[pmwiki-users] Producing XHTML 1.0 Strict

[V.Krishn]

Would it very difficult if PmWiki produces XHTML 1.0 Strict output?
One reason for doing would be preparing PmWiki for HTML 5.0 which obsoletes 
some elements and attributes.
example:
 [[<<]] produces <br clear='all' /> , which would not pass XHTML 1.0 Strict as 
well as  HTML 5.0.
Solution is <br class='someclass' />  with style .someclass { clear: both; }

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Regards,
V.Krishn