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Re: How to add pseudo vector types

From: Stefan Monnier
Subject: Re: How to add pseudo vector types
Date: Fri, 23 Jul 2021 10:07:42 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

> But that's how the current font-lock and indentation work: they never
> look beyond the narrowing limits.

Not quite: that's true for indentation, but for font-lock we have
`font-lock-dont-widen` (i.e. by default, font-lock widens temporarily
while it does its job).

For TS, given the cost associated with changing the bounds, I think it
would make a lot of sense to ignore narrowing (and maybe provide some
separate way to specify bounds, for the rare cases like Info and Rmail
where a buffer contains "a collection of things" and we only want to
parse/manipulate one of those things at any given time).


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