Comby - Structural code search and replace for every language

A more interesting comparison than with Coccinelle is with semgrep (<a href="https:&#x2F;&#x2F;semgrep.dev&#x2F;" rel="nofollow">https:&#x2F;&#x2F;semgrep.dev&#x2F;</a>) since it also supports semantic&#x2F;structural pattern matching over a number of languages, but also adds in a bunch of Boolean logic into the mix, as well as some more advanced semantic features like constant propagation.<p>Curious whether the teams behind these tools are aware of each other? I suppose it&#x27;s unlikely that they&#x27;re not.

Okay wow. I didn&#x27;t tools like this existed! There&#x27;s been more than once where I&#x27;ve found myself in a situation like &quot;find all code like this, change if this, delete if this&quot;. Regex can only get you so far.<p>Does someone know if this or something similar is available as a VSCode extension? It&#x27;d be fun to make one if not!

I believe Sourcegraph uses Comby under the hood to an extent for structural matching as well!

Superb tool. I used Comby to create a massive (3000+ changes) PR in which I ported JS type annotations into TS typings.

I mocked up a prototype for something similar to this using TreeSitter and its query language the other day for some heavy refactoring I had to do. This looks like a really cool project, will have to try it out!

This looks a lot like <a href="https:&#x2F;&#x2F;semgrep.dev&#x2F;" rel="nofollow">https:&#x2F;&#x2F;semgrep.dev&#x2F;</a> Interesting that they are both largely OCaml.

License?<p>Also, how does it compare to Coccinelle?

No support for Zig :(

s&#x2F;every language&#x2F;some languages&#x2F;