Preview all regex matches as you type

[sambeau]

I would like to porpoise that, while finding text, ALL regex matches are highlighted in the text as you type.

Currently, if you do a find using a regex, the first match is highlighted as you type, and the position of all other matches appear dynamically in the scrollbar. This makes it tricky to discover if your regex is correct. A live update would make it possible to use trial and error before hitting select all matches (or at the very least boost everyone's confidence about pressing the button ).

[sambeau]

This was originally marked 'idea' but it seems clear now that it should have been an enhancement issue. Apologies for that, I've spent the last decade working on a system where we kept feature requests well away from bug reports.

[sambeau]

See #6757