Ancient Greek apostrophe marking elision

[James Kass via Unicode]

On 2019-01-27 7:09 PM, James Tauber via Unicode wrote:
> In my original post, I asked if a language-specific tailoring of the 
> text segmentation algorithm was the solution but no one here has 
> agreed so far.
If there are likely to be many languages requiring exceptions to the 
segmentation algorithm wrt U+2019, then perhaps it would be better to 
establish conventions using ZWJ/ZWNJ and adjust the algorithm 
accordingly so that it would be cross-languages.  (Rather than requiring 
additional and open ended language-specific tailorings.) (I inserted 
several combinations of ZWJ/ZWNJ into James Tauber's example, but 
couldn't improve the segmentation in LibreOffice, although it was 
possible to make it worse.)