Re: Can we make set_point_both less expensive?

[Daniel Colascione]

On 03/16/2015 11:05 AM, Eli Zaretskii wrote:
>> From: Stefan Monnier <address@hidden>
>> Cc: address@hidden, address@hidden
>> Date: Mon, 16 Mar 2015 13:36:40 -0400
>>
>>>> what users of those features normally want is to catch movement of
>>>> the cursor
>>> You mean, we should do this in redisplay?
>>
>> Probably in pre-redisplay-hook or in pre/post-command-hook, yes.
> 
> That contradicts the "catch movement of cursor" idea: redisplay could
> well move point from where it is found before redisplay, as you know.

When does that matter? The intent is to get editing to behave _as if_
invisible regions were intangible, and the existing invisible motion
behavior seems mostly up to the task.

(There's a problem where point remains inside invisible text if text
around point is made newly invisible without moving point.)

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