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Rob Lugt wrote: > > > > > > > Jonathan, I like this proposal... a lot. Unless I am missing something I > > imagine others will feel the same. It has the advantage of leaving > > EntityResolver, DTDHandler and Locator unchanged, but seems to provide the > > required information. > > > > Unfortunately I can think of at least one example where it would not give > the correct value. If the original system identifier was absolute, the > "difference" algorithm could still result in a relative URI. This, > presumably, would not be the desired outcome. > It depends on what the desired outcome is, and what the intentions of the entity catalog remapping are. For a class of baseURIs and absoluteURIs it will be obvious that the "difference" may only share a "http:" scheme (for example), so this will be obvious. I haven't investigated for which range of URIs this is helpful etc. I am just trying to come up with a reasonable solution that does not depend on changing a huge number of installed parsers, and hence will facilitate the adoption of entity resolution software. -Jonathan
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