5 Doctype to use during filtering. Technically speaking this is not actually
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6 a doctype (as it does not identify a corresponding DTD), but we are using
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7 this name for sake of simplicity. When non-blank, this will override any
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8 older directives like %HTML.XHTML or %HTML.Strict.
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10 '', 'HTML 4.01 Transitional', 'HTML 4.01 Strict', 'XHTML 1.0 Transitional', 'XHTML 1.0 Strict', 'XHTML 1.1'
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