[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XHTML 5 and validation
OK David and Jirka, at least we are getting closer to a solution. It turns out, that all what I have said so far is true for W3C Markup Validator. But Validator.nu has some options you can use to preset it to use the XHTML5 schema, but still it does not allow to validate my XHTML5 document when sent with "text/html" unless I also check the box "Be lax about HTTP Content-Type". I guess that the above can be used both when we want to validate XHTML5 using mimetype "text/html" for convenience (when I upload my document to my webserver I will use mimetype "application/xhtml+xml"), and also when we want to use well-formed HTML5 and lower-case for element and attribute names to be served with mimetype "text/html" to the browsers that don't understand "application/xhtml+xml" (today only <=IE8). But somehow I feel I am I right also when it comes to Validator.nu (morally speaking). For years and implemented all over the place, we have been used to get the validation we expect in one step. In Opera I use Ctrl+Alt-Shift-U. We are not going to get validation in one step with XHTML5 for many years to come in very many editors and tools. We cannot even use the W3C Markup Validator at the moment but must find validators like Validator.nu and experiment with its settings. Some might even need a tutorial or help at this mailing list! This is not good news for XHTML5. Validation for HTML5 on the other hand works as expected right out of the box. This is a huge disadvantage for XHTML5, could even be enough to kill it even as a minority position. A solution could be to let Validators accept the document as XHTML5 if the XML declaration is used before the DOCTYPE. The validator could then give a warning if mimetype "application/xhtml+xml" or similar is not used. And in XML Editors I feel that it is important that validation of XHTML5 is right out of the box as users would expect it to work. Ps 1) Very nice with the XHTML5 preset in Validator.nu. It is first time I have seen a link to the schema. Schematron! Is that the way it is going to be, no DTD or XML Schema? Ps 2) And thanks for the link to "Polyglot Markup: HTML-Compatible XHTML Documents, W3C Working Draft 05 April 2011. A whole Recommendation! Cheers, Jesper Tverskov http://www.xmlplease.com
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