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class Tag<string spelling> {
string Spelling = spelling;
bit EndTagOptional = 0;
bit EndTagForbidden = 0;
}
def Em : Tag<"em">;
def Strong : Tag<"strong">;
def Tt : Tag<"tt">;
def I : Tag<"i">;
def B : Tag<"b">;
def Big : Tag<"big">;
def Small : Tag<"small">;
def Strike : Tag<"strike">;
def S : Tag<"s">;
def U : Tag<"u">;
def Font : Tag<"font">;
def A : Tag<"a">;
def Hr : Tag<"hr"> { let EndTagForbidden = 1; }
def Div : Tag<"div">;
def Span : Tag<"span">;
def H1 : Tag<"h1">;
def H2 : Tag<"h2">;
def H3 : Tag<"h3">;
def H4 : Tag<"h4">;
def H5 : Tag<"h5">;
def H6 : Tag<"h6">;
def Code : Tag<"code">;
def Blockquote : Tag<"blockquote">;
def Sub : Tag<"sub">;
def Sup : Tag<"sup">;
def Img : Tag<"img"> { let EndTagForbidden = 1; }
def P : Tag<"p"> { let EndTagOptional = 1; }
def Br : Tag<"br"> { let EndTagForbidden = 1; }
def Pre : Tag<"pre">;
def Ins : Tag<"ins">;
def Del : Tag<"del">;
def Ul : Tag<"ul">;
def Ol : Tag<"ol">;
def Li : Tag<"li"> { let EndTagOptional = 1; }
def Dl : Tag<"dl">;
def Dt : Tag<"dt"> { let EndTagOptional = 1; }
def Dd : Tag<"dd"> { let EndTagOptional = 1; }
def Table : Tag<"table">;
def Caption : Tag<"caption">;
def Thead : Tag<"thead"> { let EndTagOptional = 1; }
def Tfoot : Tag<"tfoot"> { let EndTagOptional = 1; }
def Tbody : Tag<"tbody"> { let EndTagOptional = 1; }
def Colgroup : Tag<"colgroup"> { let EndTagOptional = 1; }
def Col : Tag<"col"> { let EndTagForbidden = 1; }
def Tr : Tag<"tr"> { let EndTagOptional = 1; }
def Th : Tag<"th"> { let EndTagOptional = 1; }
def Td : Tag<"td"> { let EndTagOptional = 1; }
// Define a blacklist of attributes that are not safe to pass through to HTML
// output if the input is untrusted.
//
// FIXME: this should be a whitelist. When changing this to a whitelist, don't
// forget to change the default in the TableGen backend.
class Attribute<string spelling> {
string Spelling = spelling;
bit IsSafeToPassThrough = 1;
}
class EventHandlerContentAttribute<string spelling> : Attribute<spelling> {
let IsSafeToPassThrough = 0;
}
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