I think those are mostly programming languages grammars - for logs you will likely need something different. And even for programming languages it might be worth to develop a custom grammar depending on your use case (because of speed and simplicity if you don't need to support all the language constructs and perhaps only parse function definitions, for example)

Not my announcements, cross-posting here as I believe they’re relevant:

https://clojurians.slack.com/archives/C06MAR553/p1596540005363400

https://clojurians.slack.com/archives/C06MAR553/p1596540365364400