7169Re: [XSL-FO] Schema definition
- May 1, 2006At 2006-05-01 12:51 -0400, Steve Pruitt wrote:
>Does anyone know where a W3 Schema definition for XSL can be found? IThere is no official schema (and while I've seen unofficial DTDs and
>have searched, but cannot find anything satisfactory.
I've heard of an unofficial RELAX-NG schema, I haven't heard of a W3C Schema).
While RELAX-NG is rich enough to express the constraints of the
vocabulary, neither DTD nor W3C Schema are powerful enough. Just for
example, the <basic-link> element has either an internal-destination=
or external-destination= attribute ... not neither and not both. You
can say that in RELAX-NG-speak, but not in DTD-speak nor XSD-speak.
Why do you think you need it? Processors can be validating the
content as they work on it if they wish ... it is their
responsibility to detect errors.
I hope this helps.
. . . . . . . . Ken
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