I wish I had known about cog some 14 years ago when I implemented exactly the same thing (https://github.com/ot/inpytex https://github.com/ot/inpytex). It was

I wish I had known about cog some 14 years ago when I implemented exactly the same thing (https://github.com/ot/inpytex https://github.com/ot/inpytex). It was made for LaTeX files but could have worked with anything. It even uses the same checksum protection! I wonder how many people independently came up with the same idea.