Debian Bug report logs - #669390
O: ppmd -- fast archiver program with good compression ratio

Package: wnpp; Maintainer for wnpp is wnpp@debian.org;

Reported by: Guillem Jover <guillem@debian.org>

Date: Thu, 19 Apr 2012 14:09:06 UTC

Severity: normal

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Report forwarded to debian-bugs-dist@lists.debian.org, debian-devel@lists.debian.org, wnpp@debian.org:
Bug#669390; Package wnpp. (Thu, 19 Apr 2012 14:09:09 GMT) Full text and rfc822 format available.

Acknowledgement sent to Guillem Jover <guillem@debian.org>:
New Bug report received and forwarded. Copy sent to debian-devel@lists.debian.org, wnpp@debian.org. (Thu, 19 Apr 2012 14:09:09 GMT) Full text and rfc822 format available.

Message #5 received at submit@bugs.debian.org (full text, mbox):

From: Guillem Jover <guillem@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: O: ppmd -- fast archiver program with good compression ratio
Date: Thu, 19 Apr 2012 16:07:23 +0200
Package: wnpp
Severity: normal

Continuing with my intention to try to match my current dissatisfaction
with the project with my dedication to it, I've just orphaned the ppmd
package.

The package just got ported recently to 64-bit systems so builds for
those systems need to be hand-held for now as that's not reflected
on P-a-s yet.

The package description is:
 ppmd predicts the probability of a given character based on the
 characters that immediately precede it (as all PPM compressors,
 see also Markov Chains and Context Modeling). This archiver
 should be better than zip, gzip, bzip2, zzip, szip and ppmz(2)
 at compressing files.

regards,
guillem




Information forwarded to debian-bugs-dist@lists.debian.org, wnpp@debian.org:
Bug#669390; Package wnpp. (Thu, 19 Apr 2012 18:12:03 GMT) Full text and rfc822 format available.

Acknowledgement sent to Andres Mejia <amejia004@gmail.com>:
Extra info received and forwarded to list. Copy sent to wnpp@debian.org. (Thu, 19 Apr 2012 18:12:03 GMT) Full text and rfc822 format available.

Message #10 received at 669390@bugs.debian.org (full text, mbox):

From: Andres Mejia <amejia004@gmail.com>
To: Guillem Jover <guillem@debian.org>, 669390@bugs.debian.org
Cc: debian-devel@lists.debian.org
Subject: Re: Bug#669390: O: ppmd -- fast archiver program with good compression ratio
Date: Thu, 19 Apr 2012 14:08:35 -0400
[Message part 1 (text/plain, inline)]
On Apr 19, 2012 10:09 AM, "Guillem Jover" <guillem@debian.org> wrote:
>
> Package: wnpp
> Severity: normal
>
> Continuing with my intention to try to match my current dissatisfaction
> with the project with my dedication to it, I've just orphaned the ppmd
> package.
>
> The package just got ported recently to 64-bit systems so builds for
> those systems need to be hand-held for now as that's not reflected
> on P-a-s yet.
>
> The package description is:
>  ppmd predicts the probability of a given character based on the
>  characters that immediately precede it (as all PPM compressors,
>  see also Markov Chains and Context Modeling). This archiver
>  should be better than zip, gzip, bzip2, zzip, szip and ppmz(2)
>  at compressing files.
>
> regards,
> guillem

FYI, ppmd (at least variants H and I) is used in 7zip. Similar code to
read/write 7zip is found in libarchive (and thus bsdtar). Libarchive has
been ported to a wide range of systems. I think the same is true for 7zip.

So there are alternatives.

~ Andres
[Message part 2 (text/html, inline)]

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