Agree, but HTML itself doesn't have and doesn't need "transclusion" when HTML is understood to be an SGML vocabulary and SGML has all these things and more, fro

Agree, but HTML itself doesn't have and doesn't need "transclusion" when HTML is understood to be an SGML vocabulary and SGML has all these things and more, from basic sharing of headers/footers and other markup fragments [1] to parametric macro expansion and event-based templating [2]. [1]: http://sgmljs.net/docs/producing-html-tutorial/producing-html-tutorial.html http://sgmljs.net/docs/producing-html-tutorial/producing-htm... [2]: http://sgmljs.net/docs/templating.html http://sgmljs.net/docs/templating.html (Putting transclusion into quotes here because that term is from Ted Nelson and is possibly ill-defined in a HTML/SGML context)