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

[Lars Ingebrigtsen]

Tassilo Horn <tsdh@gnu.org> writes:

> That would be sad because except for the performance in some
> cases, it's very nice. :-(

It is indeed very nice.  My guess is that most of the usages of the
function is for shortish JSON structures.  Perhaps we could just
introduce an arbitrary switchover between using replace-region-contents
and plain replacing -- like a hundred K or something?  

-- 
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   bloggy blog: http://lars.ingebrigtsen.no