From: Yuan Fu <casouri@gmail.com>
To: Mickey Petersen <mickey@fyeah.org>
Cc: emacs-devel@gnu.org
Subject: Re: Status update of tree-sitter features
Date: Wed, 28 Dec 2022 16:15:45 -0800 [thread overview]
Message-ID: <FECF10D1-1C43-4E6E-9971-0BA709B183A6@gmail.com> (raw)
In-Reply-To: <87mt77cz0x.fsf@fyeah.org>
>
> Looks useful. But this, I think, goes back to the issue I raised with you in an email: that queries are recursive, as each query is (I pressume this is how it is done in tree-sitter) applied to each node in the tree. That makes it very hard to build a query that pattern matches against nested nodes only once. It is very hard, when you have recursive queries with self-similar matches, to filter out recursed matches. Particularly when you are writing generic code that merely acts on the output of arbitrary queries.
>
> #pred is surely no different to applying `seq-filter' or similar to the query result, no?
No, I don’t think there’s any significant difference. #pred is just a bit nicer for other people to use the query, because the filter is embedded in the query.
Yuan
next prev parent reply other threads:[~2022-12-29 0:15 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-28 9:44 Status update of tree-sitter features Yuan Fu
2022-12-28 15:40 ` Mickey Petersen
2022-12-29 0:15 ` Yuan Fu [this message]
2022-12-28 23:27 ` Dmitry Gutov
2022-12-29 0:23 ` Yuan Fu
2022-12-29 0:34 ` Dmitry Gutov
2022-12-29 9:21 ` Yuan Fu
2022-12-29 16:38 ` Dmitry Gutov
2022-12-30 11:16 ` Yuan Fu
2022-12-30 23:41 ` Dmitry Gutov
2022-12-31 22:15 ` Yuan Fu
2022-12-29 3:28 ` Stefan Monnier
2022-12-29 9:23 ` Yuan Fu
2022-12-30 14:27 ` Jostein Kjønigsen
2022-12-30 15:37 ` Eli Zaretskii
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