Re: [dev] [sandy] [PATCH] VIM key bindings.

From: Dimitris Zervas <>
Date: Fri, 11 Jul 2014 01:43:16 +0300

On July 11, 2014 1:32:41 AM EEST, Dimitris Papastamos <> wrote:
>On Fri, Jul 11, 2014 at 01:26:38AM +0300, Dimitris Zervas wrote:
>> But how are you going to deal with lines longer than the capacity of
>a line? or buffers longer than the capacity of buffer?
>You have to resize the buffer.
>There are some clever ways to expand the buffer in O(sqrt(N))
>extra space (assuming you actually want to preallocate it in advance).
>The common solution is to double the capacity and realloc().
>Another thing you can do is to only preallocate a fixed size buffer
>and add to a list of buffers. Every time you cross block boundary, you
>a new buffer and attach it at the end of your list.
>There are many ways to do this, I'd go for the simplest approach in
>terms of code
>readability and stop worrying about performance.
>If it is slow or memory hungry, it can be fixed later incrementally.
Hmm, well yes...
One-line code was always a problem (ex. machine generated code).
Realloc is indeed the simplest approach I can think of, but I want to deal with it and keep the code at a sane condition.

First of all, we haven't even agree in which data structure will we use.
Buffer gap, piece table, or pointer array?

I have no idea of the first 2 (and my English fail me, as I can't understand a lot of the pdfs given)
Received on Fri Jul 11 2014 - 00:43:16 CEST

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