Re: vim-7.4.389 UI extremely sluggish with custom syntax highlighting plugins

David Barnett wrote:

> Looks like it's patch 7.4.362:
>
> Problem: When matchaddpos() uses a length smaller than the number of
> bytes
> in the (last) character the highlight continues until the end of
> the line.
> Solution: Change condition from equal to larger-or-equal.
> Files: src/screen.c
>
>
> It's a very small change but apparently problematic. Can it be reverted or
> rethought?

I'm glad you could pinpoint it. I assumed that when the condition
evaluates to true the match information would be updated. But perhaps
that doesn't happen in this case and it searches for a match every time.

Needs some debugging to figure out what happens. What matches does this
plugin add when it's slow?

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