http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd+isn't very useful if I'm on an airplane at 35,000 feet.
../../xml/dtd/docbookx.xmlisn't useful +
/export/home/fred/docbook412/docbookx.xml.
catalog files+can be used to map public and system identifiers and other URIs to +local files (or just other URIs).
out of the boxwith their applications +(such as Xalan and Saxon), but developers may also be interested in +the +
mainstylesheet:
knows. Sure, it sounds +a little silly, but this is currently the mechanism being used for namespaces. +Applications know what the semantics of namespaced elements are because they +recognize the namespace URI.
+for any public identifier that begins withhttp://www.example.com/catalog
-//Example//. +The advantage of delegate in this case is that I don't have to parse that +catalog file unless I encounter a public identifier that I reasonably expect +to find there.
not an official committee work product and may not reflect the +consensus opinion of the committee.
.urn:oasis:names:tc:entity:xmlns:xml:catalog
public, the URI supplied in the matching +
system, the system identifier in the document will be +used. (If the catalog contained a matching
publicin your catalogs.
yesis equivalent to +
prefer="public".
This is just a trivial example.
+