replace - How to insert text before the first line if a certain word exists in the whole text with regex? -

i'd regex.

example:

convert this(where bla can text):

bla bla blaba bla bla blablbalba bala bla cocoa bla bla bla bla bla bla bla bla bla bla

to this:

chocolate unhealty! bla bla blaba bla bla blablbalba bala bla cocoa bla bla bla bla bla bla bla bla bla bla

(.*\n.*cocoa.*\n.*)

and replace by

chocolate unhealty!$1

() stores result can access later $1. .* matches char 0 unlimited times. \n matches newline.

Core code