How to mark the last part of line ?

1

I use markText() function to underline some characters in a line and indicate errors to end user.

I would like to underline the very last part of the line :
Eg:

some example
            ^ underline this (which is usually line return)

this would give: 
some example_

The main issue is that the part I want to underline/mark does not exist as a character of the line. The only possibility would be for the line to end up with an extra space which is not the case.

2

If there’s no text there, you indeed can’t mark it. You could add a bookmark with a widget there.

3

I have tried to use bookmark function (the widget is simply a <span>_</span> element).

It works but the widget prevent selecting the text correctly (eg: you click on widget by mistake and start dragging selection from there).

EDIT : what happen is the editor lose focus as soon as you click the widget (and thus stop responding to mouse events). It might be fixable.

4

Using the handleMouseEvents option to setBookmark might help with that.

5

This fixed the issue. Thanks a lot. We can close the topic :grinning: