Re: How to remember end of line when quitting/reopening in insert mode

On 2010-03-23, Jean Johner <jean.johner@cea.fr> wrote:
> On Mar 23, 6:24 pm, Gary Johnson <garyj...@spocom.com> wrote:
> ...
>
> Hi Gary,
> You are right, there is one column more in insert mode than in normal
> mode.
> This is clear if you have "set ruler" which indicates column 54 if you
> are positionned after the last available column 53 in normal mode.
> I guess that is why the option "set virtualedit=onemore" has been
> invented.
>
> Indeed setting virtualedit=onemore DOES SOLVE the problem as indicated
> previously.
>
> But this solution has unpleasant side-effects in normal mode.
> It must be possible to solve the problem differently (by indicating
> somehow to .viminfo that the quit has been done with the cursor at the
> end of a line in insert mode).
> It is the developpers' job to find a solution.

I would say rather that it is the developer's job to determine the
feasibility of a solution. It is not the developer's job to find a
solution to every issue perceived to be a problem by any user.

Nevertheless, I think Vim already contains the components of a
solution to this problem as I will illustrate.

Create a line containing some text like this and leave insert mode.

Mary had a little lamb

Now change that line by appending to the end of it, like this, and
again leave insert mode.

Mary had a little lamb that was white.

Now execute the following command and note the result.

:echo col("'[") col("']") col(".")
27 43 42

The last changed column, 43, is to the right of the current cursor
column, 42. Also, that line has only 42 columns. That indicates
that while Vim was last in insert mode it was appending to the
current line. To restore Vim's state to what it was before leaving
insert mode, the cursor would be moved to column 42 and the 'a'
normal-mode command executed. Alternatively, the :startinsert! ex
command could be executed.

I think someone could use that information to put the appropriate
logic into an appropriate autocommand, perhaps in evim.vim, and get
the behavior you want.

Regards,
Gary

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