How to set/maintain attributes on subranges of text in NSTextView as user edits the text?

I'd like to have custom line wrapping behavior for subranges of text in my

NSTextView

. Specifically, I'd like lines that look like list items (start with zero or more characters of leading whitespace, then a bullet character, then a space, then a non-space character) to wrap so that lines after the first line are indented two spaces right of the bullet.

I believe I can do this by setting an

NSParagraphStyle

on the subrange of text that represents the list item with a

headIndent

calculated to be the proper distance.

Beyond that, I don't know how to proceed. Where do I hook in to

NSTextView

to set this? How do I maintain (set, update, or remove) the

NSParagraphStyle

attribute and subrange as the user edits the text? This is an

NSTextView

so the text can be edited, copy/pasted, or read in from a file.

Is there a general (and performant) method for applying and maintaining attributes to subranges of text in an

NSTextView

?