I used to write proto parser using ragel <https://www.colm.net/open-source/ragel/ https://www.colm.net/open-source/ragel/> for work way back as well, it was sur

I used to write proto parser using ragel <https://www.colm.net/open-source/ragel/ https://www.colm.net/open-source/ragel/> for work way back as well, it was surprisingly painless. Think this was way back when protobuf was transitioning to proto3.