RE: [Tclish-devel] Installer modules

[Andreas K. <and...@Ac...>]

> -----Original Message-----
> From: tcl...@li...
> [mailto:tcl...@li...]On Behalf Of Steve
> Cassidy
> Sent: Sunday, July 22, 2001 6:05 AM
> To: tcl...@li...
> Subject: Re: [Tclish-devel] Installer modules
>
>
> On Thursday 19 July 2001 19:05, Peter Farmer wrote:
>
> >    - de/compression utils
>
> You mention a tcl only unzipper later, how feasable do you think this is?
> The mkZipLib extension is C but should be very portable and is
> quite small.

Decoding the header of a .gz or .zip file file using tcl (binary scan)
is feasible (I have some code for .gz somewhere), but the compressed
data is another thing. I believe that you will need a C-level extension
wrapping around zlib for this.


> >    - comprehensive filesystem abstraction layer ?
> >      - especially determing available filespace,
>
> Very good point, how doable is this. I imagine it would need a call to a
> system routine on Mac and Win, of course on Unix you can df.

Don't forget that the interface (= cmdline options) of df is consistent
over all *nixes. There is a wiki page demonstrating usage of 'df'.

--
	Andreas Kupries <and...@Ac...>
	Developer @ http://www.ActiveState.com