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Re: How is text properties stored?
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From: |
Eli Zaretskii |
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Subject: |
Re: How is text properties stored? |
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Date: |
Thu, 09 May 2019 08:41:23 +0300 |
> From: Yuan Fu <address@hidden>
> Date: Wed, 8 May 2019 21:41:45 -0400
> Cc: address@hidden
>
> IIUC, position of a particular interval is calculated whenever needed;
No, positions of intervals are continuously maintained as side effect
of editing commands that change buffer text.
> looking for the property in a particular position is done via binary search;
Yes. See find_interval.
> and when a user inserts text, only the interval under point is affected,
> is that correct?
Not exactly, insertion also affects all the ancestors of the interval
at point. See adjust_intervals_for_insertion.