Agreed. They still do have there place though. I, for instance, was able to import the MySQL grammar for Antlr4 from the github Antlr4 grammar repository and g

Agreed. They still do have there place though. I, for instance, was able to import the MySQL grammar for Antlr4 from the github Antlr4 grammar repository and got it working. I use it to mangle table names of all mysql requests during tests to be able to easily isolate tests within a single database that would otherwise stomp on each other. But I don't think I'd use one for any custom parsing, like my own compiler or any grammar I get to define.