MediaWiki

Various MediaWiki 1.5.6 parser tests, that fail HTML validation:

Test	Wiki Source	Validate HTML	Tidy HTML	Visible Artefacts, and if so what
MediaWiki/Parser1	Export Wiki Source	W3C Validator	Tidy HTML	Yes - stikes out almost all text.
MediaWiki/Parser1-hidden	Export Wiki Source	W3C Validator	Tidy HTML	Yes - hides almost all text, which also makes all page links unavailable.
MediaWiki/Parser2	Export Wiki Source	W3C Validator	Tidy HTML	No
MediaWiki/Parser3	Export Wiki Source	W3C Validator	Tidy HTML	No
MediaWiki/Parser4	Export Wiki Source	W3C Validator	Tidy HTML	No
MediaWiki/Parser5	Export Wiki Source	W3C Validator	Tidy HTML	Yes - shrinks font, moves the top page action links up about 5 pixels and left about 10 pixels.
MediaWiki/Parser6	Export Wiki Source	W3C Validator	Tidy HTML	Yes - shrinks font, moves the left navigation bar down about 160 pixels, strikes out almost all text.
MediaWiki/Parser7	Export Wiki Source	W3C Validator	Tidy HTML	No
MediaWiki/Parser8	Export Wiki Source	W3C Validator	Tidy HTML	No
MediaWiki/Parser9	Export Wiki Source	W3C Validator	Tidy HTML	No
MediaWiki/Parser10	Export Wiki Source	W3C Validator	Tidy HTML	No
MediaWiki/Parser11	Export Wiki Source	W3C Validator	Tidy HTML	No
MediaWiki/Parser12	Export Wiki Source	W3C Validator	Tidy HTML	No
MediaWiki/Parser13	Export Wiki Source	W3C Validator	Tidy HTML	No. Drops the '<a href="xxx' string.