This is sure a FAQ. . .

xs:import plays _two_ roles:

1) It allows references by QName to components in namespaces other
than the target namespace of the enclosing <xs:schema>;

2) It provides a hint about where to find a schema document for that
namespace.

The first very clearly only works within single schema documents.
<xs:include> is _not_ a text substitution facility.

The relevant constraint [1] says:

  "For a =B7QName=B7 to resolve to a schema component . . . the
  =B7namespace name=B7 of the =B7QName=B7 is the same as one of the follo=
wing:

    * The =B7actual value=B7 of the targetNamespace [attribute] of the
      <schema> element information item of the schema document
      containing the =B7QName=B7.

    * The =B7actual value=B7 of the namespace [attribute] of some <import=
>
      element information item contained in the <schema> element
      information item _of that schema document_ [emphasis added].

ht
  
[1] http://www.w3.org/TR/2004/PER-xmlschema-1-20040318/#src-resolve
-- 
 Henry S. Thompson, HCRC Language Technology Group, University of Edinbur=
gh
                     Half-time member of W3C Team
    2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
            Fax: (44) 131 650-4587, e-mail: ht@i...
                   URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged =
spam]

From nobody@w...  Thu Jul  8 14:21:33 2004
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