DTD for XHTML contains wrong entity definitions

[abacabadabacaba]

https://html.spec.whatwg.org/multipage/xhtml.html#parsing-xhtml-documents

the public identifiers given in the following list all correspond to the URL given by this link

The DTD linked from there includes the following entity definitions:

<!ENTITY amp "&#x26;">
[...]
<!ENTITY lt "&#x3C;">

These definitions violate XML specification, section 4.6, which requires the replacement text for these entities to be character references to the corresponding characters rather than the characters themselves.

Also, the replacement text for AMP, LT and nvlt entities contains invalid markup, which makes these entities unusable. Probably these should also be replaced with character references.

[annevk]

Would you be interested in patching https://github.com/whatwg/html-build/blob/master/.entity-to-dtd.pl to make this work?