after html;parse-error;Tag <$0> is not allowed after the end tag </html>.
bare ero;tokenize-error;The & character must introduce a reference.
bare stago;tokenize-error;A < character is not followed by tag name or by a ! character.
bare nero;tokenize-error;The decimal representation of the code position of a character must be specified after &#.
bare hcro;tokenize-error;The hexadecimal representation of the code position of a character must be specified after &#x.
dash in comment;tokenize-error;There is a -- sequence in a comment.
duplicate attribute;tokenize-error;There are two attributes with same name.
nestc;tokenize-error;Void element syntax (/>) cannot be used for this element.
pio;tokenize-error;Processing instruction (<?...?>) cannot be used.
after head;parse-error;The $0 element cannot be inserted between head and body elements.
DOCTYPE in the middle;parse-error;A DOCTYPE appears after any element or data character has been seen.
in a:a;parse-error;Anchor cannot be nested.
in body;parse-error;Tag <$0> is not allowed in body.
in table;parse-error;Tag <$0> is not allowed in table.
in table:#character;parse-error;Data character is not allowed in table.
missing start tag:tr;parse-error;Start tag of tr element is missing.
no DOCTYPE;parse-error;This document does not start with the DOCTYPE.
not closed;parse-error;Element $0 is not closed.
not HTML5;parse-error;This document is written in an old version of HTML.
unmatched end tag;parse-error;Element $0 is not opened.
character not allowed;content-model-error;Data character is not allowed in this context.
child element missing;content-model-error;There must be a $0 element as a child of this element.
child element missing:td|th;content-model-error;There must be a td or th element as a child of this element.
element not allowed;content-model-error;This element is not allowed in this context.
attribute missing;attribute-error;Required attribute $0 is not specified.
in HTML:xml:lang;attribute-error;The xml:lang attribute is not allowed in HTML document.
in XML:charset;attribute-error;The charset attribute is not allowed in XML document.
in XML:lang;attribute-error;The lang attribute is not allowed in XML document.
in XML:xmlns;attribute-error;The xmlns attribute in the null namespace is not allowed in XHTML document. The document is non-conforming.
enumerated:invalid;attribute-value-error;This attribute only allow a limited set of values and the specified value is not one of them.
duplicate ID;attribute-value-error;This identifier has already been assigned to another element.
link type:bad context;attribute-value-error;The link type $0 cannot be specified for this element.
link type:non-conforming;attribute-value-error;The link type $0 is non-conforming.
reserved browsing context name;attribute-value-error;This browsing context name is reserved.
s:link type:proposed;attribute-value-warning should;Link type $0 is proposed but not accepted yet; it should not be used until it has been accepted.
table:colspan creates column with no anchored cell;table-model-error;This colspan attribute results in creating a table column that does not contain any cell anchored to it.
table:no cell in last row;table-model-error;The table has no cell (td or th) in the last row.
s:IMT:obsolete subtype;should;An obsolete subtype is used.
s:IMT:private subtype;should;A private (x- or x.) subtype is used.
s:IMT:unregistered subtype;should;The subtype is not registered to IANA.
m:URI::syntax error;must;This string is syntactically not an IRI.
s:URI::dot-segment;should;Dot-segment (. or ..) should not occur in an absolute reference.
s:URI::empty path;should;This IRI should explicitly end with /.
s:URI::lowercase hexadecimal digit;should;Hexadecimal digit in percent-encoding should be in lowercase.
s:URI::percent-encoded unreserved;should;An unreserved character is percent-encoded.
unsupported:attribute;unsupported;This attribute is not supported by the conformance checker; it might or might not be conforming.
unsupported:element;unsupported;This element is not supported by the conformance checker; it might or might not be conforming.
unsupported:link type;unsupported;The link type $0 is not standardized or registered at the time of the release of the conformance checker; it is non-conforming unless it has now been registered.
unsupported:event handler;unsupported;Conformance checking for event handler attribute is not supported; it might or might not be conforming.
unsupported:language tag;unsupported;Conformance checking for language tag is not supported; it might or might not be conforming.
unsupported:media query;unsupported;Conformance checking for media query is not supported; it might or might not be conforming.
unsupported:script;unsupported;Conformance checking for script language $0 is not supported; it might or might not be conforming.
unsupported:style;unsupported;Conformance checking for style language $0 is not supported; it might or might not be conforming.
manakaiCompatMode:quirks;;Quirks Mode
manakaiCompatMode:limited quirks;;Limited Quirks Mode
manakaiCompatMode:no quirks;;No Quirks Mode
manakaiIsHTML:1;;HTML Document
manakaiIsHTML:0;;XML Document