[vim/vim] conceal does not re-calculate width and wrap lines. (Issue #9443)

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mattn

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Dec 31, 2021, 9:56:43 AM12/31/21
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Steps to reproduce

:source this code.

set columns=80 wrap conceallevel=3
syntax match XXX /X\+/ conceal cchar= 
finish


XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXYYYY

Expected behaviour

YYYY in a line but
image

Version of Vim

8.2.3877

Environment

Windows 11. gvim.exe

Logs and stack traces

No response

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mattn

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Dec 31, 2021, 10:16:55 AM12/31/21
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This issue makes breaking wrapped text in popup-window.

image

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mattn

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Dec 31, 2021, 10:46:19 AM12/31/21
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At least, strange background-color in popup seems to be a bug. Probably, screen_line in screen.c:774 seems to be wrong.

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mtwebb

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Jan 5, 2022, 11:06:04 AM1/5/22
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While outside my current ability to fix, I will happily do any grunt work of testing PRs and the like. The ability to factor conceal when determining wrapping would have a large impact on how I use vim with long form writing.

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Kefei Lu

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Jan 5, 2022, 12:54:15 PM1/5/22
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I'd like to add a visual example here if that helps:

image

image

This is how emacs markdown-mode looks like (with the equivalence of set wrap)

image

image

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Wang Kang

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Jan 9, 2022, 7:46:50 AM1/9/22
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+1

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mattn

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May 18, 2022, 12:10:33 PM5/18/22
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Perhaps I was able to solve this problem with a small impact.

screenshot

#10442

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mattn

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May 18, 2022, 12:31:16 PM5/18/22
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screenshot

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mattn

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May 18, 2022, 12:38:18 PM5/18/22
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Anyone, could you please test #10422 ?

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