On Sun, Jan 10, 2016 at 1:21 PM, Bram Moolenaar <[email protected]> wrote:
>
> Justin Keyes wrote:
>
>> >> On Fri, Jan 8, 2016 at 12:15 PM, Charles E Campbell
>> >> <[email protected]> wrote:
>> >> > Ben Fritz wrote:
>> >> >> On Friday, January 8, 2016 at 2:33:04 AM UTC-6, Christian Brabandt 
>> >> >> wrote:
>> >> >>> Having said that, I personally don't like the <restore> argument as
>> >> >>> well. Perhaps we could use a new command modifier like
>> >> >>> :keeppos windo ...
>> >> >>>
>> >> >>> That could be useful for other commands as well.
>> >> >>>
>> >> >> I like that idea better as well.
>> >> >>
>> >> > I, too, like the "keeppos" (short for keepposn?) command modifier.
>> >> >
>> >> > I agree that one shouldn't change the default behavior due to backwards
>> >> > compatability considerations.   My own plugins typically do a
>> >> > save&restore position and so wouldn't be affected by whether or not that
>> >> > default behavior changed.
>> >>
>> >> It would not make sense for a plugin to depend on the current behavior
>> >> because the current behavior is unpredictable: if an error occurs the
>> >> cursor could end up anywhere; and the contents of each buffer are
>> >> unpredictable.
>> >>
>> >> So again I ask, can anyone name one reasonable, realistic scenario
>> >> where a plugin would break by fixing this long-standing pain-point? I
>> >> think that "backwards compatibility" has become the easy way out of
>> >> giving extra thought to making the occasional bold decision in favor
>> >> of usability.
>> >
>> > Then current behavior ends up on where the last change was done.  That
>> > can be useful.  Especially for :argdo, where there very well would not
>> > be a change at the cursor, or even in the current buffer.  E.g.:
>> >
>> >         :argdo %s/\<that_var\>/\<thatVar\>/g
>>
>> I don't think any plugin depends on that. And even if there exists
>> such a plugin, the usability benefit greatly outweighs the cost of a
>> broken plugin which made this fragile assumption instead of using the
>> '[ and '] registers. Good engineering weighs cost vs. benefit: the
>> cost here is hypothetical and small, and the benefit is that a
>> long-standing usability problem in Vim will be fixed.
>
> You misunderstand.  I want that command to end at the last change, not
> at whereever I happened to start it from.

Fair point. I retract my objection then.

Justin M. Keyes

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