For safety reasons, whenever you add or change something in Snudown,
you should add a few test-cases that demonstrate your change and do a
fuzzing run in /fuzzing by running make afl. Make sure you have cmake
installed and in your PATH!
This uses American Fuzzy Lop and a modified Google Gumbo to ensure there is no way to generate invalid HTML, and that there are no unsafe memory operations.
See American Fuzzy Lop's instructions for your platform to get started.