Re: [xml] xmlIO extensions

[Daniel Veillard <veillard redhat com>]

On Thu, Oct 30, 2003 at 10:02:46AM +0100, Morus Walter wrote:
> 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.

  Okay, looking at the example, yes this should work.
  zip:http://somehost/downloads/somefile.zip!/file.xml
is interesting, however forcing the paths within the archive to be
absolute sounds a bit strange, what happens if the / after ! is missing.
Writing back when not using a pure file access is not realistic but could
be expressed, that's rather good.

> 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.

  yeah, that should be asked there.

Daniel

-- 
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veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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