NBSP supposed to stretch, right?

[James Kass via Unicode]

On 2019-12-21 2:43 AM, Shriramana Sharma via Unicode wrote:
> Ohkay and that's very nice meaningful feedback from actual
> developer+user interaction. So the way I look at this going forward is
> that we have four options:
>
> 1)
>
> With the existing single NBSP character, provide a software option to
> either make it flexible or inflexible, but this preference should be
> stored as part of the document and not the application settings, else
> shared documents would not preserve the layout intended by the
> creator.
>
> <snip>

5)

Update the applications to treat NBSP correctly.  Process legacy data 
based on date/time stamp (or metadata) appropriately and offer users the 
option to update their legacy data algorithmically using proper 
non-stretching space characters such as FIGURE SPACE.

-

Options 1 and 5 have the advantage of not requiring the addition of yet 
more spacing characters to the Standard.