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

David Barnett wrote:

> You're not asking for the output of getmatches(), are you? Or are you
> talking about debugging in gdb? I haven't found any way to query match
> positions from within vim.
>
> The repro case I'm using now is
>
> vim -c "highlight def link RightMargin Error | exec ('match RightMargin
> /\%<42v.\%>41v/')" SOMEFILE
>
> So you don't need any plugins to verify.

The pattern is what I need to reproduce it easily. It's not obvious from
the plugin what patterns it generates.

I don't see it being slow with this example though. But it would be
enough to single step through the code to find out why the "==" to ">="
change matters for this.

Did you try that example with "vim -u NONE -N", is it still slow then?
If not then something else would matter.

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