful to get to grips
with the pipes implementation for my own edification, I'm really not
sure whether anyone else would find this level of detail useful so
apart from any comments on style, correctness, etc., please let me
know if I'm off on a self-indulgent tangent of no wider interest!
Was also thinking of writing a short article illustrating
bi-directional pipes usage as I couldn't find much detail on the
subject in the pipes tutorial and I leaned how to send data upstream
while digging into the pipes code. Simple example towards the end of a
short note I just wrote on fix.
<http://cmahon.github.io/notes/haskell/#fix>
I've just created my blog and the limited content that's there is all
work in progress at the moment so a bit rough and ready in places.
Anyway, thanks in advance for your help,
Chris
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