Zip Libraries in Framework 1.1

[BuddyWork]

Hello,

Are there a class within the Framework that support zip
which Microsoft has written?

I'm aware of the open source SharpLibZip.

Thanks

[Drebin]

Correct, the compression stuff in 2.0 is for compressing actual files only,
NOT folders.. and you can't open these files with something like WinZip..

"James Curran" <Ja*********@mv ps.org> wrote in message
news:ec******** ********@TK2MSF TNGP12.phx.gbl. ..

"Dennis Myrén" <de****@oslokb. no> wrote in message
news:0p******** ***********@new s4.e.nsc.no...

Currently i am using SharpZipLib but (with all respect to SharpZipLib)
built-in compression routines are preferred.
Looking at the docs Jon linked to and the code Drebin posted, it

doesn't seem directly comparable. SharpZipLib as I recall, creates proper Zip
files, just like PKZip or Winzip (multiple files with internal table of
contents). The framework's functions appear to just handle the compressing of text (which, granted, is the hard part, but still leave you some work to do).

--
Truth,
James Curran
Home: www.noveltheory.com Work: www.njtheater.com
Blog: www.honestillusion.com Day Job: www.partsearch.com
(note new day job!)

[Jon Skeet [C# MVP]]

James Curran <Ja*********@mv ps.org> wrote:

"Dennis Myrén" <de****@oslokb. no> wrote in message
news:0p******** ***********@new s4.e.nsc.no...

Currently i am using SharpZipLib but (with all respect to SharpZipLib)
built-in compression routines are preferred.

Looking at the docs Jon linked to and the code Drebin posted, it doesn't
seem directly comparable. SharpZipLib as I recall, creates proper Zip
files, just like PKZip or Winzip (multiple files with internal table of
contents). The framework's functions appear to just handle the compressing
of text (which, granted, is the hard part, but still leave you some work to
do).

I don't see anything text-specific there - it's all stream-based as far
as I can see.

You're right that it doesn't deal with zip files though. Personally
that isn't an issue for me, but it looks like SharpZipLib will still be
useful for some people.

For those interested in binary diffs, by the way, I recently
implemented a VCDIFF decoder. The combination of xdelta3 (or a similar
VCDIFF compressor) and then gzip gives a really good way of
distributing updates in bandwidth-limited situations. The VCDIFF
decoder is available at
http://www.pobox.com/~skeet/csharp/miscutil

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Larry Smith]

Believe it or not, there is Zip support in (of all places) the J# library!

Java uses .JAR (Java ARchive) files, which are really .zip files, and there
are APIs to manipulate them.

I haven't tried it, so I don't know how well they work, so you're on your
own there.

See http://msdn.microsoft.com/msdnmag/is...ipcompression/

[James Curran]

"Jon Skeet [C# MVP]" <sk***@pobox.co m> wrote in message
news:MP******** *************** *@msnews.micros oft.com...

James Curran <Ja*********@mv ps.org> wrote:

The framework's functions appear to just handle the compressing
of text

I don't see anything text-specific there - it's all stream-based as far
as I can see.

Yes, that's correct. The "text" in my message was a misspeak. I'm not
sure what I meant there, but "text" wasn't it. "Content" is probably more
accurate, or, I guess "data".

--
Truth,
James Curran
Home: www.noveltheory.com Work: www.njtheater.com
Blog: www.honestillusion.com Day Job: www.partsearch.com
(note new day job!)

[Jon Skeet [C# MVP]]

James Curran <Ja*********@mv ps.org> wrote:

"Jon Skeet [C# MVP]" <sk***@pobox.co m> wrote in message
news:MP******** *************** *@msnews.micros oft.com...

James Curran <Ja*********@mv ps.org> wrote:

The framework's functions appear to just handle the compressing
of text

I don't see anything text-specific there - it's all stream-based as far
as I can see.

Yes, that's correct. The "text" in my message was a misspeak. I'm not
sure what I meant there, but "text" wasn't it. "Content" is probably more
accurate, or, I guess "data".

Right - no problem.

Thinking about it, while it could be confusing, I'm not even sure
you're wrong to call it text within the vocabular of compression.
Certainly in encryption the original message is "plain-text" whether
it's encrypted or not.

Anyway, we all know what we're talking about :)

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Dennis Myrén]

Actually, in my particular case, all i need is the core data
compressor/decompressor.
I use it when generating/parsing binary file fragments rather than
compressing existing files or folders
into ZIP libraries.

But of course, still i surely would like all the features of SharpZipLib
to be provided by System.IO.Compr ession.

--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"James Curran" <Ja*********@mv ps.org> wrote in message
news:ec******** ********@TK2MSF TNGP12.phx.gbl. ..

"Dennis Myrén" <de****@oslokb. no> wrote in message
news:0p******** ***********@new s4.e.nsc.no...

Currently i am using SharpZipLib but (with all respect to SharpZipLib)
built-in compression routines are preferred.

Looking at the docs Jon linked to and the code Drebin posted, it
doesn't
seem directly comparable. SharpZipLib as I recall, creates proper Zip
files, just like PKZip or Winzip (multiple files with internal table of
contents). The framework's functions appear to just handle the
compressing
of text (which, granted, is the hard part, but still leave you some work
to
do).

--
Truth,
James Curran
Home: www.noveltheory.com Work: www.njtheater.com
Blog: www.honestillusion.com Day Job: www.partsearch.com
(note new day job!)