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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XHTML 5 and validation
 On Wed, May 18, 2011 at 5:11 PM, David Carlisle <davidc@nag.co.uk> wrote: > why can't you set the parser to xml and the schema to html5 ? Why should I? How could it help? The problem is not to get my XHTML document with an XML declaration and <!DOCTYPE html> and file extension ".html" validated as XHTML5. But it only happens if I use mimetype "application/xhtml+xml" or similar. As far as I know, at least that is what I normally do, I need to fine tune a webserver to supply that mimetype or to set it with server-side code. In the good old days of XHTML 1.0 and XHTML 1.1, I could get my documents validated against there proper DTDs just by sending them with the "text/html" default mimetype. That is not the case with XHTML5. And makes XHTML5 much more difficult to use, at least as long as the validators use the mimetype to detect if a document using <!DOCTYPE html> wants to be validated as HTML5 or XHTML5. And both David and Jirka ignore the other part of my question. We have no way, with the mentioned Validators, to validate if an HTML5 document is well-formed and use lower-case consistently for element and attribute names. As it is now we can only choose between XHTML5 with mimetype "application/xhtml+xml" or similar, and HTML5 that does not need to be well-formed and where any combination of upper and lower case is allowed in the same document. If the above is true, it is not very likely to see well-formed HTML5 with consistent use of lower case in the future and it is not very likely that more than a handful of people (including me) will use XHTML5 with the proper mimetype. Cheers Jesper Tverskov http://www.xmlplease.com 
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