[XML-SIG] validating xhtml

[Mike Brown]

Martin v. Loewis wrote:
> This is certainly not your fault - you did not write the DTD. Further
> analysis would be needed whether the fault is with xmlproc, or with
> the DTD. Don't be too impressed that the DTD is published by the W3C -
> even they may make errors.

I think it was an error they decided to live with, by pretending that it was
what they intended to be valid all along. 

XML 1.0 section 2.10 said, of xml:space:

   When declared, it must be given as an enumerated type 
   whose only possible values are "default" and "preserve". 

and the example given was merely this:

   <!ATTLIST poem   xml:space (default|preserve) 'preserve'>

But that same section in XML 1.0 Second Edition says this:

   When declared, it must be given as an enumerated type
   whose values are one or both of "default" and "preserve". 

and adds another example:

  <!ATTLIST pre xml:space (preserve) #FIXED 'preserve'>

It's rather unfortunate for a "clarification", as it is obviously more of an
outright change that is not truly backward compatible -- any self-respecting
parser would enforce checking for "(default|preserve)" because it's a "must"
-- but there you go.

   - Mike
____________________________________________________________________________
  mike j. brown                   |  xml/xslt: http://skew.org/xml/
  denver/boulder, colorado, usa   |  personal: http://hyperreal.org/~mike/