Better handling of line feed characters

The standard CR and LF are handled out of the box, but things like FF (form feed) might deserve some special attention?

Test string for some various line feeds and whatnot
https://www.unicode.org/reports/tr14/#NL
https://www.unicode.org/versions/Unicode5.2.0/ch05.pdf#G10213

```
23 0a 23 0b 23 0c 23 0d 27 0e 23 0f 23 c2 85 26
e2 80 a8 24
e2 80 a9 25
```