Xml in packaging system

David Leimbach leimy2k at mac.com
Thu Oct 30 21:26:33 PST 2003

Just as an aside... Over at opendarwin.org we are working on a new 
archive called xar which uses
XML Table of Contents.  This lends some nice abilities like random 
access to the byte streams.

Its still in early development and we wouldn't ming having more 
developers from another OS project talk about
their concerns on the lists I don't think.


It may or may not interest you but its something else that's out there.


On Oct 30, 2003, at 5:10 PM, Vadim Chekan wrote:

Also it would allow to compete several tools as soon as data format 
(called "schema" in xml language) is stable.
I think this is a good example of a problem not to use xml with.
If this were a talk about sending electronic data and to use something
such as ANSI X.12 v.s. XML, XML would be the best choice. XML
should be best left for electronic data interchange and not 
I'm afraid I do not get what you mean. Why do you think that xml has 
so limited applicable area?

You can think about xml as about a tree like data format with custom 
attributes feature. And a bunch of tools provided for format 
verification(schema), query language(xpath), transformation(xsl) etc. 
It does not sound like definition for "electronic data interchange".
Why "interchange" only?
Why not "generic-purposes hierarchical data format"?

Ok. Finaly it can be something else, not xml. Xml is just an example. 
Why I really wrote the mail is to tell which features I'd like to see 
in port system. It is flexible n-level depth tree structure, and some 
easy way to parse port attributes. At the moment I believe xml is good 
choise taking into account features I wish.

Vadim Chekan

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