Hello All,
I believe I've discovered a bug in colorcolumn (and possibly
textwidth) handling in Vim. I discovered it a little while ago, but
only recently was able to spend some time and make sure that it wasn't
a problem I introduced somehow.
I can trigger it by editing two files: A.txt and B.txt. Fire up gvim with:
gvim -u NONE -U NONE A.txt B.txt
Next, run this series of commands:
:setlocal tw=80
:set colorcolumn=+1
:buffer 2
:set tw?
textwidth=0
:set colorcolumn?
colorcolumn=+1
At this point, B.txt should be shown, but notice something: the
colorcolumn is present event though the textwidth is 0, but you still
see the colorcolumn which should be hidden. I believe this is the
first bug.
Now switch back to the first buffer:
:buffer 1
:set tw?
textwidth=0
:set colorcolumn?
colorcolumn=+1
The colorcolumn is still present, but now textwidth is reporting back
0 instead of 80--which seems like another bug.
I've also seen where I've been editing a file that gets textwidth set
locally via a FileType autocmd, and then switch to a file that leaves
the textwidth set to 0. As with the above, the textwidth=0 file is
still showing the colorcolumn when it shouldn't. Then I switch back
to the original buffer to find the colorcolumn missing, but textwidth
is still set to 80. I suspect the bugs between the cases are related.
Let me know if there's something more that I can do to help. I'm
still getting familiar with Vim's code base, or I'd be presenting a
patch right now. :-)
-John
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