> Problem Description.
>
> Suppose you have a line in a window that is longer than the window
> width and that the 'wrap' option is on. That line will wrap onto the
> next screen line. Now suppose we choose to conceal a string of two or
> more characters that appear on the first line. What I see, once the
> conceal is enabled, is the text on the first line is shortened, as one
> might expect, but the excess characters on the 2'nd line remain there.
> I expected them to fill-up the newly available space on the first line
> but they do not. Is this expected behavior or a bug?
>
> This behavior can be demonstrated with the following ex-commands:
>
> " create a line longer than the current window
> let text = "HIDEME" . repeat("x",winwidth(0))
> call setline(1, text)
> set wrap nonumber
> " there will be 6 characters on the 2'nd line
> " setup for conceal:
> set conceallevel=1
> set concealcursor=nv
> syntax on
> " make it so:
> syntax match hideMe "HIDEME" conceal cchar=h
> " line 1 is shorter by 5 chars but there are still 6 characters on line 2
> " now if you set nowrap, the 2'nd line will move onto the 1'st
> set nowrap
>
> I came across this because I was investigating the failure of one of
> your validation tests- I was running it in a window much smaller than
> 80x24. Normally that test would not be allowed to run but that policy
> is a discussion for another day and thread.
It's not ideal, but this is the expected behavior. If the wrapping
would depend on what is concealed, computing the position of a character
becomes quite expensive. So currently wrapping is done before
concealing. Not sure how much work it is and what the performance
penalty would be to make this work differently.
--
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-- Peter, Ghostbusters
/// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
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