[Haskell-cafe] Re: Network parsing and parsec

[Keean Schupke]

John Goerzen wrote:

>On 2005-09-15, Adam Turoff <adam.turoff at gmail.com> wrote:
>  
>
>>On 9/15/05, John Goerzen <jgoerzen at complete.org> wrote:
>>    
>>
>>>So, to make that approach work, I would really need to do a lot of work
>>>outside of Parsec -- the stuff that I really want to use Parsec for, I
>>>think.
>>>      
>>>
>>Well, you do have a state monad to work with.  Why not just stuff
>>the number 305 into your state, keep reading until you've read 305 bytes 
>>(decrementing the count as you read), and return the 305-byte string 
>>as your result for this parser?  When you resume,  you should 
>>be ready to parse the next very token after the 305-byte string.
>>    
>>
>
>It's unclear to me exactly how to mix the IO monad with Parsec.  It
>doesn't really seem to be doable.
>
>Not to mention that if hGetContents is used, the Handle has to be put
>into non-buffering mode, which means one syscall per character read.
>Terribly slow.
>
>  
>
Does it? I didn't think so ...

Keean.