ANTLR isn’t significantly better than, or worse than, JavaCC, but it’s different. So translating to ANTLR would be a rewrite, and would be a HUGE amount of work.
> On Aug 21, 2019, at 8:01 PM, Danny Chan <yuzhao....@gmail.com> wrote: > > Now some of our fellows want to do the syntax promote in the WEB page, and > they what a parser in the front-page; The ANTLR4 can generate JS parser > directly but JAVACC couldn’t. > > So I’m wondering do you have the similar requests ? And do you think there is > necessity to support ANTLR4 g4 file in Calcite ? > > > Best, > Danny Chan