Plot twist: the publisher just looked into the future. I’m currently building an EBNF parser for my project, C³ (C cubed), which allows you to define arbitrary grammar at the very beginning of a file to seamlessly mix strings and syntax from Python, JS, or any custom DSL.
While C++ was just a simple iteration, C³ aims to be a paradigm shift. If you see JavaScript DOM manipulation code on a C++ book cover, it’s not a stock photo blunder anymore — it’s just a valid source file after a custom EBNF header. The project is currently in private development, but I'm considering launching it as an online service. Stay tuned!