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From: miha--- via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: 59637@debbugs.gnu.org
Subject: bug#59637: 29.0.50; Should treesit-range-settings support the possibility of separate parser for each region?
Date: Sun, 27 Nov 2022 18:12:42 +0100	[thread overview]
Message-ID: <87v8n0b9th.fsf@miha-pc> (raw)

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As far as I understand, the current behaviour of
treesit-parser-set-included-ranges is that the concatenation of text
from different regions in the same range set is considered as one
program. This means that for this html program

    <html>
      <script>
        /* comment start
      </script>
      <script>
        alert('hello');
      </script>
    </html>

treesitter would consider "alert('hello');" to be inside a comment and
the second script tag would contain an error about missing comment
end.

However, testing this in Firefox, it seems that the first script tag is
the erroneous one here and the alert function call isn't inside a
comment. So I guess the correct way to parse this html document would be
to have two instances of javascript parser, one for each region. On the
other hand, we should consider if this is worth the added complexity and
performance degradation.

Thanks and best regards.

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             reply	other threads:[~2022-11-27 17:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-27 17:12 miha--- via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2022-11-27 17:28 ` bug#59637: 29.0.50; Should treesit-range-settings support the possibility of separate parser for each region? Stefan Kangas
2022-11-28 22:51 ` Yuan Fu

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