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From David Crossley <cross...@indexgeo.com.au>
Subject Re: [Bugs] URLSource
Date Fri, 17 May 2002 02:33:04 GMT
J.Pietschmann wrote:
> Stefano Mazzocchi wrote:
> > NOTE: there is no official indication on how the file: URI should be
> > addressed, but all these
> > 
> >    file:/file
> >    file://file
> >    file:///file
> > 
> > are all valid URIs and should point to the same file (at least, this was
> > my understanding).
> 
> Your understanding is wrong. Only the last is a valid URI.
> The RFC for this appears to be
>    http://www.rfc-editor.org/rfc/rfc2396.txt
> and some predecessors.
> 
> > It could be possible to add
> > 
> >    file:file
> > 
> > to indicate a relative location.
> 
> This is wrong too. An URI starting with an URI scheme
> identificator (like file:) is *always* an absolute URI.
> This:
>    /file
> is an *relative* URI, despite being an *absolute* path.
> 
> > This is normally achieved by avoiding
> > to indicate the protocol (such as in "file"), but since we need a
> > protocol to identify the handler, "file:file" might just be a way to
> > encode relativity in file positioning.
> 
> A relative URI is resolved against a base URI, which sepcifies
> the URI scheme. If your base URI is a file URL, *all* relative
> URIs encountered are resolved to files. You can't have a base
> HTTP URI and suddenly have a relative URI point to a file.
> 
> Well, hope this helps:
>  http://marc.theaimsgroup.com/?l=xml-cocoon-dev&m=102027988321347&w=2
>  Re: changed behaviour with source resolving

As part of that earlier thread i added some corrections to
Cocoon xdocs to encourage proper use of file: URLs.
Those docs have not yet made it to the website, so start at 
 build/cocoon/docs/faq/faq-sitemap.html#faq-12
--David


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