Inconsistent behavior between `Line::from` and `Line::raw`

[kdheepak]

Description

Line::from doesn't split the spans on new lines:

let line = Line::from("hello world\ngoodbye world");
dbg!(line.spans.len()) // 1

let line = Line::raw("hello world\ngoodbye world");
dbg!(line.spans.len()) // 2

[EdJoPaTo]

The idea of line is to have no new lines. So… not sure which is the more correct behaviour?

[kdheepak]

I would expect this to be correct behaviour:

let line = Line::raw("hello world\ngoodbye world");
dbg!(line.spans.len()) // 2

precisely because of the reason you've stated: Line shouldn't have newlines.

[joshka]

Two spans makes it possible to use &strs, one span would mean that an owned string would have to be constructed from the two lines. I think we currently just filter out the newlines when displaying the spans, so the behavior probably just works alright as-is, but going to two makes sense.