I am looking at this line of EBNF: <zeg> = <zig>|<zag>[<zug><zug>] Does [<zug><zug>] only become available when <zag> is used, or is it always availabl...

I am looking for an official BNF/EBNF for The CLIPS Programming Language, so that I can write a parser/interpreter that groks (understands) CLIPS rules. I have searched online, including the official ...

Is there ways to tell gocc to ignore things in lexical parser? E.g., for 2022-01-18 11:33:21.9885 [21] These are strings that I need to egnore, until - MYKW - Start Active One: 1/18/2022 11:33:21 AM I...

I have a very simple event log format, just I'm having difficulties describing it in BNF (for gocc ). Here is my simple event log format: timestamp nested-event-A Running timestamp Start of nested-eve...