regex - get last occurrence before match

Question

With regex, from the following sentence

my name is oscar my name is oscar my name is oscar my name is david my name is oscar

I would like to get the "oscar" immediately previous to david (in this case would be the 3rd "oscar")

I've tried many things but none of them have worked.

Any ideas? Thanks

*I've tried many things* - show them. And perhaps, some of those could be adjusted a little instead of writing from scratch — RomanPerekhrest, Jul 04 '19 at 12:02

score 2 · Accepted Answer · edited Jul 04 '19 at 12:05

2

oscar(?=(?:(?!oscar).)*david)

Find an "oscar" such that it is followed by any number of characters that do not start an "oscar", followed by a "david".

edited Jul 04 '19 at 12:05

Wiktor Stribiżew

answered Jul 04 '19 at 12:05

Amadan

1 Answers1