XCatalog proposal draft 0.1

[james anderson]

John Cowan wrote:
> 
> This is a proposal for XCatalogs, a system based on SGML/Open
> catalogs (Socats) for translating public identifiers to
> system identifiers in XML.
> 8. Open questions
> 
> Should compliance require support for both syntaxes?

yes. 
? are there mime type to identify these things, or would one trust the
extension in the resource name? or 'autodetect'?

> I think the Socat syntax is essential for backward compatibility
> with existing tools, and it is more compact (important for
> huge catalogs full of Delegate entries), but the XML instance syntax
> is more in the spirit of XML (and XSchema, etc.).
> 
> If both syntaxes are supported, should Delegate and Extend entries
> be allowed to refer from one syntax to another,

yes: what benefit would there be from duplicating delegates / extensions? 

> or should Socat
> catalogs refer only to other Socat catalogs and ditto for XML
> instance catalogs?
> 

? what it the rational / history behind pruning the search at the first
partial match?

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