Is HTML a context-free language?

Question

Reading some related questions made me think about the theoretical nature of HTML.

I\'m not talking about XHTML-like code here. I\'m talking about stuff like this cr

Answer 1

HTML5 is different from previous HTML versions in that it strictly defines the parsing behaviour of code that isn't completely correct. Pre-HTML5 parsers vary and each do their best to 'guess' the intention of the code author.