Re: [xml] xmlIO extensions

[Morus Walter <morus walter tanto-xipolis de>]

Daniel Veillard writes:
>   Why not it seems it would work fine too.
> But even better, check how the OpenOffice guys did it and
> reuse it if possible !
It's not OpenOffice but there's a virtual file system layer for java
in the apache jakarta project:
http://jakarta.apache.org/commons/sandbox/vfs/

They provide read only access to zip and jar files
http://jakarta.apache.org/commons/sandbox/vfs/filesystems.html#Zip%20and%20Jar

---
URI Format

zip://zip-file-uri[!absolute-path]

jar://zip-file-uri[!absolute-path]

Where zip-file-uri refers to a file of any supported type, including other 
zip files. Note that any ! characters in zip-file-uri must be escaped using 
%21. 
---

Of course one could restrict this to using local files for the zip-file-uri,
but it might be worth considering this syntax.


Regarding OpenOffice, I'm not sure, if they are using URL syntax at all.
Within the *.sxw there's just a META-INF/manifest.xml file listing the
files in the archive just using local names (i.e. 
<manifest:file-entry manifest:media-type="text/xml" 
manifest:full-path="content.xml"/>)
and (from a user point of view) OpenOffice itself just adresses the archive 
as a whole.
But I didn't look at OOs specs or sources.

Morus