GNU bug report logs - #43016
replace-region-contents takes a lot of time when called from json-pretty-print-buffer

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From: ljell <laszlomail <at> protonmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: "43016 <at> debbugs.gnu.org" <43016 <at> debbugs.gnu.org>, Tassilo Horn <tsdh <at> gnu.org>
Subject: bug#43016: replace-region-contents takes a lot of time when called from json-pretty-print-buffer
Date: Mon, 24 Aug 2020 12:13:15 +0000

[Message part 1 (text/plain, inline)]

>
> Thank you for your report and the data. Is it possible to have the
> file with which you've seen this problem?
>

Looks like the problem occurs only with accented characters present, so I created a json file with them. Attached.

Warning: Long lines!

After opening the file, just run M-x json-pretty-print-buffer  on it to see how long it takes.


If you run M-x json-pretty-print-buffer on the already pretty file then it's much faster,so maybe it's related to the single long line generated by json-encode.

[test.rar (application/octet-stream, attachment)]

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