[gerardarmando]

Originally Posted by jhowell

I recommend that you avoid doing this in a Kindle e-book. You would introduce worse problems than the one you are trying to solve.

Originally Posted by JSWolf

Or you could end up with a shorter left justified line. That is a Kindle oddity to try to prevent large gaps.

Originally Posted by Tex2002ans

Many worse issues would occur, especially at large font sizes + small screens.

Thanks. That's helpful.

Originally Posted by Tex2002ans

(And welcome to MobileRead!)

Thanks a lot.

Originally Posted by Tex2002ans

Are you working on books in a specific language that has these rules?

I do it always in english or spanish, but I use GREP/style for this, not actual nbsp character.

my GREP queries for this are two:

(?i)(?<=\w[[:punct:]]) (?=\w+[[:punct:]]*\r)
(?i)(?<=\w) (?=\w+[[:punct:]]*\r)

The first one adresses situations like a comma before the last word. Can't use just one code adding ? to check the punct because it's inside a lookbehind which doesn't supports *+?{,}.