Re: [Haskell-cafe] Re: interaction between OS processes

On Fri, Aug 31, 2007 at 12:23:42AM +0000, Aaron Denney wrote:

On 2007-08-30, Andrea Rossato wrote:

...

Hi,

there's something I don't get about interaction among OS processes and Haskell handles/channels.

This looks like a buffering problem. You might be able to make it work by explicitly setting "line buffering" with hSetBuffering

Thanks for your kind attention, but I don't think it's a matter of buffering (I indeed tried playing with hSetBuffering with no results). As I said I'm not even sure if what I intend to do can actually be done...;-) Basically I'd like to write the equivalent of "expect", which talks to interactive programs (with the difference the mine is supposed to talk to a program I wrote, so I don't need to embed a domain specific language in it). Since I don't know all this handle/channel/process interaction stuff I'm leaning towards some other kind of server/client type of interaction, probably with sockets...:-( Thanks again. Andrea