Re: [xml-dev] Re: Question external entities and relative URis

[Mike Sokolov <sokolov@ifactory.com>]

Well, according to that, I think the specs happily agree with my 
intuition, which makes me happy, too.  Sorry to be vague; sometimes I 
think it helps to clear away the specifics a bit; what I was thinking was:

A = xml file
B = dtd file (containing defn of &foo; as C using a local URI, like "C")
C = ent file included by dtd as &foo;, say

-Mike

PS If it's really true that the MS XML parser does something different, 
that would be sad.

On 07/19/2010 10:31 AM, David Carlisle wrote:
> On 19/07/2010 15:23, Mike Sokolov wrote:
>> Just an opinion, but it seems to me that in this matter of including
>> files, a guiding principle is modularity.  So if file B includes C using
>> a relative reference, the much more usual case is to expect the link
>> from B->C to be relative to B's location, and not the location of some
>> as-yet-to-be named file (A) that might include B.  If it were the other
>> way, then the B->C nexus wouldn't really be modular: the validity of
>> that reference would depend on the scope in which B was embedded, which
>> usually is not what you want.
>>
>> Full disclosure: I don't really know what the XML specs say, just
>> reasoning from basic faith in rationality :)
>
> but the xml document doesn't directly refer to the file with a 
> relative reference so in the xml entity case it's not at all clear 
> what your A b and C are.
>
> the xml document has a reference & foo ; to an entity named foo  that 
> might be in this file, or another. What the specs 9more or less) say 
> is if that entity is declared using a SYSTEM identifier with a local 
> URI, then that local URI should be resolved relative to the base URI 
> of the entity in which it appears (ie, the URI of the dtd file, not 
> teh URI of the original xml document, if they are different)
>
> David
>
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