Re: [Haskell-cafe] Stack space overflow in HaskellNet

27 Jul 2011

      On Wed, 27 Jul 2011 09:47:52 -0700 (PDT)
Donn Cave  wrote:
...
Quoth Manfred Lotz ,
...
...
The problem seems to lie in the HaskellNet package. If for example I
only fetch a specific message 
   m <- fetch con 2092
having a size of some 1.2m then I get the same stack overflow.
If at runtime I specify +RTS -K40M -RTS it works but takes over 40
seconds to fetch the message.
That's not so good, but I wouldn't be surprised if it's a natural
parsing problem, I mean it's just a lot of data to run through a
Haskell parser.
Yep, I agree. Perhaps the library should provide a fetchRaw function to
get the whole message without much parsing. Perhaps I could tell the
package author what the problem is, and he is happy to provide a
solution.

In the end the only thing I need is to get the full message because I
want to feed bogofilter to learn that a message is ham or spam.

For the time being I decided to write my own program to fetch the data
because it is a good exercise for a Haskell beginner as I am.

-- 
Manfred