WordWrap does not split on newlines #72

When using color tags (simple like [red] or more complex like [red:-:b] in a Modal, the line breaks stop working.

Demo code (based on modal demo code):

package main

import (
	"code.rocketnine.space/tslocum/cview"
)

func main() {
	app := cview.NewApplication()
	app.EnableMouse(true)

	modal := cview.NewModal()
	//modal.SetText("Do you want to\n\n quit the application?")
	//modal.SetText("[red:-:-]Do you[blue:-:-] want to\n\n quit the application?")
	modal.SetText("[red:-:-]Do you[-:-:-] want to\n\n quit the application?")
	modal.AddButtons([]string{"Quit", "Cancel"})
	modal.SetDoneFunc(func(buttonIndex int, buttonLabel string) {
		if buttonLabel == "Quit" {
			app.Stop()
		}
	})

	app.SetRoot(modal, false)
	if err := app.Run(); err != nil {
		panic(err)
	}
}

In this code, uncomment the first SetText and comment the 2nd and 3rd one => The line breaks will work.
In the other 2 example, it doesn't, but the colors work.

Tested on the latest commit 605d0123c1

(btw, thanks a lot for the other fix and the feature request, both tested today and they work as expected :)).

Thanks for reporting this. WordWrap is returning strings containing a newline character (when each line should be a separate string). This is the root cause for the issue above.

Would this also be the cause of modal needing 2 "\n" to actually display a line break?

package main

import (
	"code.rocketnine.space/tslocum/cview"
)

func main() {
	app := cview.NewApplication()
	app.EnableMouse(true)

	modal := cview.NewModal()
	modal.SetText("Do you want to quit\n the application?")
	//modal.SetText("Do you want to quit\n\n the application?")
	modal.AddButtons([]string{"Quit", "Cancel"})
	modal.SetDoneFunc(func(buttonIndex int, buttonLabel string) {
		if buttonLabel == "Quit" {
			app.Stop()
		}
	})

	app.SetRoot(modal, false)
	if err := app.Run(); err != nil {
		panic(err)
	}
}

In this case, having just one "\n" don't break the line. By adding 2 "\n" like in the commented line, then I see a line break in the modal.

Based on your comment, I'm thinking this may be related. But if that's not the case, happy to remove this comment and create a dedicated issue for this.

Thanks. I've looked into this a bit, and shared what I've found here: #27.

Closing in favor of #27.