Re: [xml] Lists in XML_CATALOG_FILES

[Daniel Veillard <veillard redhat com>]

On Thu, Oct 03, 2002 at 06:18:40PM +0200, Igor Zlatkovic wrote:
> Hi everyone,
>
> The environment variable XML_CATALOG_FILES can be used to redirect the
> catalog lookup to the user's own set of catalogs. The variable can contain a
> list of catalog files. So far, so good.
>
> Now, the function xmlLoadCatalogs says that the files in the list can be
> separated with either a ':' or a space. What about the following
>
>   XML_CATALOG_FILES=file:///etc/catalog:http://catsrv/catalog
>
> How does the software know which colon is separating the two paths? The
> space would work good as a separator, but the colon...?

 yep, I expect filenames there, not URIs

> Nevertheless, the libxml catalog initialisation code (function
> xmlInitializeCatalog) plugs the content of XML_CATALOG_FILES directly into
> the catalog entry. If XML_CATALOG_FILES is set to a list of catalogs, no
> catalog is loaded. If XML_CATALOG_FILES points to a single file, everything
> works as expected.
[...]
> It seems to me that xmlInitializeCatalog function needs some additional
> code. It should expand XML_CATALOG_FILES and produce a list of xmlCatalog
> objects, as necessary. By the same token, a colon should not be alowed as a
> separator. Space is good, perhaps a semicolon would be good as well?
>
> Am I right here, or am I overlooking something? If I am right, I would fix
> the code.

  You're right feel free to fix the code and comment. Note that having 
http based catalogs is not supported right now and I doubt it should really
be, be aware of that. Basically you make all processing dependant on a remote
resource, that's bad.

Daniel

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