Re: Create buffer without opening a window

On Mon, May 6, 2019 at 9:40 PM 'Lifepillar' via vim_use
<vim_use@googlegroups.com> wrote:
>
> On 6 May 2019, at 20:57, 'Andy Wokula' via vim_use <vim_use@googlegroups.com> wrote:
> >
> > Am 06.05.2019 um 17:02 schrieb 'Lifepillar' via vim_use:
> >> I would like to create a new buffer "in the background", without opening
> >> any new window, put some text into the buffer then write it to disk,
> >> without ever showing the buffer (the reason why I am not populating
> >> a List and use writefile() directly is that I need to perform some text
> >> manipulation such as reindenting the text). I thought that something
> >> like this would do it:
> >>
> >> let n = bufnr('my new buffer', 1)
> >> call setbufline(n, 1, 'hello')
> >> call writefile(getbufline(n, 1, "$"), './foo.txt')
> >>
> >> but the buffer stays empty and setbufline() returns 1. What should I do
> >> instead?
> >
> > (pretty sure that) setbufline() refuses to work with an unloaded buffer.
>
> Oh yes, you are right. So, I guess I will have to use :new or similar, then
> hide the window.
>
> Life.

What I do when I want to create a buffer, maybe do some pre-programmed
edits on it, and write it to disk, is write a function or user-command
to open the buffer (by :new or similar), do the necessary edits, and
close it (by :x or similar, which writes it if it is modified).
Depending on the importance of the edits, and on the values of some
window-size-related options, it may even happen unnoticed.

Best regards,
Tony.

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