SGML and XML are formal metalanguage facilities for defining markup languages. SGML has the full power to configure a set of features for markup languages, whereas XML has a fixed set of these SGML features. Since XML is a profile of SGML (rather like a p
Taxonomy of Markup · I use a taxonomy of markup which I'm pretty sure was first advanced in the seminal November 1987 CACM article Markup systems and the future of scholarly text processing, by Coombs, Renear, and DeRose, which was the first place I ever