[JSWolf]

If you are converting from PDF, then the solution to that is don't do it. It's not worth the hassle.

The problem is that if you have split dialog, you have other split lines. The only way to sort of fix some of it is to check for lack of punctuation at the end of the line and combine that with the next line. But the only way to fix it is to find a good PDF or pBook source and s/b compare. That's how it will be fixed.