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Re: visual-line-mode produces erratic behaviour with text properties


From: Paul Rankin
Subject: Re: visual-line-mode produces erratic behaviour with text properties
Date: Fri, 01 Jul 2016 18:29:40 +1000

On Fri, 1 Jul 2016, at 05:55 PM, Eli Zaretskii wrote:
> Super-long lines such as this one slow down the display engine, and
> there are various redisplay optimizations to try to countermand that,
> so perhaps this is one of them.

Do you mean Emacs has redisplay optimisations that may be causing the erratic 
navigation?

Or, are there redisplay optimisations I can implement myself in an affected 
major mode to work around this?

> In general, my recommendation is to stay away of such long lines in
> Emacs.

I can't control this for users of the major mode. It's an edge case, but still.

Thanks



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