[fpc-pascal] helpsystem, some numbers

[Graeme Geldenhuys]

On Tue, Oct 28, 2008 at 12:12 PM, Eduardo Morras <emorras at xroff.net> 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 -


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