Re: First line starting with space affects cursor position when switching buffers

Am 02.06.2018 um 09:29 schrieb Bram Moolenaar:
>
> Andy Wokula wrote:
>
>> Am 01.06.2018 um 08:25 schrieb dmccooey@comcast.net:
>>> Hello,
>>>
>>> I have encountered what appears to be a bug in vim,
>>> but it might be a feature that I would like to disable.
>>>
>>> To reproduce the problem:
>>>
>>> Use vim to create a new file, and add 10 or so lines of text to the file.
>>> In the first line, put at least two characters, and make sure the first character is a space or tab.
>>> Place the cursor on the last line (or any line other than the first line).
>>> Save the file (:w) and switch (:e) to view another file.
>>> Switch back (:e) to the original file.
>>> Notice that the cursor is on the first line, not where it was originally.
>>>
>>> I am using vim 8.0 for Mac.
>>>
>>> Dave McCooey
>>
>> I've seen this too for a long time (before v8.0), but didn't bother to investigate ...
>> It's easy to "fix": just don't start the first line with whitespace.
>>
>> Ok, I did some bisecting (first time ^^):
>>
>> gvim-v7-4-674.exe (and earlier) works ok
>> gvim-v7-4-675.exe (and later) shows the bug
>>
>> Someone should take a look at Patch 7.4.675
>
> That patch looks fine.

There must be something wrong with this patch.

> Vim normally puts the cursor in the first line. There must be an
> autocommand that is moving it to the last used position, the problem is
> most likely in that autocommand.
>
> You can use $VIMRUNTIME/macros/editexisting.vim

I checked again with the raw binaries (no scripts loaded ¹): the same.

To reproduce:
:edit +$ some-file.ext

" reload the file:
:edit

" or (but it doesn't matter):
:noauto edit

Normally, reloading keeps the cursor position, unless
the first line matches ^\s\+\S and the current Vim is 7.4.675 or newer.


¹ -N -u NONE -i NONE --cmd "set go+=M go-=T"

--
Andy

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