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On 11-Jul-2019 10:45 +0200, Paul Jolly wrote:
> Thanks, Tony.
>
> Your response has helped me understand that my substitute solution
> will not work here either.
>
> Reason that neither solution will work is that it requires moving
> the cursor, and that's not at all desirable in this case.
I would not generally rule out cursor moves; within a function, Vim
doesn't update the screen, and you can save and restore the original
view via:
let l:save_view = winsaveview()
" Your moves here
call winrestview(l:save_view)
Many plugins use this.
> Effectively what I'm after here is a byte-offset based equivalents
> of bufsetline(), appendbufline() and deletebufline().
Given that Vim is a text editor, and text is organized in lines, I
don't think there's enough demand for such variants, especially since
workarounds should exist (see above).
- -- regards, ingo
> On Thu, 11 Jul 2019 at 09:32, Tony Mechelynck
> <[email protected]> wrote:
>>
>> On Thu, Jul 11, 2019 at 9:55 AM Paul Jolly <[email protected]>
>> wrote:
>>>
>>> Hi all,
>>>
>>> I've tried various permutations of search terms, but so far
>>> turned up a blank.
>>>
>>> Is there a function/similar that will allow me to set buffer
>>> contents between a start and end byte offset?
>>>
>>> If there isn't, I have a "backup" in the form of a :substitute
>>> like:
>>>
>>> %s/\%3l\%1c\_.*\%4l\%1c/hello\r/g
>>>
>>> (because I'm also deriving the line and col whilst deriving the
>>> byte offset) but I suspect the byte-offset based approach will
>>> be considerable more efficient if available.
>>
>> see :help go :help v_c
>>
>> You could "go" to your starting point, set Visual mode, go to
>> your ending point, and then "c"hange or "s"ubstitute.
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