Re: [Chicken-users] z3: gzip compatibility

[Daishi Kato]

At Tue, 2 Dec 2008 10:04:29 +0100,
Tobia Conforto wrote:
> 
> Daishi Kato wrote:
> > Does anyone know if I can use z3 egg to reproduce the same result  
> > made by gzip?
> 
> Yes you can, but you have to use the right functions.
> 
> Note that a file in gzip format includes some zlib-encoded data, after  
> a header, but it's not plain zlib-encoded data.
> 
> This works:
> 
> $ echo hello > test
> $ gzip test
> $ csi -q
> #;1> (use z3)
> ; loading /usr/local/lib/chicken/3/z3.so ...
> #;2> (read (z3:open-compressed-input-file "test.gz"))
> hello
> #;3>

Thanks Toiba and Felix.

Can I do it without using the file? maybe using string or port.
In other words, how can I encode/decode the header.
The documentation does not seem to help me on it.

I'm thinking of using it with http-server (or spiffy)
to support Content-Encoding: gzip.

Best,
Daishi