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Re: How to add pseudo vector types

From: Clément Pit-Claudel
Subject: Re: How to add pseudo vector types
Date: Wed, 21 Jul 2021 09:38:31 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

On 7/21/21 7:26 AM, Eli Zaretskii wrote:
> I still don't see the point.  Can you describe in more detail what
> would you suggest doing with the list of gap changes?  Just take a
> specific example of a small set of gap changes and tell how to use
> that.

I can try, but the idea was half-baked from the start, so I'm not sure how much 
value it will bring.  All I was saying is that depending on how robust TS is, 
feeding it:

   <valuable text><small bit of the gap because the gap moved while TS was 
scanning><more valuable data>

and then, knowing that the gap had moved, re-feeding it just the area that 
corresponds to the places around the boundaries of the gap might yield a 

So if the buffer is XYYGGGZ, where G is the gap, and becomes XGGIYYZ while 
we're scanning because of cursor motion + an insertion, then TS might see 
XYGIYYZ, due to concurrent mutations; but if we recorded that the gap moved and 
insertions happened at -#####---, then we can re-feed GGIYY to TS (omitting the 
Gs, of course), and hopefully it can reuse the parse of X and Z.  If X and Z 
are long enough, that can be valuable.

Alternatively, keeping the list of changes allows us to maintain a copy of the 
buffer that TS uses for scanning, with updates delayed until TS is done 

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