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From Julian Hyde <>
Subject Re: [DISCUSS] ANTLR4 parse template for Calcite ?
Date Thu, 22 Aug 2019 06:15:17 GMT
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 <> 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

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