[Bug 27973] New: Easy identification of XHTML5

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27973

            Bug ID: 27973
           Summary: Easy identification of XHTML5
           Product: HTML WG
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: minor
          Priority: P2
         Component: HTML5 spec
          Assignee: dave.null@w3.org
          Reporter: stephankreutzer@gmx.net
        QA Contact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-admin@w3.org,
                    public-html-wg-issue-tracking@w3.org

How does a XHTML5 document identify itself in terms of self-descriptiveness, as
there's no identifier in the DOCTYPE declaration or even no DOCTYPE declaration
at all? Will simple processing applications or general purpose XML tools be
required to make elaborate guesses by analyzing large portions, if not all of
the document before they'll be able to determine against which schema they're
supposed to validate? What happens if a future version of XHTML is needed,
which will be or won't be backward compatible?

If seen in the larger XML context and not only in browser context, I would
really like to know how to distinguish XHTML5 easily from other XHTML and
self-identifying XML formats. I couldn't find information about it except that
XHTML5 is “the one without identification” (my impression).

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Received on Saturday, 7 February 2015 13:20:33 UTC