On Tue, Oct 28, 2008 at 12:12 PM, Eduardo Morras <[EMAIL PROTECTED]> wrote:
>
> In fact deflate/zip is 18-19 years old and there are lot of better
> compression algorithm, like LZX. I think there is one implemented in Pascal
> (ABC if memory don't fails).

I'm still trying to find a compression algorithm that beats whatever
7-zip uses. The results are by magnitudes smaller than any other
compression algorithm I have seen.

The important thing for TZipFile component is that the archive format
must compresses every file separately. Otherwise you can't extract a
specific file without unpacking everything first.

The other thing is the algorithms need to be free and supporting
Unicode. 7-zip's LZMA does pass both requirements. I'm just not sure
if it compresses filed separately - I would imagine it can/does.


Regards,
  - Graeme -


_______________________________________________
fpGUI - a cross-platform Free Pascal GUI toolkit
http://opensoft.homeip.net/fpgui/
_______________________________________________
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/mailman/listinfo/fpc-pascal

Reply via email to