I've gotten a lot of mileage from Graphviz over the years. As an example outside of work, I wanted a way to depict parse trees for an article I was writing. So,

I've gotten a lot of mileage from Graphviz over the years. As an example outside of work, I wanted a way to depict parse trees for an article I was writing. So, after I wrote an EBNF parser generator (great fun!), I wrote a little utility to apply a grammar to stdin and emit to stdout a JSON representation of the resulting parse tree; another utility handles converting the JSON to dot, which I can plot at my leisure. https://github.com/reindeereffect/tools-from-blog/tree/master/yakety https://github.com/reindeereffect/tools-from-blog/tree/maste...