One useful tool beyond regular grep for counting the number of times a pattern appears is ast-grep [1], which allows for more sophisticated rules. [1] https://ast-grep.github.io/. - Source: Hacker News / 4 months ago

The amazing ast-grep tool does not support vue and scss by default but can be configured to do so. - Source: dev.to / 5 months ago

Hi! ast-grep[1] author here. It is a tree-sitter based syntax tool to search tool. I wonder how you transition from tree-sitter to other builtin parsers? Tree-sitter gave a unified interface to all languages. Using language native parsers will require significant work for various FFI if I am not wrong. [1]: https://ast-grep.github.io/. - Source: Hacker News / 7 months ago

I’ve been looking at codemod tools recently, just as a way to extend my editing toolbox. I came across https://ast-grep.github.io/, which looks like it might address part of this problem. My initial test case was to locate all calls to a method where a specific argument was ‘true’, and it handled that well - that’s the kind of thing an IDE seems to struggle with. I’m not yet sure whether it could handle renaming a... - Source: Hacker News / 8 months ago

Astgrep is a very useful tool. https://ast-grep.github.io/ It's not as easy to use as grep but I think one can script it to be nearly so. It has huge power but without learning it all one can do searches that grep finds difficult. e.g. Finding all the locations where a method is called and showing the parameters even if they are on multiple lines. Ultragrep - I don't love this quite as much but it does have a way... - Source: Hacker News / 9 months ago

Https://rr-project.org/ for languages that can be debugged by gdb. - Source: Hacker News / about 10 hours ago

I've never used it but sounds like https://rr-project.org/. - Source: Hacker News / 3 days ago

I frequently try to mention how Java with JRebel is the closest to the Lisp experience I've found with non-Lisp, it's more dynamic feeling than so-called dynamic languages. Having something like the condition system being ubiquitous would be golden. (I'm aware there is a Java port though I never got around to playing with it and it doesn't solve the problem of other people's code not using it..) My last big job... - Source: Hacker News / about 1 month ago

We are currently working on two "backends" where recording works in different ways. For the scripting languages and smart contract/ZK languages, we instrument the interpreters using high level hooking API-s or direct patches, and we produce a trace. For system languages, we directly build on top of RR[1] recordings for now: RR can record multiple processes, and it works in userland. IIRC it doesn't support... - Source: Hacker News / 3 months ago

We are also planning to develop a distributed tracing platform, similar to Jaeger and OpenTelemetry, that continuously records the execution of many distributed processes (e.g. micro-services). Unlike the existing platforms, which capture only message flows and require you to make educated guesses when some anomaly is observed, our system will let you accurately replay the processing code for each message to... - Source: Hacker News / 3 months ago